// This is a part of the Active Template Library. // Copyright (C) Microsoft Corporation // All rights reserved. // // This source code is only intended as a supplement to the // Active Template Library Reference and related // electronic documentation provided with the library. // See these sources for detailed information regarding the // Active Template Library product. #ifndef __ATLDB_H__ #define __ATLDB_H__ #pragma once #ifndef _ATL_NO_PRAGMA_WARNINGS #pragma warning (push) #pragma warning(disable: 4702) // unreachable code #endif //!_ATL_NO_PRAGMA_WARNINGS // OLE DB Provider Support // Interface Impl Classes // // Data Source Object // // -Mandatory Interfaces: // IDBCreateSession // IDBInitialize // IDBProperties // IPersist // // Session Object // // -Mandatory Interfaces: // IGetDataSource // IOpenRowset // ISessionProperties // // -Optional Interfaces: // IDBCreateCommand // IDBSchemaRowset // // Rowset Object // // -Mandatory Interfaces: // IAccessor // IColumnsInfo // IConvertType // IRowset // IRowsetInfo // // -Optional Interfaces: // IRowsetIdentity // // Command Object // // -Mandatory Interfaces: // ICommand) // IAccessor) // ICommandProperties // ICommandText - derives from ICommand // IColumnsInfo // IConvertType #include #include #include #include #include #include #pragma warning(disable: 4244) #pragma pack(push,_ATL_PACKING) namespace ATL { inline DBROWCOUNT AbsVal(_In_ DBROWCOUNT val) { if( val < 0 ) return -val; else return val; } /////////////////////////////////////////////////////////////////////////// // Forwards template class CUtlPropInfo; class CColumnIds; /////////////////////////////////////////////////////////////////////////// // Additional Property Flag needed internally const int DBPROPFLAGS_CHANGE = 0x40000000; /////////////////////////////////////////////////////////////////////////// // ATL Provider Property Definitions #define ATLDB_NO_STRING 0x01000011 // Arbitrary value for AtlDumpProperty /////////////////////////////////////////////////////////////////////////// // ATL Provider Property Debugging Support inline void WINAPI AtlDumpPropsetIID( _In_ REFIID iid, _In_ DWORD dwStatus) { USES_CONVERSION_EX; // Handle the most common ones TCHAR szPropertySetName[100]; if(InlineIsEqualGUID(iid, DBPROPSET_DATASOURCEALL)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_DATASOURCEALL -")); } else if(InlineIsEqualGUID(iid, DBPROPSET_DATASOURCEINFOALL)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_DATASOURCEINFOALL -")); } else if(InlineIsEqualGUID(iid, DBPROPSET_ROWSETALL)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_ROWSETALL -")); } else if(InlineIsEqualGUID(iid,DBPROPSET_DBINITALL)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_DBINITALL -")); } else if(InlineIsEqualGUID(iid,DBPROPSET_SESSIONALL)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_SESSIONALL -")); } if(InlineIsEqualGUID(iid, DBPROPSET_DATASOURCE)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_DATASOURCE -")); } else if(InlineIsEqualGUID(iid, DBPROPSET_DATASOURCEINFO)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_DATASOURCEINFO -")); } else if(InlineIsEqualGUID(iid, DBPROPSET_ROWSET)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_ROWSET -")); } else if(InlineIsEqualGUID(iid,DBPROPSET_DBINIT)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_DBINIT -")); } else if(InlineIsEqualGUID(iid,DBPROPSET_SESSION)) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName),_T("DBPROPSET_SESSION -")); } else { LPOLESTR lpszName = NULL; if (SUCCEEDED(StringFromCLSID(iid, &lpszName))) { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName), SAL_Assume_notnull_for_opt_z_(OLE2T_EX(lpszName, _ATL_SAFE_ALLOCA_DEF_THRESHOLD))); } else { Checked::tcscpy_s(szPropertySetName, _countof(szPropertySetName), _T("Unknown DBPROPSET -")); } } if (dwStatus & 0x04 /* GETPROP_ERRORSOCCURRED */) { Checked::tcscat_s(szPropertySetName, _countof(szPropertySetName), _T(" NOT FOUND\n")); } else { Checked::tcscat_s(szPropertySetName, _countof(szPropertySetName), _T(" FOUND\n")); } OutputDebugString(szPropertySetName); } inline void WINAPI AtlDumpProperty( _In_ DWORD dwPropertyID, _In_ DWORD dwStatus) { TCHAR szProperty[100]; TCHAR szStatus[24]; switch(dwStatus) { case DBPROPSTATUS_OK: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("FOUND")); break; case DBPROPSTATUS_NOTSUPPORTED: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("NOT SUPPORTED")); break; case DBPROPSTATUS_BADVALUE: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("BAD VALUE")); break; case DBPROPSTATUS_BADOPTION: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("BAD OPTION")); break; case DBPROPSTATUS_BADCOLUMN: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("BAD COLUMN")); break; case DBPROPSTATUS_NOTALLSETTABLE: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("NOT ALL SETTABLE")); break; case DBPROPSTATUS_NOTSETTABLE: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("NOT SETTABLE")); break; case DBPROPSTATUS_NOTSET: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("NOT SET")); break; case DBPROPSTATUS_CONFLICTING: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("CONFLICTED")); break; case ATLDB_NO_STRING: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("WARNING! NO RESOURCE STRING FOR THIS PROPERTY! ADD IDS_")); break; default: Checked::tcscpy_s(szStatus, _countof(szStatus), _T("INDETERMINATE")); break; } _stprintf_s(szProperty, _countof(szProperty), _T("Property 0x%lxL -- %s\n"), dwPropertyID, szStatus); OutputDebugString(szProperty); } /////////////////////////////////////////////////////////////////////////// // Defines for debugging properties #ifdef _ATL_DEBUG_PROVIDER_PROPS #define _ATLDUMPPROPSETIID(iid, dwStatus) AtlDumpPropsetIID(iid, dwStatus) #define _ATLDUMPPROPERTY(dwPropertyID, dwStatus) AtlDumpProperty(dwPropertyID, dwStatus) #else #define _ATLDUMPPROPSETIID(iid, dwStatus) #define _ATLDUMPPROPERTY(dwPropertyID, dwStatus) #endif // _ATL_DEBUG_PROVIDER_PROPS // ------------- STRUCTURE DEFINITIONS ----------------------------------- struct UPROPVAL { DBPROPOPTIONS dwOption; CColumnIds* pCColumnIds; DWORD dwFlags; VARIANT vValue; }; struct UPROPINFO { DBPROPID dwPropId; ULONG ulIDS; VARTYPE VarType; DBPROPFLAGS dwFlags; union { DWORD_PTR dwVal; LPOLESTR szVal; }; DBPROPOPTIONS dwOption; }; struct UPROP { ULONG cPropIds; UPROPINFO** rgpUPropInfo; UPROPVAL* pUPropVal; }; struct PROPCOLID { DBID dbidProperty; // The column id information DBPROPOPTIONS dwOption; VARIANT vValue; }; typedef PROPCOLID* PPROPCOLID; struct UPROPSET { const GUID* pPropSet; ULONG cUPropInfo; UPROPINFO* pUPropInfo; DWORD dwFlags; bool bIsChained; }; struct ATLBINDINGS { DBBINDING* pBindings; DWORD dwRef;//DBREFCOUNT dwRef; DBCOUNTITEM cBindings; DBACCESSORFLAGS dwAccessorFlags; }; struct ATLCOLUMNINFO { LPOLESTR pwszName; ITypeInfo *pTypeInfo; DBORDINAL iOrdinal; DBCOLUMNFLAGS dwFlags; DBLENGTH ulColumnSize; DBTYPE wType; BYTE bPrecision; BYTE bScale; DBID columnid; DBBYTEOFFSET cbOffset; }; // // The following very large sections of defines are to implement auto determination // of Property map constants based on a stringized prop name. There is one set for // Type (VT_), one for Init Value, and one for Property flags. // #define ABORTPRESERVE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define ACTIVESESSIONS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define APPENDONLY_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define ASYNCTXNABORT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define ASYNCTXNCOMMIT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define AUTH_CACHE_AUTHINFO_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_ENCRYPT_PASSWORD_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_INTEGRATED_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_MASK_PASSWORD_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_PASSWORD_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_PERSIST_ENCRYPTED_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_PERSIST_SENSITIVE_AUTHINFO_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define AUTH_USERID_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define BLOCKINGSTORAGEOBJECTS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define BOOKMARKS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define BOOKMARKSKIPPED_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define BOOKMARKTYPE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define BYREFACCESSORS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define CACHEDEFERRED_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define CANFETCHBACKWARDS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define CANHOLDROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define CANSCROLLBACKWARDS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define CATALOGLOCATION_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define CATALOGTERM_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define CATALOGUSAGE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define CHANGEINSERTEDROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_CHANGE ) #define COL_AUTOINCREMENT_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_DEFAULT_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_DESCRIPTION_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_FIXEDLENGTH_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_NULLABLE_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_PRIMARYKEY_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_UNIQUE_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COLUMNDEFINITION_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define COLUMNRESTRICT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define COMMANDTIMEOUT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COMMITPRESERVE_Flags ( DBPROPFLAGS_ROWSET| DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define CONCATNULLBEHAVIOR_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define CURRENTCATALOG_Flags ( DBPROPFLAGS_DATASOURCE | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define DATASOURCENAME_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define DATASOURCEREADONLY_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define DBMSNAME_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define DBMSVER_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define DEFERRED_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define DELAYSTORAGEOBJECTS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define DSOTHREADMODEL_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define GROUPBY_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define HETEROGENEOUSTABLES_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define IAccessor_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IColumnsInfo_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IColumnsRowset_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IConnectionPointContainer_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define IConvertType_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IRowset_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IRowsetChange_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowsetIdentity_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IRowsetIndex_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IRowsetInfo_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IRowsetLocate_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define IRowsetResynch_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IRowsetScroll_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define IRowsetUpdate_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define ISupportErrorInfo_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define ILockBytes_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define ISequentialStream_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IStorage_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IStream_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IDENTIFIERCASE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define IMMOBILEROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_AUTOUPDATE_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_CLUSTERED_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_FILLFACTOR_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_INITIALSIZE_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_NULLCOLLATION_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_NULLS_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_PRIMARYKEY_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_SORTBOOKMARKS_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_TEMPINDEX_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_TYPE_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INDEX_UNIQUE_Flags ( DBPROPFLAGS_INDEX | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_DATASOURCE_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_HWND_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_IMPERSONATION_LEVEL_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_LCID_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_LOCATION_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_MODE_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_PROMPT_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_PROTECTION_LEVEL_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_PROVIDERSTRING_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_TIMEOUT_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define LITERALBOOKMARKS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define LITERALIDENTITY_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MAXINDEXSIZE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MAXOPENROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define MAXPENDINGROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define MAXROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define MAXROWSIZE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MAXROWSIZEINCLUDESBLOB_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MAXTABLESINSELECT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MAYWRITECOLUMN_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define MEMORYUSAGE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define MULTIPLEPARAMSETS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MULTIPLERESULTS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MULTIPLESTORAGEOBJECTS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MULTITABLEUPDATE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define NOTIFICATIONGRANULARITY_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define NOTIFICATIONPHASES_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYCOLUMNSET_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWDELETE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWFIRSTCHANGE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWINSERT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWRESYNCH_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWSETRELEASE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWSETFETCHPOSITIONCHANGE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWUNDOCHANGE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWUNDODELETE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWUNDOINSERT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NOTIFYROWUPDATE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define NULLCOLLATION_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define OLEOBJECTS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define ORDERBYCOLUMNSINSELECT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define ORDEREDBOOKMARKS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define OTHERINSERT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define OTHERUPDATEDELETE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define OUTPUTPARAMETERAVAILABILITY_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define OWNINSERT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define OWNUPDATEDELETE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define PERSISTENTIDTYPE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define PREPAREABORTBEHAVIOR_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define PREPARECOMMITBEHAVIOR_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define PROCEDURETERM_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define PROVIDERNAME_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define PROVIDEROLEDBVER_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define PROVIDERVER_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define QUICKRESTART_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define QUOTEDIDENTIFIERCASE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define REENTRANTEVENTS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define REMOVEDELETED_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define REPORTMULTIPLECHANGES_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_CHANGE ) #define RETURNPENDINGINSERTS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define ROWRESTRICT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define ROWSETCONVERSIONSONCOMMAND_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define ROWTHREADMODEL_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define SCHEMATERM_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SCHEMAUSAGE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SERVERCURSOR_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define SESS_AUTOCOMMITISOLEVELS_Flags ( DBPROPFLAGS_SESSION | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) #define SQLSUPPORT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define STRONGIDENTITY_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define STRUCTUREDSTORAGE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SUBQUERIES_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SUPPORTEDTXNDDL_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SUPPORTEDTXNISOLEVELS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SUPPORTEDTXNISORETAIN_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define TABLETERM_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define TBL_TEMPTABLE_Flags ( DBPROPFLAGS_TABLE | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define TRANSACTEDOBJECT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define UPDATABILITY_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define USERNAME_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) // 1.5 #define FILTERCOMPAREOPS_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ ) #define FINDCOMPAREOPS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define IChapteredRowset_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IDBAsynchStatus_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowsetFind_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowsetView_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IViewChapter_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IViewFilter_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IViewRowset_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IViewSort_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_ASYNCH_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define MAXOPENCHAPTERS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MAXORSINFILTER_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ ) #define MAXSORTCOLUMNS_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ ) #define ROWSET_ASYNCH_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define SORTONINDEX_Flags ( DBPROPFLAGS_VIEW | DBPROPFLAGS_READ ) // 2.0 #define IMultipleResults_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define DATASOURCE_TYPE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) //MDPROP #define AXES_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define FLATTENING_SUPPORT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_JOINCUBES_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define NAMED_LEVELS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) //#define RANGEROWSET_Flags ( ) #define MDX_SLICER_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) //#define MDX_CUBEQUALIFICATION_Flags ( ) #define MDX_OUTERREFERENCE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_QUERYBYPROPERTY_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_CASESUPPORT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_STRING_COMPOP_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_DESCFLAGS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_SET_FUNCTIONS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_MEMBER_FUNCTIONS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_NUMERIC_FUNCTIONS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_FORMULAS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define AGGREGATECELL_UPDATE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) //#define MDX_AGGREGATECELL_UPDATE_Flags ( ) #define MDX_OBJQUALIFICATION_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define MDX_NONMEASURE_EXPRESSONS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) // DBPROP #define ACCESSORDER_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define BOOKMARKINFO_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define INIT_CATALOG_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define ROW_BULKOPS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) //!!! #define PROVIDERFRIENDLYNAME_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define LOCKMODE_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define MULTIPLECONNECTIONS_Flags ( DBPROPFLAGS_DATASOURCE | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define UNIQUEROWS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define SERVERDATAONINSERT_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) //#define STORAGEFLAGS_Flags ( ) #define CONNECTIONSTATUS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define ALTERCOLUMN_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define COLUMNLCID_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ ) #define RESETDATASOURCE_Flags ( DBPROPFLAGS_DATASOURCE | DBPROPFLAGS_WRITE ) #define INIT_OLEDBSERVICES_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowsetRefresh_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define SERVERNAME_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define IParentRowset_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define HIDDENCOLUMNS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ ) #define PROVIDERMEMORY_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define CLIENTCURSOR_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) // 2.1 #define TRUSTEE_USERNAME_Flags ( DBPROPFLAGS_TRUSTEE | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define TRUSTEE_AUTHENTICATION_Flags ( DBPROPFLAGS_TRUSTEE | DBPROPFLAGS_WRITE ) #define TRUSTEE_NEWAUTHENTICATION_Flags ( DBPROPFLAGS_TRUSTEE | DBPROPFLAGS_WRITE ) #define IRow_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowChange_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowSchemaChange_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IGetRow_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IScopedOperations_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IBindResource_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define ICreateRow_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_BINDFLAGS_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_LOCKOWNER_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define GENERATEURL_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) //#define IDBBinderProperties_Flags ( ) #define IColumnsInfo2_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) //#define IRegisterProvider_Flags ( ) #define IGetSession_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IGetSourceRow_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowsetCurrentIndex_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define OPENROWSETSUPPORT_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define COL_ISLONG_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) // 2.5 #define COL_SEED_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COL_INCREMENT_Flags ( DBPROPFLAGS_COLUMN | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define INIT_GENERALTIMEOUT_Flags ( DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define COMSERVICES_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) // 2.6 #define OUTPUTSTREAM_Flags ( DBPROPFLAGS_STREAM | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define OUTPUTENCODING_Flags ( DBPROPFLAGS_STREAM | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define TABLESTATISTICS_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ ) #define SKIPROWCOUNTRESULTS_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define IRowsetBookmark_Flags ( DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE ) #define VISUALMODE_Flags ( DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_WRITE ) #define ABORTPRESERVE_Type VT_BOOL #define ACTIVESESSIONS_Type VT_I4 #define APPENDONLY_Type VT_BOOL #define ASYNCTXNABORT_Type VT_BOOL #define ASYNCTXNCOMMIT_Type VT_BOOL #define AUTH_CACHE_AUTHINFO_Type VT_BOOL #define AUTH_ENCRYPT_PASSWORD_Type VT_BOOL #define AUTH_INTEGRATED_Type VT_BSTR #define AUTH_MASK_PASSWORD_Type VT_BOOL #define AUTH_PASSWORD_Type VT_BSTR #define AUTH_PERSIST_ENCRYPTED_Type VT_BOOL #define AUTH_PERSIST_SENSITIVE_AUTHINFO_Type VT_BOOL #define AUTH_USERID_Type VT_BSTR #define BLOCKINGSTORAGEOBJECTS_Type VT_BOOL #define BOOKMARKS_Type VT_BOOL #define BOOKMARKSKIPPED_Type VT_BOOL #define BOOKMARKTYPE_Type VT_I4 #define BYREFACCESSORS_Type VT_BOOL #define CACHEDEFERRED_Type VT_BOOL #define CANFETCHBACKWARDS_Type VT_BOOL #define CANHOLDROWS_Type VT_BOOL #define CANSCROLLBACKWARDS_Type VT_BOOL #define CATALOGLOCATION_Type VT_I4 #define CATALOGTERM_Type VT_BSTR #define CATALOGUSAGE_Type VT_I4 #define CHANGEINSERTEDROWS_Type VT_BOOL #define COL_AUTOINCREMENT_Type VT_BOOL #define COL_DEFAULT_Type VT_BSTR #define COL_DESCRIPTION_Type VT_BSTR #define COL_FIXEDLENGTH_Type VT_BOOL #define COL_NULLABLE_Type VT_BOOL #define COL_PRIMARYKEY_Type VT_BOOL #define COL_UNIQUE_Type VT_BOOL #define COLUMNDEFINITION_Type VT_I4 #define COLUMNRESTRICT_Type VT_BOOL #define COMMANDTIMEOUT_Type VT_I4 #define COMMITPRESERVE_Type VT_BOOL #define CONCATNULLBEHAVIOR_Type VT_I4 #define CURRENTCATALOG_Type VT_BSTR #define DATASOURCENAME_Type VT_BSTR #define DATASOURCEREADONLY_Type VT_BOOL #define DBMSNAME_Type VT_BSTR #define DBMSVER_Type VT_BSTR #define DEFERRED_Type VT_BOOL #define DELAYSTORAGEOBJECTS_Type VT_BOOL #define DSOTHREADMODEL_Type VT_I4 #define GROUPBY_Type VT_I4 #define HETEROGENEOUSTABLES_Type VT_I4 #define IAccessor_Type VT_BOOL #define IColumnsInfo_Type VT_BOOL #define IColumnsRowset_Type VT_BOOL #define IConnectionPointContainer_Type VT_BOOL #define IConvertType_Type VT_BOOL #define IRowset_Type VT_BOOL #define IRowsetChange_Type VT_BOOL #define IRowsetIdentity_Type VT_BOOL #define IRowsetIndex_Type VT_BOOL #define IRowsetInfo_Type VT_BOOL #define IRowsetLocate_Type VT_BOOL #define IRowsetResynch_Type VT_BOOL #define IRowsetScroll_Type VT_BOOL #define IRowsetUpdate_Type VT_BOOL #define ISupportErrorInfo_Type VT_BOOL #define ILockBytes_Type VT_BOOL #define ISequentialStream_Type VT_BOOL #define IStorage_Type VT_BOOL #define IStream_Type VT_BOOL #define IDENTIFIERCASE_Type VT_I4 #define IMMOBILEROWS_Type VT_BOOL #define INDEX_AUTOUPDATE_Type VT_BOOL #define INDEX_CLUSTERED_Type VT_BOOL #define INDEX_FILLFACTOR_Type VT_I4 #define INDEX_INITIALSIZE_Type VT_I4 #define INDEX_NULLCOLLATION_Type VT_I4 #define INDEX_NULLS_Type VT_I4 #define INDEX_PRIMARYKEY_Type VT_BOOL #define INDEX_SORTBOOKMARKS_Type VT_BOOL #define INDEX_TEMPINDEX_Type VT_BOOL #define INDEX_TYPE_Type VT_I4 #define INDEX_UNIQUE_Type VT_BOOL #define INIT_DATASOURCE_Type VT_BSTR #define INIT_HWND_Type VT_I4 #define INIT_IMPERSONATION_LEVEL_Type VT_I4 #define INIT_LCID_Type VT_I4 #define INIT_LOCATION_Type VT_BSTR #define INIT_MODE_Type VT_I4 #define INIT_PROMPT_Type VT_I2 #define INIT_PROTECTION_LEVEL_Type VT_I4 #define INIT_PROVIDERSTRING_Type VT_BSTR #define INIT_TIMEOUT_Type VT_I4 #define LITERALBOOKMARKS_Type VT_BOOL #define LITERALIDENTITY_Type VT_BOOL #define MAXINDEXSIZE_Type VT_I4 #define MAXOPENROWS_Type VT_I4 #define MAXPENDINGROWS_Type VT_I4 #define MAXROWS_Type VT_I4 #define MAXROWSIZE_Type VT_I4 #define MAXROWSIZEINCLUDESBLOB_Type VT_BOOL #define MAXTABLESINSELECT_Type VT_I4 #define MAYWRITECOLUMN_Type VT_BOOL #define MEMORYUSAGE_Type VT_I4 #define MULTIPLEPARAMSETS_Type VT_BOOL #define MULTIPLERESULTS_Type VT_I4 #define MULTIPLESTORAGEOBJECTS_Type VT_BOOL #define MULTITABLEUPDATE_Type VT_BOOL #define NOTIFICATIONGRANULARITY_Type VT_I4 #define NOTIFICATIONPHASES_Type VT_I4 #define NOTIFYCOLUMNSET_Type VT_I4 #define NOTIFYROWDELETE_Type VT_I4 #define NOTIFYROWFIRSTCHANGE_Type VT_I4 #define NOTIFYROWINSERT_Type VT_I4 #define NOTIFYROWRESYNCH_Type VT_I4 #define NOTIFYROWSETRELEASE_Type VT_I4 #define NOTIFYROWSETFETCHPOSITIONCHANGE_Type VT_I4 #define NOTIFYROWUNDOCHANGE_Type VT_I4 #define NOTIFYROWUNDODELETE_Type VT_I4 #define NOTIFYROWUNDOINSERT_Type VT_I4 #define NOTIFYROWUPDATE_Type VT_I4 #define NULLCOLLATION_Type VT_I4 #define OLEOBJECTS_Type VT_I4 #define ORDERBYCOLUMNSINSELECT_Type VT_BOOL #define ORDEREDBOOKMARKS_Type VT_BOOL #define OTHERINSERT_Type VT_BOOL #define OTHERUPDATEDELETE_Type VT_BOOL #define OUTPUTPARAMETERAVAILABILITY_Type VT_I4 #define OWNINSERT_Type VT_BOOL #define OWNUPDATEDELETE_Type VT_BOOL #define PERSISTENTIDTYPE_Type VT_I4 #define PREPAREABORTBEHAVIOR_Type VT_I4 #define PREPARECOMMITBEHAVIOR_Type VT_I4 #define PROCEDURETERM_Type VT_BSTR #define PROVIDERNAME_Type VT_BSTR #define PROVIDEROLEDBVER_Type VT_BSTR #define PROVIDERVER_Type VT_BSTR #define QUICKRESTART_Type VT_BOOL #define QUOTEDIDENTIFIERCASE_Type VT_I4 #define REENTRANTEVENTS_Type VT_BOOL #define REMOVEDELETED_Type VT_BOOL #define REPORTMULTIPLECHANGES_Type VT_BOOL #define RETURNPENDINGINSERTS_Type VT_BOOL #define ROWRESTRICT_Type VT_BOOL #define ROWSETCONVERSIONSONCOMMAND_Type VT_BOOL #define ROWTHREADMODEL_Type VT_I4 #define SCHEMATERM_Type VT_BSTR #define SCHEMAUSAGE_Type VT_I4 #define SERVERCURSOR_Type VT_BOOL #define SESS_AUTOCOMMITISOLEVELS_Type VT_I4 #define SQLSUPPORT_Type VT_I4 #define STRONGIDENTITY_Type VT_BOOL #define STRUCTUREDSTORAGE_Type VT_I4 #define SUBQUERIES_Type VT_I4 #define SUPPORTEDTXNDDL_Type VT_I4 #define SUPPORTEDTXNISOLEVELS_Type VT_I4 #define SUPPORTEDTXNISORETAIN_Type VT_I4 #define TABLETERM_Type VT_BSTR #define TBL_TEMPTABLE_Type VT_BOOL #define TRANSACTEDOBJECT_Type VT_BOOL #define UPDATABILITY_Type VT_I4 #define USERNAME_Type VT_BSTR // 1.5 #define FILTERCOMPAREOPS_Type VT_I4 #define FINDCOMPAREOPS_Type VT_I4 #define IChapteredRowset_Type VT_BOOL #define IDBAsynchStatus_Type VT_BOOL #define IRowsetFind_Type VT_BOOL #define IRowsetView_Type VT_BOOL #define IViewChapter_Type VT_BOOL #define IViewFilter_Type VT_BOOL #define IViewRowset_Type VT_BOOL #define IViewSort_Type VT_BOOL #define INIT_ASYNCH_Type VT_I4 #define MAXOPENCHAPTERS_Type VT_I4 #define MAXORSINFILTER_Type VT_I4 #define MAXSORTCOLUMNS_Type VT_I4 #define ROWSET_ASYNCH_Type VT_I4 #define SORTONINDEX_Type VT_BOOL // 2.0 #define IMultipleResults_Flags_Type VT_BOOL #define DATASOURCE_TYPE_Flags_Type VT_I4 //MDPROP #define AXES_Type VT_I4 #define FLATTENING_SUPPORT_Type VT_I4 #define MDX_JOINCUBES_Type VT_I4 #define NAMED_LEVELS_Type VT_I4 //#define RANGEROWSET_Type #define MDX_SLICER_Type VT_I4 //#define MDX_CUBEQUALIFICATION_Type #define MDX_OUTERREFERENCE_Type VT_I4 #define MDX_QUERYBYPROPERTY_Type VT_BOOL #define MDX_CASESUPPORT_Type VT_I4 #define MDX_STRING_COMPOP_Type VT_I4 #define MDX_DESCFLAGS_Type VT_I4 #define MDX_SET_FUNCTIONS_Type VT_I4 #define MDX_MEMBER_FUNCTIONS_Type VT_I4 #define MDX_NUMERIC_FUNCTIONS_Type VT_I4 #define MDX_FORMULAS_Type VT_I4 #define AGGREGATECELL_UPDATE_Type VT_I4 //#define MDX_AGGREGATECELL_UPDATE_Type #define MDX_OBJQUALIFICATION_Type VT_I4 #define MDX_NONMEASURE_EXPRESSONS_Type VT_I4 // DBPROP #define ACCESSORDER_Type VT_I4 #define BOOKMARKINFO_Type VT_I4 #define INIT_CATALOG_Type VT_BSTR #define ROW_BULKOPS_Type VT_I4 #define PROVIDERFRIENDLYNAME_Type VT_BSTR #define LOCKMODE_Type VT_I4 #define MULTIPLECONNECTIONS_Type VT_BOOL #define UNIQUEROWS_Type VT_BOOL #define SERVERDATAONINSERT_Type VT_BOOL //#define STORAGEFLAGS_Type #define CONNECTIONSTATUS_Type VT_I4 #define ALTERCOLUMN_Type VT_I4 #define COLUMNLCID_Type VT_I4 #define RESETDATASOURCE_Type VT_I4 #define INIT_OLEDBSERVICES_Type VT_I4 #define IRowsetRefresh_Type VT_BOOL #define SERVERNAME_Type VT_BSTR #define IParentRowset_Type VT_BOOL #define HIDDENCOLUMNS_Type VT_I4 #define PROVIDERMEMORY_Type VT_BOOL #define CLIENTCURSOR_Type VT_BOOL // 2.1 #define TRUSTEE_USERNAME_Type VT_BSTR #define TRUSTEE_AUTHENTICATION_Type VT_BSTR #define TRUSTEE_NEWAUTHENTICATION_Type VT_BSTR #define IRow_Type VT_BOOL #define IRowChange_Type VT_BOOL #define IRowSchemaChange_Type VT_BOOL #define IGetRow_Type VT_BOOL #define IScopedOperations_Type VT_BOOL #define IBindResource_Type VT_BOOL #define ICreateRow_Type VT_BOOL #define INIT_BINDFLAGS_Type VT_I4 #define INIT_LOCKOWNER_Type VT_BSTR #define GENERATEURL_Type VT_I4 //#define IDBBinderProperties_Type #define IColumnsInfo2_Type VT_BOOL //#define IRegisterProvider_Type #define IGetSession_Type VT_BOOL #define IGetSourceRow_Type VT_BOOL #define IRowsetCurrentIndex_Type VT_BOOL #define OPENROWSETSUPPORT_Type VT_I4 #define COL_ISLONG_Type VT_BOOL // 2.5 //#define COL_SEED_Type VT_VARIANT //!!! //#define COL_INCREMENT_Type VT_VARIANT //!!! #define INIT_GENERALTIMEOUT_Type VT_I4 #define COMSERVICES_Type VT_I4 // 2.6 #define OUTPUTSTREAM_Type VT_UNKNOWN #define OUTPUTENCODING_Type VT_BSTR #define TABLESTATISTICS_Type VT_I4 #define SKIPROWCOUNTRESULTS_Type VT_BOOL #define IRowsetBookmark_Type VT_BOOL #define VISUALMODE_Type VT_I4 #define ABORTPRESERVE_Value ATL_VARIANT_FALSE #define ACTIVESESSIONS_Value 0 #define APPENDONLY_Value ATL_VARIANT_FALSE #define ASYNCTXNABORT_Value ATL_VARIANT_FALSE #define ASYNCTXNCOMMIT_Value ATL_VARIANT_FALSE #define AUTH_CACHE_AUTHINFO_Value ATL_VARIANT_FALSE #define AUTH_ENCRYPT_PASSWORD_Value ATL_VARIANT_FALSE #define AUTH_INTEGRATED_Value OLESTR("") #define AUTH_MASK_PASSWORD_Value ATL_VARIANT_FALSE #define AUTH_PASSWORD_Value OLESTR("") #define AUTH_PERSIST_ENCRYPTED_Value ATL_VARIANT_FALSE #define AUTH_PERSIST_SENSITIVE_AUTHINFO_Value ATL_VARIANT_FALSE #define AUTH_USERID_Value OLESTR("") #define BLOCKINGSTORAGEOBJECTS_Value ATL_VARIANT_FALSE #define BOOKMARKS_Value ATL_VARIANT_FALSE #define BOOKMARKSKIPPED_Value ATL_VARIANT_FALSE #define BOOKMARKTYPE_Value 0 #define BYREFACCESSORS_Value ATL_VARIANT_FALSE #define CACHEDEFERRED_Value ATL_VARIANT_FALSE #define CANFETCHBACKWARDS_Value ATL_VARIANT_TRUE #define CANHOLDROWS_Value ATL_VARIANT_TRUE #define CANSCROLLBACKWARDS_Value ATL_VARIANT_TRUE #define CATALOGLOCATION_Value 0 #define CATALOGTERM_Value OLESTR("") #define CATALOGUSAGE_Value 0 #define CHANGEINSERTEDROWS_Value ATL_VARIANT_FALSE #define COL_AUTOINCREMENT_Value ATL_VARIANT_FALSE #define COL_DEFAULT_Value OLESTR("") #define COL_DESCRIPTION_Value OLESTR("") #define COL_FIXEDLENGTH_Value ATL_VARIANT_FALSE #define COL_NULLABLE_Value ATL_VARIANT_FALSE #define COL_PRIMARYKEY_Value ATL_VARIANT_FALSE #define COL_UNIQUE_Value ATL_VARIANT_FALSE #define COLUMNDEFINITION_Value 0 #define COLUMNRESTRICT_Value ATL_VARIANT_FALSE #define COMMANDTIMEOUT_Value 0 #define COMMITPRESERVE_Value ATL_VARIANT_FALSE #define CONCATNULLBEHAVIOR_Value 0 #define CURRENTCATALOG_Value OLESTR("") #define DATASOURCENAME_Value OLESTR("") #define DATASOURCEREADONLY_Value ATL_VARIANT_TRUE #define DBMSNAME_Value OLESTR("") #define DBMSVER_Value OLESTR("") #define DEFERRED_Value ATL_VARIANT_FALSE #define DELAYSTORAGEOBJECTS_Value ATL_VARIANT_FALSE #define DSOTHREADMODEL_Value DBPROPVAL_RT_APTMTTHREAD #define GROUPBY_Value 0 #define HETEROGENEOUSTABLES_Value 0 #define IAccessor_Value ATL_VARIANT_TRUE #define IColumnsInfo_Value ATL_VARIANT_TRUE #define IColumnsRowset_Value ATL_VARIANT_FALSE #define IConnectionPointContainer_Value ATL_VARIANT_FALSE #define IConvertType_Value ATL_VARIANT_TRUE #define IRowset_Value ATL_VARIANT_TRUE #define IRowsetChange_Value ATL_VARIANT_FALSE #define IRowsetIdentity_Value ATL_VARIANT_TRUE #define IRowsetIndex_Value ATL_VARIANT_FALSE #define IRowsetInfo_Value ATL_VARIANT_TRUE #define IRowsetLocate_Value ATL_VARIANT_FALSE #define IRowsetResynch_Value ATL_VARIANT_FALSE #define IRowsetScroll_Value ATL_VARIANT_FALSE #define IRowsetUpdate_Value ATL_VARIANT_FALSE #define ISupportErrorInfo_Value ATL_VARIANT_FALSE #define ILockBytes_Value ATL_VARIANT_FALSE #define ISequentialStream_Value ATL_VARIANT_FALSE #define IStorage_Value ATL_VARIANT_FALSE #define IStream_Value ATL_VARIANT_FALSE #define IDENTIFIERCASE_Value 0 #define IMMOBILEROWS_Value ATL_VARIANT_FALSE #define INDEX_AUTOUPDATE_Value ATL_VARIANT_FALSE #define INDEX_CLUSTERED_Value ATL_VARIANT_FALSE #define INDEX_FILLFACTOR_Value 0 #define INDEX_INITIALSIZE_Value 0 #define INDEX_NULLCOLLATION_Value 0 #define INDEX_NULLS_Value 0 #define INDEX_PRIMARYKEY_Value ATL_VARIANT_FALSE #define INDEX_SORTBOOKMARKS_Value ATL_VARIANT_FALSE #define INDEX_TEMPINDEX_Value ATL_VARIANT_FALSE #define INDEX_TYPE_Value 0 #define INDEX_UNIQUE_Value ATL_VARIANT_FALSE #define INIT_DATASOURCE_Value OLESTR("") #define INIT_HWND_Value 0 #define INIT_IMPERSONATION_LEVEL_Value 0 #define INIT_LCID_Value 0 #define INIT_LOCATION_Value OLESTR("") #define INIT_MODE_Value DB_MODE_READ #define INIT_PROMPT_Value DBPROMPT_NOPROMPT #define INIT_PROTECTION_LEVEL_Value 0 #define INIT_PROVIDERSTRING_Value OLESTR("") #define INIT_TIMEOUT_Value 0 #define LITERALBOOKMARKS_Value ATL_VARIANT_FALSE #define LITERALIDENTITY_Value ATL_VARIANT_FALSE #define MAXINDEXSIZE_Value 0 #define MAXOPENROWS_Value 0 #define MAXPENDINGROWS_Value 0 #define MAXROWS_Value 0 #define MAXROWSIZE_Value 0 #define MAXROWSIZEINCLUDESBLOB_Value ATL_VARIANT_FALSE #define MAXTABLESINSELECT_Value 0 #define MAYWRITECOLUMN_Value ATL_VARIANT_FALSE #define MEMORYUSAGE_Value 0 #define MULTIPLEPARAMSETS_Value ATL_VARIANT_FALSE #define MULTIPLERESULTS_Value 0 #define MULTIPLESTORAGEOBJECTS_Value ATL_VARIANT_FALSE #define MULTITABLEUPDATE_Value ATL_VARIANT_FALSE #define NOTIFICATIONGRANULARITY_Value DBPROPVAL_NT_SINGLEROW #define NOTIFICATIONPHASES_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER | DBPROPVAL_NP_FAILEDTODO | DBPROPVAL_NP_DIDEVENT #define NOTIFYCOLUMNSET_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWDELETE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWFIRSTCHANGE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWINSERT_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWRESYNCH_Value 0 #define NOTIFYROWSETRELEASE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWSETFETCHPOSITIONCHANGE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWUNDOCHANGE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWUNDODELETE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWUNDOINSERT_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NOTIFYROWUPDATE_Value DBPROPVAL_NP_OKTODO | DBPROPVAL_NP_ABOUTTODO | DBPROPVAL_NP_SYNCHAFTER #define NULLCOLLATION_Value 0 #define OLEOBJECTS_Value 0 #define ORDERBYCOLUMNSINSELECT_Value ATL_VARIANT_FALSE #define ORDEREDBOOKMARKS_Value ATL_VARIANT_FALSE #define OTHERINSERT_Value ATL_VARIANT_FALSE #define OTHERUPDATEDELETE_Value ATL_VARIANT_FALSE #define OUTPUTPARAMETERAVAILABILITY_Value 0 #define OWNINSERT_Value ATL_VARIANT_FALSE #define OWNUPDATEDELETE_Value ATL_VARIANT_FALSE #define PERSISTENTIDTYPE_Value 0 #define PREPAREABORTBEHAVIOR_Value 0 #define PREPARECOMMITBEHAVIOR_Value 0 #define PROCEDURETERM_Value OLESTR("") #define PROVIDERNAME_Value OLESTR("") #define PROVIDEROLEDBVER_Value OLESTR("02.60") #define PROVIDERVER_Value OLESTR("01.00") #define QUICKRESTART_Value ATL_VARIANT_FALSE #define QUOTEDIDENTIFIERCASE_Value 0 #define REENTRANTEVENTS_Value ATL_VARIANT_FALSE #define REMOVEDELETED_Value ATL_VARIANT_FALSE #define REPORTMULTIPLECHANGES_Value ATL_VARIANT_FALSE #define RETURNPENDINGINSERTS_Value ATL_VARIANT_FALSE #define ROWRESTRICT_Value ATL_VARIANT_FALSE #define ROWSETCONVERSIONSONCOMMAND_Value ATL_VARIANT_TRUE #define ROWTHREADMODEL_Value 0 #define SCHEMATERM_Value OLESTR("") #define SCHEMAUSAGE_Value 0 #define SERVERCURSOR_Value ATL_VARIANT_FALSE #define SESS_AUTOCOMMITISOLEVELS_Value 0 #define SQLSUPPORT_Value 0 #define STRONGIDENTITY_Value ATL_VARIANT_FALSE #define STRUCTUREDSTORAGE_Value 0 #define SUBQUERIES_Value 0 #define SUPPORTEDTXNDDL_Value 0 #define SUPPORTEDTXNISOLEVELS_Value 0 #define SUPPORTEDTXNISORETAIN_Value 0 #define TABLETERM_Value OLESTR("") #define TBL_TEMPTABLE_Value ATL_VARIANT_FALSE #define TRANSACTEDOBJECT_Value ATL_VARIANT_FALSE #define UPDATABILITY_Value 0 #define USERNAME_Value OLESTR("") // 1.5 #define FILTERCOMPAREOPS_Value 0 #define FINDCOMPAREOPS_Value 0 #define IChapteredRowset_Value ATL_VARIANT_FALSE #define IDBAsynchStatus_Value ATL_VARIANT_FALSE #define IRowsetFind_Value ATL_VARIANT_FALSE #define IRowsetView_Value ATL_VARIANT_FALSE #define IViewChapter_Value ATL_VARIANT_FALSE #define IViewFilter_Value ATL_VARIANT_FALSE #define IViewRowset_Value ATL_VARIANT_FALSE #define IViewSort_Value ATL_VARIANT_FALSE #define INIT_ASYNCH_Value 0 #define MAXOPENCHAPTERS_Value 0 #define MAXORSINFILTER_Value 0 #define MAXSORTCOLUMNS_Value 0 #define ROWSET_ASYNCH_Value 0 #define SORTONINDEX_Value ATL_VARIANT_FALSE // 2.0 #define IMultipleResults_Value ATL_VARIANT_FALSE #define DATASOURCE_TYPE_Value 0 //MDPROP #define AXES_Value 0 #define FLATTENING_SUPPORT_Value 0 #define MDX_JOINCUBES_Value 0 #define NAMED_LEVELS_Value 0 //#define RANGEROWSET_Value 0 #define MDX_SLICER_Value 0 //#define MDX_CUBEQUALIFICATION_Value #define MDX_OUTERREFERENCE_Value 0 #define MDX_QUERYBYPROPERTY_Value ATL_VARIANT_FALSE #define MDX_CASESUPPORT_Value 0 #define MDX_STRING_COMPOP_Value 0 #define MDX_DESCFLAGS_Value 0 #define MDX_SET_FUNCTIONS_Value 0 #define MDX_MEMBER_FUNCTIONS_Value 0 #define MDX_NUMERIC_FUNCTIONS_Value 0 #define MDX_FORMULAS_Value 0 #define AGGREGATECELL_UPDATE_Value 0 //#define MDX_AGGREGATECELL_UPDATE_Value #define MDX_OBJQUALIFICATION_Value 0 #define MDX_NONMEASURE_EXPRESSONS_Value 0 // DBPROP #define ACCESSORDER_Value 0 #define BOOKMARKINFO_Value 0 #define INIT_CATALOG_Value OLESTR("") #define ROW_BULKOPS_Value 0 #define PROVIDERFRIENDLYNAME_Value OLESTR("") #define LOCKMODE_Value 0 #define MULTIPLECONNECTIONS_Value ATL_VARIANT_FALSE #define UNIQUEROWS_Value ATL_VARIANT_FALSE #define SERVERDATAONINSERT_Value ATL_VARIANT_FALSE //#define STORAGEFLAGS_Value #define CONNECTIONSTATUS_Value 0 #define ALTERCOLUMN_Value 0 #define COLUMNLCID_Value 0 #define RESETDATASOURCE_Value 0 #define INIT_OLEDBSERVICES_Value 0 #define IRowsetRefresh_Value ATL_VARIANT_FALSE #define SERVERNAME_Value OLESTR("") #define IParentRowset_Value ATL_VARIANT_FALSE #define HIDDENCOLUMNS_Value 0 #define PROVIDERMEMORY_Value ATL_VARIANT_FALSE #define CLIENTCURSOR_Value ATL_VARIANT_FALSE // 2.1 #define TRUSTEE_USERNAME_Value OLESTR("") #define TRUSTEE_AUTHENTICATION_Value OLESTR("") #define TRUSTEE_NEWAUTHENTICATION_Value OLESTR("") #define IRow_Value ATL_VARIANT_FALSE #define IRowChange_Value ATL_VARIANT_FALSE #define IRowSchemaChange_Value ATL_VARIANT_FALSE #define IGetRow_Value ATL_VARIANT_FALSE #define IScopedOperations_Value ATL_VARIANT_FALSE #define IBindResource_Value ATL_VARIANT_FALSE #define ICreateRow_Value ATL_VARIANT_FALSE #define INIT_BINDFLAGS_Value 0 #define INIT_LOCKOWNER_Value OLESTR("") #define GENERATEURL_Value 0 //#define IDBBinderProperties_Value #define IColumnsInfo2_Value ATL_VARIANT_FALSE //#define IRegisterProvider_Value #define IGetSession_Value ATL_VARIANT_FALSE #define IGetSourceRow_Value ATL_VARIANT_FALSE #define IRowsetCurrentIndex_Value ATL_VARIANT_FALSE #define OPENROWSETSUPPORT_Value 0 #define COL_ISLONG_Value ATL_VARIANT_FALSE // 2.5 //#define COL_SEED_Value //#define COL_INCREMENT_Value #define INIT_GENERALTIMEOUT_Value 0 #define COMSERVICES_Value 0 // 2.6 #define OUTPUTSTREAM_Value NULL #define OUTPUTENCODING_Value NULL #define TABLESTATISTICS_Value 0 #define SKIPROWCOUNTRESULTS_Value ATL_VARIANT_FALSE #define IRowsetBookmark_Value ATL_VARIANT_FALSE #define VISUALMODE_Value MDPROPVAL_VISUAL_MODE_DEFAULT #define OUT_OF_LINE virtual #define BEGIN_PROPSET_MAP(Class) \ static ATL::UPROPSET* _GetPropSet( \ _Out_opt_ ULONG* pNumPropSets,\ _Out_ ULONG* pcElemPerSupported, \ _Inout_opt_ ATL::UPROPSET* pSet = NULL, \ _Out_opt_ GUID* pguidSet = NULL) \ { \ typedef Class _PropSetClass; \ USES_ATL_SAFE_ALLOCA;\ ULONG& cElemsMax = *pcElemPerSupported; \ cElemsMax = 0; \ ULONG nCurProp = 0; \ int cRemainder = 0; \ if (pguidSet == NULL) \ pguidSet = (GUID*)&GUID_NULL; #define BEGIN_PROPERTY_SET_EX(guid, flags) \ if (pNumPropSets != NULL) \ { \ ATLASSUME(pSet != NULL); \ pSet[nCurProp].pPropSet = &guid; \ pSet[nCurProp].dwFlags = flags; \ pSet[nCurProp].bIsChained = false; \ } \ static const ATL::UPROPINFO aProperty##guid[] = \ { #define BEGIN_PROPERTY_SET(guid) BEGIN_PROPERTY_SET_EX(guid, 0) //DBPROP_ macros #define PROPERTY_INFO_ENTRY_EX(dwPropID, vt, dwFlags, value, options) DBPROP_##dwPropID, IDS_DBPROP_##dwPropID, vt, dwFlags, (DWORD_PTR)value, (DBPROPOPTIONS)options, #define PROPERTY_INFO_ENTRY_VALUE(dwPropID, value) PROPERTY_INFO_ENTRY_EX(dwPropID, dwPropID##_Type, dwPropID##_Flags, value, 0) #define PROPERTY_INFO_ENTRY_VALUE_FLAGS(dwPropID, value, dwFlags) PROPERTY_INFO_ENTRY_EX(dwPropID, dwPropID##_Type, dwFlags, value, 0) #define PROPERTY_INFO_ENTRY(dwPropID) PROPERTY_INFO_ENTRY_VALUE(dwPropID, dwPropID##_Value) //MDPROP_ macros #define MDPROPERTY_INFO_ENTRY_EX(dwPropID, vt, dwFlags, value, options) MDPROP_##dwPropID, IDS_MDPROP_##dwPropID, vt, dwFlags, (DWORD_PTR)value, (DBPROPOPTIONS)options, #define MDPROPERTY_INFO_ENTRY_VALUE(dwPropID, value) MDPROPERTY_INFO_ENTRY_EX(dwPropID, dwPropID##_Type, dwPropID##_Flags, value, 0) #define MDPROPERTY_INFO_ENTRY_VALUE_FLAGS(dwPropID, value, dwFlags) MDPROPERTY_INFO_ENTRY_EX(dwPropID, dwPropID##_Type, dwFlags, value, 0) #define MDPROPERTY_INFO_ENTRY(dwPropID) MDPROPERTY_INFO_ENTRY_VALUE(dwPropID, dwPropID##_Value) #define END_PROPERTY_SET(guid) \ }; \ if (pNumPropSets != NULL) \ { \ pSet[nCurProp].pUPropInfo = (ATL::UPROPINFO*)aProperty##guid; \ pSet[nCurProp].cUPropInfo = sizeof(aProperty##guid) / sizeof(ATL::UPROPINFO); \ cRemainder = (pSet[nCurProp].cUPropInfo % 32) ? 1 : 0; \ if (cElemsMax < (pSet[nCurProp].cUPropInfo / 32 + cRemainder)) \ { \ cElemsMax = (pSet[nCurProp].cUPropInfo / 32 + cRemainder); \ } \ } \ nCurProp++; #define CHAIN_PROPERTY_SET(ChainClass) \ ULONG cPropSets##ChainClass, cElsSupported##ChainClass; \ int cSets##ChainClass = (int)(DWORD_PTR)ChainClass::_GetPropSet(NULL, &cElsSupported##ChainClass); \ if (pNumPropSets != NULL) \ { \ ATL::UPROPSET* pSetA=(ATL::UPROPSET*)_ATL_SAFE_ALLOCA(::ATL::AtlMultiplyThrow(static_cast(sizeof(ATL::UPROPSET)),cSets##ChainClass),_ATL_SAFE_ALLOCA_DEF_THRESHOLD);\ ATL::UPROPSET* pSetTemp = ChainClass::_GetPropSet(&cPropSets##ChainClass, &cElsSupported##ChainClass, pSetA); \ cElemsMax = (cElemsMax < cElsSupported##ChainClass) ? cElsSupported##ChainClass : cElemsMax; \ ATLENSURE(pSetTemp); \ for (ULONG iSet = nCurProp; iSet < nCurProp+cPropSets##ChainClass; iSet++) \ { \ pSet[iSet].pPropSet = pSetTemp[iSet-nCurProp].pPropSet; \ pSet[iSet].dwFlags = pSetTemp[iSet-nCurProp].dwFlags; \ pSet[iSet].pUPropInfo = pSetTemp[iSet-nCurProp].pUPropInfo; \ pSet[iSet].cUPropInfo = pSetTemp[iSet-nCurProp].cUPropInfo; \ pSet[iSet].bIsChained = true; \ } \ } \ nCurProp += cSets##ChainClass; #define END_PROPSET_MAP() \ if (pNumPropSets != NULL) \ { \ if (IsEqualGUID(*pguidSet, GUID_NULL)) \ { \ *pNumPropSets = nCurProp; \ return pSet; \ } \ else \ { \ *pNumPropSets = 1; \ UINT i = 0; \ for (; i < nCurProp && IsEqualGUID(*(pSet[i].pPropSet), *pguidSet); i++); \ return (i == nCurProp ) ? &pSet[0] : &pSet[i]; \ } \ } \ return (ATL::UPROPSET*)(DWORD_PTR)nCurProp; \ } // For DataSource flags IDBInitialize::m_dwStatus enum DATASOURCE_FLAGS { DSF_MASK_INIT = 0xFFFFF00F, // Mask for stuff lasting over init/uninit. DSF_PERSIST_DIRTY = 0x00000001, // Set if init string changes. DSF_INITIALIZED = 0x00000010, // Have we been initialized. }; #define DBID_USE_GUID_OR_PGUID(e) \ ((1<<(e)) & \ ( 1<> 5) // dw / 32 = dw / (sizeof(DWORD)*8) #define ModDword(dw) (dw & (32-1)) // dw % 32 #define DwordSizeofBits(nBits) (nBits/32+1) // Use in array declarations #define CLEARBITARRAY( rgdwFlags ) memset( rgdwFlags, 0, sizeof(rgdwFlags) ) template BOOL InRange( _In_ const T& val, _In_ const T& valMin, _In_ const T& valMax) { return ( valMin <= val && val <= valMax ); } // Implementation Class class CBitFieldOps { public: void SETBIT( _In_ DWORD rgdwFlags[], _In_ const DWORD dwBit) { rgdwFlags[DivDword(dwBit)] |= 1 << ModDword(dwBit); } void CLEARBIT( _In_ DWORD rgdwFlags[], _In_ const DWORD dwBit) { rgdwFlags[DivDword(dwBit)] &= ~( 1 << ModDword(dwBit) ); } DWORD TESTBIT( _In_ const DWORD rgdwFlags[], _In_ const DWORD dwBit) { //old//Note: Not {0,1}, but from {0...2^32-1}. // Note: Now returns {0,1}. return ( rgdwFlags[DivDword(dwBit)] & ( 1 << ModDword(dwBit) ) ) != 0; } }; // Implementation Class class CDBIDOps { public: HRESULT CompareDBIDs( _In_opt_ const DBID* pdbid1, _In_opt_ const DBID* pdbid2) { // Array of valid eKind matches, in addition to matching exactly. static const BYTE s_rgbKind[] = { DBKIND_PGUID_NAME, // DBKIND_GUID_NAME DBKIND_PGUID_PROPID, // DBKIND_GUID_PROPID DBKIND_NAME, // DBKIND_NAME DBKIND_GUID_NAME, // DBKIND_PGUID_NAME DBKIND_GUID_PROPID, // DBKIND_PGUID_PROPID DBKIND_PROPID, // DBKIND_PROPID DBKIND_GUID // DBKIND_GUID }; if( !pdbid1 || !pdbid2 ) return S_FALSE; // Assume a match, and discard early if we can. DBKIND tmp1 = 0; DBKIND tmp2 = (DBKIND)(_countof(s_rgbKind) - 1); if (!InRange(pdbid2->eKind, tmp1, tmp2)) { ATLTRACE(atlTraceDBProvider, 0, _T("Column ID out of Range\n")); return E_FAIL; } ATLASSUME(pdbid2->eKind < _countof(s_rgbKind)); if (pdbid1->eKind != pdbid2->eKind && pdbid1->eKind != s_rgbKind[pdbid2->eKind]) { return S_FALSE; } if (DBID_USE_GUID_OR_PGUID(pdbid1->eKind)) { if (!DBID_USE_GUID_OR_PGUID(pdbid2->eKind)) return S_FALSE; // Compare GUIDs. // Note that _GUID_ is equivalent to _PGUID_. if (!InlineIsEqualGUID( DBID_USE_PGUID(pdbid1->eKind) ? *(pdbid1->uGuid.pguid) : pdbid1->uGuid.guid, DBID_USE_PGUID(pdbid2->eKind) ? *(pdbid2->uGuid.pguid) : pdbid2->uGuid.guid )) return S_FALSE; } if (DBID_USE_NAME(pdbid1->eKind)) { if (!DBID_USE_NAME(pdbid2->eKind)) return S_FALSE; // Compare names. // Need to check if 1 is null and the other is not. if ((pdbid1->uName.pwszName == NULL) != (pdbid2->uName.pwszName == NULL)) return S_FALSE; // Since the above check does not rule out both being null, which is // a valid comparison, and wcscmp will GPF if they were, we need // to check for valid pointers if( pdbid1->uName.pwszName && pdbid2->uName.pwszName ) { // Assume null-terminated. // Assume LCID match is OK (note diff with lstrcmp(), CompareString().) if (wcscmp(pdbid1->uName.pwszName, pdbid2->uName.pwszName) != 0) return S_FALSE; } } if (DBID_USE_PROPID(pdbid1->eKind)) { if (!DBID_USE_PROPID(pdbid2->eKind)) return S_FALSE; // Compare PROPID. if (pdbid1->uName.ulPropid != pdbid2->uName.ulPropid) return S_FALSE; } // No reason to discard, so must have matched each field successfully. return S_OK; } static HRESULT IsValidDBID(_In_ const DBID* pdbid1) { ATLASSERT( pdbid1 ); if( pdbid1 && ((pdbid1->eKind == DBKIND_GUID_NAME) || (pdbid1->eKind == DBKIND_GUID_PROPID) || (pdbid1->eKind == DBKIND_NAME) || (pdbid1->eKind == DBKIND_PGUID_NAME) || (pdbid1->eKind == DBKIND_PGUID_PROPID) || (pdbid1->eKind == DBKIND_PROPID) || (pdbid1->eKind == DBKIND_GUID)) ) return S_OK; else return S_FALSE; } HRESULT CopyDBIDs( _Out_ DBID* pdbidDest, _In_ const DBID* pdbidSrc) { ULONG cwchBuffer; ATLASSERT( pdbidDest && pdbidSrc ); if( !pdbidDest || !pdbidSrc ) return S_FALSE; // Save eKind pdbidDest->eKind = pdbidSrc->eKind; switch( pdbidSrc->eKind ) { case DBKIND_GUID_NAME: pdbidDest->uGuid.guid = pdbidSrc->uGuid.guid; cwchBuffer = ocslen(pdbidSrc->uName.pwszName); cwchBuffer++; pdbidDest->uName.pwszName = (PWSTR)::ATL::AtlCoTaskMemCAlloc(cwchBuffer, static_cast(sizeof(WCHAR))); if( pdbidDest->uName.pwszName ) { Checked::memcpy_s(pdbidDest->uName.pwszName, cwchBuffer * sizeof(WCHAR), pdbidSrc->uName.pwszName, cwchBuffer*sizeof(WCHAR)); } else { return E_OUTOFMEMORY; } break; case DBKIND_GUID_PROPID: pdbidDest->uGuid.guid = pdbidSrc->uGuid.guid; pdbidDest->uName.ulPropid = pdbidSrc->uName.ulPropid; break; case DBKIND_NAME: cwchBuffer = ocslen(pdbidSrc->uName.pwszName); cwchBuffer++; pdbidDest->uName.pwszName = (PWSTR)::ATL::AtlCoTaskMemCAlloc(cwchBuffer, static_cast(sizeof(WCHAR))); if( pdbidDest->uName.pwszName ) { Checked::memcpy_s(pdbidDest->uName.pwszName, cwchBuffer*sizeof(WCHAR), pdbidSrc->uName.pwszName, cwchBuffer*sizeof(WCHAR)); } else { return E_OUTOFMEMORY; } break; case DBKIND_PGUID_NAME: pdbidDest->uGuid.pguid = (GUID*)CoTaskMemAlloc(sizeof(GUID)); if( pdbidDest->uGuid.pguid ) { *(pdbidDest->uGuid.pguid) = *(pdbidSrc->uGuid.pguid); cwchBuffer = ocslen(pdbidSrc->uName.pwszName); cwchBuffer++; pdbidDest->uName.pwszName = (PWSTR)::ATL::AtlCoTaskMemCAlloc(cwchBuffer, static_cast(sizeof(WCHAR))); if( pdbidDest->uName.pwszName ) { Checked::memcpy_s(pdbidDest->uName.pwszName, cwchBuffer*sizeof(WCHAR), pdbidSrc->uName.pwszName, cwchBuffer*sizeof(WCHAR)); break; } else { CoTaskMemFree(pdbidDest->uGuid.pguid); pdbidDest->uGuid.pguid = NULL; } } return E_OUTOFMEMORY; case DBKIND_PGUID_PROPID: pdbidDest->uGuid.pguid = (GUID*)CoTaskMemAlloc(sizeof(GUID)); if( pdbidDest->uGuid.pguid ) *(pdbidDest->uGuid.pguid) = *(pdbidSrc->uGuid.pguid); else return E_OUTOFMEMORY; pdbidDest->uName.ulPropid = pdbidSrc->uName.ulPropid; break; case DBKIND_PROPID: pdbidDest->uName.ulPropid = pdbidSrc->uName.ulPropid; break; case DBKIND_GUID: pdbidDest->uGuid.guid = pdbidSrc->uGuid.guid; break; default: ATLASSERT(L"Unhandled dbid1.ekind"); return S_FALSE; } return S_OK; } static GUID* GetDBIDpGuid(_In_ DBID& dbid) { GUID* pGuid; switch (dbid.eKind) { case DBKIND_PGUID_NAME: case DBKIND_PGUID_PROPID: pGuid = dbid.uGuid.pguid; break; case DBKIND_GUID_NAME: case DBKIND_GUID_PROPID: case DBKIND_GUID: pGuid = &(dbid.uGuid.guid); break; default: pGuid = NULL; } return pGuid; } static ULONG GetPropIDFromDBID(_In_ DBID& dbid) { switch (dbid.eKind) { case DBKIND_GUID_PROPID: case DBKIND_PGUID_PROPID: case DBKIND_PROPID: return dbid.uName.ulPropid; default: return 0; } } void FreeDBIDs(_In_ DBID* pdbidSrc) { switch( pdbidSrc->eKind ) { case DBKIND_GUID_NAME: CoTaskMemFree(pdbidSrc->uName.pwszName); break; case DBKIND_NAME: CoTaskMemFree(pdbidSrc->uName.pwszName); break; case DBKIND_PGUID_NAME: CoTaskMemFree(pdbidSrc->uGuid.pguid); CoTaskMemFree(pdbidSrc->uName.pwszName); break; case DBKIND_PGUID_PROPID: CoTaskMemFree(pdbidSrc->uGuid.pguid); break; case DBKIND_GUID_PROPID: case DBKIND_PROPID: case DBKIND_GUID: break; default: ATLASSERT(L"Unhandled dbid1.ekind"); break; } } }; class CConvertHelper { public: CConvertHelper() {} HRESULT FinalConstruct() { HRESULT hr = ::CoCreateInstance(CLSID_OLEDB_CONVERSIONLIBRARY, NULL, CLSCTX_INPROC_SERVER, __uuidof(IDataConvert), (void**)&m_spConvert); if (FAILED(hr)) return hr; // Check to see if the data conversion routine is 2.0 capable, if so. Initialize // the conversion routine to be 2.0. DCINFO rgInfo[] = {{DCINFOTYPE_VERSION, {VT_UI4, 0, 0, 0, 0x0}}}; CComPtr spIDCInfo; hr = m_spConvert->QueryInterface(&spIDCInfo); if (hr == S_OK) { V_UI4(&rgInfo->vData) = 0x200; // OLEDB Version 02.00 spIDCInfo->SetInfo(1, rgInfo); } return hr; } CComPtr m_spConvert; }; // IDBCreateSessionImpl template class ATL_NO_VTABLE IDBCreateSessionImpl : public IDBCreateSession { public: ATLPREFAST_SUPPRESS(6387) STDMETHOD(CreateSession)( _In_opt_ IUnknown *pUnkOuter, _In_ REFIID riid, _Deref_out_ IUnknown **ppDBSession) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBCreateSessionImpl::CreateSession\n")); if (ppDBSession == NULL) return E_INVALIDARG; *ppDBSession = NULL; T* pT = (T*)this; if (!(pT->m_dwStatus & DSF_INITIALIZED)) { ATLTRACE(atlTraceDBProvider, 0, _T("IDBCreateSessionImpl::CreateSession : Error not initialized\n")); *ppDBSession = NULL; return E_UNEXPECTED; } CComPolyObject *pSession; // You can't QI for an interface other than IUnknown when aggregating // and creating the object. You might ask for your own interface, // which would be bad. Note, we return DB_E_NOAGGREGATION instead of // CLASS_E_NOAGGREGATION due to OLE DB constraints. if (pUnkOuter != NULL && !InlineIsEqualUnknown(riid)) return DB_E_NOAGGREGATION; HRESULT hr = CComPolyObject::CreateInstance(pUnkOuter, &pSession); if (SUCCEEDED(hr)) { ATLASSUME(pSession != NULL); CComPtr spCreator; hr = pSession->QueryInterface(__uuidof(IObjectWithSite), (void**)&spCreator); if (SUCCEEDED(hr)) { CComPtr spOuterUnk; hr = pT->QueryInterface(__uuidof(IUnknown), (void**)&spOuterUnk); if (SUCCEEDED(hr)) { hr = spCreator->SetSite(spOuterUnk); if (SUCCEEDED(hr)) { hr = pSession->QueryInterface(riid, (void**)ppDBSession); } } } else { delete pSession; } } return hr; } ATLPREFAST_UNSUPPRESS() }; // IDBInitializeImpl template class ATL_NO_VTABLE IDBInitializeImpl : public IDBInitialize { public: IDBInitializeImpl() { m_dwStatus = 0; m_pCUtlPropInfo = NULL; m_cSessionsOpen = 0; } virtual ~IDBInitializeImpl() { delete m_pCUtlPropInfo; } STDMETHOD(Uninitialize)(void) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBInitializeImpl::Uninitialize\n")); T* pT = (T*)this; T::ObjectLock lock(pT); if (pT->m_cSessionsOpen != 0) { ATLTRACE(atlTraceDBProvider, 0, _T("Uninitialized called with Open Sessions\n")); return DB_E_OBJECTOPEN; } delete m_pCUtlPropInfo; m_pCUtlPropInfo = NULL; pT->m_dwStatus |= DSF_PERSIST_DIRTY; pT->m_dwStatus &= DSF_MASK_INIT; // Clear all non-init flags. return S_OK; } DWORD m_dwStatus; CUtlPropInfo* m_pCUtlPropInfo; LONG m_cSessionsOpen; STDMETHOD(Initialize)(void) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBInitializeImpl::Initialize\n")); T *pT = (T*)(this); T::ObjectLock lock(pT); HRESULT hr; if (pT->m_dwStatus & DSF_INITIALIZED) { ATLTRACE(atlTraceDBProvider, 0, _T("IDBInitializeImpl::Initialize Error : Already Initialized\n")); return DB_E_ALREADYINITIALIZED; } delete m_pCUtlPropInfo; m_pCUtlPropInfo = NULL; ATLTRY(m_pCUtlPropInfo = new CUtlPropInfo()) if (m_pCUtlPropInfo == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("IDBInitializeImpl::Initialize Error : OOM\n")); return E_OUTOFMEMORY; } hr = m_pCUtlPropInfo->FInit(); if (hr == S_OK) { pT->m_dwStatus |= DSF_INITIALIZED; } else { delete m_pCUtlPropInfo; m_pCUtlPropInfo = NULL; } return hr; } }; // Implementation Class class CPropColID : public PROPCOLID, public CDBIDOps { public: CPropColID() { VariantInit(&vValue); } ~CPropColID() { FreeDBIDs(&dbidProperty); VariantClear(&vValue); } bool operator==(_In_ const CPropColID& colId) { return (CompareDBIDs(&dbidProperty, &(colId.dbidProperty)) == S_OK) ? true : false; } }; class CColumnIds : public CDBIDOps, public CAtlArray { public: PPROPCOLID AddNode() { CPropColID colID; _ATLTRY { Add(colID); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ) return NULL; } return &(GetAt(GetCount()-1)); } HRESULT RemoveColumnId(_In_ const DBID* pdbidProp) { for (size_t i = 0; i < GetCount(); i++) { if (CompareDBIDs(pdbidProp, &(GetAt(i).dbidProperty)) == S_OK) { if( i < 0 || i >= GetCount() ) return E_FAIL; RemoveAt(i); return S_OK; } } return E_FAIL; } HRESULT AddColumnId(_In_ DBPROP* pProp) { CPropColID colID; HRESULT hr = CopyDBIDs(&(colID.dbidProperty),&(pProp->colid)); if(FAILED(hr)) return hr; colID.dwOption = pProp->dwOptions; hr = VariantCopy(&(colID.vValue),&(pProp->vValue)); if(FAILED(hr)) return hr; //return (Add(colID)) ? S_OK : E_OUTOFMEMORY; _ATLTRY { Add(colID); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } return S_OK; } HRESULT AddColumnId(_In_ PPROPCOLID pPropNode) { CPropColID colID; HRESULT hr = CopyDBIDs(&(colID.dbidProperty),&(pPropNode->dbidProperty)); if(FAILED(hr)) return hr; colID.dwOption = pPropNode->dwOption; hr = VariantCopy(&(colID.vValue),&(pPropNode->vValue)); if(FAILED(hr)) return hr; //return (Add(colID)) ? S_OK : E_OUTOFMEMORY; _ATLTRY { Add(colID); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } return S_OK; } ULONG GetCountOfPropColids() { return (ULONG)GetCount(); } PPROPCOLID FindColumnId(_In_ const DBID* pdbidProp) { for (size_t i = 0; i < GetCount(); i++) { if (CompareDBIDs(pdbidProp, &(GetAt(i).dbidProperty)) == S_OK) return &(GetAt(i)); } return NULL; } HRESULT GetValue( _In_ size_t iColId, _Out_ DWORD* pdwOptions, _Out_ DBID* pColid, _Out_ VARIANT* pvValue) { ATLENSURE_RETURN(pdwOptions && pColid && pvValue); ATLASSERT(iColId >= 0 && iColId < GetCount()); CPropColID& colId = GetAt(iColId); *pdwOptions = colId.dwOption; HRESULT hr = CopyDBIDs( pColid, &(colId.dbidProperty) ); if(FAILED(hr) || hr == S_FALSE) { return hr; } if(FAILED(hr = VariantCopy(pvValue, &(colId.vValue)))) return hr; return S_OK; } }; const ULONG cchDescBuffSize = 256; const DWORD DBINTERNFLAGS_CHANGED = 0x00000001; // Rules for GetPropertiesArgChk const DWORD ARGCHK_PROPERTIESINERROR = 0x00000001; // Implementation Class template class CUtlPropInfo : public CBitFieldOps, public CDBIDOps { public: enum EnumGetPropInfo { GETPROPINFO_ALLPROPIDS = 0x0001, GETPROPINFO_NOTSUPPORTED = 0x0002, GETPROPINFO_ERRORSOCCURRED = 0x0004, GETPROPINFO_VALIDPROP = 0x0008 }; CUtlPropInfo() { m_cUPropSet = 0; m_pUPropSet = NULL; m_cPropSetDex = 0; m_cElemPerSupported = 0; } ~CUtlPropInfo() { CoTaskMemFree(m_pUPropSet); } //Determine the number of description buffers needed ULONG CalcDescripBuffers( _In_ ULONG cPropInfoSet, _In_count_(cPropInfoSet) DBPROPINFOSET* pPropInfoSet) { ULONG cBuffers = 0; ATLASSUME(m_pUPropSet); ATLENSURE(cPropInfoSet && pPropInfoSet); for(ULONG ulSet=0; ulSet lock(m_oCriticalSection); HRESULT hr = InitAvailUPropSets(&m_cUPropSet, &m_pUPropSet, &m_cElemPerSupported, pguidSet); if (FAILED(hr)) return hr; ATLASSERT((m_cUPropSet != 0) && (m_cElemPerSupported != 0)); if(!m_cUPropSet || !m_cElemPerSupported) return E_FAIL; ATLTRY(m_rgdwSupported.Allocate(::ATL::AtlMultiplyThrow(m_cUPropSet, m_cElemPerSupported))); if(m_rgdwSupported == NULL) { m_cUPropSet=0; m_cElemPerSupported=0; return E_OUTOFMEMORY; } if(FAILED(hr = InitUPropSetsSupported())) { m_cUPropSet=0; m_cElemPerSupported=0; m_rgdwSupported.Free(); return hr; } if(m_cUPropSet) { ATLTRY(m_rgiPropSetDex.Allocate(m_cUPropSet)) if(m_rgiPropSetDex == NULL) { m_cUPropSet=0; m_cElemPerSupported=0; m_rgdwSupported.Free(); return E_OUTOFMEMORY; } } return S_OK; } HRESULT GetPropertyInfo( _In_ ULONG cPropertySets, _In_count_(cPropertySets) const DBPROPIDSET rgPropertySets[], _Out_ ULONG* pcPropertyInfoSets, _Out_opt_ _Deref_post_cap_(*pcPropertyInfoSets) DBPROPINFOSET** prgPropertyInfoSets, _Deref_opt_out_z_ WCHAR** ppDescBuffer, _In_ bool bInitialized = true, _In_opt_ const GUID* pGuid = NULL) { CComCritSecLock lock(m_oCriticalSection); HRESULT hr = S_OK; ULONG ul, ulSet, ulNext, ulEnd; ULONG ulOutIndex; ULONG cSets; ULONG cPropInfos; //ULONG ulIndex = 0; ULONG cBuffers = 0; DWORD dwStatus = 0; DBPROPINFO* pPropInfo = NULL; DBPROPINFO* pCurPropInfo = NULL; WCHAR* pDescBuffer = NULL; WCHAR* pDescBufferEnd = NULL; DBPROPINFOSET* pPropInfoSet = NULL; UPROPINFO* pUPropInfo = NULL; WCHAR wszBuff[256]; int cch; CAtlArray rgInitPropsetIndexes; // If the consumer does not restrict the property sets // by specify an array of property sets and a cPropertySets // greater than 0, then we need to make sure we // have some to return if(cPropertySets == 0) { // Determine the number of property sets supported // In this case, it usually the enumerator or data source asking for // DBPROPSET_DBINIT information. if (pGuid != NULL) { // Need to determine if there are any UPROPSET_USERINIT sets here // they should be added to DBINIT. ULONG ulUserInitSets = 0; for (ULONG l=0; l(sizeof(DBPROPINFOSET))); if(pPropInfoSet == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("Could not allocate DBPROPSET array for GetProperties\n")); hr = E_OUTOFMEMORY; goto EXIT; } memset(pPropInfoSet, 0, cSets * sizeof(DBPROPINFOSET)); ulOutIndex = 0; ULONG ulTempPropsetIndex = 0; ulEnd = cPropertySets == 0 ? cSets : cPropertySets; // Fill in the output array for(ulSet=0; ulSet(sizeof(DBPROPINFO))); if( pPropInfo ) { // Initialize Buffer memset(pPropInfo, 0, cPropInfos * sizeof(DBPROPINFO)); for(ULONG ulProp=0; ulProppwszDescription = pDescBuffer; // Load the string into temp buffer cch = LoadDescription(pUPropInfo[ulProp].ulIDS, wszBuff, (sizeof(wszBuff)/sizeof(*wszBuff))); if( cch ) { // Adjust for '\0' cch++; // Transfer to official buffer if room if (pDescBuffer > pDescBufferEnd) { return E_FAIL; } Checked::memcpy_s(pDescBuffer, (pDescBufferEnd-pDescBuffer)*sizeof(WCHAR), wszBuff, cch * sizeof(WCHAR)); pDescBuffer += cch; } else { if(pDescBuffer > pDescBufferEnd) { return E_FAIL; } Checked::wcscpy_s(pDescBuffer, pDescBufferEnd-pDescBuffer, L"UNKNOWN"); pDescBuffer += (wcslen(L"UNKNOWN") + 1); _ATLDUMPPROPERTY(pCurPropInfo->dwPropertyID, ATLDB_NO_STRING); } } pCurPropInfo->dwPropertyID = pUPropInfo[ulProp].dwPropId; // Strip out any user defined flags that may be around. Note, // this isn't a full-proof thing because properties change. It // won't work in OLE DB 2.5 if someone does a property like 0x40000 DWORD dwFlags = pUPropInfo[ulProp].dwFlags & 0xfffff; pCurPropInfo->dwFlags = dwFlags; pCurPropInfo->vtType = pUPropInfo[ulProp].VarType; pCurPropInfo->vValues.vt = VT_EMPTY; dwStatus |= GETPROPINFO_VALIDPROP; // Increment to next available buffer ulNext++; _ATLDUMPPROPERTY(pCurPropInfo->dwPropertyID, pCurPropInfo->dwFlags); } } else { ATLASSUME( m_cPropSetDex == 1 ); ULONG cIterations = ((cPropInfos>cBuffers) && (ppDescBuffer)) ? cBuffers : cPropInfos; for( ULONG ulProp = 0; ulProp < cIterations; ulProp++, ulNext++ ) { pCurPropInfo = &(pPropInfo[ulNext]); // Process Properties based on Restriction array. pCurPropInfo->dwPropertyID = rgPropertySets[ulSet].rgPropertyIDs[ulProp]; if( GetUPropInfoPtr(m_rgiPropSetDex[ul], pCurPropInfo->dwPropertyID, &pUPropInfo) == S_OK ) { // If the ppDescBuffer pointer was not NULL, then // we need supply description of the properties if( ppDescBuffer ) { // Set Buffer pointer pCurPropInfo->pwszDescription = pDescBuffer; // Load the string into temp buffer cch = LoadDescription(pUPropInfo->ulIDS, wszBuff, (sizeof(wszBuff)/sizeof(*wszBuff))); if( cch ) { // Adjust for '\0' cch++; // Transfer to official buffer if room if(pDescBuffer > pDescBufferEnd) return E_FAIL; Checked::memcpy_s(pDescBuffer, (pDescBufferEnd-pDescBuffer)*sizeof(WCHAR), wszBuff, cch * sizeof(WCHAR)); pDescBuffer += cch; } else { if(pDescBuffer > pDescBufferEnd) { return E_FAIL; } Checked::wcscpy_s(pDescBuffer, pDescBufferEnd-pDescBuffer, L"UNKNOWN"); pDescBuffer += (wcslen(L"UNKNOWN") + 1); _ATLDUMPPROPERTY(pCurPropInfo->dwPropertyID, ATLDB_NO_STRING); } } pCurPropInfo->dwPropertyID = pUPropInfo->dwPropId; // Strip out any user defined flags that may be around. Note, // this isn't a full-proof thing because properties change. It // won't work in OLE DB 2.5 if someone does a property like 0x40000 DWORD dwFlags = pUPropInfo->dwFlags & 0xfffff; pCurPropInfo->dwFlags = dwFlags; pCurPropInfo->vtType = pUPropInfo->VarType; dwStatus |= GETPROPINFO_VALIDPROP; } else { // Not Supported pCurPropInfo->dwFlags = DBPROPFLAGS_NOTSUPPORTED; dwStatus |= GETPROPINFO_ERRORSOCCURRED; } _ATLDUMPPROPERTY(pCurPropInfo->dwPropertyID, pCurPropInfo->dwFlags); } } } } else { hr = E_OUTOFMEMORY; goto EXIT; } NEXT_SET: pPropInfoSet[ulSet].cPropertyInfos = ulNext; pPropInfoSet[ulSet].rgPropertyInfos = pPropInfo; } // Success, set return values *pcPropertyInfoSets = cSets; *prgPropertyInfoSets = pPropInfoSet; // At least one propid was marked as not S_OK if( dwStatus & GETPROPINFO_ERRORSOCCURRED ) { // If at least 1 property was set if( dwStatus & GETPROPINFO_VALIDPROP ) return DB_S_ERRORSOCCURRED; else { // Do not free any of the rgPropertyInfoSets, but // do free the ppDescBuffer if( pDescBuffer ) { ATLASSERT( ppDescBuffer ); CoTaskMemFree(pDescBuffer); *ppDescBuffer = NULL; } return DB_E_ERRORSOCCURRED; } } return S_OK; EXIT: // Check if failure and clean up any allocated memory if( FAILED(hr) && (hr != DB_E_ERRORSOCCURRED) ) { // Free Description Buffer if( pDescBuffer ) { ATLASSERT( ppDescBuffer ); CoTaskMemFree(pDescBuffer); *ppDescBuffer = NULL; } if( pPropInfoSet ) { // Loop through Property Sets for(ulSet=0; ulSet m_rgiPropSetDex;//array of UPropSet Index values ULONG m_cElemPerSupported; //number of DWORDS per UPropSet to indicate supported UPropIds CAutoVectorPtr m_rgdwSupported;//array of DWORDs indicating supported UPropIds enum EnumUPropSetFlags { UPROPSET_HIDDEN = 0x1, UPROPSET_PASSTHROUGH = 0x2, UPROPSET_USERINIT = 0x4 }; HRESULT InitAvailUPropSets( _Out_ ULONG* pcUPropSet, _Out_ _Deref_post_opt_cap_(*pcUPropSet) UPROPSET** ppUPropSet, _Out_ ULONG* pcElemPerSupported, _Out_opt_ GUID* pguid) { ATLENSURE_RETURN(pcUPropSet && ppUPropSet); CoTaskMemFree(*ppUPropSet); *ppUPropSet = NULL; int cSets = (int)(ULONG_PTR)T::_GetPropSet(NULL, pcElemPerSupported); UPROPSET* pSet = (UPROPSET*)::ATL::AtlCoTaskMemCAlloc(static_cast(sizeof(UPROPSET)), cSets); if (pSet == NULL) { *pcUPropSet=0; *ppUPropSet=NULL; *pcElemPerSupported=0; return E_OUTOFMEMORY; } *ppUPropSet = T::_GetPropSet(pcUPropSet, pcElemPerSupported, pSet, pguid); return S_OK; } OUT_OF_LINE HRESULT InitUPropSetsSupported() { ULONG cPropSet = 0, cElemsPerSupported = 0; int cSets = (int)(ULONG_PTR)T::_GetPropSet(NULL, &cElemsPerSupported); UPROPSET* pSet = (UPROPSET*)::ATL::AtlCoTaskMemCAlloc(static_cast(sizeof(UPROPSET)), cSets); if (pSet == NULL) return E_OUTOFMEMORY; pSet = T::_GetPropSet(&cPropSet, &cElemsPerSupported, pSet); memset(m_rgdwSupported, 0xFFFF, cPropSet * cElemsPerSupported * sizeof(DWORD)); CoTaskMemFree(pSet); return S_OK; } //Load a localized description int LoadDescription( _In_ ULONG ids, _Out_z_cap_post_count_(cchBuff, return + 1) PWSTR pwszBuff, _In_ ULONG cchBuff) { USES_CONVERSION_EX; CTempBuffer tmpBuffer; TCHAR* pszBuf = tmpBuffer.Allocate(cchBuff); if (pszBuf == NULL) return 0; int nTemp = LoadString(_AtlBaseModule.GetResourceInstance(), ids, pszBuf, cchBuff); if (nTemp != 0) { Checked::wcscpy_s(pwszBuff, cchBuff, SAL_Assume_notnull_for_opt_z_(T2W_EX_DEF(pszBuf))); } return nTemp; } }; class ATL_NO_VTABLE CUtlPropsBase : public CBitFieldOps, public CDBIDOps { public: virtual ~CUtlPropsBase() { } CComAutoCriticalSection m_oCriticalSection; // critical section to synchronize access to the class ULONG m_cUPropSet; //count of UPropSet items UPROPSET* m_pUPropSet; //Pointer to UPropset items CAutoVectorPtr< UPROP > m_pUProp; ULONG m_cUPropSetHidden; //Count of Hidden items DWORD m_dwFlags; //Configuration flags ULONG m_cPropSetDex; //count of UPropSet Indexes CAutoVectorPtr< ULONG > m_rgiPropSetDex; //pointer to Array of UPropSet Index values ULONG m_cElemPerSupported;//number of DWORDS per UPropSet to indicate supported UPropIds CAutoVectorPtr< DWORD > m_rgdwSupported; //pointer to array of DWORDs indicating supported UPropIds CAutoVectorPtr< DWORD > m_rgdwPropsInError;//pointer to array of DWORDs indicating if property is in error enum EnumUPropSetFlags { UPROPSET_HIDDEN = 0x1, UPROPSET_PASSTHROUGH = 0x2, UPROPSET_USERINIT = 0x4 }; enum EnumGetProp { GETPROP_ALLPROPIDS = 0x0001, GETPROP_NOTSUPPORTED = 0x0002, GETPROP_ERRORSOCCURRED = 0x0004, GETPROP_VALIDPROP = 0x0008, GETPROP_PROPSINERROR = 0x0010 }; enum EnumSetProp { SETPROP_BADOPTION = 0x0001, SETPROP_NOTSUPPORTED = 0x0002, SETPROP_VALIDPROP = 0x0004, SETPROP_ERRORS = 0x0008, SETPROP_COLUMN_LEVEL = 0x0010, SETPROP_WAS_REQUIRED = 0x0020 }; HRESULT SetPassThrough(_In_ const DBPROPSET* pPropSet) { ATLENSURE_RETURN(pPropSet); DBPROP* pProp = pPropSet->rgProperties; //Default implementation just sets all properties as NOTSUPPORTED for( ULONG ul=0; ulcProperties; ul++, pProp++ ) pProp->dwStatus = DBPROPSTATUS_NOTSUPPORTED; return DB_E_ERRORSOCCURRED; } HRESULT GetIndexofPropIdinPropSet( _In_ ULONG iCurSet, _In_ DBPROPID dwPropertyId, _Out_ ULONG* piCurPropId) { ATLENSURE_RETURN(piCurPropId); UPROPINFO* pUPropInfo = m_pUPropSet[iCurSet].pUPropInfo; for(ULONG ul=0; ulvValue; if (var.vt == VT_BOOL) { if (var.boolVal != ATL_VARIANT_TRUE && var.boolVal != ATL_VARIANT_FALSE) return S_FALSE; } return S_OK; } virtual HRESULT OnInterfaceRequested(_In_ REFIID riid) { // This function exists as part of the change in the OLE DB spec. If // a consumer opens an object and requests an optional interface, the // provider should automatically set the property representating that // interface to true. CDBPropSet propset(DBPROPSET_ROWSET); const GUID* ppGuid[1]; ppGuid[0] = &DBPROPSET_ROWSET; if (InlineIsEqualGUID(riid, __uuidof(IRowsetChange))) { if(!propset.AddProperty(DBPROP_IRowsetChange, true)) { return E_FAIL; } } else if (InlineIsEqualGUID(riid, __uuidof(IRowsetUpdate))) { if(!propset.AddProperty(DBPROP_IRowsetUpdate, true)) { return E_FAIL; } } else if (InlineIsEqualGUID(riid, __uuidof(IRowsetLocate))) { if(!propset.AddProperty(DBPROP_IRowsetLocate, true)) { return E_FAIL; } } else if (InlineIsEqualGUID(riid, __uuidof(IConnectionPointContainer))) { if(!propset.AddProperty(DBPROP_IConnectionPointContainer, true)) { return E_FAIL; } } else if (InlineIsEqualGUID(riid, __uuidof(IRowsetScroll))) { if(!propset.AddProperty(DBPROP_IRowsetScroll, true)) { return E_FAIL; } } if (propset.cProperties > 0) return SetProperties(0, 1, &propset, 1, ppGuid); return S_OK; } virtual HRESULT OnPropertyChanged( _In_ ULONG /*iCurSet*/, _In_ DBPROP* /*pDBProp*/) = 0; ATLPREFAST_SUPPRESS(6014) /* prefast noise VSW 498981 */ HRESULT SetProperty( _In_ ULONG iCurSet, _In_ ULONG iCurProp, _Inout_ DBPROP* pDBProp) { HRESULT hr = S_OK; UPROP* pUProp; UPROPVAL* pUPropVal; UPROPINFO* pUPropInfo; ULONG iUProp; ATLENSURE_RETURN( pDBProp ); // Set pointer to correct set pUProp = &(m_pUProp[iCurSet]); ATLENSURE_RETURN( pUProp ); pUPropInfo = &(m_pUPropSet[iCurSet].pUPropInfo[iCurProp]); ATLENSURE_RETURN( pUPropInfo ); // Determine the index within m_pUProp for(iUProp=0; iUPropcPropIds; iUProp++) { if( (pUProp->rgpUPropInfo[iUProp])->dwPropId == pDBProp->dwPropertyID ) break; } if( iUProp >= pUProp->cPropIds ) { ATLASSERT( !"Should have found index of property to set" ); hr = E_FAIL; pDBProp->dwStatus = DBPROPSTATUS_NOTSUPPORTED; goto EXIT; } //Get the UPROPVAL node pointer within that propset. pUPropVal = &(pUProp->pUPropVal[iUProp]); ATLENSURE_RETURN( pUPropVal ); // Handle VT_EMPTY, which indicates to the provider to // reset this property to the providers default if( pDBProp->vValue.vt == VT_EMPTY ) { if( pUPropInfo->dwFlags & DBPROPFLAGS_COLUMNOK ) { // Remove any nodes, because the default applies to // all columns delete pUPropVal->pCColumnIds; pUPropVal->pCColumnIds = NULL; } // Should clear here, since previous values may already // have been cached and need to be replaced. VariantClear(&(pUPropVal->vValue)); pUPropVal->dwFlags &= ~DBINTERNFLAGS_CHANGED; hr = GetDefaultValue(iCurSet, pDBProp->dwPropertyID, &(pUPropVal->dwOption), &(pUPropVal->vValue)); goto EXIT; } // Column Level if( pUPropInfo->dwFlags & DBPROPFLAGS_COLUMNOK ) { // Check to see if it applies to all if( (CompareDBIDs(&(pDBProp->colid), &DB_NULLID) == S_OK) ) { // Remove the Columns Storage object delete pUPropVal->pCColumnIds; pUPropVal->pCColumnIds = NULL; pUPropVal->dwOption = pDBProp->dwOptions; if( FAILED(hr = VariantCopy(&(pUPropVal->vValue), &(pDBProp->vValue))) ) goto EXIT; pUPropVal->dwFlags |= DBINTERNFLAGS_CHANGED; } else // Does not apply to all columns { if( pUPropVal->pCColumnIds == NULL ) { ATLTRY(pUPropVal->pCColumnIds = new CColumnIds) } if( pUPropVal->pCColumnIds ) { if( FAILED(hr = (pUPropVal->pCColumnIds)->AddColumnId(pDBProp)) ) goto EXIT; pUPropVal->dwFlags |= DBINTERNFLAGS_CHANGED; } else { hr = E_OUTOFMEMORY; goto EXIT; } } } else { // Set for non-column level properties pUPropVal->dwOption = pDBProp->dwOptions; // Our provider has no limit on the maximum number of rows // that can have pending changes, therefore the value of the // DBPROP_MAXPENDINGROWS property will always be zero (default), // regardless of what the user attempts to set it to. // In the code below, we modify the property value only if // this is not the DBPROP_MAXPENDINGROWS property. if( pDBProp->dwPropertyID != DBPROP_MAXPENDINGROWS ) { if( FAILED(hr = VariantCopy(&(pUPropVal->vValue), &(pDBProp->vValue))) ) goto EXIT; } if( FAILED(hr = OnPropertyChanged(iCurSet, pDBProp))) goto EXIT; pUPropVal->dwFlags |= DBINTERNFLAGS_CHANGED; } EXIT: if( hr == S_OK ) pDBProp->dwStatus = DBPROPSTATUS_OK; return hr; } ATLPREFAST_UNSUPPRESS() HRESULT SetProperties( _In_ const DWORD /*dwStatus*/, _In_ const ULONG cPropertySets, _In_count_(cPropertySets) const DBPROPSET rgPropertySets[], _In_ const ULONG cSelectProps = 1, _In_count_(cSelectProps) const GUID* const ppGuid[] = NULL, _In_ bool bIsCreating = false) { DWORD dwState = 0; ULONG ulCurSet, ulCurProp, ulProp; DBPROP* rgDBProp; UPROPINFO* pUPropInfo; CComVariant vDefaultValue; DWORD dwOption; CComCritSecLock lock(m_oCriticalSection); // ppGuid specifies the property sets that the consumer can set based // on the interface that called this function. ATLENSURE_RETURN(ppGuid != NULL); if ((cPropertySets != 0) && (rgPropertySets == NULL)) return E_INVALIDARG; // Process property sets for(ULONG ulSet=0; ulSetdwFlags & DBPROPFLAGS_WRITE) == 0 ) { rgDBProp[ulProp].dwStatus = DBPROPSTATUS_OK; vDefaultValue.Clear(); // VT_EMPTY against a read only property should be a no-op since // the VT_EMPTY means the default. if( V_VT(&rgDBProp[ulProp].vValue) == VT_EMPTY ) { dwState |= SETPROP_VALIDPROP; continue; } if( SUCCEEDED(GetDefaultValue(ulCurSet, rgDBProp[ulProp].dwPropertyID, &dwOption, &(vDefaultValue))) ) { if( V_VT(&rgDBProp[ulProp].vValue) == V_VT(&vDefaultValue) ) { switch( V_VT(&vDefaultValue) ) { case VT_BOOL: if( V_BOOL(&rgDBProp[ulProp].vValue) == V_BOOL(&vDefaultValue) ) { dwState |= SETPROP_VALIDPROP; continue; } break; case VT_I2: if( V_I2(&rgDBProp[ulProp].vValue) == V_I2(&vDefaultValue) ) { dwState |= SETPROP_VALIDPROP; continue; } break; case VT_I4: if( V_I4(&rgDBProp[ulProp].vValue) == V_I4(&vDefaultValue) ) { dwState |= SETPROP_VALIDPROP; continue; } break; case VT_BSTR: if( wcscmp(V_BSTR(&rgDBProp[ulProp].vValue), V_BSTR(&vDefaultValue)) == 0 ) { dwState |= SETPROP_VALIDPROP; continue; } break; } } } dwState |= SETPROP_ERRORS; dwState |= (rgDBProp[ulProp].dwOptions == DBPROPOPTIONS_REQUIRED) ? SETPROP_WAS_REQUIRED : 0; rgDBProp[ulProp].dwStatus = (rgDBProp[ulProp].dwOptions == DBPROPOPTIONS_OPTIONAL) ? DBPROPSTATUS_NOTSET : DBPROPSTATUS_NOTSETTABLE; _ATLDUMPPROPERTY(rgDBProp[ulProp].dwPropertyID, rgDBProp[ulProp].dwStatus); continue; } // Check that the property is being set with the correct VARTYPE if( (rgDBProp[ulProp].vValue.vt != pUPropInfo->VarType) && (rgDBProp[ulProp].vValue.vt != VT_EMPTY) ) { dwState |= SETPROP_ERRORS; dwState |= (rgDBProp[ulProp].dwOptions == DBPROPOPTIONS_REQUIRED) ? SETPROP_WAS_REQUIRED : 0; rgDBProp[ulProp].dwStatus = DBPROPSTATUS_BADVALUE; _ATLDUMPPROPERTY(rgDBProp[ulProp].dwPropertyID, rgDBProp[ulProp].dwStatus); continue; } // Check that the value is legal if( (rgDBProp[ulProp].vValue.vt != VT_EMPTY) && IsValidValue(ulCurSet, &(rgDBProp[ulProp])) == S_FALSE ) { dwState |= SETPROP_ERRORS; dwState |= (rgDBProp[ulProp].dwOptions == DBPROPOPTIONS_REQUIRED) ? SETPROP_WAS_REQUIRED : 0; rgDBProp[ulProp].dwStatus = DBPROPSTATUS_BADVALUE; _ATLDUMPPROPERTY(rgDBProp[ulProp].dwPropertyID, rgDBProp[ulProp].dwStatus); continue; } // Check for a bad COLID, we only catch bad DBIDs if( pUPropInfo->dwFlags & DBPROPFLAGS_COLUMNOK ) { if( CDBIDOps::IsValidDBID(&(rgDBProp[ulProp].colid)) == S_FALSE ) { dwState |= SETPROP_ERRORS; dwState |= (rgDBProp[ulProp].dwOptions == DBPROPOPTIONS_REQUIRED) ? SETPROP_WAS_REQUIRED : 0; rgDBProp[ulProp].dwStatus = DBPROPSTATUS_BADCOLUMN; _ATLDUMPPROPERTY(rgDBProp[ulProp].dwPropertyID, rgDBProp[ulProp].dwStatus); continue; } dwState |= SETPROP_COLUMN_LEVEL; } if(SetProperty(ulCurSet, ulCurProp, /*pUPropInfo,*/ &(rgDBProp[ulProp])) == S_OK) { dwState |= SETPROP_VALIDPROP; } else { dwState |= SETPROP_ERRORS; dwState |= (rgDBProp[ulProp].dwOptions == DBPROPOPTIONS_REQUIRED) ? SETPROP_WAS_REQUIRED : 0; } _ATLDUMPPROPERTY(rgDBProp[ulProp].dwPropertyID, rgDBProp[ulProp].dwStatus); } } vDefaultValue.Clear(); // At least one propid was marked as not S_OK if( dwState & SETPROP_ERRORS ) { if (!bIsCreating) { return (dwState & SETPROP_VALIDPROP) ? DB_S_ERRORSOCCURRED : DB_E_ERRORSOCCURRED; } else { return (dwState & SETPROP_WAS_REQUIRED) ? DB_E_ERRORSOCCURRED : DB_S_ERRORSOCCURRED; } } return S_OK; } OUT_OF_LINE HRESULT CopyUPropVal( _In_ ULONG iPropSet, _Inout_ UPROPVAL* rgUPropVal) { HRESULT hr = S_OK; UPROP* pUProp; UPROPVAL* pUPropVal; DBPROP dbProp; ATLENSURE_RETURN(rgUPropVal); ATLASSERT(iPropSet < m_cUPropSet); VariantInit(&dbProp.vValue); pUProp = &(m_pUProp[iPropSet]); for(ULONG ul=0; ulcPropIds; ul++) { pUPropVal = &(pUProp->pUPropVal[ul]); // Transfer dwOptions rgUPropVal[ul].dwOption = pUPropVal->dwOption; // Transfer Flags rgUPropVal[ul].dwFlags = pUPropVal->dwFlags; // Transfer Column Properties if( pUPropVal->pCColumnIds ) { rgUPropVal[ul].pCColumnIds=NULL; ATLTRY(rgUPropVal[ul].pCColumnIds = new CColumnIds) ATLPREFAST_SUPPRESS(6385) if( rgUPropVal[ul].pCColumnIds ) ATLPREFAST_UNSUPPRESS() { CColumnIds* pColIds = pUPropVal->pCColumnIds; for (size_t i = 0; i < pColIds->GetCount(); i++) { hr = (pUPropVal->pCColumnIds)->GetValue(i, &(dbProp.dwOptions),&(dbProp.colid), &(dbProp.vValue)); if( FAILED(hr) ) goto EXIT; if( FAILED(hr = (rgUPropVal[ul].pCColumnIds)->AddColumnId(&dbProp)) ) goto EXIT; } } else { hr = E_OUTOFMEMORY; goto EXIT; } } else { rgUPropVal[ul].pCColumnIds = NULL; } // Transfer value VariantInit(&(rgUPropVal[ul].vValue)); if( FAILED(hr = VariantCopy(&(rgUPropVal[ul].vValue), &(pUPropVal->vValue))) ) goto EXIT; } EXIT: VariantClear(&(dbProp.vValue)); return hr; } void ClearPropertyInError() { ATLASSUME( m_rgdwPropsInError ); memset(m_rgdwPropsInError, 0, m_cUPropSet * m_cElemPerSupported * sizeof(DWORD)); } void CopyUPropSetsSupported(_Out_ DWORD* rgdwSupported) { Checked::memcpy_s(rgdwSupported, m_cUPropSet * m_cElemPerSupported * sizeof(DWORD), m_rgdwSupported, m_cUPropSet * m_cElemPerSupported * sizeof(DWORD)); } virtual HRESULT InitUPropSetsSupported() = 0; virtual HRESULT GetIndexofPropSet( _In_ const GUID* pPropSet, _Out_ ULONG* pulCurSet) = 0; ULONG GetCountofWritablePropsInPropSet(_In_ ULONG iPropSet) { ULONG cWritable = 0; UPROPINFO* pUPropInfo; ATLENSURE( m_pUPropSet ); ATLASSERT( iPropSet < m_cUPropSet ); pUPropInfo = m_pUPropSet[iPropSet].pUPropInfo; for(ULONG ul=0; ul(sizeof(UPROPSET)), cSets); if (pPropSet == NULL) return E_OUTOFMEMORY; pPropSet = (*pfnGetSet)(&cPropSet, &cElemsPerSupported, pPropSet, (GUID*)&GUID_NULL); memset(m_rgdwSupported, 0xFFFF, cPropSet * cElemsPerSupported * sizeof(DWORD)); CoTaskMemFree(pPropSet); return S_OK; } HRESULT InternalGetDefaultValue( _In_ PGetPropSet pfnGetSet, _In_ ULONG iPropSet, _In_ DBPROPID dwPropId, _Out_ DWORD* pdwOption, _Out_ VARIANT* pVar) { if (pdwOption == NULL || pVar == NULL) return E_INVALIDARG; ULONG cUPropSet = 0, cElemPerSupported =0; int cSets = (int)(DWORD_PTR)(*pfnGetSet)(NULL, &cElemPerSupported, NULL, (GUID*)&GUID_NULL); UPROPSET* pPropSet = (UPROPSET*)::ATL::AtlCoTaskMemCAlloc(static_cast(sizeof(UPROPSET)), cSets); if (pPropSet == NULL) return E_OUTOFMEMORY; pPropSet = (*pfnGetSet)(&cUPropSet, &cElemPerSupported, pPropSet, (GUID*)&GUID_NULL); ATLASSERT(iPropSet < cUPropSet); for (ULONG iProp = 0; iProp < pPropSet[iPropSet].cUPropInfo; iProp++) { UPROPINFO& rInfo = pPropSet[iPropSet].pUPropInfo[iProp]; if (rInfo.dwPropId == dwPropId) { HRESULT hr = S_OK; pVar->vt = rInfo.VarType; *pdwOption = rInfo.dwOption; switch(rInfo.VarType) { case VT_BSTR: pVar->bstrVal = SysAllocString(rInfo.szVal); if (pVar->bstrVal == NULL && rInfo.szVal != NULL) hr = E_OUTOFMEMORY; break; default: pVar->lVal = (DWORD)rInfo.dwVal; break; } CoTaskMemFree(pPropSet); return hr; } } CoTaskMemFree(pPropSet); return E_FAIL; } HRESULT InternalFInit( _In_ PGetPropSet pfnGetSet, _In_opt_ CUtlPropsBase* pCopyMe = NULL) { HRESULT hr; ULONG ulPropId; ULONG cPropIds; ULONG iPropSet; ULONG iNewDex; UPROPINFO* pUPropInfo; // If a pointer is passed in, we should copy that property object if( pCopyMe ) { // Establish some base values m_cUPropSet = pCopyMe->m_cUPropSet; CoTaskMemFree(m_pUPropSet); m_pUPropSet = (UPROPSET*)::ATL::AtlCoTaskMemCAlloc(static_cast(sizeof(UPROPSET)), m_cUPropSet); if (m_pUPropSet == NULL) return E_OUTOFMEMORY; Checked::memcpy_s(m_pUPropSet, sizeof(UPROPSET) * m_cUPropSet, pCopyMe->m_pUPropSet, sizeof(UPROPSET) * m_cUPropSet); m_cElemPerSupported = pCopyMe->m_cElemPerSupported; ATLASSERT( (m_cUPropSet != 0) && (m_cElemPerSupported != 0) ); // Retrieve Supported Bitmask ATLTRY(m_rgdwSupported.Allocate(::ATL::AtlMultiplyThrow(m_cUPropSet, m_cElemPerSupported))); ATLTRY(m_rgdwPropsInError.Allocate(::ATL::AtlMultiplyThrow(m_cUPropSet, m_cElemPerSupported))); if( m_rgdwSupported == NULL|| m_rgdwPropsInError == NULL) { m_rgdwSupported.Free(); m_rgdwPropsInError.Free(); return E_OUTOFMEMORY; } ClearPropertyInError(); pCopyMe->CopyUPropSetsSupported(m_rgdwSupported); } else { int cSets = (int)(DWORD_PTR)(*pfnGetSet)(NULL, &m_cElemPerSupported, NULL, (GUID*)&GUID_NULL); UPROPSET* pSet = (UPROPSET*)::ATL::AtlCoTaskMemCAlloc(static_cast(sizeof(UPROPSET)), cSets); if (pSet == NULL) return E_OUTOFMEMORY; pSet = (*pfnGetSet)(&m_cUPropSet, &m_cElemPerSupported, pSet, (GUID*)&GUID_NULL); CoTaskMemFree(m_pUPropSet); m_pUPropSet = pSet; ATLASSERT( (m_cUPropSet != 0) && (m_cElemPerSupported != 0) ); if( !m_cUPropSet || !m_cElemPerSupported ) return E_FAIL; ATLTRY(m_rgdwSupported.Allocate(::ATL::AtlMultiplyThrow(m_cUPropSet, m_cElemPerSupported))); ATLTRY(m_rgdwPropsInError.Allocate(::ATL::AtlMultiplyThrow(m_cUPropSet, m_cElemPerSupported))); if( m_rgdwSupported == NULL || m_rgdwPropsInError == NULL) { m_rgdwSupported.Free(); m_rgdwPropsInError.Free(); return E_OUTOFMEMORY; } else ClearPropertyInError(); if( FAILED(hr = InitUPropSetsSupported()) ) { m_rgdwSupported.Free(); return hr; } } // Allocate UPROPS structures for the count of Property sets ATLTRY(m_pUProp.Allocate(m_cUPropSet)); if( m_pUProp) { memset(m_pUProp, 0, m_cUPropSet * sizeof(UPROP)); } else { m_cUPropSet = 0; return E_OUTOFMEMORY; } // With in the UPROPS Structure allocate and intialize the // Property IDs that belong to this property set. for(iPropSet=0; iPropSet 0 ) { CAutoVectorPtr< UPROPINFO* > rgpUPropInfo; CAutoVectorPtr< UPROPVAL > rgUPropVal; rgpUPropInfo.Allocate( cPropIds ); rgUPropVal.Allocate( cPropIds ); if ( (rgpUPropInfo == NULL) || (rgUPropVal == NULL) ) { return E_OUTOFMEMORY; } if( pCopyMe ) { pCopyMe->CopyUPropInfo(iPropSet, rgpUPropInfo); if( FAILED(hr = pCopyMe->CopyUPropVal(iPropSet, rgUPropVal)) ) return hr; } else { // Clear Pointer Array memset(rgpUPropInfo, 0, cPropIds * sizeof(UPROPINFO*)); // Set Pointer to correct property ids with a property set pUPropInfo = m_pUPropSet[iPropSet].pUPropInfo; // Set up the writable property buffers iNewDex = 0; for(ulPropId=0; ulPropId 0 && !rgPropertySets ) return E_INVALIDARG; // New argument check for > 1 cPropertyIDs and NULL pointer for // array of property ids. for(ULONG ul=0; ul piIndex; CComCritSecLock lock(m_oCriticalSection); // ppGuid contains an array of GUIDs that the consumer can retrieve. // This is based upon the interface calling this function ATLENSURE_RETURN(ppGuid != NULL); // We need to have special handling for DBPROPSET_PROPERTIESINERROR.. // Turn on a flags to indicate this mode and make cTmpPropertySets // appear to be 0 if( (m_dwFlags & ARGCHK_PROPERTIESINERROR) && rgPropertySets && (rgPropertySets[0].guidPropertySet == DBPROPSET_PROPERTIESINERROR) ) { cTmpPropertySets = 0; dwStatus |= GETPROP_PROPSINERROR; } // If the consumer does not restrict the property sets // by specify an array of property sets and a cTmpPropertySets // greater than 0, then we need to make sure we // have some to return if( cTmpPropertySets == 0 ) { // There are times when we are called from IRowsetInfo, ISessionProperties, etc. // where we should return only the appropriate rowset when cTmpPropertySets is // zero. This solves the problem if the user has more than one set specified in // their PROPSET_MAP. // Determine the number of property sets supported if (ppGuid == NULL) { cSets = m_cUPropSet; } else { ULONG ulActualProps = 0; CAutoVectorPtr < ULONG > piSetIndex; piSetIndex.Allocate( cSelectProps ); if (piSetIndex == NULL) return E_OUTOFMEMORY; // Also, find the index for the set we are looking for ULONG l; for (l=0; l(sizeof(DBPROPSET))); if(pPropSet) { memset(pPropSet, 0, cSets * sizeof(DBPROPSET)); // Fill in the output array iPropSet = 0; for(ulSet=0; ulSet(sizeof(DBPROP))); if( pProp ) { // Initialize Buffer memset(pProp, 0, cProps * sizeof(DBPROP)); for(ulProp=0; ulPropdwStatus = DBPROPSTATUS_OK; // Retrieve current value of properties if( dwStatus & GETPROP_ALLPROPIDS ) { // Verify property is supported, if not do not return if(!TESTBIT(&(m_rgdwSupported[ulCurSet * m_cElemPerSupported]), ulProp) ) continue; // If we are looking for properties in error, then we should ignore all // that are not in error. if( (dwStatus & GETPROP_PROPSINERROR) && !TESTBIT(&(m_rgdwPropsInError[ulCurSet * m_cElemPerSupported]), ulProp) ) continue; pUPropInfo = &(m_pUPropSet[ulCurSet].pUPropInfo[ulProp]); ATLENSURE_RETURN( pUPropInfo ); pCurProp->dwPropertyID = pUPropInfo->dwPropId; pCurProp->colid = DB_NULLID; // If the property is WRITEABLE or CHANGABLE, then the value will // be gotten from the UPROPVAL array, else it will be // derive from the GetDefaultValue if( pUPropInfo->dwFlags & (DBPROPFLAGS_WRITE | DBPROPFLAGS_CHANGE) ) { pUPropVal = &(m_pUProp[ulCurSet]. pUPropVal[GetUPropValIndex(ulCurSet, pCurProp->dwPropertyID)]); ATLENSURE_RETURN( pUPropVal ); // Check to see if this property supports column level, // if so, dump those nodes if( pUPropInfo->dwFlags & DBPROPFLAGS_COLUMNOK ) { if( pUPropVal->pCColumnIds ) { RetrieveColumnIdProps(pProp, pUPropVal, &ulNext); continue; } } pCurProp->dwOptions = pUPropVal->dwOption; hr = VariantCopy(&(pCurProp->vValue), &(pUPropVal->vValue)); } else { GetDefaultValue(ulCurSet, pUPropInfo->dwPropId, &(pCurProp->dwOptions), &(pCurProp->vValue)); } // Return all Properties in Error with CONFLICT status if( dwStatus & GETPROP_PROPSINERROR ) pCurProp->dwStatus = DBPROPSTATUS_CONFLICTING; dwStatus |= GETPROP_VALIDPROP; } else { // Process Properties based on Restriction array. pCurProp->dwPropertyID = rgPropertySets[ulSet].rgPropertyIDs[ulProp]; pCurProp->colid = DB_NULLID; if( GetIndexofPropIdinPropSet(ulCurSet, pCurProp->dwPropertyID, &ulCurProp) == S_OK) { // Supported pUPropInfo = &(m_pUPropSet[ulCurSet].pUPropInfo[ulCurProp]); ATLENSURE_RETURN( pUPropInfo ); // If the property is WRITEABLE, then the value will // be gotten from the UPROPVAL array, else it will be // derive from the GetDefaultValue if( pUPropInfo->dwFlags & (DBPROPFLAGS_WRITE | DBPROPFLAGS_CHANGE) ) { pUPropVal = &(m_pUProp[ulCurSet]. pUPropVal[GetUPropValIndex(ulCurSet, pCurProp->dwPropertyID)]); ATLENSURE_RETURN( pUPropVal ); // Check to see if this property supports column level, // if so, dump those nodes if( pUPropInfo->dwFlags & DBPROPFLAGS_COLUMNOK ) { if( pUPropVal->pCColumnIds ) { RetrieveColumnIdProps(pProp, pUPropVal, &ulNext); continue; } } pCurProp->dwOptions = pUPropVal->dwOption; hr = VariantCopy(&(pCurProp->vValue), &(pUPropVal->vValue)); } else { GetDefaultValue(ulCurSet, pUPropInfo->dwPropId, &(pCurProp->dwOptions), &(pCurProp->vValue)); } dwStatus |= GETPROP_VALIDPROP; } else { // Not Supported pCurProp->dwStatus = DBPROPSTATUS_NOTSUPPORTED; dwStatus |= GETPROP_ERRORSOCCURRED; } } _ATLDUMPPROPERTY(pCurProp->dwPropertyID, pCurProp->dwStatus); // Increment return nodes count ulNext++; } } else { ATLTRACE(atlTraceDBProvider, 0, _T("Could not allocate DBPROP array for GetProperties\n")); if( pPropSet ) { //Since we have no properties to return, then we //need to free allocated memory and return 0,NULL for(ulSet=0; ulSetcPropIds; ul++) { if( pUProp->pUPropVal[ul].pCColumnIds ) cExtra += (pUProp->pUPropVal[ul].pCColumnIds)->GetCountOfPropColids(); } return cExtra; } ULONG GetUPropValIndex( _In_ ULONG iCurSet, _In_ DBPROPID dwPropId) { for(ULONG ul=0; uldwPropId == dwPropId ) return ul; } return 0; } void RetrieveColumnIdProps( _In_ DBPROP* pCurProp, _In_ UPROPVAL* pUPropVal, _Inout_ ULONG* pulNext) { // Reset to first Node CColumnIds* pColIds = pUPropVal->pCColumnIds; HRESULT hr = E_FAIL; for (size_t i = 0; i < pColIds->GetCount(); i++) { CPropColID colId; hr = pColIds->GetValue(i, &(pCurProp->dwOptions), &(pCurProp->colid),&(pCurProp->vValue)); if (SUCCEEDED(hr)) pCurProp = &(pCurProp[++(*pulNext)]); } (*pulNext)++; } //Check the arguments for Retrieve Properties HRESULT GetPropertiesArgChk( _In_ const ULONG cPropertySets, _In_count_(cPropertySets) const DBPROPIDSET rgPropertySets[], _Out_ ULONG* pcProperties, _Out_ _Deref_post_opt_cap_(*pcProperties) DBPROPSET** prgProperties) { // Initialize values if(pcProperties) *pcProperties = 0; if(prgProperties) *prgProperties = NULL; // Check Arguments if( ((cPropertySets > 0) && !rgPropertySets) || !pcProperties || !prgProperties ) return E_INVALIDARG; // New argument check for > 1 cPropertyIDs and NULL pointer for // array of property ids. for(ULONG ul=0; ul 1) || (rgPropertySets[ul].cPropertyIDs != 0) || (rgPropertySets[ul].rgPropertyIDs != NULL) ) return E_INVALIDARG; } } return S_OK; } OUT_OF_LINE HRESULT FInit(_In_opt_ CUtlPropsBase* pCopyMe = NULL) = 0; }; // Implementation Class template class ATL_NO_VTABLE CUtlProps : public CUtlPropsBase { public: CUtlProps(_In_ DWORD dwFlags = 0) { ClearMemberVars(); m_dwFlags = dwFlags; } virtual ~CUtlProps() { FreeMemory(); } void FreeMemory() { // Remove Property Information if( m_pUProp ) { for(ULONG ulPropSet=0; ulPropSetcProperties == 1) || (pPropSet->rgProperties) ); HRESULT hr = S_OK; DBPROP* pProp = &(pPropSet->rgProperties[0]); if(InlineIsEqualGUID(*piid, __uuidof(IAccessor))) pProp->dwPropertyID = DBPROP_IAccessor; else if(InlineIsEqualGUID(*piid,__uuidof(IColumnsInfo))) pProp->dwPropertyID = DBPROP_IColumnsInfo; else if(InlineIsEqualGUID(*piid , __uuidof(IRowset))) pProp->dwPropertyID = DBPROP_IRowset; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetInfo))) pProp->dwPropertyID = DBPROP_IRowsetInfo; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetLocate))) pProp->dwPropertyID = DBPROP_IRowsetLocate; else if(InlineIsEqualGUID(*piid , __uuidof(IColumnsRowset))) pProp->dwPropertyID = DBPROP_IColumnsRowset; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetResynch))) pProp->dwPropertyID = DBPROP_IRowsetResynch; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetScroll))) pProp->dwPropertyID = DBPROP_IRowsetScroll; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetChange))) pProp->dwPropertyID = DBPROP_IRowsetChange; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetUpdate))) pProp->dwPropertyID = DBPROP_IRowsetUpdate; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetIdentity))) pProp->dwPropertyID = DBPROP_IRowsetIdentity; else if(InlineIsEqualGUID(*piid , __uuidof(IConnectionPointContainer))) pProp->dwPropertyID = DBPROP_IConnectionPointContainer; else if(InlineIsEqualGUID(*piid , __uuidof(ISupportErrorInfo))) pProp->dwPropertyID = DBPROP_ISupportErrorInfo; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetIndex))) pProp->dwPropertyID = DBPROP_IRowsetIndex; #if( OLEDBVER >= 0x0200 && 0 /* These interfaces are defined nowhere */ ) else if(InlineIsEqualGUID(*piid , __uuidof(IProvideMoniker))) pProp->dwPropertyID = DBPROP_IProvideMoniker; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetNotify))) pProp->dwPropertyID = DBPROP_IRowsetNotify; else if(InlineIsEqualGUID(*piid , __uuidof(IReadData))) pProp->dwPropertyID = DBPROP_IReadData; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetExactScroll))) pProp->dwPropertyID = DBPROP_IRowsetExactScroll; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetNextRowset))) pProp->dwPropertyID = DBPROP_IRowsetNextRowset; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetNewRowAfter))) pProp->dwPropertyID = DBPROP_IRowsetNewRowAfter; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetWithParameters))) pProp->dwPropertyID = DBPROP_IRowsetWithParameters; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetFind))) pProp->dwPropertyID = DBPROP_IRowsetFind; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetAsynch))) pProp->dwPropertyID = DBPROP_IRowsetAsynch; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetKeys))) pProp->dwPropertyID = DBPROP_IRowsetKeys; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetWatchAll))) pProp->dwPropertyID = DBPROP_IRowsetWatchAll; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetWatchNotify))) pProp->dwPropertyID = DBPROP_IRowsetWatchNotify; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetWatchRegion))) pProp->dwPropertyID = DBPROP_IRowsetWatchRegion; else if(InlineIsEqualGUID(*piid , __uuidof(IRowsetCopyRows))) pProp->dwPropertyID = DBPROP_IRowsetCopyRows; #endif //#if( OLEDBVER >= 0x0200 ) else hr = S_FALSE; // If the IID can be mapped to a DBPROPID, the // we need to initialize the vValue to TRUE if(hr == S_OK) { // Set PropertySet pPropSet->guidPropertySet = DBPROPSET_ROWSET; // Set Property pProp->dwOptions = DBPROPOPTIONS_REQUIRED; pProp->dwStatus = 0; pProp->colid = DB_NULLID; VariantInit(&(pProp->vValue)); pProp->vValue.vt = VT_BOOL; V_BOOL(&(pProp->vValue)) = ATL_VARIANT_TRUE; } return hr; } void SetPropertyInError( _In_ const ULONG iPropSet, _In_ const ULONG iPropId) { SETBIT(&(m_rgdwPropsInError[iPropSet * m_cElemPerSupported]), iPropId); } BOOL IsPropSet( _In_ const GUID* pguidPropSet, _In_ DBPROPID dwPropId) { HRESULT hr; ULONG iPropSet; ULONG iPropId; VARIANT vValue; DWORD dwOptions; VariantInit(&vValue); if( GetIndexofPropSet(pguidPropSet, &iPropSet) == S_OK ) { if( GetIndexofPropIdinPropSet(iPropSet, dwPropId, &iPropId) == S_OK ) { if( m_pUPropSet[iPropSet].pUPropInfo[iPropId].dwFlags & (DBPROPFLAGS_WRITE | DBPROPFLAGS_CHANGE) ) { ULONG iPropVal = GetUPropValIndex(iPropSet, dwPropId); dwOptions = m_pUProp[iPropSet].pUPropVal[iPropVal].dwOption; hr = VariantCopy(&vValue, &(m_pUProp[iPropSet]. pUPropVal[iPropVal].vValue)); } else { hr = GetDefaultValue(iPropSet, dwPropId, &dwOptions, &vValue); } if( dwOptions == DBPROPOPTIONS_REQUIRED ) { ATLASSERT( vValue.vt == VT_BOOL ); if( SUCCEEDED(hr) && (V_BOOL(&vValue) != ATL_VARIANT_FALSE) ) { VariantClear(&vValue); return TRUE; } } } } VariantClear(&vValue); return FALSE; } OUT_OF_LINE HRESULT GetPropValue( _In_ const GUID* pguidPropSet, _In_ DBPROPID dwPropId, _Out_ VARIANT* pvValue) { HRESULT hr = E_FAIL; ULONG iPropSet; ULONG iPropId; DWORD dwOptions; CComCritSecLock lock(m_oCriticalSection); if( GetIndexofPropSet(pguidPropSet, &iPropSet) == S_OK ) { if( GetIndexofPropIdinPropSet(iPropSet, dwPropId, &iPropId) == S_OK ) { if( m_pUPropSet[iPropSet].pUPropInfo[iPropId].dwFlags & (DBPROPFLAGS_WRITE | DBPROPFLAGS_CHANGE) ) { hr = VariantCopy(pvValue, &(m_pUProp[iPropSet].pUPropVal[ GetUPropValIndex(iPropSet, dwPropId)].vValue)); } else { VariantClear(pvValue); hr = GetDefaultValue(iPropSet, dwPropId, &dwOptions, pvValue); } } } return hr; } HRESULT SetPropValue( _In_ const GUID* pguidPropSet, _In_ DBPROPID dwPropId, _In_ VARIANT* pvValue) { HRESULT hr = E_FAIL; ULONG iPropSet; ULONG iPropId; CComCritSecLock lock(m_oCriticalSection); if( GetIndexofPropSet(pguidPropSet, &iPropSet) == S_OK ) { if( GetIndexofPropIdinPropSet(iPropSet, dwPropId, &iPropId) == S_OK ) { ATLASSUME( m_pUPropSet[iPropSet].pUPropInfo[iPropId].dwFlags & (DBPROPFLAGS_WRITE | DBPROPFLAGS_CHANGE) ); hr = VariantCopy(&(m_pUProp[iPropSet].pUPropVal[ GetUPropValIndex(iPropSet, dwPropId)].vValue), pvValue); } } return hr; } //Pointer to properties in error mask DWORD* GetPropsInErrorPtr() { return m_rgdwPropsInError; } ULONG GetUPropSetCount() { return m_cUPropSet; } void SetUPropSetCount(_In_ ULONG c) { m_cUPropSet = c; } // NOTE: The following functions depend on all prior // properties in the array being writable. // This is because the UPROP array contains only writable elements, // and the UPROPINFO array contains writable and read-only elements. // (If this is a problem, we would need to define which one it came from // and add the appropriate ATLASSERTs...) //Get DBPROPOPTIONS_xx DWORD GetPropOption( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); return m_pUProp[iPropSet].pUPropVal[iProp].dwOption; } //Set DBPROPOPTIONS_xx void SetPropOption( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_ DWORD dwOption) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); m_pUProp[iPropSet].pUPropVal[iProp].dwOption = dwOption; } //Determine if property is required and variant_true BOOL IsRequiredTrue( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); ATLASSUME(m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt == VT_BOOL); return( (m_pUProp[iPropSet].pUPropVal[iProp].dwOption == DBPROPOPTIONS_REQUIRED) && (V_BOOL(&m_pUProp[iPropSet].pUPropVal[iProp].vValue) != ATL_VARIANT_FALSE) ); } DWORD GetInternalFlags( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); return m_pUProp[iPropSet].pUPropVal[iProp].dwFlags; } void AddInternalFlags( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_ DWORD dwFlags) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); m_pUProp[iPropSet].pUPropVal[iProp].dwFlags |= dwFlags; } void RemoveInternalFlags( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_ DWORD dwFlags) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); m_pUProp[iPropSet].pUPropVal[iProp].dwFlags &= ~dwFlags; } VARIANT * GetVariant( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); return & m_pUProp[iPropSet].pUPropVal[iProp].vValue; } HRESULT SetVariant( _In_ ULONG iPropSet, _In_ ULONG iProp, _Out_ VARIANT *pv) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); // Does VariantClear first. CComCritSecLock lock(m_oCriticalSection); return VariantCopy( &m_pUProp[iPropSet].pUPropVal[iProp].vValue, pv ); } void SetValEmpty( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); VariantClear( &m_pUProp[iPropSet].pUPropVal[iProp].vValue ); } BOOL IsEmpty( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); return ( m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt == VT_EMPTY); } void SetValBool( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_ VARIANT_BOOL bVal) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); CComCritSecLock lock(m_oCriticalSection); // Note that we accept any "true" value. VariantClear(&m_pUProp[iPropSet].pUPropVal[iProp].vValue); m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt = VT_BOOL; V_BOOL(&m_pUProp[iPropSet].pUPropVal[iProp].vValue) = (bVal ? ATL_VARIANT_TRUE : ATL_VARIANT_FALSE); } VARIANT_BOOL GetValBool( _In_ ULONG iPropSet, _In_ ULONG iProp) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); ATLASSUME(m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt == VT_BOOL); return V_BOOL(&m_pUProp[iPropSet].pUPropVal[iProp].vValue); } void SetValShort( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_ SHORT iVal) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); VariantClear(&m_pUProp[iPropSet].pUPropVal[iProp].vValue); m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt = VT_I2; m_pUProp[iPropSet].pUPropVal[iProp].vValue.iVal = iVal; } SHORT GetValShort( _In_ ULONG iPropSet, _In_ ULONG iProp) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); ATLASSUME(m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt == VT_I2); return m_pUProp[iPropSet].pUPropVal[iProp].vValue.iVal; } void SetValLong( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_ LONG lVal) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); VariantClear(&m_pUProp[iPropSet].pUPropVal[iProp].vValue); m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt = VT_I4; m_pUProp[iPropSet].pUPropVal[iProp].vValue.lVal = lVal; } LONG GetValLong( _In_ ULONG iPropSet, _In_ ULONG iProp) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); ATLASSUME(m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt == VT_I4); return m_pUProp[iPropSet].pUPropVal[iProp].vValue.lVal; } HRESULT SetValString( _In_ ULONG iPropSet, _In_ ULONG iProp, _In_z_ const WCHAR *pwsz) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); VARIANT *pv = &m_pUProp[iPropSet].pUPropVal[iProp].vValue; VariantClear(pv); pv->bstrVal = SysAllocString(pwsz); if (pv->bstrVal) pv->vt = VT_BSTR; else return E_FAIL; // See if this was used for non-string type. // Typically this is an easy way to pass integer as a string. if (GetExpectedVarType(iPropSet,iProp) == VT_BSTR) return NOERROR; if (pwsz[0] != L'\0') { HRESULT hr=VariantChangeType( pv, pv, 0, GetExpectedVarType(iPropSet,iProp) ); if(FAILED(hr)) { pv->vt = VT_EMPTY; } return hr; } // Set to "", which for non-string means empty. SysFreeString(pv->bstrVal); return NOERROR; } const WCHAR * GetValString( _In_ ULONG iPropSet, _In_ ULONG iProp) { CComCritSecLock lock(m_oCriticalSection); ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); ATLASSUME(m_pUProp[iPropSet].pUPropVal[iProp].vValue.vt == VT_BSTR); return m_pUProp[iPropSet].pUPropVal[iProp].vValue.bstrVal; } const GUID * GetGuid(_In_ ULONG iPropSet) { ATLASSERT(iPropSet < m_cUPropSet); return m_pUPropSet[iPropSet].pPropSet; } DWORD GetPropID( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); return m_pUPropSet[iPropSet].pUPropInfo[iProp].dwPropId; } VARTYPE GetExpectedVarType( _In_ ULONG iPropSet, _In_ ULONG iProp) { ATLASSERT(( (iPropSet < m_cUPropSet) && (iProp < m_pUPropSet[iPropSet].cUPropInfo) && (iProp < m_pUProp[iPropSet].cPropIds) )); return m_pUPropSet[iPropSet].pUPropInfo[iProp].VarType; } virtual HRESULT GetIndexofPropSet( _In_ const GUID* pPropSet, _Out_ ULONG* pulCurSet) { ATLENSURE_RETURN(pPropSet && pulCurSet); for(ULONG ul=0; uldwPropertyID; CComVariant var = pDBProp->vValue; switch(dwPropertyID) { case DBPROP_IRowsetLocate: case DBPROP_LITERALBOOKMARKS: case DBPROP_ORDEREDBOOKMARKS: { CDBPropSet set(DBPROPSET_ROWSET); CComVariant newVar; bool bVal; if (var.boolVal == ATL_VARIANT_TRUE) bVal = true; else bVal = false; newVar = bVal; // Set the bookmarks property as they are chained. We also need to // turn off IRowsetLocate if we're setting BOOKMARKS to false (see // the DBPROP_BOOKMARKS case statement. if (var.boolVal == ATL_VARIANT_FALSE) SetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetLocate, &newVar); SetPropValue(&DBPROPSET_ROWSET, DBPROP_BOOKMARKS, &newVar); // If you set IRowsetLocate to true, then the rowset can // handle backward scrolling if (dwPropertyID == DBPROP_IRowsetLocate) SetPropValue(&DBPROPSET_ROWSET, DBPROP_CANSCROLLBACKWARDS, &newVar); return S_OK; } break; case DBPROP_IRowsetScroll: { CDBPropSet set(DBPROPSET_ROWSET); if (var.boolVal == ATL_VARIANT_TRUE) { if(!set.AddProperty(DBPROP_IRowsetLocate, true)) { return E_FAIL; } if(!set.AddProperty(DBPROP_BOOKMARKS, true)) { return E_FAIL; } if(!set.AddProperty(DBPROP_CANSCROLLBACKWARDS, true)) { return E_FAIL; } } const GUID* ppGuid[1]; ppGuid[0] = &DBPROPSET_ROWSET; return SetProperties(0, 1, &set, 1, ppGuid); } break; case DBPROP_BOOKMARKS: { if (var.boolVal == ATL_VARIANT_FALSE) { // Since we support bookmarks, if someone sets DBPROP_BOOKMARKS // to ATL_VARIANT_FALSE and DBPROP_IRowsetLocate is ATL_VARIANT_TRUE, // then we should return an error. This is an invalid // combination of properties. CComVariant locateVar; HRESULT hr = GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetLocate, &locateVar); if (SUCCEEDED(hr) && locateVar.boolVal == ATL_VARIANT_TRUE) { // If the DBPROP_BOOKMARKS is set to required, return // DB_E_ERRORSOCCURRED. Otherwise, set it to // DB_S_ERRORSOCCURRED. Note, we won't reset the property // since setting IRowsetLocate to ATL_VARIANT_TRUE will // set DBPROP_BOOKMARKS to ATL_VARIANT_TRUE pDBProp->dwStatus = DBPROPSTATUS_CONFLICTING; if (pDBProp->dwOptions == DBPROPOPTIONS_REQUIRED) return DB_E_ERRORSOCCURRED; else return DB_S_ERRORSOCCURRED; } } } break; // This code should only be included if you are a command or rowset. case DBPROP_UPDATABILITY: { if (var.lVal != 0) { CComVariant changeVar; HRESULT hr = GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetChange, &changeVar); if (FAILED(hr) || changeVar.boolVal == ATL_VARIANT_FALSE) { // It doesn't make sense to set DBPROP_UPDATABILITY // if DBPROP_IRowsetChange is FALSE (i.e. no updates) pDBProp->dwStatus = DBPROPSTATUS_CONFLICTING; if (pDBProp->dwOptions == DBPROPOPTIONS_REQUIRED) return DB_E_ERRORSOCCURRED; else return DB_S_ERRORSOCCURRED; } } } // Update the IAccessor::m_bIsChangeable flag as necessary // Hold off on this for now, it appears to be causing a GPF becuase // we're writing this off the session. // pT->m_bIsChangeable = (var.iVal & DBPROPVAL_UP_INSERT); break; case DBPROP_IRowsetUpdate: { // Set the DBPROP_IRowsetChange and DBPROP_IRowsetUpdate flags. // Setting DBPROP_IRowsetUpdate to true sets DBPROP_IRowsetChange // to true if (var.boolVal == ATL_VARIANT_TRUE) { CComVariant changeVar(true); CDBPropSet set(DBPROPSET_ROWSET); if(!set.AddProperty(DBPROP_IRowsetChange, changeVar)) { return E_FAIL; } const GUID* ppGuid[1]; ppGuid[0] = &DBPROPSET_ROWSET; return SetProperties(0, 1, &set, 1, ppGuid); } } break; default: break; } } return S_OK; } virtual HRESULT InitUPropSetsSupported() { return InternalInitUPropSetsSupported(T::_GetPropSet); } HRESULT GetIndexOfPropertyInSet( _In_ const GUID* pPropSet, _In_ DBPROPID dwPropertyId, _Out_ ULONG* piCurPropId, _Out_ ULONG* piCurSet) { HRESULT hr = GetIndexofPropSet(pPropSet, piCurSet); if (hr == S_FALSE) return hr; UPROPINFO* pUPropInfo = m_pUPropSet[*piCurSet].pUPropInfo; for(ULONG ul=0; ul class ATL_NO_VTABLE IDBPropertiesImpl : public IDBProperties, public CUtlProps { public: STDMETHOD(GetProperties)( _In_ ULONG cPropertySets, _In_count_(cPropertySets) const DBPROPIDSET rgPropertySets[], _Out_ ULONG *pcProperties, _Out_ _Deref_post_opt_cap_(*pcProperties) DBPROPSET **prgProperties) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBPropertiesImpl::GetProperties\n")); T* pT = (T*)this; // You can get PROPERTIESINERROR on IDBProperties::GetProperties so do the // appropriate argument checking for it. m_dwFlags |= ARGCHK_PROPERTIESINERROR; HRESULT hr = GetPropertiesArgChk(cPropertySets, rgPropertySets, pcProperties, prgProperties); if (FAILED(hr)) return hr; if (SUCCEEDED(hr)) { // To allow user defined property groups, we'll scan the property // sets. ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG cSets = (ULONG)(ULONG_PTR)pT->_GetPropSet(NULL, &ulPropElems); CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = pT->_GetPropSet(&ulPropSets, &ulPropElems, pSetA); typedef const GUID* PCGUID; if (pT->m_dwStatus & DSF_INITIALIZED) { for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::GetProperties(cPropertySets, rgPropertySets, pcProperties, prgProperties, ulPropInits, ppGuid); } else { // Only pass through initialization groups for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for(l=0; l::GetProperties(cPropertySets, rgPropertySets, pcProperties, prgProperties, ulPropInits, ppGuid); } } m_dwFlags |= ~ARGCHK_PROPERTIESINERROR; return hr; } ATLPREFAST_SUPPRESS(6387) STDMETHOD(GetPropertyInfo)( _In_ ULONG cPropertySets, _In_count_(cPropertySets) const DBPROPIDSET rgPropertySets[], _Out_ ULONG *pcPropertyInfoSets, _Out_ _Deref_post_opt_cap_(*pcPropertyInfoSets) DBPROPINFOSET **prgPropertyInfoSets, _Deref_opt_out_z_ OLECHAR **ppDescBuffer) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBPropertiesImpl::GetPropertyInfo\n")); T* pT = static_cast(this); T::ObjectLock cab(pT); if (pT->m_pCUtlPropInfo == NULL) { // Go ahead and create the m_pCUtlPropInfo but do not change the // Initialized status of the provider (see IDBInitialize::Initialize). ATLTRACE(atlTraceDBProvider, 2, _T("m_pCUtlPropInfo == NULL\n")); delete pT->m_pCUtlPropInfo; pT->m_pCUtlPropInfo = NULL; ATLTRY(pT->m_pCUtlPropInfo = new CUtlPropInfo()) if (pT->m_pCUtlPropInfo == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("IDBProperties::GetPropertyInfo Error : OOM\n")); return E_OUTOFMEMORY; } HRESULT hr = pT->m_pCUtlPropInfo->FInit(); if (hr != S_OK) { delete pT->m_pCUtlPropInfo; pT->m_pCUtlPropInfo = NULL; return E_FAIL; } } // Initialize if( pcPropertyInfoSets ) *pcPropertyInfoSets = 0; if( prgPropertyInfoSets ) *prgPropertyInfoSets = NULL; if( ppDescBuffer ) *ppDescBuffer = NULL; // Check Arguments if( ((cPropertySets > 0) && !rgPropertySets) || !pcPropertyInfoSets || !prgPropertyInfoSets ) return E_INVALIDARG; // New argument check for > 1 cPropertyIDs and NULL pointer for // array of property ids. const DWORD SPECIAL_GROUP = 1; const DWORD SPECIAL_SINGLE = 2; const DWORD SPECIALS = SPECIAL_GROUP | SPECIAL_SINGLE; DWORD dwSpecial = 0; for(ULONG ul=0; ulm_dwStatus & DSF_INITIALIZED) return pT->m_pCUtlPropInfo->GetPropertyInfo(cPropertySets, rgPropertySets, pcPropertyInfoSets, prgPropertyInfoSets, ppDescBuffer, true); else return pT->m_pCUtlPropInfo->GetPropertyInfo(cPropertySets, rgPropertySets, pcPropertyInfoSets, prgPropertyInfoSets, ppDescBuffer, false, &DBPROPSET_DBINITALL); } ATLPREFAST_UNSUPPRESS() STDMETHOD(SetProperties)( _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBPropertiesImpl::SetProperties\n")); HRESULT hr; CAutoVectorPtr < DBPROPSET > pdbPropSet; ULONG iProp; typedef const GUID* PCGUID; T* pT = static_cast(this); // Quick return if the Count of Properties is 0 if( cPropertySets == 0 ) return S_OK; // Determine how many sets are in the current map T::ObjectLock lock(pT); UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; ULONG cSets = (ULONG)(ULONG_PTR)pT->_GetPropSet(NULL, &ulPropElems); ULONG iNewSet, iSet; CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = pT->_GetPropSet(&ulPropSets, &ulPropElems, pSetA); hr = CUtlProps::SetPropertiesArgChk(cPropertySets, rgPropertySets); if(SUCCEEDED(hr)) { // We need to handle the DBINIT properties specially after being initialized. // - they should be treated as NOTSETTABLE at this point. if( pT->m_dwStatus & DSF_INITIALIZED ) { ATLASSERT(cPropertySets); BOOL fFoundDBINIT = FALSE; // Allocate a DBPROPSET structure of equal size pdbPropSet.Allocate( cPropertySets ); if( pdbPropSet == NULL ) return E_OUTOFMEMORY; for(iNewSet=0,iSet=0; iSet tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::SetProperties(0, iNewSet, pdbPropSet, ulPropInits, ppGuid); // If we have determined that one of the property sets was DBINIT, we may // need to fixup the returned hr value. if( fFoundDBINIT && SUCCEEDED(hr)) hr = DB_S_ERRORSOCCURRED; } else { // Note that m_pCUtlProps knows about initialization, // so we don't have to here. Only pass DBPROPSET_DBINIT or custom // initialization groups for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for(l=0; l::SetProperties(0, cPropertySets, rgPropertySets, ulPropInits, ppGuid); } } return hr; } }; #define BEGIN_SCHEMA_MAP(SchemaClass) \ typedef SchemaClass _SchemaClass; \ HRESULT _SchemaSupport( \ _Deref_opt_out_opt_ GUID** ppGuid, \ _Inout_opt_ IUnknown *pUnkOuter, \ _In_ REFIID rguidSchema, \ _In_ ULONG cRestrictions, \ _In_opt_count_(cRestrictions) const VARIANT rgRestrictions[], \ _In_ REFIID riid, \ _In_ ULONG cPropertySets, \ _In_opt_count_(cPropertySets) DBPROPSET rgPropertySets[], \ _Deref_opt_out_opt_ IUnknown **ppRowset) \ { \ int cGuids = 0; \ HRESULT hr = S_OK; \ if (ppGuid != NULL) \ *ppGuid = NULL; #define SCHEMA_ENTRY(guid, rowsetClass) \ if (ppGuid != NULL && SUCCEEDED(hr)) \ { \ cGuids++; \ *ppGuid = ATL::AtlSafeRealloc(*ppGuid, cGuids); \ hr = (*ppGuid == NULL) ? E_OUTOFMEMORY : S_OK; \ if (SUCCEEDED(hr)) \ (*ppGuid)[cGuids - 1] = guid; \ else \ return hr; \ } \ else \ { \ if (InlineIsEqualGUID(guid, rguidSchema)) \ { \ ATLASSUME(rgRestrictions != NULL); \ rowsetClass* pRowset = NULL; \ hr = CheckRestrictions(rguidSchema, cRestrictions, rgRestrictions); \ if (FAILED(hr)) \ return E_INVALIDARG; \ hr = CreateSchemaRowset(pUnkOuter, cRestrictions, \ rgRestrictions, riid, cPropertySets, \ rgPropertySets, ppRowset, pRowset); \ return hr; \ } \ } #define END_SCHEMA_MAP() \ if (ppGuid != NULL) \ return hr; \ return E_INVALIDARG; \ } template class ATL_NO_VTABLE IDBSchemaRowsetImpl: public IDBSchemaRowset { public: OUT_OF_LINE HRESULT InternalCreateSchemaRowset( _In_opt_ IUnknown *pUnkOuter, _In_ ULONG cRestrictions, _In_count_(cRestrictions) const VARIANT rgRestrictions[], _In_ REFIID riid, _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[], _Deref_opt_out_ IUnknown** ppRowset, _Inout_ IUnknown* pUnkThis, _Inout_ CUtlPropsBase* pProps, _Inout_opt_ IUnknown* pUnkSession) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBSchemaRowsetImpl::InternalCreateSchemaRowset\n")); UNREFERENCED_PARAMETER(cRestrictions); UNREFERENCED_PARAMETER(rgRestrictions); HRESULT hr, hrProps = S_OK; if (ppRowset != NULL) *ppRowset = NULL; if ((pUnkOuter != NULL) && !InlineIsEqualUnknown(riid)) return DB_E_NOAGGREGATION; CComPtr spUnk; hr = pUnkThis->QueryInterface(__uuidof(IUnknown), (void**)&spUnk); if (FAILED(hr)) return hr; hr = pProps->FInit(); if (FAILED(hr)) return hr; hr = pProps->SetPropertiesArgChk(cPropertySets, rgPropertySets); if (FAILED(hr)) return hr; const GUID* ppGuid[1]; ppGuid[0] = &DBPROPSET_ROWSET; // Call SetProperties. The true in the last parameter indicates // the special behavior that takes place on rowset creation (i.e. // it succeeds as long as any of the properties were not marked // as DBPROPS_REQUIRED. hrProps = pProps->SetProperties(0, cPropertySets, rgPropertySets, 1, ppGuid, true); if (FAILED(hrProps)) return hrProps; CComQIPtr spSite = spUnk; ATLASSERT(spSite != NULL); hr = spSite->SetSite(pUnkSession); if (FAILED(hr)) return hr; if (InlineIsEqualGUID(riid, IID_NULL)) return E_NOINTERFACE; if(ppRowset) { hr = spUnk->QueryInterface(riid, (void**)ppRowset); } if (FAILED(hr)) { if(ppRowset) { *ppRowset = NULL; } return hr; } return (hrProps == DB_S_ERRORSOCCURRED) ? hrProps : hr; } ATLPREFAST_SUPPRESS(6387) template HRESULT CreateSchemaRowset( _Inout_opt_ IUnknown *pUnkOuter, _In_ ULONG cRestrictions, _In_count_(cRestrictions) const VARIANT rgRestrictions[], _In_ REFIID riid, _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[], _Deref_opt_out_ IUnknown** ppRowset, _Inout_ SchemaRowsetClass*& pSchemaRowset) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBSchemaRowsetImpl::CreateSchemaRowset\n")); HRESULT hrProps, hr = S_OK; CComPolyObject* pPolyObj; SessionClass* pT = (SessionClass*) this; if (FAILED(hr = CComPolyObject::CreateInstance(pUnkOuter, &pPolyObj))) return hr; pSchemaRowset = &(pPolyObj->m_contained); CComPtr spOuterUnk; (pT->GetUnknown())->QueryInterface(__uuidof(IUnknown), (void**)&spOuterUnk); SchemaRowsetClass* myPT = (SchemaRowsetClass*) pSchemaRowset; hr = InternalCreateSchemaRowset(pUnkOuter, cRestrictions, rgRestrictions, riid, cPropertySets, rgPropertySets, ppRowset, pPolyObj, myPT, spOuterUnk); // Ref the created COM object and Auto release it on failure if (FAILED(hr)) { delete pPolyObj; return hr; } hrProps = hr; // Get a pointer to the Rowset instance DBROWCOUNT cRowsAffected; hr = pSchemaRowset->Execute(&cRowsAffected, cRestrictions, rgRestrictions); if (FAILED(hr)) return hr; return (hrProps == DB_S_ERRORSOCCURRED) ? hrProps : hr; } ATLPREFAST_UNSUPPRESS() void SetRestrictions( _In_ ULONG cRestrictions, _In_opt_ GUID* /*rguidSchema*/, _In_count_(cRestrictions) ULONG* rgRestrictions) { memset(rgRestrictions, 0, sizeof(ULONG) * cRestrictions); } STDMETHOD(GetSchemas)( _Out_ ULONG* pcSchemas, _Deref_out_ GUID** prgSchemas, _Deref_opt_out_ ULONG** prgRest) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBSchemaRowsetImpl::GetSchemas\n")); if (pcSchemas != NULL) *pcSchemas = 0; if (prgSchemas != NULL) *prgSchemas = NULL; if (pcSchemas == NULL || prgSchemas == NULL) return E_INVALIDARG; SessionClass* pT = (SessionClass*)this; HRESULT hr = pT->_SchemaSupport(prgSchemas, NULL, GUID_NULL, 0, NULL, GUID_NULL, 0, NULL, NULL); if (FAILED(hr)) return hr; CComPtr spMalloc; hr = CoGetMalloc(1, &spMalloc); if (FAILED(hr)) { CoTaskMemFree(*prgSchemas); *prgSchemas = NULL; return hr; } *pcSchemas = (ULONG)(spMalloc->GetSize(*prgSchemas) / sizeof(GUID)); if (prgRest != NULL) { // The OLE DB spec states that if prgRest == NULL not to return array // but it also says that is E_INVALIDARG, so doing first size_t nBytes=0; if( FAILED(hr=::ATL::AtlMultiply(&nBytes, sizeof(ULONG), static_cast(*pcSchemas)))) { spMalloc->Free(*prgSchemas); *prgSchemas = NULL; return hr; } *prgRest = (ULONG*) spMalloc->Alloc(nBytes); if (*prgRest == NULL) { spMalloc->Free(*prgSchemas); *prgSchemas = NULL; return E_OUTOFMEMORY; } pT->SetRestrictions(*pcSchemas, *prgSchemas, *prgRest); } return hr; } STDMETHOD(GetRowset)( _Inout_opt_ IUnknown *pUnkOuter, _In_ REFGUID rguidSchema, _In_ ULONG cRestrictions, _In_count_(cRestrictions) const VARIANT rgRestrictions[], _In_ REFIID riid, _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[], _Deref_out_ IUnknown **ppRowset) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBSchemaRowsetImpl::GetRowset\n")); SessionClass* pT = (SessionClass*)this; // You must specify a rowset pointer per the specification if (ppRowset == NULL || (cRestrictions > 0 && rgRestrictions == NULL) || (cPropertySets > 0 && rgPropertySets == NULL)) return E_INVALIDARG; if (rgPropertySets != NULL) { for (ULONG ulSet = 0; ulSet < cPropertySets; ulSet++) { if (rgPropertySets[ulSet].cProperties > 0 && rgPropertySets[ulSet].rgProperties == NULL) return E_INVALIDARG; } } return pT->_SchemaSupport(NULL, pUnkOuter, rguidSchema, cRestrictions, rgRestrictions, riid, cPropertySets, rgPropertySets, ppRowset); } HRESULT CheckRestrictions( _In_ REFGUID rguidSchema, _In_ ULONG cRestrictions, _In_count_(cRestrictions) const VARIANT rgRestrictions[]) { // Use this function to help check the validity of restrictions // against a schema rowset. const VARTYPE rgRestrictionTypes[3][4] = { { VT_BSTR, VT_BSTR, VT_BSTR, VT_BSTR }, // DBSCHEMA_TABLES { VT_BSTR, VT_BSTR, VT_BSTR, VT_BSTR }, // DBSCHEMA_COLUMNS { VT_UI2, VT_BOOL, VT_EMPTY, VT_EMPTY }}; // DBSCHEMA_PROVIDER_TYPES const ULONG ulMaxRestrictions[3] = { 4, 4, 2}; ULONG ulRes = 0; ULONG ulType = 3; if (InlineIsEqualGUID(rguidSchema, DBSCHEMA_TABLES)) ulType = 0; else if (InlineIsEqualGUID(rguidSchema, DBSCHEMA_COLUMNS)) ulType = 1; else if (InlineIsEqualGUID(rguidSchema, DBSCHEMA_PROVIDER_TYPES)) ulType = 2; if (ulType < 3) // I.E. we found one of our supported rowsets { ULONG ulCurrentRestrictions = 0x00; ULONG ulCurrentMask = 0x01; // Ask the provider's session object for its list of restrictions SessionClass* pT = (SessionClass*)this; pT->SetRestrictions(1, (GUID*)&rguidSchema, &ulCurrentRestrictions); ATLASSERT(ulType >= 0 && ulType < 3); // We allow VT_EMPTY through in case the consumer wanted to ignore this // restriction (basically a way to pass in 'NULL'). if (cRestrictions > ulMaxRestrictions[ulType]) return E_INVALIDARG; for (ulRes = 0; ulRes < cRestrictions; ulRes++) { // Check for obviously invalid types if (rgRestrictions[ulRes].vt != rgRestrictionTypes[ulType][ulRes] && rgRestrictions[ulRes].vt != DBTYPE_EMPTY && rgRestrictions[ulRes].vt != VT_NULL ) return E_INVALIDARG; // Check for restrictions the provider doesn't support. if (!(ulCurrentMask & ulCurrentRestrictions) && (rgRestrictions[ulRes].vt != DBTYPE_EMPTY)) return E_INVALIDARG; ulCurrentMask <<= 1; // Increase mask by * 2; } } return S_OK; } }; // IDBCreateCommandImpl template class ATL_NO_VTABLE IDBCreateCommandImpl : public IDBCreateCommand { public: ATLPREFAST_SUPPRESS(6387) STDMETHOD(CreateCommand)( _Inout_opt_ IUnknown *pUnkOuter, _In_ REFIID riid, _Deref_out_ IUnknown** ppvCommand) { ATLTRACE(atlTraceDBProvider, 2, _T("IDBCreateCommandImpl::CreateCommand\n")); T* pT = (T*) this; if (ppvCommand == NULL) return E_INVALIDARG; else *ppvCommand = NULL; HRESULT hr; CComPolyObject* pCommand; // You can't QI for an interface other than IUnknown when aggregating // and creating the object. You might ask for your own interface, // which would be bad. Note, we return DB_E_NOAGGREGATION instead of // CLASS_E_NOAGGREGATION due to OLE DB constraints. if (pUnkOuter != NULL && !InlineIsEqualUnknown(riid)) return DB_E_NOAGGREGATION; hr = CComPolyObject::CreateInstance(pUnkOuter, &pCommand); if (FAILED(hr)) return hr; ATLASSUME(pCommand != NULL); // Ref the created COM object and Auto release it on failure CComPtr spUnk; hr = pCommand->QueryInterface(&spUnk); if (FAILED(hr)) { delete pCommand; // must hand delete as it is not ref'd return hr; } ATLASSERT(pCommand->m_contained.m_spUnkSite == NULL); CComPtr spOuterUnk; hr = pT->QueryInterface(__uuidof(IUnknown), (void**)&spOuterUnk); if (SUCCEEDED(hr)) { hr = pCommand->m_contained.SetSite(spOuterUnk); if (SUCCEEDED(hr)) { hr = pCommand->QueryInterface(riid, (void**)ppvCommand); } } return hr; } ATLPREFAST_UNSUPPRESS() }; // IGetDataSourceImpl template class ATL_NO_VTABLE IGetDataSourceImpl : public IGetDataSource { public: STDMETHOD(GetDataSource)( _In_ REFIID riid, _Deref_out_ IUnknown **ppDataSource) { ATLTRACE(atlTraceDBProvider, 2, _T("IGetDataSourceImpl::GetDataSource\n")); if (ppDataSource == NULL) return E_INVALIDARG; T* pT = (T*) this; ATLASSERT(pT->m_spUnkSite != NULL); return pT->m_spUnkSite->QueryInterface(riid, (void**)ppDataSource); } }; // IOpenRowsetImpl template class IOpenRowsetImpl : public IOpenRowset { public: ATLPREFAST_SUPPRESS(6387) template HRESULT CreateRowset( _Inout_opt_ IUnknown* pUnkOuter, _In_opt_ DBID *pTableID, _In_opt_ DBID *pIndexID, _In_ REFIID riid, _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[], _Deref_out_ IUnknown** ppRowset, _In_ RowsetClass*& pRowsetObj) { ATLTRACE(atlTraceDBProvider, 2, _T("IOpenRowsetImpl::CreateRowset\n")); HRESULT hr, hrProps = S_OK; if (ppRowset != NULL) *ppRowset = NULL; if ((pUnkOuter != NULL) && !InlineIsEqualUnknown(riid)) return DB_E_NOAGGREGATION; CComPolyObject* pPolyObj; if (FAILED(hr = CComPolyObject::CreateInstance(pUnkOuter, &pPolyObj))) return hr; // Ref the created COM object and Auto release it on failure CComPtr spUnk; hr = pPolyObj->QueryInterface(&spUnk); if (FAILED(hr)) { delete pPolyObj; // must hand delete as it is not ref'd return hr; } // Get a pointer to the Rowset instance pRowsetObj = &(pPolyObj->m_contained); hr = pRowsetObj->FInit(); if (FAILED(hr)) return hr; hr = pRowsetObj->SetPropertiesArgChk(cPropertySets, rgPropertySets); if (FAILED(hr)) return hr; const GUID* ppGuid[1]; ppGuid[0] = &DBPROPSET_ROWSET; // Call SetProperties. The true in the last parameter indicates // the special behavior that takes place on rowset creation (i.e. // it succeeds as long as any of the properties were not marked // as DBPROPS_REQUIRED. hrProps = pRowsetObj->SetProperties(0, cPropertySets, rgPropertySets, 1, ppGuid, true); if (FAILED(hrProps)) return hrProps; CComPtr spOuterUnk; hr = ((SessionClass*)this)->QueryInterface(__uuidof(IUnknown), (void**)&spOuterUnk); if (FAILED(hr)) { return hr; } hr = pRowsetObj->SetSite(spOuterUnk); if (FAILED(hr)) { return hr; } hr = pRowsetObj->SetCommandText(pTableID, pIndexID); if (FAILED(hr)) return hr; DBROWCOUNT cRowsAffected; // Check to make sure we set any 'post' properties based on the riid // requested. if (FAILED(pRowsetObj->OnInterfaceRequested(riid))) return hr; HRESULT hrExecute; if (FAILED(hrExecute = pRowsetObj->Execute(NULL, &cRowsAffected))) return hrExecute; /* CComVariant varMaxRows; if (SUCCEEDED(pRowsetObj->GetPropValue(&DBPROPSET_ROWSET, DBPROP_MAXROWS, &varMaxRows))) { if( varMaxRows.lVal > 0 ) { if( pRowsetObj->m_rgRowData.GetCount() > (size_t)varMaxRows.lVal ) { pRowsetObj->m_rgRowData.RemoveAt( varMaxRows.lVal, pRowsetObj->m_rgRowData.GetCount() - varMaxRows.lVal ); } } } */ if (InlineIsEqualGUID(riid, IID_NULL)) { return E_NOINTERFACE; } else { if (ppRowset == NULL) //return (hrProps == DB_S_ERRORSOCCURRED) ? DB_E_ERRORSOCCURRED : hr; return hrProps; hr = pPolyObj->QueryInterface(riid, (void**)ppRowset); } if (FAILED(hr)) { *ppRowset = NULL; return hr; } return (hrProps == DB_S_ERRORSOCCURRED && hrExecute != DB_S_STOPLIMITREACHED) ? hrProps : hrExecute; } ATLPREFAST_UNSUPPRESS() }; // IColumnsInfoImpl template class ATL_NO_VTABLE IColumnsInfoImpl : public IColumnsInfo, public CDBIDOps { public: HRESULT CheckCommandText(_Inout_ IUnknown* pUnkThis) { HRESULT hr = E_FAIL; CComPtr spText; if (SUCCEEDED(hr = pUnkThis->QueryInterface(__uuidof(ICommandText), (void**)&spText))) { LPOLESTR szCommand; hr = spText->GetCommandText(NULL, &szCommand); if (SUCCEEDED(hr)) CoTaskMemFree(szCommand); } return hr; } OUT_OF_LINE HRESULT InternalGetColumnInfo( _Out_ DBORDINAL *pcColumns, _Out_ _Deref_post_cap_(*pcColumns) ATLCOLUMNINFO** ppInfo) { ATLENSURE_RETURN(ppInfo != NULL); T* pT = (T*) this; if (pT->CheckCommandText(pT->GetUnknown()) == DB_E_NOCOMMAND) return DB_E_NOCOMMAND; *ppInfo = T::GetColumnInfo(pT, pcColumns); return S_OK; } ATLPREFAST_SUPPRESS(6387) STDMETHOD(GetColumnInfo)( _Out_ DBORDINAL *pcColumns, _Deref_out_ DBCOLUMNINFO **prgInfo, _Deref_out_z_ OLECHAR **ppStringsBuffer) { ATLTRACE(atlTraceDBProvider, 2, _T("IColumnsInfoImpl::GetColumnInfo\n")); if (pcColumns == NULL || prgInfo == NULL || ppStringsBuffer == NULL) { if (prgInfo != NULL) *prgInfo = NULL; if (ppStringsBuffer != NULL) *ppStringsBuffer = NULL; if (pcColumns != NULL) *pcColumns = NULL; return E_INVALIDARG; } // NULL out pointers in case of an error *prgInfo = NULL; *ppStringsBuffer = NULL; *pcColumns = 0; ATLCOLUMNINFO* pInfo; HRESULT hr = InternalGetColumnInfo(pcColumns, &pInfo); if (FAILED(hr)) return hr; *prgInfo = (DBCOLUMNINFO*)::ATL::AtlCoTaskMemCAlloc(*pcColumns, static_cast(sizeof(DBCOLUMNINFO))); if (*prgInfo != NULL) { ULONG cwRequired; DBORDINAL iCol; for (iCol = 0, cwRequired = 0; iCol < *pcColumns; iCol++) { (*prgInfo)[iCol].pwszName = pInfo[iCol].pwszName; (*prgInfo)[iCol].pTypeInfo = pInfo[iCol].pTypeInfo; (*prgInfo)[iCol].iOrdinal = pInfo[iCol].iOrdinal; (*prgInfo)[iCol].dwFlags = pInfo[iCol].dwFlags; (*prgInfo)[iCol].ulColumnSize = pInfo[iCol].ulColumnSize; (*prgInfo)[iCol].wType = pInfo[iCol].wType; (*prgInfo)[iCol].bPrecision = pInfo[iCol].bPrecision; (*prgInfo)[iCol].bScale = pInfo[iCol].bScale; (*prgInfo)[iCol].columnid = pInfo[iCol].columnid; if (pInfo[iCol].pwszName) { cwRequired += static_cast(wcslen(pInfo[iCol].pwszName) + 1); } } *ppStringsBuffer = (OLECHAR*)::ATL::AtlCoTaskMemCAlloc(cwRequired, static_cast(sizeof(OLECHAR))); if (*ppStringsBuffer) { DBORDINAL iColStrings; size_t iOffset; for (iColStrings = 0, iOffset = 0; iColStrings < *pcColumns; iColStrings++) { if (pInfo[iColStrings].pwszName) { if(!ocscpy_s(*ppStringsBuffer + iOffset, cwRequired-iOffset, pInfo[iColStrings].pwszName)) { return E_FAIL; } (*prgInfo)[iColStrings].pwszName = *ppStringsBuffer + iOffset; if ((pInfo[iColStrings].columnid.eKind == DBKIND_GUID_NAME || pInfo[iColStrings].columnid.eKind == DBKIND_NAME || pInfo[iColStrings].columnid.eKind == DBKIND_PGUID_NAME)) { (*prgInfo)[iColStrings].columnid.uName.pwszName = *ppStringsBuffer + iOffset; } iOffset += wcslen(*ppStringsBuffer + iOffset) + 1; } } return S_OK; } else { ATLTRACE(atlTraceDBProvider, 0, _T("Failed to allocate string buffer\n")); CoTaskMemFree(*prgInfo); *prgInfo = NULL; *pcColumns = 0; return E_OUTOFMEMORY; } } else { ATLTRACE(atlTraceDBProvider, 0, _T("Failed to allocate ColumnInfo array\n")); *prgInfo = NULL; *pcColumns = 0; return E_OUTOFMEMORY; } } ATLPREFAST_UNSUPPRESS() STDMETHOD(MapColumnIDs)( _In_ DBORDINAL cColumnIDs, _In_count_(cColumnIDs) const DBID rgColumnIDs[], _Out_cap_(cColumnIDs) DBORDINAL rgColumns[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IColumnsInfoImpl::MapColumnIDs\n")); if ((cColumnIDs != 0 && rgColumnIDs == NULL) || rgColumns == NULL) return E_INVALIDARG; DBORDINAL cCols = 0; DBORDINAL cColsInError = 0; HRESULT hr = S_OK; ATLCOLUMNINFO* pInfo; for (DBORDINAL iColId = 0; iColId < cColumnIDs; iColId++) { hr = InternalGetColumnInfo(&cCols, &pInfo); if (hr == DB_E_NOCOMMAND) return hr; DBORDINAL iColMapCur = 0; BOOL bDone = FALSE; while(iColMapCur < cCols && !bDone) { hr = CompareDBIDs(&(pInfo[iColMapCur].columnid), &(rgColumnIDs[iColId])); bDone = (hr == S_OK || FAILED(hr)); if (hr == S_OK) rgColumns[iColId] = pInfo[iColMapCur].iOrdinal; iColMapCur++; } if (!bDone || FAILED(hr)) { rgColumns[iColId] = DB_INVALIDCOLUMN; cColsInError++; } } if (cColsInError > 0 && cColumnIDs == cColsInError) return DB_E_ERRORSOCCURRED; if (cColsInError > 0 && cColsInError < cColumnIDs) return DB_S_ERRORSOCCURRED; return S_OK; } }; //IConvertTypeImpl template class ATL_NO_VTABLE IConvertTypeImpl : public IConvertType, public CConvertHelper { public: HRESULT InternalCanConvert( _In_ DBTYPE wFromType, _In_ DBTYPE wToType, _In_ DBCONVERTFLAGS dwConvertFlags, _In_ bool bIsCommand, _In_ bool bHasParamaters, _Inout_ IObjectWithSite* pSite) { // Determine if new 2.x flags are valid if((dwConvertFlags & ~(DBCONVERTFLAGS_ISLONG | DBCONVERTFLAGS_ISFIXEDLENGTH | DBCONVERTFLAGS_FROMVARIANT)) != DBCONVERTFLAGS_COLUMN && (dwConvertFlags & ~(DBCONVERTFLAGS_ISLONG | DBCONVERTFLAGS_ISFIXEDLENGTH | DBCONVERTFLAGS_FROMVARIANT)) != DBCONVERTFLAGS_PARAMETER ) return DB_E_BADCONVERTFLAG; // If the convert flags are for DBCONVERTFLAGS_FROMVARIANT, check to see // that the type is a variant type if (dwConvertFlags & DBCONVERTFLAGS_FROMVARIANT) { if ((wFromType == DBTYPE_BYTES) || (wFromType == DBTYPE_STR) || (wFromType == DBTYPE_WSTR) || (wFromType == DBTYPE_NUMERIC) || (wFromType == DBTYPE_UDT) || (wFromType == DBTYPE_DBDATE) || (wFromType == DBTYPE_DBTIME) || (wFromType == DBTYPE_DBTIMESTAMP) || (wFromType == DBTYPE_HCHAPTER) || (wFromType == DBTYPE_PROPVARIANT) || (wFromType == DBTYPE_VARNUMERIC)) return DB_E_BADTYPE; } // Note, if the convert flag is either ISLONG or ISFIXEDLENGTH, then we should // make sure we are not dealing with an OLE DB 1.x provider. However, since // we default to 2.x providers, we don't check this. If you, change the // DBPROP_PROVIDEROLEDBVER property in the DATASOURCEINFO group, you need to // check the property value and return a DB_E_BADCONVERTFLAG if it is a 1.x // provider. // Do we have ISLONG on a fixed length data type? DBTYPE dbtype = (DBTYPE) (wFromType & ~(DBTYPE_BYREF|DBTYPE_VECTOR|DBTYPE_ARRAY|DBTYPE_RESERVED)); if ((dwConvertFlags & DBCONVERTFLAGS_ISLONG) && (dbtype != DBTYPE_WSTR && dbtype != DBTYPE_STR && dbtype != DBTYPE_BYTES && dbtype != DBTYPE_VARNUMERIC)) return DB_E_BADCONVERTFLAG; DBCONVERTFLAGS dwBaseFlags = (DBCONVERTFLAGS)(dwConvertFlags & ~(DBCONVERTFLAGS_ISLONG | DBCONVERTFLAGS_ISFIXEDLENGTH | DBCONVERTFLAGS_FROMVARIANT)); // Check if this should be an & or an == if (dwBaseFlags == DBCONVERTFLAGS_PARAMETER) { // In the case where we are a rowset and ask for a parameter // conversion, return DB_E_BADCONVERTFLAG if (!bIsCommand) return DB_E_BADCONVERTFLAG; // In the case where we are a command and ask for a parameter // conversion and ICommandWithParameters is not supported, return // DB_E_BADCONVERTFLAG. We used to return S_FALSE, but spec says // return DB_E_BADCONVERTFLAG if not supported. if (!bHasParamaters) return DB_E_BADCONVERTFLAG; } // If we deal with a command and the user asks for a conversion on a rowset // the DBPROP_ROWSETCONVERSIONSONCOMMAND must be supported and set to TRUE. if (bIsCommand && (dwBaseFlags == DBCONVERTFLAGS_COLUMN)) { CDBPropIDSet set(DBPROPSET_DATASOURCEINFO); if(!set.AddPropertyID(DBPROP_ROWSETCONVERSIONSONCOMMAND)) { return E_FAIL; } DBPROPSET* pPropSet = NULL; ULONG ulPropSet = 0; // Get a pointer into the session CComPtr spDataSource; CComPtr spProps; // if any of these calls fail, we're either unable to retrieve the // property or it is unsupported. Since the property is only on // the data source object, we use the IObjectWithSite interface to // get the session object and then the GetDataSource method to get // the data source object itself. if (FAILED(pSite->GetSite(__uuidof(IGetDataSource), (void**)&spDataSource))) return DB_E_BADCONVERTFLAG; if (FAILED(spDataSource->GetDataSource(__uuidof(IDBProperties), (IUnknown**)&spProps))) return DB_E_BADCONVERTFLAG; if (FAILED(spProps->GetProperties(1, &set, &ulPropSet, &pPropSet))) return DB_E_BADCONVERTFLAG; if (pPropSet != NULL) { CComVariant var = pPropSet->rgProperties[0].vValue; CoTaskMemFree(pPropSet->rgProperties); CoTaskMemFree(pPropSet); if (var.boolVal == ATL_VARIANT_FALSE) return DB_E_BADCONVERTFLAG; } } HRESULT hr = E_FAIL; if (m_spConvert != NULL) { hr = m_spConvert->CanConvert(wFromType, wToType); if (hr == E_INVALIDARG) { // Data Conversion library said the types specified were invalid // however, in OLE DB 2.X, the value for this changed from // E_INVALIDARG to S_FALSE hr = S_FALSE; } } return hr; } STDMETHOD(CanConvert)( _In_ DBTYPE wFromType, _In_ DBTYPE wToType, _In_ DBCONVERTFLAGS dwConvertFlags) { ATLTRACE(atlTraceDBProvider, 2, _T("IConvertTypeImpl::CanConvert\n")); T* pT = (T*)this; return pT->InternalCanConvert(wFromType, wToType, dwConvertFlags, pT->m_bIsCommand, pT->m_bHasParamaters, pT); } }; template class ATL_NO_VTABLE ICommandPropertiesImpl : public ICommandProperties, public CUtlProps { public: typedef PropClass _PropClass; STDMETHOD(GetProperties)( _In_ const ULONG cPropertyIDSets, _In_count_(cPropertyIDSets) const DBPROPIDSET rgPropertyIDSets[], _Out_ ULONG *pcPropertySets, _Out_ _Deref_post_opt_cap_(*pcPropertySets) DBPROPSET **prgPropertySets) { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandPropertiesImpl::GetProperties\n")); T* pT; pT = static_cast(this); m_dwFlags |= ARGCHK_PROPERTIESINERROR; HRESULT hr = GetPropertiesArgChk(cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets); if(SUCCEEDED(hr)) { // Scan property sets to allow user defined properies ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG cSets = (ULONG)(ULONG_PTR)pT->_GetPropSet(NULL, &ulPropElems); CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = pT->_GetPropSet(&ulPropSets, &ulPropElems, pSetA); typedef const GUID* PCGUID; for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::GetProperties(cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets, ulPropInits, ppGuid); } m_dwFlags |= ~ARGCHK_PROPERTIESINERROR; return hr; } STDMETHOD(SetProperties)( _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[]) { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandPropertiesImpl::SetProperties\n")); T* pT = (T*)this; if (pT->m_cRowsetsOpen > 0) return DB_E_OBJECTOPEN; // Don't allow property sets on an open rowset HRESULT hr = SetPropertiesArgChk(cPropertySets, rgPropertySets); if(SUCCEEDED(hr)) { // Scan property sets to allow user defined properies ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG cSets = (ULONG)(ULONG_PTR)pT->_GetPropSet(NULL, &ulPropElems); CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = pT->_GetPropSet(&ulPropSets, &ulPropElems, pSetA); typedef const GUID* PCGUID; for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::SetProperties(0, cPropertySets, rgPropertySets, ulPropInits, ppGuid); } return hr; } }; template class ATL_NO_VTABLE ICommandImpl : public CommandBase { public: ICommandImpl() { m_bIsExecuting = FALSE; m_bCancelWhenExecuting = TRUE; m_bCancel = FALSE; } HRESULT CancelExecution() { T* pT = (T*)this; pT->Lock(); m_bCancel = TRUE; pT->Unlock(); return S_OK; } STDMETHOD(Cancel)() { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandImpl::Cancel\n")); HRESULT hr = S_OK; T* pT = (T*)this; if (m_bIsExecuting && m_bCancelWhenExecuting) { hr = pT->CancelExecution(); return hr; } if (m_bIsExecuting && !m_bCancelWhenExecuting) hr = DB_E_CANTCANCEL; return hr; } STDMETHOD(GetDBSession)( _In_ REFIID riid, _Deref_out_ IUnknown** ppSession) { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandImpl::GetDBSession\n")); if( ppSession == NULL ) return E_INVALIDARG; T* pT = (T*)this; ATLASSERT(pT->m_spUnkSite != NULL); return pT->m_spUnkSite->QueryInterface(riid, (void**) ppSession); } ATLPREFAST_SUPPRESS(6387) template HRESULT CreateRowset( _Inout_opt_ IUnknown* pUnkOuter, _In_ REFIID riid, _In_ DBPARAMS* pParams, _Out_ DBROWCOUNT* pcRowsAffected, _Deref_opt_out_ IUnknown** ppRowset, _Inout_ RowsetClass*& pRowsetObj) { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandImpl::CreateRowset\n")); HRESULT hr; T* pT = (T*)this; if (pT->m_strCommandText.Length() == 0) { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandImpl::No command text specified.\n")); return DB_E_NOCOMMAND; } if (InlineIsEqualGUID(IID_NULL, riid)) { ATLTRACE(atlTraceDBProvider, 2, _T("IID_NULL was specified in Execute, returning S_OK")); return S_OK; } if (ppRowset != NULL) *ppRowset = NULL; else return E_INVALIDARG; if ((pUnkOuter != NULL) && !InlineIsEqualUnknown(riid)) return DB_E_NOAGGREGATION; CComPolyObject* pPolyObj; if (FAILED(hr = CComPolyObject::CreateInstance(pUnkOuter, &pPolyObj))) return hr; // Ref the created COM object and Auto release it on failure CComPtr spUnk; hr = pPolyObj->QueryInterface(&spUnk); if (FAILED(hr)) { delete pPolyObj; // must hand delete as it is not ref'd return hr; } // Get a pointer to the Rowset instance pRowsetObj = &(pPolyObj->m_contained); if (FAILED(hr = pRowsetObj->FInit(pT))) return hr; CComPtr spOuterUnk; hr = pT->QueryInterface(__uuidof(IUnknown), (void**)&spOuterUnk); if (FAILED(hr)) { return hr; } hr = pRowsetObj->SetSite(spOuterUnk); if (FAILED(hr)) { return hr; } pRowsetObj->m_strCommandText = pT->m_strCommandText; // Check to make sure we set any 'post' properties based on the riid // requested. Do this before calling Execute in case provider has // property specific processing. if (FAILED(pRowsetObj->OnInterfaceRequested(riid))) return hr; POSITION pos = pT->m_rgBindings.GetStartPosition(); while( pos != NULL ) { T::_BindingVector::CPair *pPair = pT->m_rgBindings.GetNext(pos); ATLENSURE_RETURN( pPair != NULL ); T::_BindType* pBind = NULL; T::_BindType* pBindSrc = NULL; ATLTRY(pBind = new T::_BindType); CAutoPtr amr(pBind); if (pBind == NULL) { ATLTRACE(atlTraceDBProvider, 2, _T("Failed to allocate memory for new Binding\n")); return E_OUTOFMEMORY; } pBindSrc = pPair->m_value; if (pBindSrc == NULL) { ATLTRACE(atlTraceDBProvider, 2, _T("The map appears to be corrupted, failing!!\n")); return E_FAIL; } _ATLTRY { pRowsetObj->m_rgBindings.SetAt(pPair->m_key, pBind); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); ATLTRACE(atlTraceDBProvider, 2, _T("Failed to add hAccessor to Map\n")); return E_OUTOFMEMORY; } if (pBindSrc->cBindings) { pBind->pBindings =NULL; ATLTRY(pBind->pBindings = new DBBINDING[pBindSrc->cBindings]) if (pBind->pBindings == NULL) { ATLTRACE(atlTraceDBProvider, 2, _T("Failed to Allocate dbbinding Array\n")); // We added it, must now remove on failure pRowsetObj->m_rgBindings.RemoveKey(pPair->m_key); return E_OUTOFMEMORY; } } else { pBind->pBindings = NULL; // NULL Accessor } pBind->dwAccessorFlags = pBindSrc->dwAccessorFlags; pBind->cBindings = pBindSrc->cBindings; pBind->dwRef = 1; if (pBind->pBindings != NULL) Checked::memcpy_s(pBind->pBindings, pBind->cBindings*sizeof(DBBINDING), pBindSrc->pBindings, pBindSrc->cBindings*sizeof(DBBINDING)); amr.Detach(); } // Execute the command. // By default, we'll always return a rowset. If you do not wish to // return a rowset, set this value to false in your Execute function. // If you return false, we will not return a rowset pointer, regardless // of whether the user requests one. m_bRowsetReturned = true; HRESULT hrExecute; if (FAILED(hrExecute = pRowsetObj->Execute(pParams, pcRowsAffected))) return hrExecute; if (InlineIsEqualGUID(riid, IID_NULL) || ppRowset == NULL) { if (ppRowset != NULL) *ppRowset = NULL; return hrExecute; } if (m_bRowsetReturned != false) hr = pPolyObj->QueryInterface(riid, (void**)ppRowset); else return hr; if (FAILED(hr)) return hr; return hrExecute; } ATLPREFAST_UNSUPPRESS() unsigned m_bIsExecuting:1; unsigned m_bCancelWhenExecuting:1; unsigned m_bCancel:1; unsigned m_bRowsetReturned:1; }; template class ATL_NO_VTABLE ICommandTextImpl : public ICommandImpl { public: ICommandTextImpl() { m_guidDialect = DBGUID_DEFAULT; m_cRowsetsOpen = 0; } STDMETHOD(GetCommandText)( _Inout_opt_ GUID* pguidDialect, _Deref_out_z_ LPOLESTR* ppwszCommand) { ATLTRACE(atlTraceDBProvider, 2, _T("ICommandTextImpl::GetCommandText\n")); T* pT = (T*)this; T::ObjectLock cab(pT); GUID guidOrig = IID_NULL; if (pguidDialect != NULL) { guidOrig = *pguidDialect; *pguidDialect = GUID_NULL; } if (ppwszCommand == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("ICommandTextImpl::GetCommandText Bad Command buffer\n")); return E_INVALIDARG; } if (m_strCommandText.m_str == NULL || *(m_strCommandText.m_str) == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("ICommandTextImpl::GetCommandText Bad Command buffer\n")); return DB_E_NOCOMMAND; } *ppwszCommand = AtlAllocTaskWideString(m_strCommandText.m_str); if( ppwszCommand != NULL ) { HRESULT hrDialect = S_OK; if ( pguidDialect != NULL) { if(!InlineIsEqualGUID(guidOrig, m_guidDialect)) hrDialect = DB_S_DIALECTIGNORED; *pguidDialect = m_guidDialect; } return hrDialect; } else return E_OUTOFMEMORY; } STDMETHOD(SetCommandText)( _In_ REFGUID rguidDialect, _In_z_ LPCOLESTR pwszCommand) { _ATLTRY { T* pT = (T*)this; T::ObjectLock cab(pT); ATLTRACE(atlTraceDBProvider, 2, _T("ICommandTextImpl::SetCommandText\n")); if (m_cRowsetsOpen > 0) return DB_E_OBJECTOPEN; if (InlineIsEqualGUID(rguidDialect, DBGUID_SQL)) { // Get a pointer into the session CComPtr spDataSource; CComPtr spProps; if( SUCCEEDED( pT->GetSite( __uuidof(IGetDataSource), (void**)&spDataSource ) ) && SUCCEEDED( spDataSource->GetDataSource( __uuidof(IDBProperties), (IUnknown**)&spProps ) ) ) { CDBPropIDSet set(DBPROPSET_DATASOURCEINFO); if(!set.AddPropertyID(DBPROP_SQLSUPPORT)) { return E_FAIL; } DBPROPSET* pPropSet = NULL; ULONG ulPropSet = 0; HRESULT hr = spProps->GetProperties(1, &set, &ulPropSet, &pPropSet); if( SUCCEEDED(hr) && pPropSet != NULL ) { CComVariant var = pPropSet->rgProperties[0].vValue; CoTaskMemFree(pPropSet->rgProperties); CoTaskMemFree(pPropSet); if( var.lVal == DBPROPVAL_SQL_NONE ) return DB_E_BADCONVERTFLAG; } else return DB_E_BADCONVERTFLAG; } return DB_E_BADCONVERTFLAG; } if (InlineIsEqualGUID(rguidDialect, GUID_NULL)) return DB_E_DIALECTNOTSUPPORTED; m_guidDialect = rguidDialect; m_strCommandText = pwszCommand; } _ATLCATCHALL() { return E_FAIL; } return S_OK; } LONG m_cRowsetsOpen; CComBSTR m_strCommandText; GUID m_guidDialect; }; // ISessionPropertiesImpl template class ATL_NO_VTABLE ISessionPropertiesImpl : public ISessionProperties, public CUtlProps { public: typedef PropClass _PropClass; STDMETHOD(GetProperties)( _In_ ULONG cPropertyIDSets, _In_count_(cPropertyIDSets) const DBPROPIDSET rgPropertyIDSets[], _Out_ ULONG *pcPropertySets, _Out_ _Deref_post_opt_cap_(*pcPropertySets) DBPROPSET **prgPropertySets) { ATLTRACE(atlTraceDBProvider, 2, _T("ISessionPropertiesImpl::GetProperties\n")); T* pT; pT = static_cast(this); // You can't retrieve PROPERTIESINERROR here (it would be processed // like any other property set. Therefore, turn checking off m_dwFlags |= ~ARGCHK_PROPERTIESINERROR; HRESULT hr = GetPropertiesArgChk(cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets); if(SUCCEEDED(hr)) { // Scan property sets to allow user defined properies ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG cSets = (ULONG)(ULONG_PTR)pT->_GetPropSet(NULL, &ulPropElems); CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = pT->_GetPropSet(&ulPropSets, &ulPropElems, pSetA); typedef const GUID* PCGUID; for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::GetProperties(cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets, ulPropInits, ppGuid); } return hr; } STDMETHOD(SetProperties)( _In_ ULONG cPropertySets, _In_count_(cPropertySets) DBPROPSET rgPropertySets[]) { ATLTRACE(atlTraceDBProvider, 2, _T("ISessionPropertiesImpl::SetProperties")); T* pT; pT = static_cast(this); HRESULT hr = SetPropertiesArgChk(cPropertySets, rgPropertySets); if(SUCCEEDED(hr)) { // Scan property sets to allow user defined properies ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG cSets = (ULONG)(ULONG_PTR)pT->_GetPropSet(NULL, &ulPropElems); CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = pT->_GetPropSet(&ulPropSets, &ulPropElems, pSetA); typedef const GUID* PCGUID; for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::SetProperties(0, cPropertySets, rgPropertySets, ulPropInits, ppGuid); } return hr; } }; // Implementation Class template class ATL_NO_VTABLE IAccessorImplBase : public IAccessor { public: STDMETHOD(CreateAccessor)( _In_ DBACCESSORFLAGS dwAccessorFlags, _In_ DBCOUNTITEM cBindings, _In_count_(cBindings) const DBBINDING rgBindings[], _In_ DBLENGTH /*cbRowSize*/, _Out_ HACCESSOR *phAccessor, _Out_cap_(cBindings) DBBINDSTATUS rgStatus[]) { if (!(dwAccessorFlags & DBACCESSOR_PARAMETERDATA) && !(dwAccessorFlags & DBACCESSOR_ROWDATA)) return DB_E_BADACCESSORFLAGS; if (dwAccessorFlags == DBACCESSOR_INVALID) return DB_E_BADACCESSORFLAGS; if (dwAccessorFlags > 0x000F) return DB_E_BADACCESSORFLAGS; CAutoPtr pBind; ATLTRY(pBind . Attach ( new BindType ) ) if (pBind == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("Failed to allocate ATL Binding struct\n")); return E_OUTOFMEMORY; } if (cBindings) { pBind->pBindings =NULL; ATLTRY(pBind->pBindings = new DBBINDING[cBindings]) if (pBind->pBindings == NULL) { return E_OUTOFMEMORY; } } else pBind->pBindings = NULL; // NULL Accessor pBind->dwAccessorFlags = dwAccessorFlags; pBind->cBindings = cBindings; pBind->dwRef = 1; if (pBind->pBindings) Checked::memcpy_s(pBind->pBindings, pBind->cBindings*sizeof(DBBINDING), rgBindings, cBindings*sizeof(DBBINDING)); DBBINDSTATUS status = DBBINDSTATUS_OK; memset (rgStatus, status, sizeof(DBBINDSTATUS)*cBindings); *phAccessor = (ULONG_PTR)pBind.Detach(); return S_OK; } BOOL HasFlag( _In_ DBTYPE dbToCheck, _In_ DBTYPE dbCombo) { return ( (dbToCheck & dbCombo) == dbCombo ); } HRESULT ValidateBindings( _In_ DBCOUNTITEM cBindings, _In_count_(cBindings) const DBBINDING rgBindings[], _Out_cap_(cBindings) DBBINDSTATUS rgStatus[], _In_ bool bHasBookmarks) { HRESULT hr = S_OK; for (ULONG iBinding = 0; iBinding < cBindings; iBinding++) { const DBBINDING& rBindCur = rgBindings[iBinding]; if (rBindCur.iOrdinal == 0) { if (!m_bIsCommand && !bHasBookmarks) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADORDINAL; continue; } } if (rBindCur.dwPart == 0) // nothing to bind to { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } if (HasFlag(rBindCur.wType, (DBTYPE_BYREF | DBTYPE_ARRAY))) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } if (HasFlag(rBindCur.wType, (DBTYPE_BYREF | DBTYPE_VECTOR))) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } if (HasFlag(rBindCur.wType, (DBTYPE_VECTOR | DBTYPE_ARRAY))) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } if (rBindCur.wType == DBTYPE_NULL || rBindCur.wType == DBTYPE_EMPTY) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } if (HasFlag(rBindCur.wType, DBTYPE_RESERVED)) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } // DBTYPE_BYREF must be accompanied by other valid type if (rBindCur.wType == (DBTYPE_BYREF | DBTYPE_EMPTY) || rBindCur.wType == (DBTYPE_BYREF | DBTYPE_NULL) || rBindCur.wType == DBTYPE_BYREF) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } // If someone attempts to set DBBINDFLAG_HTML on a non-string // column, generate a BADBINDINFO error. if (rBindCur.wType != DBTYPE_STR && rBindCur.wType != DBTYPE_WSTR && rBindCur.dwFlags & DBBINDFLAG_HTML) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } // the dwFlags parameter must be 0 or DBBINDFLAG_HTML, // all other values will return an error. if (rBindCur.dwFlags != 0 && rBindCur.dwFlags != DBBINDFLAG_HTML) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } if (rBindCur.dwMemOwner == DBMEMOWNER_PROVIDEROWNED) { BOOL bIsPointerType = HasFlag(rBindCur.wType, DBTYPE_BYREF) || HasFlag(rBindCur.wType, DBTYPE_VECTOR) || HasFlag(rBindCur.wType, DBTYPE_ARRAY) || HasFlag( (DBTYPE) (~(DBTYPE_BYREF) & rBindCur.wType), DBTYPE_BSTR); if (!bIsPointerType) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } } else if (rBindCur.dwMemOwner != DBMEMOWNER_CLIENTOWNED) { // the dwMemOwner flag is supposed to be ignored for reference accessors // (see the description of DBBINDING structure in MSDN), otherwise dwMemOwner // should have a value of DBMEMOWNER_CLIENTOWNED or DBMEMOWNER_PROVIDEROWNED if (!HasFlag(rBindCur.wType, DBTYPE_BYREF)) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } } } return hr; } unsigned m_bIsCommand:1; unsigned m_bHasParamaters:1; unsigned m_bIsChangeable:1; }; // IAccessorImpl template > class ATL_NO_VTABLE IAccessorImpl : public IAccessorImplBase { public: typedef BindType _BindType; typedef BindingVector _BindingVector; IAccessorImpl() { m_bIsCommand = FALSE; m_bHasParamaters = FALSE; m_bIsChangeable = FALSE; } OUT_OF_LINE HRESULT InternalFinalConstruct(_In_opt_ IUnknown* /*pUnkThis*/) { CComPtr spCommand; CComPtr spCommandWithParameters; T* pT = (T*)this; pT->_InternalQueryInterface(IID_ICommand,(void **) &spCommand); if (spCommand !=NULL) // It's a command { m_bIsCommand = TRUE; pT->_InternalQueryInterface(IID_ICommandWithParameters, (void **) &spCommandWithParameters); m_bHasParamaters = spCommandWithParameters != NULL; } return S_OK; } HRESULT FinalConstruct() { T* pT = (T*)this; return InternalFinalConstruct(pT->GetUnknown()); } void FinalRelease() { #ifdef _DEBUG if (m_rgBindings.GetCount()) ATLTRACE(atlTraceDBProvider, 0, _T("IAccessorImpl::~IAccessorImpl Bindings still in vector, removing\n")); #endif //_DEBUG while (m_rgBindings.GetCount()) ReleaseAccessor((HACCESSOR)m_rgBindings.GetKeyAt(m_rgBindings.GetStartPosition()), NULL); } STDMETHOD(AddRefAccessor)( _In_ HACCESSOR hAccessor, _Out_opt_ DBREFCOUNT *pcRefCount) { ATLTRACE(atlTraceDBProvider, 2, _T("IAccessorImpl::AddRefAccessor\n")); if (hAccessor == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("AddRefAccessor : Bad hAccessor\n")); return DB_E_BADACCESSORHANDLE; } BindType* pBind; if( ! m_rgBindings.Lookup(hAccessor, pBind ) ) return DB_E_BADACCESSORHANDLE; ATLENSURE_RETURN( pBind ); ULONG cRefCount = T::_ThreadModel::Increment((LONG*)&pBind->dwRef); if (pcRefCount != NULL) *pcRefCount = cRefCount; return S_OK; } OUT_OF_LINE ATLCOLUMNINFO* ValidateHelper( _Out_ DBORDINAL* pcCols, _Inout_ CComPtr& rspConvert) { T* pT = (T*)this; rspConvert = pT->m_spConvert; return T::GetColumnInfo(pT, pcCols); } OUT_OF_LINE HRESULT ValidateBindingsFromMetaData( _In_ DBCOUNTITEM cBindings, _In_count_(cBindings) const DBBINDING rgBindings[], _Out_cap_(cBindings) DBBINDSTATUS rgStatus[], _In_ bool bHasBookmarks) { HRESULT hr = S_OK; DBORDINAL cCols; CComPtr spConvert; ATLCOLUMNINFO* pColInfo = ValidateHelper(&cCols, spConvert); ATLENSURE_RETURN(pColInfo != NULL); for (DBCOUNTITEM iBinding = 0; iBinding < cBindings; iBinding++) { const DBBINDING& rBindCur = rgBindings[iBinding]; DBORDINAL iOrdAdjusted; if (bHasBookmarks) iOrdAdjusted = rBindCur.iOrdinal; // Bookmarks start with ordinal 0 else iOrdAdjusted = rBindCur.iOrdinal - 1; // Non-bookmarks start w/ ordinal 1 if (rBindCur.iOrdinal > cCols) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADORDINAL; continue; } // If a binding specifies provider owned memory, and specifies type // X | BYREF, and the provider's copy is not X or X | BYREF, return // DBBINDSTATUS_BADBINDINFO if (rBindCur.dwMemOwner == DBMEMOWNER_PROVIDEROWNED) { if ((rBindCur.wType & DBTYPE_BYREF) != 0 && ((rBindCur.wType & (~DBTYPE_BYREF)) != (pColInfo[iOrdAdjusted].wType & (~DBTYPE_BYREF)))) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_BADBINDINFO; continue; } } ATLASSERT(spConvert != NULL); HRESULT hrConvert = spConvert->CanConvert(pColInfo[iOrdAdjusted].wType, rBindCur.wType); if (FAILED(hrConvert) || hrConvert == S_FALSE) { hr = DB_E_ERRORSOCCURRED; rgStatus[iBinding] = DBBINDSTATUS_UNSUPPORTEDCONVERSION; continue; } } return hr; } STDMETHOD(CreateAccessor)( _In_ DBACCESSORFLAGS dwAccessorFlags, _In_ DBCOUNTITEM cBindings, _In_count_(cBindings) const DBBINDING rgBindings[], _In_ DBLENGTH cbRowSize, _Out_ HACCESSOR *phAccessor, _Out_cap_(cBindings) DBBINDSTATUS rgStatus[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IAccessorImpl::CreateAccessor\n")); T* pT = (T*)this; T::ObjectLock cab(pT); if (!phAccessor) { ATLTRACE(atlTraceDBProvider, 0, _T("IAccessorImpl::CreateAccessor : Inavlid NULL Parameter for HACCESSOR*\n")); return E_INVALIDARG; } *phAccessor = NULL; if (cBindings != 0 && rgBindings == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("IAccessorImpl::CreateAccessor : Bad Binding array\n")); return E_INVALIDARG; } if (dwAccessorFlags & DBACCESSOR_PASSBYREF) { CComVariant varByRef; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_BYREFACCESSORS, &varByRef); if (FAILED(hr) || varByRef.boolVal == ATL_VARIANT_FALSE) return DB_E_BYREFACCESSORNOTSUPPORTED; } if (!m_bHasParamaters) { if (dwAccessorFlags & DBACCESSOR_PARAMETERDATA) return DB_E_BADACCESSORFLAGS; } // since our accessor does not provide any further restrictions or optimizations based // on the DBACCESSOR_OPTIMIZED flag, the flag will be ignored. In particular we will // not be returning this flag in the call to IAccessor::GetBindings. This way we will // be complient with the OLEDB specifications and we will not have to prevent the // client from creating additional accessors after the first row is fetched. DBACCESSORFLAGS dwMask = DBACCESSOR_OPTIMIZED; dwAccessorFlags &= ~dwMask; CComVariant varUpdate; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_UPDATABILITY, &varUpdate); m_bIsChangeable = (SUCCEEDED(hr) && (varUpdate.iVal & DBPROPVAL_UP_INSERT)); if (m_bIsCommand || !m_bIsChangeable) { if (cBindings == 0) // No NULL Accessors on the command return DB_E_NULLACCESSORNOTSUPPORTED; } CTempBuffer tmpBuffer; if (rgStatus == NULL && cBindings) // Create a fake status array rgStatus = tmpBuffer.Allocate(cBindings); // Validate the Binding passed bool bHasBookmarks = false; CComVariant varBookmarks; HRESULT hrLocal = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_BOOKMARKS, &varBookmarks); bHasBookmarks = (hrLocal == S_OK && varBookmarks.boolVal != ATL_VARIANT_FALSE); hr = ValidateBindings(cBindings, rgBindings, rgStatus, bHasBookmarks); if (FAILED(hr)) return hr; if (!m_bIsCommand) { hr = ValidateBindingsFromMetaData(cBindings, rgBindings, rgStatus, bHasBookmarks); if (FAILED(hr)) return hr; } hr = IAccessorImplBase::CreateAccessor(dwAccessorFlags, cBindings, rgBindings, cbRowSize, phAccessor,rgStatus); if (SUCCEEDED(hr)) { ATLASSERT(*phAccessor != NULL); BindType* pBind = (BindType*)*phAccessor; ATLENSURE_RETURN(pBind); _ATLTRY { m_rgBindings.SetAt((HACCESSOR)pBind, pBind); hr = S_OK; } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); hr = E_OUTOFMEMORY; } } return hr; } STDMETHOD(GetBindings)( _In_ HACCESSOR hAccessor, _Out_ DBACCESSORFLAGS *pdwAccessorFlags, _Out_ DBCOUNTITEM *pcBindings, _Out_opt_ _Deref_post_opt_cap_(*pcBindings) DBBINDING **prgBindings) { ATLTRACE(atlTraceDBProvider, 2, _T("IAccessorImpl::GetBindings\n")); // Zero output parameters in case of failure if (pdwAccessorFlags != NULL) *pdwAccessorFlags = NULL; if (pcBindings != NULL) *pcBindings = NULL; if (prgBindings != NULL) *prgBindings = NULL; // Check if any of the out params are NULL pointers if ((pdwAccessorFlags && pcBindings && prgBindings) == NULL) return E_INVALIDARG; BindType* pBind; bool bFound = m_rgBindings.Lookup((INT_PTR)hAccessor, pBind); HRESULT hr = DB_E_BADACCESSORHANDLE; if (bFound && pBind != NULL) { *pdwAccessorFlags = pBind->dwAccessorFlags; *pcBindings = pBind->cBindings; // Get NULL for NULL Accessor *prgBindings = (pBind->cBindings) ? (DBBINDING*)::ATL::AtlCoTaskMemCAlloc(*pcBindings, static_cast(sizeof(DBBINDING))) : NULL; if (*prgBindings == NULL && pBind->cBindings) // No Error if NULL Accessor return E_OUTOFMEMORY; Checked::memcpy_s(*prgBindings, *pcBindings * sizeof(DBBINDING), pBind->pBindings, *pcBindings * sizeof(DBBINDING)); hr = S_OK; } return hr; } STDMETHOD(ReleaseAccessor)( _In_ HACCESSOR hAccessor, _Out_opt_ DBREFCOUNT *pcRefCount) { ATLTRACE(atlTraceDBProvider, 2, _T("IAccessorImpl::ReleaseAccessor\n")); T::ObjectLock cab((T*)this); BindType* pBind; bool bFound = m_rgBindings.Lookup((INT_PTR)hAccessor, pBind); if (!bFound || pBind == NULL) return DB_E_BADACCESSORHANDLE; DBREFCOUNT cRefCount = T::_ThreadModel::Decrement((LONG*)&pBind->dwRef); if (pcRefCount != NULL) *pcRefCount = cRefCount; if (cRefCount == 0) { delete [] pBind->pBindings; delete pBind; return m_rgBindings.RemoveKey(hAccessor) ? S_OK : DB_E_BADACCESSORHANDLE; } return S_OK; } BindingVector m_rgBindings; }; #define BEGIN_PROVIDER_COLUMN_MAP(theClass) \ typedef theClass _Class; \ template \ _Ret_count_x_(*pcCols) static ATL::ATLCOLUMNINFO* GetColumnInfo( \ _In_opt_ _Post_bytecount_x_(sizeof(T)) T* pv, \ _Out_ DBORDINAL* pcCols) \ { \ UNREFERENCED_PARAMETER(pv); \ static ATL::ATLCOLUMNINFO _rgColumns [] = \ { #define SIZEOF_MEMBER(memberOf, member) \ sizeof(((memberOf*)0)->member) #define EXPANDGUID(guid) \ { guid.Data1, guid.Data2, guid.Data3, \ { guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7] } } #define PROVIDER_COLUMN_ENTRY_GN(name, ordinal, flags, colSize, dbtype, precision, scale, guid) \ { (LPOLESTR)name, (ITypeInfo*)NULL, (DBORDINAL)ordinal, (DBCOLUMNFLAGS)flags, (DBLENGTH)colSize, (DBTYPE)dbtype, (BYTE)precision, (BYTE)scale, { EXPANDGUID(guid), (DWORD)0, (LPOLESTR) name}, 0}, #define PROVIDER_COLUMN_ENTRY_EX(name, typeinfo, ordinal, flags, colSize, dbtype, precision, scale, guid, member) \ { \ (LPOLESTR)OLESTR(name), \ typeinfo, \ (DBORDINAL)ordinal, \ flags, \ colSize, \ dbtype, \ (BYTE)precision, \ (BYTE)scale, \ { \ EXPANDGUID(guid), \ (DWORD)DBKIND_NAME, \ (LPOLESTR)OLESTR(name) \ }, \ offsetof(_Class, member) \ }, #define PROVIDER_COLUMN_ENTRY(name, ordinal, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, (DBLENGTH)SIZEOF_MEMBER(_Class, member), ATL::_GetOleDBType(((_Class*)0)->member), 0, 0, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_PS(name, ordinal, precision, scale, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, (DBLENGTH)SIZEOF_MEMBER(_Class, member), ATL::_GetOleDBType(((_Class*)0)->member), precision, scale, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_LENGTH(name, ordinal, size, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, size, ATL::_GetOleDBType(((_Class*)0)->member), 0, 0, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_TYPE_LENGTH(name, ordinal, type, size, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, size, type, 0, 0, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_TYPE(name, ordinal, type, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, (DBLENGTH)SIZEOF_MEMBER(_Class, member), type, 0, 0, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_TYPE_PS(name, ordinal, type, precision, scale, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, (DBLENGTH)SIZEOF_MEMBER(_Class, member), type, precision, scale, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_FIXED(name, ordinal, type, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, DBCOLUMNFLAGS_ISFIXEDLENGTH, (DBLENGTH)SIZEOF_MEMBER(_Class, member), type, 0, 0, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_STR(name, ordinal, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, 0, (DBLENGTH)SIZEOF_MEMBER(_Class, member), DBTYPE_STR, 255, 255, GUID_NULL, member) #define PROVIDER_COLUMN_ENTRY_WSTR(name, ordinal, member) \ PROVIDER_COLUMN_ENTRY_EX(name, NULL, ordinal, 0, (DBLENGTH)SIZEOF_MEMBER(_Class, member), DBTYPE_WSTR, 255, 255, GUID_NULL, member) #define END_PROVIDER_COLUMN_MAP() \ }; *pcCols = sizeof(_rgColumns)/sizeof(ATL::ATLCOLUMNINFO); return _rgColumns;} class CDynColumnInfo: public CAtlArray { public: HRESULT Add( _In_z_ LPOLESTR szName, _In_ DBORDINAL ordinal, _In_ DBLENGTH colSize, _In_ DBTYPE type, _In_ BYTE precision, _In_ BYTE scale, _In_ DBBYTEOFFSET offset, _In_ DWORD flags = DBCOLUMNFLAGS_ISFIXEDLENGTH) { ATLCOLUMNINFO col; col.pwszName = szName; col.pTypeInfo = NULL; col.iOrdinal = ordinal; col.dwFlags = flags; col.ulColumnSize = colSize; col.wType = type; col.bPrecision = precision; col.bScale = scale; col.cbOffset = offset; memset(&(col.columnid), 0, sizeof(DBID)); col.columnid.uName.pwszName = (LPOLESTR)szName; _ATLTRY { CAtlArray::Add(col); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } return S_OK; } HRESULT AddString( _In_z_ LPOLESTR szName, _In_ DBORDINAL ordinal, _In_ DBLENGTH colSize, _In_ DBBYTEOFFSET offset) { return Add(szName,ordinal, colSize, DBTYPE_STR, 0xFF, 0xFF, offset); } }; // Implementation Class class CSimpleRow { public: typedef DBCOUNTITEM KeyType; CSimpleRow(_In_ DBCOUNTITEM iRowsetCur) { m_dwRef = 0; m_pData = NULL; m_iRowset = iRowsetCur; m_iOriginalRowset = iRowsetCur; // used for stronger identity tests m_status = 0; } ~CSimpleRow() { m_pData = NULL; // Data will be freed seperately } DWORD AddRefRow() { return CComObjectThreadModel::Increment((LPLONG)&m_dwRef); } DWORD ReleaseRow() { return CComObjectThreadModel::Decrement((LPLONG)&m_dwRef); } HRESULT Compare(_In_ CSimpleRow* pRow) { ATLENSURE_RETURN(pRow != NULL); return (m_iRowset == pRow->m_iRowset) ? S_OK : S_FALSE; } DWORD m_dwRef; void* m_pData; // NEW: For IRowsetChange & IRowsetUpdate DBPENDINGSTATUS m_status; // NEW: For IRowsetUpdate KeyType m_iOriginalRowset; // NEW: For IRowsetChange & IRowsetUpdate KeyType m_iRowset; }; template inline void SendColumnSetFailureNotification( _Inout_ _Prepost_bytecount_x_(sizeof(T)) T* pT, _In_ HROW hNotifyRow, _In_ typename T::_BindType* pBinding, _In_ CAtlArray& rgColumns) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } template inline void SendRowsFirstChangeFailureNotification( _Inout_ _Prepost_bytecount_x_(sizeof(T)) T* pT, _In_ RowClass* pRow, _In_ HROW *phNotifyRow, _In_ bool bDeferred) { ATLENSURE(pRow); if (bDeferred) { // Determine if we are really in a first row change if (pRow->m_status != DBPENDINGSTATUS_CHANGED && pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnRowChange(pT, 1, phNotifyRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_FAILEDTODO, TRUE); } } } template HRESULT TransferData( _In_ _Prepost_bytecount_x_(sizeof(T)) T* pT, _In_ bool bReading, _In_opt_ void* pData, _In_ RowClass* pRow, _In_opt_ MapClass* /*pMap*/, _In_ HACCESSOR hAccessor) { ATLTRACE(atlTraceDBProvider, 2, _T("TransferData\n")); bool bFailed = false; bool bSucceeded = false; HRESULT hr = S_OK; __if_exists(T::Fire_OnFieldChange) { CAtlArray rgColumns; HROW hNotifyRow = NULL; //HROW hNotifyRow = pT->m_rgRowHandles.ReverseLookup(pRow); { POSITION pos = pT->m_rgRowHandles.GetStartPosition(); while( pos != NULL ) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext( pos ); ATLASSUME( pPair != NULL ); if( pPair->m_value == pRow ) { hNotifyRow = pPair->m_key; break; } } } } __if_exists(T::Fire_OnRowChange) { // We need to send the DBREASON_ROW_FIRSTCHANGE notification's // SYNCHAFTER phase in this function. IFF. we're deferred and // we have a newly changed row. CComVariant varDeferred; bool bDeferred; hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetUpdate, &varDeferred); (FAILED(hr) || varDeferred.boolVal == ATL_VARIANT_FALSE) ? bDeferred = false : bDeferred = true; } // Check for a deleted row if( pRow->m_iRowset >= pT->m_rgRowData.GetCount() ) { __if_exists(T::Fire_OnFieldChange) { if( !bReading ) { SendRowsFirstChangeFailureNotification( pT, pRow, &hNotifyRow, bDeferred ); } } return DB_E_DELETEDROW; } // NOTE: This was checking against DBPENDINGSTATUS_DELETED. Instead, it // should check for DBPENDINGSTATUS_INVALIDROW (means a forced deleted // row). if (pRow->m_status == DBPENDINGSTATUS_INVALIDROW) { __if_exists(T::Fire_OnFieldChange) { if( !bReading ) { SendRowsFirstChangeFailureNotification( pT, pRow, &hNotifyRow, bDeferred ); } } return DB_E_DELETEDROW; } T::_BindType* pBinding; bool bFound = pT->m_rgBindings.Lookup((INT_PTR)hAccessor, pBinding); if (!bFound || pBinding == NULL) { __if_exists(T::Fire_OnFieldChange) { if( !bReading ) { SendRowsFirstChangeFailureNotification( pT, pRow, &hNotifyRow, bDeferred ); } } return DB_E_BADACCESSORHANDLE; } if (pData == NULL && pBinding->cBindings != 0) { __if_exists(T::Fire_OnFieldChange) { if( !bReading ) { SendRowsFirstChangeFailureNotification( pT, pRow, &hNotifyRow, bDeferred ); } } return E_INVALIDARG; } void* pDstData; void* pSrcData; if (bReading) { pDstData = pData; pSrcData = (void*)&(pT->m_rgRowData[(LONG)pRow->m_iRowset]); } else { pSrcData = pData; pDstData = (void*)&(pT->m_rgRowData[(LONG)pRow->m_iRowset]); } if (!bReading) { // Send the OKTODO notification __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { HRESULT hrNotify; for (DBORDINAL l=0; lcBindings; l++) { _ATLTRY { rgColumns.Add(pBinding->pBindings[l].iOrdinal); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_FAIL; } } hrNotify = pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { __if_exists(T::Fire_OnRowChange) { if (bDeferred) pT->Fire_OnRowChange(pT, 1, &hNotifyRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_FAILEDTODO, TRUE); return DB_E_CANCELED; } } hrNotify = pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { __if_exists(T::Fire_OnRowChange) { if (bDeferred) pT->Fire_OnRowChange(pT, 1, &hNotifyRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_FAILEDTODO, TRUE); return DB_E_CANCELED; } } hrNotify = pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { __if_exists(T::Fire_OnRowChange) { if (bDeferred) pT->Fire_OnRowChange(pT, 1, &hNotifyRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_FAILEDTODO, TRUE); return DB_E_CANCELED; } } } } __if_exists(T::Fire_OnRowChange) { if(bDeferred && pRow->m_status != DBPENDINGSTATUS_CHANGED && pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { HRESULT hrNotify = pT->Fire_OnRowChange(pT, 1, &hNotifyRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { __if_exists(T::Fire_OnFieldChange) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } return DB_E_CANCELED; } } } } DBORDINAL cCols; ATLCOLUMNINFO* pColInfo = T::GetColumnInfo(pT, &cCols); ATLENSURE_RETURN(pColInfo); for (DBORDINAL iBind =0; iBind < pBinding->cBindings; iBind++) { DBBINDING* pBindCur = &(pBinding->pBindings[iBind]); DBORDINAL iColInfo; for (iColInfo = 0; iColInfo < cCols && pBindCur->iOrdinal != pColInfo[iColInfo].iOrdinal; iColInfo++); if (iColInfo == cCols) { __if_exists(T::Fire_OnFieldChange) { if( !bReading ) { SendColumnSetFailureNotification( pT, hNotifyRow, pBinding, rgColumns ); SendRowsFirstChangeFailureNotification( pT, pRow, &hNotifyRow, bDeferred ); } } return DB_E_BADORDINAL; } ATLCOLUMNINFO* pColCur = &(pColInfo[iColInfo]); // Ordinal found at iColInfo BYTE* pSrcTemp = (bReading) ? (BYTE*)pSrcData + pColCur->cbOffset : (BYTE*)pSrcData + pBindCur->obValue; BYTE* pDstTemp = NULL; if (pBindCur->dwPart & DBPART_VALUE) pDstTemp = (bReading) ? (BYTE*)pDstData + pBindCur->obValue : (BYTE*)pDstData + pColCur->cbOffset; if (!bReading) { // Check to see that the appropriate data parts are available if ((pBindCur->dwPart & DBPART_LENGTH) && !(pBindCur->dwPart & DBPART_VALUE) && !(pBindCur->dwPart & DBPART_STATUS)) { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } // Not sure why you would want to run SetData here! bFailed = true; continue; } } // Handle the the status for any consumer issues DBSTATUS dbStat = DBSTATUS_S_OK; if (bReading) { dbStat = pT->GetDBStatus(pRow, pColCur); if (dbStat == DBSTATUS_S_ISNULL) { if (pBindCur->dwPart & DBPART_STATUS) *((DBSTATUS*)((BYTE*)(pDstData) + pBindCur->obStatus)) = dbStat; // Set the length to 0 as reqiured by the spec. if (pBindCur->dwPart & DBPART_LENGTH) *((DBLENGTH*)((BYTE*)(pDstData) + pBindCur->obLength)) = 0; // Set the destination value to NULL if (pBindCur->dwPart & DBPART_VALUE) { ATLENSURE_RETURN(pDstTemp); *pDstTemp = NULL; } continue; } } else { // Allow the provider to do checking for DBSTATUS_S_ISNULL if (pBindCur->dwPart & DBPART_STATUS) { dbStat = *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)); // Return DBSTATUS_E_UNAVAILABLE if the status is DBSTATUS_S_OK // and either the value part is not bound or the length part is // bound and the type is DBTYPE_BYTES. // There was another entry of code here with LENGTH, NO VALUE, // and status was not DBSTATUS_S_ISNULL. May need to regenerate that if (dbStat == DBSTATUS_S_OK) { if (!(pBindCur->dwPart & DBPART_VALUE) || ((pBindCur->dwPart & DBPART_LENGTH) && (pBindCur->wType == DBTYPE_BYTES))) { // Can't set non-null columns w/o a value part __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } bFailed = true; *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = DBSTATUS_E_UNAVAILABLE; continue; } } switch (dbStat) { case DBSTATUS_S_ISNULL: if (!(pColCur->dwFlags & DBCOLUMNFLAGS_ISNULLABLE) || FAILED(pT->SetDBStatus(&dbStat, pRow, pColCur))) { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } // Special processing for attempting to write, read-only columns if (!(pColCur->dwFlags & DBCOLUMNFLAGS_ISNULLABLE)) *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = DBSTATUS_E_INTEGRITYVIOLATION; bFailed = true; } else { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, 1, &iBind, DBREASON_COLUMN_SET, DBEVENTPHASE_DIDEVENT, TRUE); } } bSucceeded = true; dbStat = DBSTATUS_S_OK; if (pBindCur->dwPart & DBPART_VALUE) { ATLENSURE_RETURN(pDstTemp); *pDstTemp = NULL; } } continue; break; case DBSTATUS_S_DEFAULT: case DBSTATUS_S_IGNORE: { HRESULT hrStatus = pT->SetDBStatus(&dbStat, pRow, pColCur); *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = dbStat; if (FAILED(hrStatus)) { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } // Note, status should be set by SetDBStatus bFailed = true; } else { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_DIDEVENT, TRUE); } } bSucceeded = true; } continue; break; } case DBSTATUS_S_OK: // Still call SetDBStatus here as they may have locks on // integrity contstraints to observe if (FAILED(pT->SetDBStatus(&dbStat, pRow, pColCur))) { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } bFailed = true; *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = dbStat; continue; } break; default: *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = DBSTATUS_E_BADSTATUS; __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } bFailed = true; continue; break; } } } // Determine sizes of input and output columns DBLENGTH cbCol = 0; DBLENGTH cbDst; if (bReading) cbDst = pBindCur->cbMaxLen; else cbDst = pColCur->ulColumnSize; switch (pColCur->wType) { case DBTYPE_STR: if (bReading) cbCol = lstrlenA((LPSTR)(((BYTE*)pSrcData) + pColCur->cbOffset)); else { // Use the length field when setting data if (pBindCur->dwPart & DBPART_LENGTH) cbCol = *((DBLENGTH*)((BYTE*)(pSrcData) + pBindCur->obLength)); else cbCol = lstrlenA((LPSTR)(pSrcTemp)); // was cbDst if (cbCol >= cbDst) { if (cbCol > (cbDst + 1)) // over maximum case { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } bFailed = true; if (pBindCur->dwPart & DBPART_STATUS) *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = DBSTATUS_E_CANTCONVERTVALUE; continue; } } cbCol = cbDst; // Leave room for NULL term. need to copy for WSTR } break; case DBTYPE_WSTR: case DBTYPE_BSTR: if (bReading) cbCol = lstrlenW((LPWSTR)(((BYTE*)pSrcData) + pColCur->cbOffset)) * sizeof(WCHAR); else { if (pBindCur->dwPart & DBPART_LENGTH) cbCol = *((DBLENGTH*)((BYTE*)(pSrcData) + pBindCur->obLength)); else cbCol = lstrlenW((LPWSTR)(pSrcData)) * sizeof(WCHAR); if (cbCol >= cbDst) { if (cbCol > (cbDst + 1)) // over maximum case { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } bFailed = true; if (pBindCur->dwPart & DBPART_STATUS) *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = DBSTATUS_E_CANTCONVERTVALUE; continue; } } cbCol = cbDst; // Leave room for NULL term. need to copy for WSTR } break; case DBTYPE_BYTES: if (bReading) cbCol = pColCur->ulColumnSize; else { if (pBindCur->dwPart & DBPART_LENGTH) cbCol = *((DBLENGTH *)((BYTE*)(pSrcData) + pBindCur->obLength)); else { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } // If no length part is bound for DBTYPE_BYTES, it is an error bFailed = true; continue; } if (cbCol >= cbDst) cbCol = cbDst; // Leave room for NULL term. need to copy for WSTR } break; default: if (bReading) cbCol = pColCur->ulColumnSize; else cbDst = pColCur->ulColumnSize; break; } cbDst=cbCol; // Handle cases where we have provider owned memory. Note, these should be // with DBTYPE_BYREF (otherwise, it doesn't make sense). if (pBindCur->dwPart & DBPART_VALUE) { if (pBindCur->dwMemOwner == DBMEMOWNER_PROVIDEROWNED && pBindCur->wType & DBTYPE_BYREF) { ATLENSURE_RETURN(pDstTemp); *(BYTE**)pDstTemp = pSrcTemp; } else { ATLASSERT(pT->m_spConvert != NULL); ATLASSUME(pDstTemp != NULL); hr = pT->m_spConvert->DataConvert(pColCur->wType, pBindCur->wType, cbCol, &cbDst, pSrcTemp, pDstTemp, pBindCur->cbMaxLen, dbStat, &dbStat, pBindCur->bPrecision, pBindCur->bScale,0); } } if (pBindCur->dwPart & DBPART_LENGTH) { if (bReading) *((DBLENGTH*)((BYTE*)(pDstData) + pBindCur->obLength)) = (dbStat == DBSTATUS_S_ISNULL) ? 0 : cbDst; else *((DBLENGTH*)((BYTE*)(pSrcData) + pBindCur->obLength)) = cbDst; } if (pBindCur->dwPart & DBPART_STATUS) { if (bReading) *((DBSTATUS*)((BYTE*)(pDstData) + pBindCur->obStatus)) = dbStat; else *((DBSTATUS*)((BYTE*)(pSrcData) + pBindCur->obStatus)) = dbStat; } if (FAILED(hr)) { if (!bReading) { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_FAILEDTODO, TRUE); } } } bFailed = true; } else { bSucceeded = true; } } // Return error codes to the consumer if (bFailed) { __if_exists(T::Fire_OnFieldChange) { if( !bReading ) { // SendColumnSetFailureNotification( pT, hNotifyRow, pBinding, rgColumns ); SendRowsFirstChangeFailureNotification( pT, pRow, &hNotifyRow, bDeferred ); } } return (bSucceeded != false) ? DB_S_ERRORSOCCURRED : DB_E_ERRORSOCCURRED; } else { if (!bReading) { __if_exists(T::Fire_OnFieldChange) { if (/* pRow->m_status != DBPENDINGSTATUS_NEW && */ pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnFieldChange(pT, hNotifyRow, pBinding->cBindings, rgColumns.GetData(), DBREASON_COLUMN_SET, DBEVENTPHASE_DIDEVENT, TRUE); } } } return hr; } } template > class ATL_NO_VTABLE IRowsetChangeImpl : public BaseInterface { public: // IRowsetChange Methods STDMETHOD (DeleteRows)( _In_ HCHAPTER /*hReserved*/, _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _Out_opt_cap_(cRows) DBROWSTATUS rgRowStatus[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetChangeImpl::DeleteRows")); T* pT = (T*)this; T::ObjectLock lock(pT); __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } BOOL bSuccess = false; BOOL bFailed = false; // Check to see if the DBPROP_UPDATABILITY value DBPROPVAL_UP_CHANGE // is set. If not, then this method should return DB_E_NOTSUPPORTED. CComVariant varChange; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_UPDATABILITY, &varChange); if (!(varChange.iVal & DBPROPVAL_UP_DELETE)) return DB_E_NOTSUPPORTED; // NO-OP if cRows is zero if (cRows == 0) return S_OK; if (rghRows == NULL && cRows >= 1) return E_INVALIDARG; // Determine if we're in immediate or deferred mode CComVariant varDeferred; bool bDeferred; hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetUpdate, &varDeferred); (FAILED(hr) || varDeferred.boolVal == ATL_VARIANT_FALSE) ? bDeferred = false : bDeferred = true; // Loop through and delete rows for (DBCOUNTITEM l=0; lFire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_OKTODO, FALSE); if (hrNotify == S_FALSE) { bFailed |= true; if (rgRowStatus != NULL) rgRowStatus[l] = DBROWSTATUS_E_CANCELED; continue; } else { hrNotify = pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_ABOUTTODO, FALSE); if (hrNotify == S_FALSE) { bFailed |= true; if (rgRowStatus != NULL) rgRowStatus[l] = DBROWSTATUS_E_CANCELED; continue; } } // Send sync after now as it gets tricky to replace stuff once // we're in the method. hrNotify = pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_SYNCHAFTER, FALSE); if (hrNotify == S_FALSE) { bFailed |= true; if (rgRowStatus != NULL) rgRowStatus[l] = DBROWSTATUS_E_CANCELED; continue; } } // Attempt to locate the row in our map bool bFound = pT->m_rgRowHandles.Lookup(hRow, pRow); if (!bFound || pRow == NULL) { bFailed |= true; if (rgRowStatus != NULL) rgRowStatus[l] = DBROWSTATUS_E_INVALID; continue; } // Check if the row has already been deleted. Note, we // use DBPENDINGSTATUS_DELETED in the immediate case as // well. if (pRow->m_status == DBPENDINGSTATUS_DELETED) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_FAILEDTODO, TRUE); } if (rgRowStatus != NULL) rgRowStatus[l] = DBROWSTATUS_E_DELETED; bFailed |= true; continue; } // Delete the row if (bDeferred) { // Mark the row as deleted but do not remove it until // IRowsetUpdate::Update is called. if (pRow->m_status != DBPENDINGSTATUS_INVALIDROW) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_DIDEVENT, FALSE); } bSuccess |= true; rowStat = DBROWSTATUS_S_OK; } else { __if_exists(T::OnRowChange) { pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_FAILEDTODO, FALSE); } bFailed |= true; // unsigned high bit signified neg. number if (pRow->m_dwRef & 0x80000000) rowStat = DBROWSTATUS_E_INVALID; else rowStat = DBROWSTATUS_E_DELETED; } } else { // Remove the m_rgRowData and m_rgRowLink entries. The // HROW will be released in IRowset::ReleaseRows. // Remove the link by NULLing out the pointer if( pRow->m_iRowset < 0 || pRow->m_iRowset >= pT->m_rgRowData.GetCount() ) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_FAILEDTODO, FALSE); } rowStat = DBROWSTATUS_E_INVALID; bFailed |= true; } else { pT->m_rgRowData.RemoveAt(pRow->m_iRowset); // Perform the actual delete of the row. Send notificaitons // to inform the consumer of the change. // Need to update any outstanding pRow->m_iRowset // variables POSITION pos = pT->m_rgRowHandles.GetStartPosition(); while (pos != NULL) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext( pos ); ATLENSURE_RETURN( pPair != NULL ); RowClass* pCheckRow = pPair->m_value; if (pCheckRow != NULL && pCheckRow->m_iRowset > pRow->m_iRowset) pCheckRow->m_iRowset--; } __if_exists(T::GetRowsAt) { // If we support bookmarks, then ensure our bookmark array // is solid for (size_t k=0; km_rgBookmarks.GetCount(); k++) { if (pT->m_rgBookmarks[k] == (DBROWCOUNT)(pRow->m_iRowset + 1)) pT->m_rgBookmarks[k] = -1; // Value for invalid bookmark if (pT->m_rgBookmarks[k] > (DBROWCOUNT)(pRow->m_iRowset + 1)) pT->m_rgBookmarks[k] = (pT->m_rgBookmarks[k] - 1); } } if (FAILED(pT->FlushData(rghRows[l], NULL))) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_FAILEDTODO, FALSE); } bFailed |= true; rowStat = DBROWSTATUS_E_FAIL; } else { // Send DIDEVENT __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &rghRows[l], DBREASON_ROW_DELETE, DBEVENTPHASE_DIDEVENT, FALSE); } rowStat = DBROWSTATUS_S_OK; bSuccess |= true; } } } // We use the status even in immediate mode to determine if a // row has been deleted from the cache but not release if (pRow->m_status == DBPENDINGSTATUS_NEW) pRow->m_status = DBPENDINGSTATUS_INVALIDROW; else { if (pRow->m_status != DBPENDINGSTATUS_INVALIDROW) pRow->m_status = DBPENDINGSTATUS_DELETED; } if (rgRowStatus != NULL) rgRowStatus[l] = rowStat; } hr = S_OK; if (bFailed) (bSuccess) ? hr = DB_S_ERRORSOCCURRED : hr = DB_E_ERRORSOCCURRED; return hr; } STDMETHOD (SetData)( _In_ HROW hRow, _In_ HACCESSOR hAccessor, _In_opt_ void* pSrcData) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetChangeImpl::SetData\n")); T* pT = (T*)this; T::ObjectLock lock(pT); __if_exists(T::Fire_OnFieldChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } RowClass* pRow; // Check to see if the DBPROP_UPDATABILITY value DBPROPVAL_UP_CHANGE // is set. If not, then this method should return DB_E_NOTSUPPORTED. CComVariant varChange; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_UPDATABILITY, &varChange); if (!(varChange.iVal & DBPROPVAL_UP_CHANGE)) return DB_E_NOTSUPPORTED; if (hRow == NULL) return DB_E_BADROWHANDLE; if( ! pT->m_rgRowHandles.Lookup(hRow, pRow) ) return DB_E_BADROWHANDLE; if (hRow == NULL || pRow == NULL) return DB_E_BADROWHANDLE; hr = TransferData (pT, false, pSrcData, pRow, &(pT->m_rgRowHandles), hAccessor); if (FAILED(hr)) return hr; // Flush Users Data HRESULT hrFlush = pT->FlushData(hRow, hAccessor); if (SUCCEEDED(hrFlush)) return hr; // note: we could have DB_S_ERRORSOCCURRED from TransferData else return hrFlush; } STDMETHOD (InsertRow)( _In_ HCHAPTER /*hReserved*/, _In_ HACCESSOR hAccessor, _In_opt_ void* pData, _Out_opt_ HROW* phRow) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetChangeImpl::InsertRow\n")); T* pT = (T*) this; T::ObjectLock lock(pT); __if_exists(T::Fire_OnRowChange) { HRESULT hrNotify = S_OK; // Used for responses to notifications // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) { // Note, we can't set this above because we may inadvertantly // step on someone elses *phRow if (phRow != NULL) *phRow = NULL; return DB_E_NOTREENTRANT; } else pT->DecrementMutex(); } // Check to see if the DBPROP_UPDATABILITY value DBPROPVAL_UP_CHANGE // is set. If not, then this method should return DB_E_NOTSUPPORTED. CComVariant varChange; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_UPDATABILITY, &varChange); if (!(varChange.iVal & DBPROPVAL_UP_INSERT)) return DB_E_NOTSUPPORTED; if (phRow != NULL) *phRow = NULL; // validate that the hAccessor is valid T::_BindType* pBinding; bool bFound = pT->m_rgBindings.Lookup((INT_PTR)hAccessor, pBinding); if (!bFound || pBinding == NULL) return DB_E_BADACCESSORHANDLE; // validate parameters if (pData == NULL && pBinding->cBindings != 0) return E_INVALIDARG; // Check to see if DBPROP_CANHOLDROWS is set to false. In this case, // return a DB_E_ROWSNOTRELEASED if there are any pending changes. CComVariant varHoldRows; hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_CANHOLDROWS, &varHoldRows); if (FAILED(hr) || varHoldRows.boolVal == ATL_VARIANT_FALSE) { if (pT->m_rgRowHandles.GetCount() > 0) { RowClass* pCheckRow = NULL; POSITION pos = pT->m_rgRowHandles.GetStartPosition(); while (pos != NULL) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext(pos); ATLENSURE_RETURN( pPair != NULL ); HROW hCheckRow = pPair->m_key; bool bFoundHandle = pT->m_rgRowHandles.Lookup(hCheckRow, pCheckRow); if (bFoundHandle && pCheckRow != NULL && pCheckRow->m_status != DBPENDINGSTATUS_UNCHANGED) return DB_E_ROWSNOTRELEASED; } } } // We should check DBPROP_IMMOBILEROWS and then call an // ordering routine in the user's code. // Create a row and place into m_rgRowData Storage newRow; // Create an instance of the users data CComVariant var; HRESULT hrProps = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_BOOKMARKS, &var); if (SUCCEEDED(hrProps) && var.boolVal != ATL_VARIANT_FALSE) { DBORDINAL cCols; ATLCOLUMNINFO* pInfo = T::GetColumnInfo(pT, &cCols); ATLASSERT(pInfo != NULL); for (DBORDINAL i = 0;i < cCols; i++) { if (pInfo[i].iOrdinal == 0) { switch(pInfo[i].wType) { case DBTYPE_BYTES: *((DBBKMARK*)(&newRow + pInfo[i].cbOffset)) = (ULONG_PTR)(pT->m_rgRowData.GetCount() + 1); break; default: ATLASSERT(FALSE); }; } } } // Call CreateRow to make a new hRow HROW hInsertedRow = NULL; DBCOUNTITEM ulRowsObtained = 0; size_t lSize = pT->m_rgRowData.GetCount(); hr = pT->CreateRow((LONG_PTR)lSize, ulRowsObtained, &hInsertedRow); if (FAILED(hr)) { return hr; } else { __if_exists(T::Fire_OnRowChange) { hrNotify = pT->Fire_OnRowChange(pT, 1, &hInsertedRow, DBREASON_ROW_INSERT, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { pT->m_rgRowHandles.RemoveKey((RowClass::KeyType)hInsertedRow); return DB_E_CANCELED; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hInsertedRow, DBREASON_ROW_INSERT, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { pT->m_rgRowHandles.RemoveKey((RowClass::KeyType)hInsertedRow); return DB_E_CANCELED; } } } // Add in the storage and linkeage for the row CComVariant varOrderedInsert; // Need to determine if we want ordered insertions bool bOrderedInsert; hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IMMOBILEROWS, &varOrderedInsert); (FAILED(hr) || varOrderedInsert.boolVal != ATL_VARIANT_FALSE) ? bOrderedInsert = false : bOrderedInsert = true; //if (!pT->m_rgRowData.Add(newRow)) //{ // ATLTRACE(atlTraceDBProvider, 0, _T("Failed to add record Out of Memory")); // return E_OUTOFMEMORY; //} _ATLTRY { pT->m_rgRowData.Add(newRow); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); ATLTRACE(atlTraceDBProvider, 0, _T("Failed to add record Out of Memory")); return E_OUTOFMEMORY; } // Set the inserted row's status to DBPENDINGSTATUS_NEW if it is deferred. // This will prevent a spurious Notification for ROW_FIRSTCHANGE from // firing in IRowsetUpdateImpl::SetData. CComVariant varDeferred; bool bDeferred; HRESULT hrDeferred = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetUpdate, &varDeferred); (FAILED(hrDeferred) || varDeferred.boolVal == ATL_VARIANT_FALSE) ? bDeferred = false : bDeferred = true; RowClass* pRow; ATLVERIFY( pT->m_rgRowHandles.Lookup(hInsertedRow, pRow) ); ATLENSURE_RETURN(pRow != NULL); // Set the status to NEW + UNCHANGED so we don't generate COLUMN_SET or // FIRSTCHANGE events in SetData. We'll switch it back to zero after the // operation. pRow->m_status = DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED; // Call SetData, if necessary if (pData != NULL) { hr = SetData(hInsertedRow, hAccessor, pData); if (FAILED(hr)) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &hInsertedRow, DBREASON_ROW_INSERT, DBEVENTPHASE_FAILEDTODO, TRUE); } } } if (!bDeferred) pRow->m_status = 0; else pRow->m_status = DBPENDINGSTATUS_NEW; __if_exists(T::Fire_OnRowChange) { hrNotify = pT->Fire_OnRowChange(pT, 1, &hInsertedRow, DBREASON_ROW_INSERT, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { // Remove storage RowClass* pRowInserted; ATLVERIFY( pT->m_rgRowHandles.Lookup(hInsertedRow, pRowInserted) ); ATLENSURE_RETURN( pRowInserted != NULL ); pT->m_rgRowData.RemoveAt(pRowInserted->m_iRowset); // Remove Handle pT->m_rgRowHandles.RemoveKey((RowClass::KeyType)hInsertedRow); return DB_E_CANCELED; } pT->Fire_OnRowChange(pT, 1, &hInsertedRow, DBREASON_ROW_INSERT, DBEVENTPHASE_DIDEVENT, TRUE); } if (phRow != NULL && SUCCEEDED(hr)) *phRow = hInsertedRow; return hr; } // Callbacks to Provider HRESULT FlushData( _In_ HROW, _In_ HACCESSOR) { // The provider overrides this function to commit data to its store return S_OK; } }; // IRowsetImpl template > class ATL_NO_VTABLE IRowsetImpl : public RowsetInterface { public: typedef RowClass _HRowClass; IRowsetImpl() { m_iRowset = 0; m_bCanScrollBack = false; m_bCanFetchBack = false; m_bRemoveDeleted = true; m_bIRowsetUpdate = false; m_bReset = true; m_bExternalFetch = false; } virtual ~IRowsetImpl() { //for (int i = 0; i < m_rgRowHandles.GetCount(); i++) // delete (m_rgRowHandles.GetValueAt(i)); POSITION pos = m_rgRowHandles.GetStartPosition(); while( pos != NULL ) { MapClass::CPair *pPair = m_rgRowHandles.GetNext(pos); if(pPair!=NULL) { delete pPair->m_value; } else { ATLASSERT(FALSE); } } } HRESULT RefRows( _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _Out_opt_cap_(cRows) DBREFCOUNT rgRefCounts[], _Out_opt_cap_(cRows) DBROWSTATUS rgRowStatus[], _In_ BOOL bAdd) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetImpl::AddRefRows\n")); if (cRows == 0) return S_OK; if (rghRows == NULL) return E_INVALIDARG; T::ObjectLock cab((T*)this); BOOL bSuccess1 = FALSE; BOOL bFailed1 = FALSE; DBROWSTATUS rs; DWORD dwRef; __if_exists(T::Fire_OnRowChange) { // Maintain an array of handles w/ zero ref counts for notification CAtlArray arrZeroHandles; } for (ULONG iRow = 0; iRow < cRows; iRow++) { HROW hRowCur = rghRows[iRow]; RowClass* pRow; bool bFoundCur = m_rgRowHandles.Lookup((RowClass::KeyType)hRowCur, pRow); if (!bFoundCur || pRow == NULL) { ATLTRACE(atlTraceDBProvider, 0, _T("Could not find HANDLE %x in list\n"), hRowCur); rs = DBROWSTATUS_E_INVALID; dwRef = 0; bFailed1 = TRUE; } else { if (pRow->m_status != DBPENDINGSTATUS_UNCHANGED && pRow->m_status != DBPENDINGSTATUS_INVALIDROW && pRow->m_dwRef == 0 && !bAdd) { if (rgRefCounts) rgRefCounts[iRow] = 0; if (rgRowStatus != NULL) rgRowStatus[iRow] = DBROWSTATUS_E_INVALID; bFailed1 = TRUE; continue; } // Check if we're in immediate or deferred mode CComVariant varDeferred; bool bDeferred; T* pT = (T*)this; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetUpdate, &varDeferred); (FAILED(hr) || varDeferred.boolVal == ATL_VARIANT_FALSE) ? bDeferred = false : bDeferred = true; if (!bDeferred && bAdd && pRow->m_status == DBPENDINGSTATUS_DELETED) { bFailed1 = TRUE; if (rgRowStatus != NULL) rgRowStatus[iRow] = DBROWSTATUS_E_DELETED; continue; } if (bAdd) dwRef = pRow->AddRefRow(); else { dwRef = pRow->ReleaseRow(); if ((pRow->m_status != DBPENDINGSTATUS_UNCHANGED && pRow->m_status != 0 && pRow->m_status != DBPENDINGSTATUS_INVALIDROW) && bDeferred) { if (rgRefCounts) rgRefCounts[iRow] = dwRef; if (rgRowStatus != NULL) rgRowStatus[iRow] = DBROWSTATUS_S_PENDINGCHANGES; bSuccess1 = TRUE; continue; } if (dwRef == 0) { __if_exists(T::Fire_OnRowsetChange) { _ATLTRY { arrZeroHandles.Add(hRowCur); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_FAIL; } } // Now determine if the DBPROP_REMOVEDELETED property // is ATL_VARIANT_FALSE. If so, then do NOT remove the // row. hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_REMOVEDELETED, &varDeferred); if (FAILED(hr) || varDeferred.boolVal != ATL_VARIANT_FALSE) { delete pRow; m_rgRowHandles.RemoveKey((RowClass::KeyType)hRowCur); } } } bSuccess1 = TRUE; rs = DBROWSTATUS_S_OK; } if (rgRefCounts) rgRefCounts[iRow] = dwRef; if (rgRowStatus != NULL) rgRowStatus[iRow] = rs; } __if_exists(T::Fire_OnRowsetChange) { if (!bAdd && arrZeroHandles.GetCount() > 0) { T* pT = (T*)this; pT->Fire_OnRowChange(pT, (ULONG_PTR)arrZeroHandles.GetCount(), arrZeroHandles.GetData(), DBREASON_ROW_RELEASE, DBEVENTPHASE_DIDEVENT, FALSE); } } if (!bSuccess1 && !bFailed1) { ATLTRACE(atlTraceDBProvider, 0, _T("IRowsetImpl::RefRows Unexpected state\n")); return E_FAIL; } HRESULT hr = S_OK; if (bSuccess1 && bFailed1) hr = DB_S_ERRORSOCCURRED; if (!bSuccess1 && bFailed1) hr = DB_E_ERRORSOCCURRED; return hr; } STDMETHOD(AddRefRows)( _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _Out_opt_cap_(cRows) DBREFCOUNT rgRefCounts[], _Out_opt_cap_(cRows) DBROWSTATUS rgRowStatus[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetImpl::AddRefRows\n")); if (cRows == 0) return S_OK; return RefRows(cRows, rghRows, rgRefCounts, rgRowStatus, TRUE); } virtual DBSTATUS GetDBStatus( _In_opt_ RowClass*, _In_opt_ ATLCOLUMNINFO*) { return DBSTATUS_S_OK; } virtual HRESULT SetDBStatus( _In_opt_ DBSTATUS*, _In_opt_ RowClass*, _In_opt_ ATLCOLUMNINFO*) { // The provider overrides this function to handle special processing // for DBSTATUS_S_ISNULL and DBSTATUS_S_DEFAULT. return S_OK; } OUT_OF_LINE HRESULT GetDataHelper( _In_ HACCESSOR hAccessor, _Out_ ATLCOLUMNINFO*& rpInfo, _Deref_out_ void** ppBinding, _Out_ void*& rpSrcData, _Out_ DBORDINAL& rcCols, _Inout_ CComPtr& rspConvert, _In_ RowClass* pRow) { ATLENSURE_RETURN(ppBinding != NULL); T* pT = (T*) this; T::_BindingVector::CPair* pPair = pT->m_rgBindings.Lookup( hAccessor ); if (pPair == NULL || pPair->m_value == NULL) return DB_E_BADACCESSORHANDLE; *ppBinding = pPair->m_value; rpSrcData = (void*)&(pT->m_rgRowData[pRow->m_iRowset]); rpInfo = T::GetColumnInfo((T*)this, &rcCols); rspConvert = pT->m_spConvert; return S_OK; } STDMETHOD(GetData)( _In_ HROW hRow, _In_ HACCESSOR hAccessor, _In_opt_ void *pDstData) { T* pT = (T*)this; RowClass* pRow; if (hRow == NULL ) return DB_E_BADROWHANDLE; if( !pT->m_rgRowHandles.Lookup((INT_PTR)hRow, pRow)) return DB_E_BADROWHANDLE; if (pRow == NULL) return DB_E_BADROWHANDLE; return TransferData (pT, true, pDstData, pRow, &(pT->m_rgRowHandles), hAccessor); } HRESULT CreateRow( _In_ DBROWOFFSET lRowsOffset, _Inout_ DBCOUNTITEM& cRowsObtained, _Inout_ HROW* rgRows) { RowClass* pRow = NULL; ATLASSERT(lRowsOffset >= 0); RowClass::KeyType key = lRowsOffset+1; ATLASSERT(key > 0); bool bFound = m_rgRowHandles.Lookup(key,pRow); if (!bFound || pRow == NULL) { pRow=NULL; ATLTRY(pRow = new RowClass(lRowsOffset)) if (pRow == NULL) return E_OUTOFMEMORY; _ATLTRY { m_rgRowHandles.SetAt(key, pRow); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); delete pRow; pRow = NULL; return E_OUTOFMEMORY; } } pRow->AddRefRow(); m_bReset = false; rgRows[cRowsObtained++] = (HROW)key; return S_OK; } HRESULT GetNextRowsSkipDeleted( _In_ HCHAPTER /*hReserved*/, _In_ DBROWOFFSET lRowsOffset, _In_ DBROWCOUNT cRows, _Out_ DBCOUNTITEM *pcRowsObtained, _Deref_post_cap_(*pcRowsObtained) HROW **prghRows) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetImpl::GetNextRows\n")); T* pT = (T*) this; __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) { // Note, we can't set this above this block because we may // inadvertantly reset somebody else's pcRowsObtained if (pcRowsObtained != NULL) *pcRowsObtained = 0; return DB_E_NOTREENTRANT; } else pT->DecrementMutex(); } if (pcRowsObtained != NULL) *pcRowsObtained = 0; if (prghRows == NULL || pcRowsObtained == NULL) return E_INVALIDARG; if (cRows == 0) return S_OK; HRESULT hr = S_OK; T::ObjectLock cab(pT); if (lRowsOffset < 0 && !m_bCanScrollBack) return DB_E_CANTSCROLLBACKWARDS; if (cRows < 0 && !m_bCanFetchBack) return DB_E_CANTFETCHBACKWARDS; DBROWOFFSET cRowsInSet = (DBROWOFFSET)pT->m_rgRowData.GetCount(); DBROWOFFSET iStepSize = cRows >= 0 ? 1 : -1; // If cRows == MINLONG_PTR, we can't use ABS on it. Therefore, we reset it // to a value just greater than cRowsInSet if (cRows == MINLONG_PTR && cRowsInSet != MINLONG_PTR) cRows = cRowsInSet + 2; // set the value to something we can deal with else cRows = AbsVal(cRows); // First, simulate the operation, skipping over any deleted rows, calculate the number of rows retrieved, // and return an error code if appropriate DBROWOFFSET nCurrentRow = m_iRowset; // Note, if m_bReset, m_iRowset must be 0 if ( m_bReset && (lRowsOffset < 0 || ( lRowsOffset == 0 && iStepSize < 0 ) ) ) nCurrentRow = cRowsInSet; // skip the rows according to the lRowsOffset value if( lRowsOffset > 0 ) { DBROWOFFSET nRowsToSkip = lRowsOffset; while( nRowsToSkip > 0 && nCurrentRow <= cRowsInSet ) { RowClass* pRow = NULL; RowClass::KeyType key = nCurrentRow + 1; bool bFound = m_rgRowHandles.Lookup(key,pRow); if( bFound && pRow != NULL ) { if( pRow->m_status == DBPENDINGSTATUS_DELETED ) { nCurrentRow++; continue; } } nCurrentRow++; nRowsToSkip--; } if( nCurrentRow > cRowsInSet ) return DB_S_ENDOFROWSET; } else if( lRowsOffset < 0 ) { DBROWOFFSET nRowsToSkip = lRowsOffset; if (nRowsToSkip == MINLONG_PTR && cRowsInSet != MINLONG_PTR) nRowsToSkip = cRowsInSet + 2; // set the value to something we can deal with else nRowsToSkip = -nRowsToSkip; while( nRowsToSkip > 0 && nCurrentRow > 0 ) { nCurrentRow--; RowClass* pRow = NULL; RowClass::KeyType key = nCurrentRow + 1; bool bFound = m_rgRowHandles.Lookup(key,pRow); if( bFound && pRow != NULL ) { if( pRow->m_status == DBPENDINGSTATUS_DELETED ) { continue; } } nRowsToSkip--; } if( nCurrentRow < 0 ) return DB_S_ENDOFROWSET; } DBROWOFFSET nFetchStartPosition = nCurrentRow; // now fetch the rows DBROWOFFSET cRowsToFetch = cRows; DBROWOFFSET cRowsFetched = 0; if( iStepSize == 1 ) { while( cRowsToFetch > 0 && nCurrentRow < cRowsInSet ) { RowClass* pRow = NULL; RowClass::KeyType key = nCurrentRow + 1; bool bFound = m_rgRowHandles.Lookup(key,pRow); if( bFound && pRow != NULL ) { if( pRow->m_status == DBPENDINGSTATUS_DELETED ) { nCurrentRow++; continue; } } // now we would fetch the row cRowsFetched++; cRowsToFetch--; nCurrentRow++; } } else { while( cRowsToFetch > 0 && nCurrentRow > 0 ) { nCurrentRow--; RowClass* pRow = NULL; RowClass::KeyType key = nCurrentRow + 1; bool bFound = m_rgRowHandles.Lookup(key,pRow); if( bFound && pRow != NULL ) { if( pRow->m_status == DBPENDINGSTATUS_DELETED ) { continue; } } // now we would fetch the row cRowsFetched++; cRowsToFetch--; } } // we could not fetch any rows if( cRowsFetched == 0 ) return DB_S_ENDOFROWSET; // Simulation completed... no problems detected... we can now perform the real fetching // Fire events for OKTODO and ABOUTTODO after all validation has taken // place but before any permanent changes to the rowset state take place __if_exists(T::Fire_OnRowsetChange) { // Only fire these events if we're not being called by a bookmark // operation (which is why m_bExternalFetch would be set to true) if(!m_bExternalFetch) { HRESULT hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_OKTODO, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; else { hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_ABOUTTODO, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; else { hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_SYNCHAFTER, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; } } } } nCurrentRow = nFetchStartPosition; // we already calculated the 'start fetch position' in the simulation stage ATLASSERT( nCurrentRow >= 0 && nCurrentRow <= cRowsInSet ); *pcRowsObtained = 0; CComHeapPtr rghRowsAllocated; if (*prghRows == NULL) { DBROWOFFSET cHandlesToAlloc = cRowsFetched; rghRowsAllocated.Allocate(cHandlesToAlloc); if(rghRowsAllocated == NULL) return E_OUTOFMEMORY; *prghRows = rghRowsAllocated; } // now fetch the rows cRowsToFetch = cRows; while( cRowsToFetch > 0 && nCurrentRow >= 0 && nCurrentRow <= cRowsInSet ) { if( ( iStepSize == 1 && nCurrentRow == cRowsInSet ) || ( iStepSize == -1 && nCurrentRow == 0 ) ) break; DBROWOFFSET lRow = nCurrentRow; if( iStepSize > 0 ) { while(true) { RowClass* pRow = NULL; RowClass::KeyType key = lRow + 1; bool bFound = m_rgRowHandles.Lookup(key,pRow); if( bFound && pRow != NULL ) { if( pRow->m_status == DBPENDINGSTATUS_DELETED ) { lRow++; ATLASSERT( lRow < cRowsInSet ); continue; } } break; } } else { while(true) { lRow--; RowClass* pRow = NULL; RowClass::KeyType key = lRow + 1; bool bFound = m_rgRowHandles.Lookup(key,pRow); if( bFound && pRow != NULL ) { if( pRow->m_status == DBPENDINGSTATUS_DELETED ) { ATLASSERT( lRow >= 0 ); continue; } } break; } } ATLASSERT( lRow >= 0 && lRow < cRowsInSet ); hr = pT->CreateRow(lRow, *pcRowsObtained, *prghRows); if (FAILED(hr)) { RefRows(*pcRowsObtained, *prghRows, NULL, NULL, FALSE); for (ULONG iRowDel = 0; iRowDel < *pcRowsObtained; iRowDel++) *prghRows[iRowDel] = NULL; *pcRowsObtained = 0; return hr; } __if_exists(T::Fire_OnRowsetChange) { if (!m_bExternalFetch) pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_DIDEVENT, TRUE); } cRowsToFetch--; if( iStepSize > 0 ) nCurrentRow = lRow + iStepSize; else nCurrentRow = lRow; } // while // If we have multiple rows fetched, return one event, per the specification // containing all rows activated. if (*pcRowsObtained >= 1) { __if_exists(T::Fire_OnRowsetChange) { CAtlArray rgActivated; for (size_t ulActivated = 0; ulActivated < *pcRowsObtained; ulActivated++) { // This is a bit of an assumption that all newly activated // rows would have the ref count as 1. Another way to solve this // problem would be to modify the signature of CreateRow to take // a CAtlArray as a parameter and store the activated rows. RowClass* pActiveRow; if( m_rgRowHandles.Lookup((*prghRows)[ulActivated], pActiveRow ) && (pActiveRow != NULL && pActiveRow->m_dwRef == 1) ) { _ATLTRY { rgActivated.Add((*prghRows)[ulActivated]); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } } } if (rgActivated.GetCount() > 0) { pT->Fire_OnRowChange(pT, (DBCOUNTITEM)rgActivated.GetCount(), rgActivated.GetData(), DBREASON_ROW_ACTIVATE, DBEVENTPHASE_DIDEVENT, FALSE); } } } m_iRowset = nCurrentRow; if( *pcRowsObtained < (DBCOUNTITEM)cRows ) // we could not fetch the requested # of rows hr = DB_S_ENDOFROWSET; if (SUCCEEDED(hr)) rghRowsAllocated.Detach(); return hr; } STDMETHOD(GetNextRows)( _In_ HCHAPTER hReserved, _In_ DBROWOFFSET lRowsOffset, _In_ DBROWCOUNT cRows, _Out_ DBCOUNTITEM *pcRowsObtained, _Deref_post_cap_(*pcRowsObtained) HROW **prghRows) { if( m_bRemoveDeleted && m_bIRowsetUpdate ) return GetNextRowsSkipDeleted( hReserved, lRowsOffset, cRows, pcRowsObtained, prghRows ); DBROWOFFSET lTmpRows = lRowsOffset; ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetImpl::GetNextRows\n")); T* pT = (T*) this; __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) { // Note, we can't set this above this block because we may // inadvertantly reset somebody else's pcRowsObtained if (pcRowsObtained != NULL) *pcRowsObtained = 0; return DB_E_NOTREENTRANT; } else pT->DecrementMutex(); } if (pcRowsObtained != NULL) *pcRowsObtained = 0; if (prghRows == NULL || pcRowsObtained == NULL) return E_INVALIDARG; if (cRows == 0) return S_OK; HRESULT hr = S_OK; T::ObjectLock cab(pT); if (lRowsOffset < 0 && !m_bCanScrollBack) return DB_E_CANTSCROLLBACKWARDS; if (cRows < 0 && !m_bCanFetchBack) return DB_E_CANTFETCHBACKWARDS; // Calculate # of rows in set and the base fetch position. If the rowset // is at its head position, then lRowOffset < 0 means moving from the BACK // of the rowset and not the front. DBROWOFFSET cRowsInSet = (DBROWOFFSET)pT->m_rgRowData.GetCount(); if (((lRowsOffset == MINLONG_PTR) && (cRowsInSet != MINLONG_PTR)) || AbsVal(lRowsOffset) > cRowsInSet || ( AbsVal(lRowsOffset) == cRowsInSet && lRowsOffset < 0 && cRows < 0 ) || ( AbsVal(lRowsOffset) == cRowsInSet && lRowsOffset > 0 && cRows > 0 )) return DB_S_ENDOFROWSET; // In the case where the user is moving backwards after moving forwards, // we do not wrap around to the end of the rowset. if ((m_iRowset == 0 && !m_bReset && cRows < 0) || ((m_iRowset + lRowsOffset) > cRowsInSet) || (m_iRowset == cRowsInSet && lRowsOffset >= 0 && cRows > 0)) return DB_S_ENDOFROWSET; // Fire events for OKTODO and ABOUTTODO after all validation has taken // place but before any permanent changes to the rowset state take place __if_exists(T::Fire_OnRowsetChange) { // Only fire these events if we're not being called by a bookmark // operation (which is why m_bExternalFetch would be set to true) if(!m_bExternalFetch) { HRESULT hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_OKTODO, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; else { hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_ABOUTTODO, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; else { hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_SYNCHAFTER, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; } } } } // Note, if m_bReset, m_iRowset must be 0 if (lRowsOffset < 0 && m_bReset) m_iRowset = cRowsInSet; int iStepSize = cRows >= 0 ? 1 : -1; // If cRows == MINLONG_PTR, we can't use ABS on it. Therefore, we reset it // to a value just greater than cRowsInSet if (cRows == MINLONG_PTR && cRowsInSet != MINLONG_PTR) cRows = cRowsInSet + 2; // set the value to something we can deal with else cRows = AbsVal(cRows); if (iStepSize < 0 && m_iRowset == 0 && m_bReset && lRowsOffset <= 0) m_iRowset = cRowsInSet; lRowsOffset += m_iRowset; *pcRowsObtained = 0; CComHeapPtr rghRowsAllocated; if (*prghRows == NULL) { DBROWOFFSET cHandlesToAlloc = __min(cRowsInSet, cRows); if (iStepSize == 1 && (cRowsInSet - lRowsOffset) < cHandlesToAlloc) cHandlesToAlloc = cRowsInSet - lRowsOffset; if (iStepSize == -1 && lRowsOffset < cHandlesToAlloc) cHandlesToAlloc = lRowsOffset; rghRowsAllocated.Allocate(cHandlesToAlloc); if(rghRowsAllocated == NULL) return E_OUTOFMEMORY; *prghRows = rghRowsAllocated; } while ((lRowsOffset >= 0 && cRows != 0) && ((lRowsOffset < cRowsInSet) || (lRowsOffset <= cRowsInSet && iStepSize < 0))) { // cRows > cRowsInSet && iStepSize < 0 if (lRowsOffset == 0 && cRows > 0 && iStepSize < 0) break; // in the case where we have iStepSize < 0, move the row back // further because we want the previous row DBROWOFFSET lRow = lRowsOffset; if ((lRowsOffset == 0) && (lTmpRows == 0) && (iStepSize < 0)) lRow = cRowsInSet; if (iStepSize < 0) lRow += iStepSize; hr = pT->CreateRow(lRow, *pcRowsObtained, *prghRows); if (FAILED(hr)) { RefRows(*pcRowsObtained, *prghRows, NULL, NULL, FALSE); for (ULONG iRowDel = 0; iRowDel < *pcRowsObtained; iRowDel++) *prghRows[iRowDel] = NULL; *pcRowsObtained = 0; return hr; } __if_exists(T::Fire_OnRowsetChange) { if (!m_bExternalFetch) pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_DIDEVENT, TRUE); } cRows--; lRowsOffset += iStepSize; } // If we have multiple rows fetched, return one event, per the specification // containing all rows activated. if (*pcRowsObtained >= 1) { __if_exists(T::Fire_OnRowsetChange) { CAtlArray rgActivated; for (size_t ulActivated = 0; ulActivated < *pcRowsObtained; ulActivated++) { // This is a bit of an assumption that all newly activated // rows would have the ref count as 1. Another way to solve this // problem would be to modify the signature of CreateRow to take // a CAtlArray as a parameter and store the activated rows. RowClass* pActiveRow; if( m_rgRowHandles.Lookup((*prghRows)[ulActivated], pActiveRow ) && (pActiveRow != NULL && pActiveRow->m_dwRef == 1) ) { _ATLTRY { rgActivated.Add((*prghRows)[ulActivated]); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } } } if (rgActivated.GetCount() > 0) { pT->Fire_OnRowChange(pT, (DBCOUNTITEM)rgActivated.GetCount(), rgActivated.GetData(), DBREASON_ROW_ACTIVATE, DBEVENTPHASE_DIDEVENT, FALSE); } } } m_iRowset = lRowsOffset; if ((lRowsOffset >= cRowsInSet && cRows) || (lRowsOffset < 0 && cRows) || (lRowsOffset == 0 && cRows > 0 && iStepSize < 0)) hr = DB_S_ENDOFROWSET; if (SUCCEEDED(hr)) rghRowsAllocated.Detach(); return hr; } STDMETHOD(ReleaseRows)( _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _In_opt_ DBROWOPTIONS rgRowOptions[], _Out_opt_cap_(cRows) DBREFCOUNT rgRefCounts[], _Out_opt_cap_(cRows) DBROWSTATUS rgRowStatus[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetImpl::ReleaseRows\n")); __if_exists(T::Fire_OnRowChange) { T* pT = (T*) this; // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } if (cRows == 0) return S_OK; UNREFERENCED_PARAMETER(rgRowOptions); return RefRows(cRows, rghRows, rgRefCounts, rgRowStatus, FALSE); } STDMETHOD(RestartPosition)(_In_ HCHAPTER /*hReserved*/) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetImpl::RestartPosition\n")); T* pT = (T*) this; __if_exists(T::Fire_OnRowsetChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); bool bNeedEvents = ((m_iRowset != 0 || !m_bReset)) ? true : false; // Only fire the events iff. we are actually causing a reset if (bNeedEvents) { HRESULT hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_OKTODO, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; else { hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_ABOUTTODO, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; else { hrNotify = pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_SYNCHAFTER, FALSE); if (hrNotify == S_FALSE) return DB_E_CANCELED; } } } } // Check to see if DBPROP_CANHOLDROWS is set to false. In this case, // return a DB_E_ROWSNOTRELEASED. CComVariant varHoldRows; HRESULT hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_CANHOLDROWS, &varHoldRows); if (FAILED(hr) || varHoldRows.boolVal == ATL_VARIANT_FALSE) { if (m_rgRowHandles.GetCount() > 0) { RowClass* pRow = NULL; POSITION pos = pT->m_rgRowHandles.GetStartPosition(); while (pos != NULL) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext(pos); ATLENSURE_RETURN( pPair != NULL ); HROW hRow = pPair->m_key; bool bFound = pT->m_rgRowHandles.Lookup(hRow, pRow); if (bFound && pRow != NULL && pRow->m_status != DBPENDINGSTATUS_UNCHANGED) { __if_exists(T::Fire_OnRowsetChange) { if (bNeedEvents) { pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_FAILEDTODO, TRUE); } } return DB_E_ROWSNOTRELEASED; } } } } m_iRowset = 0; m_bReset = true; __if_exists(T::Fire_OnRowsetChange) { // listener must comply so blow off ret val. if (bNeedEvents) pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_FETCHPOSITIONCHANGE, DBEVENTPHASE_DIDEVENT, TRUE); } return S_OK; } MapClass m_rgRowHandles; DBROWOFFSET m_iRowset; // cursor unsigned m_bCanScrollBack:1; unsigned m_bCanFetchBack:1; unsigned m_bRemoveDeleted:1; // DBPROP_REMOVEDELETED unsigned m_bIRowsetUpdate:1; // DBPROP_IRowsetUpdate unsigned m_bReset:1; unsigned m_bExternalFetch:1; }; template , class BookmarkKeyType = LONG, class BookmarkType = LONG, class BookmarkMapClass = CAtlMap < RowClass::KeyType, RowClass* > > class ATL_NO_VTABLE IRowsetLocateImpl : public IRowsetImpl { public: STDMETHOD (Compare)( _In_ HCHAPTER /*hReserved*/, _In_ DBBKMARK cbBookmark1, _In_ const BYTE * pBookmark1, _In_ DBBKMARK cbBookmark2, _In_ const BYTE * pBookmark2, _Out_ DBCOMPARE * pComparison) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetLocateImpl::Compare\n")); T* pT = (T*)this; __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } // Validate input parameters if (pComparison == NULL) return E_INVALIDARG; // ValidateBookmark catches the cbBookmark == 0 and the // pBookmark == NULL -- E_INVALIDARG cases HRESULT hr = ValidateBookmark(cbBookmark1, pBookmark1); if (hr != S_OK) return hr; hr = ValidateBookmark(cbBookmark2, pBookmark2); if (hr != S_OK) return hr; // Return the value based on the bookmark values. Be sure that // they are not specials in which case go below if ((*pBookmark1 == *pBookmark2) && (cbBookmark1 != 1) && (cbBookmark2 != 1)) { *pComparison = DBCOMPARE_EQ; return S_OK; } // Determine if we are using ordered or unorder bookmarks CComVariant varOrdered; HRESULT hrProps = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_ORDEREDBOOKMARKS, &varOrdered); if ((*pBookmark1 == DBBMK_FIRST && cbBookmark1 == 1) || (*pBookmark1 == DBBMK_LAST && cbBookmark1 == 1) || (*pBookmark2 == DBBMK_FIRST && cbBookmark2 == 1) || (*pBookmark2 == DBBMK_LAST && cbBookmark2 == 1) || (FAILED(hrProps)) || (varOrdered.boolVal == ATL_VARIANT_FALSE)) { // If the bookmarks are 'specials' DBBMK_FIRST or DBBMK_LAST or the // bookmarks are unordered, then we return NE instead of GT or LT. if (*pBookmark1 == *pBookmark2) *pComparison = DBCOMPARE_EQ; else *pComparison = DBCOMPARE_NE; } else { // We have valid bookmarks which are not special values. // Since we assume that bookmarks are ordered, we'll return // the if (*(DBBKMARK*)pBookmark1 < *(DBBKMARK*)pBookmark2) *pComparison = DBCOMPARE_LT; else if (*(DBBKMARK*)pBookmark1 > *(DBBKMARK*)pBookmark2) *pComparison = DBCOMPARE_GT; else *pComparison = DBCOMPARE_EQ; } return S_OK; } STDMETHOD (GetRowsAt)( _In_ HWATCHREGION /*hReserved1*/, _In_ HCHAPTER hReserved2, _In_ DBBKMARK cbBookmark, _In_ const BYTE* pBookmark, _In_ DBROWOFFSET lRowsOffset, _In_ DBROWCOUNT cRows, _Out_ DBCOUNTITEM* pcRowsObtained, _Deref_out_ HROW** prghRows) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetLocateImpl::GetRowsAt\n")); T* pT = (T*)this; __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } T::ObjectLock cab(pT); // Check input parameters if (pcRowsObtained == NULL) return E_INVALIDARG; *pcRowsObtained = 0; if (cbBookmark == 0 || pBookmark == NULL || prghRows == NULL) return E_INVALIDARG; // Check bookmark HRESULT hr = ValidateBookmark(cbBookmark, pBookmark); if (hr != S_OK) return hr; // Set the current row position to the bookmark. Handle any // normal values // We need to handle the offset as the start position is defined // as the bookmark + offset. If the offset is negative, and we // do not have m_bCanScrollBack then return an error. The // GetNextRows function handles the case where cRows is negative // and we don't have m_bCanFetchBack set. if (lRowsOffset < 0 && !m_bCanScrollBack) return DB_E_CANTSCROLLBACKWARDS; DBROWOFFSET iRowsetTemp = m_iRowset; // Cache the current rowset // Determine if this row is deleted or not. size_t lBookmarkIndex = (size_t)(*pBookmark); // -1 is uniform value for a deleted bookmark if( cbBookmark != 1 ) { if (m_rgBookmarks[lBookmarkIndex] == -1) { m_iRowset = iRowsetTemp; return DB_E_BADBOOKMARK; } else { m_iRowset = m_rgBookmarks[lBookmarkIndex]; } } if ((cbBookmark == 1) && (*pBookmark == DBBMK_FIRST)) m_iRowset = 1; if ((cbBookmark == 1) && (*pBookmark == DBBMK_LAST)) m_iRowset = (DBROWOFFSET)pT->m_rgRowData.GetCount(); // Set the start position to m_iRowset + lRowsOffset m_iRowset += lRowsOffset; if (lRowsOffset >= 0) (cRows >= 0) ? m_iRowset -= 1 : m_iRowset +=0; else (cRows >= 0) ? m_iRowset -= 1 : m_iRowset +=0; // (lRowsOffset >= 0) ? m_iRowset -= 1 : m_iRowset += 1; // BUG: If we get DBBMK_FIRST and lRowsOffset == -1, then we set // m_iRowset to 0xFFFFFFFF. if (m_iRowset < 0 || m_iRowset > (DBROWOFFSET)pT->m_rgRowData.GetCount()) { m_iRowset = iRowsetTemp; return DB_S_ENDOFROWSET; } // Call IRowsetImpl::GetNextRows to actually get the rows. m_bExternalFetch = true; hr = GetNextRows(hReserved2, 0, cRows, pcRowsObtained, prghRows); m_bExternalFetch = false; // If we have multiple rows fetched, return one event, per the specification // containing all rows activated. if (*pcRowsObtained >= 1) { __if_exists(T::Fire_OnRowsetChange) { CAtlArray rgActivated; for (ULONG ulActivated = 0; ulActivated < *pcRowsObtained; ulActivated++) { // This is a bit of an assumption that all newly activated // rows would have the ref count as 1. Another way to solve this // problem would be to modify the signature of CreateRow to take // a CAtlArray as a parameter and store the activated rows. RowClass* pActiveRow; bool bFound = m_rgRowHandles.Lookup((*prghRows)[ulActivated], pActiveRow); if ( bFound && pActiveRow != NULL && pActiveRow->m_dwRef == 1) { _ATLTRY { rgActivated.Add((*prghRows)[ulActivated]); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } } } if (rgActivated.GetCount() > 0) { pT->Fire_OnRowChange(pT, (DBCOUNTITEM)rgActivated.GetCount(), rgActivated.GetData(), DBREASON_ROW_ACTIVATE, DBEVENTPHASE_DIDEVENT, FALSE); } } } m_iRowset = iRowsetTemp; return hr; } STDMETHOD (GetRowsByBookmark)( _In_ HCHAPTER /*hReserved*/, _In_ DBCOUNTITEM cRows, _In_count_(cRows) const DBBKMARK rgcbBookmarks[], _In_count_(cRows) const BYTE* rgpBookmarks[], _Out_cap_(cRows) HROW rghRows[], _Out_opt_cap_(cRows) DBROWSTATUS rgRowStatus[]) { HRESULT hr = S_OK; ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetLocateImpl::GetRowsByBookmark\n")); bool bErrors = false; bool bSuccess = false; T* pT = (T*)this; __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } T::ObjectLock cab(pT); if (rgcbBookmarks == NULL || rgpBookmarks == NULL || rghRows == NULL) return E_INVALIDARG; if (cRows == 0) return S_OK; // No rows fetched in this case. memset(rghRows, 0, sizeof(HROW)*cRows); for (size_t l=0; l rgActivated; for (size_t ulActivated = 0; ulActivated < cRows; ulActivated++) { // This is a bit of an assumption that all newly activated // rows would have the ref count as 1. Another way to solve this // problem would be to modify the signature of CreateRow to take // a CAtlArray as a parameter and store the activated rows. RowClass* pActiveRow; bool bFound = m_rgRowHandles.Lookup(rghRows[ulActivated], pActiveRow); if (bFound && pActiveRow != NULL && pActiveRow->m_dwRef == 1) { _ATLTRY { rgActivated.Add(rghRows[ulActivated]); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } } } if (rgActivated.GetCount() > 0) { pT->Fire_OnRowChange(pT, (DBCOUNTITEM)rgActivated.GetCount(), rgActivated.GetData(), DBREASON_ROW_ACTIVATE, DBEVENTPHASE_DIDEVENT, FALSE); } } if (bErrors) return (bSuccess != false) ? DB_S_ERRORSOCCURRED : DB_E_ERRORSOCCURRED; else return hr; } STDMETHOD (Hash)( _In_ HCHAPTER /*hReserved*/, _In_ DBBKMARK cBookmarks, _In_count_(cBookmarks) const DBBKMARK rgcbBookmarks[], _In_count_(cBookmarks) const BYTE* rgpBookmarks[], _Out_cap_(cBookmarks) DBHASHVALUE rgHashedValues[], _Out_opt_cap_(cBookmarks) DBROWSTATUS rgBookmarkStatus[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetLocateImpl::Hash\n")); bool bSuccess = false; bool bErrors = false; __if_exists(T::Fire_OnRowChange) { T* pT = (T*)this; // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } HRESULT hr = E_FAIL; // validate parameters if (cBookmarks != 0 && (rgcbBookmarks == NULL || rgpBookmarks == NULL || rgHashedValues == NULL)) return E_INVALIDARG; // hash values for (size_t i=0; i m_rgBookmarks; // Implementation protected: HRESULT ValidateBookmark( _In_ DBBKMARK cbBookmark, _In_ const BYTE* pBookmark) { T* pT = (T*)this; if (cbBookmark == 0 || pBookmark == NULL) return E_INVALIDARG; // All of our bookmarks are DBBKMARKs, if they are anything other than // sizeof(DBBKMARK) then we have an invalid bookmark if ((cbBookmark != sizeof(DBBKMARK)) && (cbBookmark != 1)) { ATLTRACE(atlTraceDBProvider, 2, _T("Bookmarks are invalid length, should be DBBKMARKs")); return DB_E_BADBOOKMARK; } // If our bookmark is a special (i.e. cbBookmark == 1), then it should // be one of the accepted values. if ((cbBookmark == 1) && (*pBookmark != DBBMK_FIRST && *pBookmark != DBBMK_LAST)) { ATLTRACE(atlTraceDBProvider, 2, _T("Bookmark is invalid")); return DB_E_BADBOOKMARK; } // If the contents of our bookmarks are less than 0 or greater than // rowcount, then they are invalid DBCOUNTITEM nRows = (ULONG_PTR)pT->m_rgBookmarks.GetCount(); DBROWOFFSET lBookmarkIndex = (DBROWOFFSET)(*pBookmark); if (lBookmarkIndex <= -1 || lBookmarkIndex > (DBROWOFFSET)nRows ) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetLocateImpl::Bookmark has invalid range")); return DB_E_BADBOOKMARK; } return S_OK; } }; /////////////////////////////////////////////////////////////////////////// // IRowsetIdentityImpl template class ATL_NO_VTABLE IRowsetIdentityImpl : public IRowsetIdentity { public: STDMETHOD(IsSameRow)( _In_ HROW hThisRow, _In_ HROW hThatRow) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetIdentityImpl::IsSameRow\n")); T* pT = (T*)this; // Validate row handles RowClass* pRow1; if( ! pT->m_rgRowHandles.Lookup((RowClass::KeyType)hThisRow, pRow1) ) return DB_E_BADROWHANDLE; RowClass* pRow2; if( ! pT->m_rgRowHandles.Lookup((RowClass::KeyType)hThatRow, pRow2) ) return DB_E_BADROWHANDLE; if (pRow1->m_status == DBPENDINGSTATUS_DELETED || pRow2->m_status == DBPENDINGSTATUS_DELETED) return DB_E_DELETEDROW; HRESULT hr = pRow1->Compare(pRow2); __if_not_exists(T::InsertRow) { return hr; } __if_exists(T::InsertRow) { if (hr != S_OK) return hr; // Add one more test for providers who support IRowsetChange or Update. // It is possible for a series of inserts & deletes to occur to make // CSimpleRow appear as if it were equivalent (when it is not). To // fix this, we've added an m_iOriginalRowset variable that never gets // changed. return (pRow1->m_iOriginalRowset == pRow2->m_iOriginalRowset) ? S_OK : S_FALSE; } }; }; template class ATL_NO_VTABLE IInternalConnectionImpl : public IInternalConnection { public: STDMETHOD(AddConnection)() { T* pT = (T*)this; T::_ThreadModel::Increment(&pT->m_cSessionsOpen); return S_OK; } STDMETHOD(ReleaseConnection)() { T* pT = (T*)this; T::_ThreadModel::Decrement(&pT->m_cSessionsOpen); return S_OK; } }; template class ATL_NO_VTABLE IInternalCommandConnectionImpl : public IInternalConnection { public: STDMETHOD(AddConnection)() { T* pT = (T*)this; T::_ThreadModel::Increment(&pT->m_cRowsetsOpen); return S_OK; } STDMETHOD(ReleaseConnection)() { T* pT = (T*)this; T::_ThreadModel::Decrement(&pT->m_cRowsetsOpen); return S_OK; } }; template class ATL_NO_VTABLE IObjectWithSiteSessionImpl : public IObjectWithSiteImpl< T > { public: virtual ~IObjectWithSiteSessionImpl() { CComPtr pConn; if (m_spUnkSite != NULL) { if (SUCCEEDED(m_spUnkSite->QueryInterface(__uuidof(IInternalConnection), (void**)&pConn))) pConn->ReleaseConnection(); } } STDMETHOD(SetSite)(_Inout_opt_ IUnknown* pCreator) { HRESULT hr = S_OK; T* pT = (T*)this; pT->Lock(); m_spUnkSite = pCreator; pT->Unlock(); CComPtr pConn; if (pCreator != NULL) { hr = pCreator->QueryInterface(__uuidof(IInternalConnection), (void**)&pConn); if (SUCCEEDED(hr)) hr = pConn->AddConnection(); } return hr; } LONG m_cSessionsOpen; }; template class ATL_NO_VTABLE IRowsetCreatorImpl : public IObjectWithSiteImpl< T > { public: virtual ~IRowsetCreatorImpl() { CComPtr pConn; if (m_spUnkSite != NULL) { if (SUCCEEDED(m_spUnkSite->QueryInterface(__uuidof(IInternalConnection), (void**)&pConn))) pConn->ReleaseConnection(); } } STDMETHOD(SetSite)(_Inout_opt_ IUnknown* pCreator) { T* pT = (T*)this; HRESULT hr = S_OK; pT->Lock(); m_spUnkSite = pCreator; pT->Unlock(); CComVariant varPropScroll, varPropFetch, varPropRemove, varPropUpdate; HRESULT hrProps = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_CANSCROLLBACKWARDS, &varPropScroll); if (SUCCEEDED(hrProps)) pT->m_bCanScrollBack = (varPropScroll.boolVal != ATL_VARIANT_FALSE); hrProps = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_CANFETCHBACKWARDS, &varPropFetch); if (SUCCEEDED(hrProps)) pT->m_bCanFetchBack = (varPropFetch.boolVal != ATL_VARIANT_FALSE); hrProps = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_REMOVEDELETED, &varPropRemove); if (SUCCEEDED(hrProps)) pT->m_bRemoveDeleted = (varPropRemove.boolVal != ATL_VARIANT_FALSE); hrProps = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetUpdate, &varPropUpdate); if (SUCCEEDED(hrProps)) pT->m_bIRowsetUpdate = (varPropUpdate.boolVal != ATL_VARIANT_FALSE); CComPtr pConn; if (pCreator != NULL) { if (SUCCEEDED(pCreator->QueryInterface(__uuidof(IInternalConnection), (void**)&pConn))) hr = pConn->AddConnection(); } return hr; } LONG m_cRowsetsOpen; }; // IRowsetInfoImpl template class ATL_NO_VTABLE IRowsetInfoImpl : public IRowsetInfo, public CUtlProps { public: static UPROPSET* _GetPropSet( _Out_opt_ ULONG* pNumPropSets, _Out_ ULONG* pcElemPerSupported, _Inout_opt_ UPROPSET* pSet = NULL, _Out_opt_ GUID* pguidSet = NULL) { //protects from recurrence call this method (compiler warning C4717) ATLASSERT(&IRowsetInfoImpl::_GetPropSet != &PropClass::_GetPropSet); if (&IRowsetInfoImpl::_GetPropSet != &PropClass::_GetPropSet) { return PropClass::_GetPropSet(pNumPropSets, pcElemPerSupported, pSet, pguidSet); } return NULL; } STDMETHOD(GetProperties)( _In_ const ULONG cPropertyIDSets, _In_count_(cPropertyIDSets) const DBPROPIDSET rgPropertyIDSets[], _Out_ ULONG *pcPropertySets, _Out_ _Deref_post_opt_cap_(*pcPropertySets) DBPROPSET **prgPropertySets) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetInfoImpl::GetProperties\n")); // IRowsetInfo can't return PROPERTIESINERROR. Therefore, disable // checking for it. Instead, treat it as any normal property set. m_dwFlags |= ~ARGCHK_PROPERTIESINERROR; HRESULT hr = GetPropertiesArgChk(cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets); if(SUCCEEDED(hr)) { // Scan property sets to allow user defined properies ULONG ulPropSets = 0; ULONG ulPropElems = 0; ULONG ulPropInits = 0; UPROPSET* pSetA = NULL; UPROPSET* pSetTemp = NULL; ULONG l=0; ULONG cSets = (ULONG)(ULONG_PTR)T::_GetPropSet(NULL, &ulPropElems); CTempBuffer tmpBuffer; pSetA = tmpBuffer.Allocate(cSets); if (pSetA == NULL) return E_OUTOFMEMORY; // We shouldn't get this but... pSetTemp = T::_GetPropSet(&ulPropSets, &ulPropElems, pSetA); typedef const GUID* PCGUID; for(l=0; l tmpBuffer2; PCGUID* ppGuid = tmpBuffer2.Allocate(ulPropInits); if (ppGuid == NULL) return E_OUTOFMEMORY; ulPropInits = 0; for (l=0; l::GetProperties(cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets, ulPropInits, ppGuid); } else return hr; } OUT_OF_LINE ATLCOLUMNINFO* InternalGetColumnInfo(_Out_ DBORDINAL* pcCols) { return T::GetColumnInfo((T*)this, pcCols); } ATLPREFAST_SUPPRESS(6387) STDMETHOD(GetReferencedRowset)( _In_ DBORDINAL iOrdinal, _In_ REFIID riid, _Deref_out_ IUnknown **ppReferencedRowset) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetInfoImpl::GetReferencedRowset\n")); DBORDINAL cCols=0; // Check Arguments if( ppReferencedRowset == NULL ) { ATLTRACE(atlTraceDBProvider, 0, _T("IRowsetInfoImpl::GetReferencedRowset : Error NULL IUnk output Param\n")); return E_INVALIDARG; } *ppReferencedRowset = NULL; // Check to see if column in question is a bookmark ATLCOLUMNINFO* pColInfo = InternalGetColumnInfo(&cCols); DBORDINAL iColInfo; for (iColInfo = 0; iColInfo < cCols && iOrdinal != pColInfo[iColInfo].iOrdinal; iColInfo++); if (iColInfo == cCols) return DB_E_BADORDINAL; ATLCOLUMNINFO* pColCur = &(pColInfo[iColInfo]); if ((pColCur->dwFlags & DBCOLUMNFLAGS_ISBOOKMARK) == 0) return DB_E_NOTAREFERENCECOLUMN; // Query for requested interface return QueryInterface(riid, (void**)ppReferencedRowset); } ATLPREFAST_UNSUPPRESS() STDMETHOD(GetSpecification)( _In_ REFIID riid, _Deref_out_ IUnknown **ppSpecification) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetInfoImpl::GetSpecification\n")); if (ppSpecification == NULL) return E_INVALIDARG; T* pT = (T*) this; T::ObjectLock cab(pT); ATLASSERT(pT->m_spUnkSite != NULL); return pT->m_spUnkSite->QueryInterface(riid, (void**)ppSpecification); } }; /* template > class CUpdateArray : public ContainedArray { public: void RemoveAll() { ContainedArray::RemoveAll(); m_rgRowLink.RemoveAll(); } BOOL Add(Storage& rStorage) { if (ContainedArray::Add(rStorage)) { if (!m_rgRowLink.Add(GetCount() - 1)) { RemoveAt(GetCount() - 1); return FALSE; } return TRUE; } return FALSE; } BOOL RemoveAt(int nIndex) { if (ContainedArray::RemoveAt(m_rgRowLink[nIndex])) { // Decrement any links following the current row for (long l=nIndex+1; l= 0 && nIndex < GetCount()); return ContainedArray::operator[](m_rgRowLink[nIndex]); } const ContainedArray::_ArrayElementType& operator[] (int nIndex) const { ATLASSERT(nIndex >= 0 && nIndex < GetCount()); return ContainedArray::operator[](m_rgRowLink[nIndex]); } CSimpleValArray m_rgRowLink; }; */ class CComSharedMutex { public: CComSharedMutex() { m_lInterlockedVariable = -1; }; inline bool IncrementMutex() { long lAvailable = ::InterlockedIncrement(&m_lInterlockedVariable); if (lAvailable > 0) { // Mutex is held, decrement and return false DecrementMutex(); return false; } else return true; }; inline void DecrementMutex() { ::InterlockedDecrement(&m_lInterlockedVariable); }; long m_lInterlockedVariable; }; template class IRowsetNotifyCP : public IConnectionPointImpl, public ReentrantEventSync { public: HRESULT Fire_OnFieldChange( _Inout_ IRowset* pRowset, _In_ HROW hRow, _In_ DBORDINAL cColumns, _In_count_(cColumns) DBORDINAL* rgColumns, _In_ DBREASON eReason, _In_ DBEVENTPHASE ePhase, _In_ BOOL fCantDeny) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetNotifyCP::Fire_OnFieldChange\n")); IncrementMutex(); // Lock the event handler so other's can't call methods HRESULT ret = S_OK; T* pT = static_cast(this); int nConnectionIndex; int nConnections = m_vec.GetSize(); for (nConnectionIndex = 0; nConnectionIndex < nConnections; nConnectionIndex++) { pT->Lock(); CComPtr sp = m_vec.GetAt(nConnectionIndex); pT->Unlock(); IRowsetNotify* pIRowsetNotify = reinterpret_cast(sp.p); if (pIRowsetNotify != NULL) ret = pIRowsetNotify->OnFieldChange(pRowset, hRow, cColumns, rgColumns, eReason, ePhase, fCantDeny); switch(ePhase) { case DBEVENTPHASE_OKTODO: if (ret == S_FALSE && fCantDeny == FALSE) { // if we get an S_FALSE back, a consumer has vetoed the // request. In this case, we should send a FAILEDTODO // to ONLY those consumers already notified. for (int nFailedIndex = 0; nFailedIndex <= nConnectionIndex; nFailedIndex++) { pT->Lock(); CComPtr spFailed = m_vec.GetAt(nFailedIndex); pT->Unlock(); IRowsetNotify* pIFailedNotify = reinterpret_cast(spFailed.p); if (pIFailedNotify != NULL) pIFailedNotify->OnFieldChange(pRowset, hRow, cColumns, rgColumns, eReason, DBEVENTPHASE_FAILEDTODO, FALSE); } // Terminate the loop as no further consumers should be // notified. DecrementMutex(); return ret; } else { if (ret != S_OK) ret = S_OK; } break; case DBEVENTPHASE_ABOUTTODO: case DBEVENTPHASE_SYNCHAFTER: if (ret == S_FALSE && fCantDeny == FALSE) { Fire_OnFieldChange(pRowset, hRow, cColumns, rgColumns, eReason, DBEVENTPHASE_FAILEDTODO, FALSE); DecrementMutex(); return ret; } else { if (ret != S_OK) ret = S_OK; } break; case DBEVENTPHASE_FAILEDTODO: case DBEVENTPHASE_DIDEVENT: break; // Nothing todo default: ATLTRACE(atlTraceDBProvider, 0, _T("IRowsetNotifyCP::Fire_OnFieldChange: Unknown Phase requested\n")); ATLASSERT(FALSE); DecrementMutex(); return E_FAIL; }; } DecrementMutex(); if( ret != S_OK && ret != S_FALSE ) ret = S_OK; return ret; } HRESULT Fire_OnRowChange( _Inout_ IRowset* pRowset, _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _In_ DBREASON eReason, _In_ DBEVENTPHASE ePhase, _In_ BOOL fCantDeny) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetNotifyCP::Fire_OnRowChange\n")); IncrementMutex(); // Lock the handler so other's can't call methods HRESULT ret = S_OK; T* pT = static_cast(this); int nConnectionIndex; int nConnections = m_vec.GetSize(); for (nConnectionIndex = 0; nConnectionIndex < nConnections; nConnectionIndex++) { pT->Lock(); CComPtr sp = m_vec.GetAt(nConnectionIndex); pT->Unlock(); IRowsetNotify* pIRowsetNotify = reinterpret_cast(sp.p); if (pIRowsetNotify != NULL) { ret = pIRowsetNotify->OnRowChange(pRowset, cRows, rghRows, eReason, ePhase, fCantDeny); } switch(ePhase) { case DBEVENTPHASE_OKTODO: if (ret == S_FALSE && fCantDeny == FALSE) { // if we get an S_FALSE back, a consumer has vetoed the // request. In this case, we should send a FAILEDTODO // to ONLY those consumers already notified. for (int nFailedIndex = 0; nFailedIndex <= nConnectionIndex; nFailedIndex++) { pT->Lock(); CComPtr spFailed = m_vec.GetAt(nFailedIndex); pT->Unlock(); IRowsetNotify* pIFailedNotify = reinterpret_cast(spFailed.p); if (pIFailedNotify != NULL) pIFailedNotify->OnRowChange(pRowset, cRows, rghRows, eReason, DBEVENTPHASE_FAILEDTODO, FALSE); } // Terminate the loop as no further consumers should be // notified. DecrementMutex(); return ret; } break; case DBEVENTPHASE_SYNCHAFTER: case DBEVENTPHASE_ABOUTTODO: if (ret == S_FALSE && fCantDeny == FALSE) { Fire_OnRowChange(pRowset, cRows, rghRows, eReason, DBEVENTPHASE_FAILEDTODO, FALSE); DecrementMutex(); return ret; } break; case DBEVENTPHASE_FAILEDTODO: case DBEVENTPHASE_DIDEVENT: break; // Nothing todo default: ATLTRACE(atlTraceDBProvider, 0, _T("IRowsetNotifyCP::Fire_OnRowChange: Unknown Phase requested\n")); ATLASSERT(FALSE); DecrementMutex(); return E_FAIL; }; } DecrementMutex(); if( ret != S_OK && ret != S_FALSE ) ret = S_OK; return ret; } HRESULT Fire_OnRowsetChange( _Inout_ IRowset* pRowset, _In_ DBREASON eReason, _In_ DBEVENTPHASE ePhase, _In_ BOOL fCantDeny) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetNotifyCP::Fire_OnRowsetChange\n")); IncrementMutex(); // Lock the handler so others can't call methods HRESULT ret = S_OK; T* pT = static_cast(this); int nConnectionIndex; int nConnections = m_vec.GetSize(); for (nConnectionIndex = 0; nConnectionIndex < nConnections; nConnectionIndex++) { pT->Lock(); CComPtr sp = m_vec.GetAt(nConnectionIndex); pT->Unlock(); IRowsetNotify* pIRowsetNotify = reinterpret_cast(sp.p); if (pIRowsetNotify != NULL) ret = pIRowsetNotify->OnRowsetChange(pRowset, eReason, ePhase, fCantDeny); switch(ePhase) { case DBEVENTPHASE_OKTODO: if (ret == S_FALSE && fCantDeny == FALSE) { // if we get an S_FALSE back, a consumer has vetoed the // request. In this case, we should send a FAILEDTODO // to ONLY those consumers already notified. for (int nFailedIndex = 0; nFailedIndex <= nConnectionIndex; nFailedIndex++) { pT->Lock(); CComPtr spFailed = m_vec.GetAt(nFailedIndex); pT->Unlock(); IRowsetNotify* pIFailedNotify = reinterpret_cast(spFailed.p); if (pIFailedNotify != NULL) pIFailedNotify->OnRowsetChange(pRowset, eReason, DBEVENTPHASE_FAILEDTODO, FALSE); } // Terminate the loop as no further consumers should be // notified. DecrementMutex(); return ret; } break; case DBEVENTPHASE_ABOUTTODO: case DBEVENTPHASE_SYNCHAFTER: if (ret == S_FALSE && fCantDeny == FALSE) { Fire_OnRowsetChange(pRowset, eReason, DBEVENTPHASE_FAILEDTODO, FALSE); DecrementMutex(); return ret; } break; case DBEVENTPHASE_FAILEDTODO: case DBEVENTPHASE_DIDEVENT: break; // Nothing todo default: ATLTRACE(atlTraceDBProvider, 0, _T("IRowsetNotifyCP::Fire_OnRowChange: Unknown Phase requested\n")); ATLASSERT(FALSE); DecrementMutex(); return E_FAIL; }; } DecrementMutex(); if( ret != S_OK && ret != S_FALSE ) ret = S_OK; return ret; } }; template , class RowsetInterface = IRowsetImpl < T, IRowset >, class RowClass = CSimpleRow > class CRowsetBaseImpl : public IAccessorImpl, public IRowsetIdentityImpl, public IRowsetCreatorImpl, public IColumnsInfoImpl, public IConvertTypeImpl, public RowsetInterface { public: HRESULT NameFromDBID( _In_ DBID* pDBID, _Inout_ CComBSTR& bstr, _In_ bool bIndex) { if (pDBID->uName.pwszName != NULL) { ATLTRY( bstr = pDBID->uName.pwszName ); if (!bstr) return E_OUTOFMEMORY; return S_OK; } return (bIndex) ? DB_E_NOINDEX : DB_E_NOTABLE; } HRESULT GetCommandFromID( _In_opt_ DBID* pTableID, _In_opt_ DBID* pIndexID) { if (pTableID == NULL && pIndexID == NULL) return E_INVALIDARG; if (pTableID != NULL && pTableID->eKind == DBKIND_NAME) { HRESULT hr = NameFromDBID(pTableID, m_strCommandText, true); if (FAILED(hr)) return hr; if (pIndexID != NULL) { if (pIndexID->eKind == DBKIND_NAME) { hr = NameFromDBID(pIndexID, m_strIndexText, false); if (FAILED(hr)) { m_strCommandText.Empty(); return hr; } } else { m_strCommandText.Empty(); return DB_E_NOINDEX; } } return S_OK; } if (pIndexID != NULL && pIndexID->eKind == DBKIND_NAME) return NameFromDBID(pIndexID, m_strIndexText, false); return S_OK; } HRESULT ValidateCommandID( _In_opt_ DBID* pTableID, _In_opt_ DBID* pIndexID) { HRESULT hr = S_OK; if (pTableID != NULL) { hr = CUtlProps::IsValidDBID(pTableID); if (hr != S_OK) return hr; // Check for a NULL TABLE ID (where its a valid pointer but NULL) if ((pTableID->eKind == DBKIND_GUID_NAME || pTableID->eKind == DBKIND_NAME || pTableID->eKind == DBKIND_PGUID_NAME) && pTableID->uName.pwszName == NULL) return DB_E_NOTABLE; } if (pIndexID != NULL) hr = CUtlProps::IsValidDBID(pIndexID); return hr; } HRESULT SetCommandText( _In_opt_ DBID* pTableID, _In_opt_ DBID* pIndexID) { T* pT = (T*)this; HRESULT hr = pT->ValidateCommandID(pTableID, pIndexID); if (FAILED(hr)) return hr; hr = pT->GetCommandFromID(pTableID, pIndexID); return hr; } _Ret_count_x_(*pcCols) static ATLCOLUMNINFO* GetColumnInfo( _In_opt_ _Pre_opt_bytecount_x_(sizeof(T)) T* pv, _Out_ DBORDINAL* pcCols) { return Storage::GetColumnInfo(pv,pcCols); } CComBSTR m_strCommandText; CComBSTR m_strIndexText; ArrayType m_rgRowData; }; template , class RowClass = CSimpleRow, class RowsetInterface = IRowsetImpl < T, IRowset > > class CRowsetImpl : public CComObjectRootEx, public CRowsetBaseImpl, public IRowsetInfoImpl { public: typedef CRowsetImpl< T, Storage, CreatorClass, ArrayType, RowClass, RowsetInterface> _RowsetBaseClass; typedef ArrayType _RowsetArrayType; typedef Storage _StorageClass; typedef CreatorClass _RowsetCreatorClass; BEGIN_COM_MAP(CRowsetImpl) COM_INTERFACE_ENTRY(IRowsetInfo) COM_INTERFACE_ENTRY(IAccessor) COM_INTERFACE_ENTRY(IObjectWithSite) COM_INTERFACE_ENTRY(IColumnsInfo) COM_INTERFACE_ENTRY(IConvertType) COM_INTERFACE_ENTRY(IRowsetIdentity) COM_INTERFACE_ENTRY(IRowset) END_COM_MAP() HRESULT FinalConstruct() { HRESULT hr = IAccessorImpl::FinalConstruct(); if (FAILED(hr)) return hr; return CConvertHelper::FinalConstruct(); } void FinalRelease() { m_rgRowData.RemoveAll(); IAccessorImpl::FinalRelease(); __if_exists(T::Fire_OnRowsetChange) { T* pT = (T*)this; pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_RELEASE, DBEVENTPHASE_DIDEVENT, TRUE); } } }; template , class RowClass = CSimpleRow, class RowsetInterface = IRowsetImpl < T, IRowset > > class CSchemaRowsetImpl : public CComObjectRootEx, public CRowsetBaseImpl, public IRowsetInfoImpl { public: typedef CSchemaRowsetImpl< T, Storage, CreatorClass, ArrayType, RowClass, RowsetInterface> _RowsetBaseClass; typedef ArrayType _RowsetArrayType; typedef Storage _StorageClass; typedef CreatorClass _RowsetCreatorClass; BEGIN_COM_MAP(CSchemaRowsetImpl) COM_INTERFACE_ENTRY(IRowsetInfo) COM_INTERFACE_ENTRY(IAccessor) COM_INTERFACE_ENTRY(IObjectWithSite) COM_INTERFACE_ENTRY(IColumnsInfo) COM_INTERFACE_ENTRY(IConvertType) COM_INTERFACE_ENTRY(IRowsetIdentity) COM_INTERFACE_ENTRY(IRowset) END_COM_MAP() HRESULT FinalConstruct() { HRESULT hr = IAccessorImpl::FinalConstruct(); if (FAILED(hr)) return hr; return CConvertHelper::FinalConstruct(); } void FinalRelease() { m_rgRowData.RemoveAll(); __if_exists(T::Fire_OnRowsetChange) { T* pT = (T*)this; pT->Fire_OnRowsetChange(pT, DBREASON_ROWSET_RELEASE, DBEVENTPHASE_DIDEVENT, TRUE); } } }; template class CErrorReporterHelper { public: HRESULT PostError( _In_ HRESULT hrErr, _In_ IID* piid) { HRESULT hr = S_OK; if (piid == NULL) return E_INVALIDARG; CComPtr spCrtErrInfo; CComPtr spIErrorInfo; CComPtr spIErrorRecords; hr = CreateErrorInfo(&spCrtErrInfo); if (SUCCEEDED(hr)) { ERRORINFO errorinfo; memset(&errorinfo, 0, sizeof(ERRORINFO)); errorinfo.clsid = *pguidProvider; errorinfo.dispid = NULL; errorinfo.dwMinor = 0; errorinfo.hrError = hrErr; errorinfo.iid = *piid; spCrtErrInfo->SetGUID(errorinfo.iid); spCrtErrInfo->SetSource(L"Provider PROGID"); spCrtErrInfo->SetDescription(L"Error Description"); spCrtErrInfo->SetHelpFile(L"provider.hlp"); spCrtErrInfo->SetHelpContext(1); //Obtain the error object or create a new one if none exists if ( FAILED(GetErrorInfo(0, &spIErrorInfo)) || ( spIErrorInfo == NULL ) ) { hr = spIErrorInfo.CoCreateInstance(CLSID_EXTENDEDERRORINFO); if( FAILED(hr)) return hr; } // Obtain the IErrorRecord Interface hr = spIErrorInfo->QueryInterface(&spIErrorRecords); if( SUCCEEDED(hr)) { hr = spIErrorRecords->AddErrorRecord(&errorinfo, 0, NULL, spCrtErrInfo, 0); if( FAILED(hr)) return hr; } } if( spIErrorInfo != NULL) SetErrorInfo(0, spIErrorInfo); return hr; } }; struct ATLERRORINFO { ERRORINFO* pInfo; DISPPARAMS dispparams; CComPtr spCustError; DWORD dwLookupID; }; template class IErrorRecordsImpl : public IErrorRecords { public: STDMETHOD(AddErrorRecord)( _In_ ERRORINFO *pErrorInfo, _In_ DWORD dwLookupID, _In_ DISPPARAMS *pdispparams, _In_ IUnknown *punkCustomError, _In_ DWORD) { ATLTRACE(atlTraceDBProvider, 2, _T("IErrorRecordsImpl::AddErrorRecord\n")); if (pErrorInfo == NULL) return E_INVALIDARG; ATLERRORINFO err; err.pInfo = pErrorInfo; err.dispparams = *pdispparams; err.spCustError = punkCustomError; err.dwLookupID = dwLookupID; //if (!m_rgErrors.Add(err)) // return E_OUTOFMEMORY; _ATLTRY { m_rgErrors.Add(err); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_OUTOFMEMORY; } return S_OK; } STDMETHOD(GetBasicErrorInfo)( _In_ ULONG ulRecordNum, _In_ ERRORINFO *pErrorInfo) { ATLTRACE(atlTraceDBProvider, 2, _T("IErrorRecordsImpl::GetBasicErrorInfo\n")); if (pErrorInfo == NULL) return E_INVALIDARG; if (ulRecordNum >= m_rgErrors.GetCount()) return DB_E_BADRECORDNUM; *pErrorInfo = *(m_rgErrors[ulRecordNum].pInfo); return S_OK; } STDMETHOD(GetCustomErrorObject)( _In_ ULONG ulRecordNum, _In_ REFIID riid, _Deref_out_ IUnknown **ppObject) { ATLTRACE(atlTraceDBProvider, 2, _T("IErrorRecordsImpl::GetCustomErrorObject\n")); if (ppObject == NULL) return E_INVALIDARG; if (ulRecordNum >= m_rgErrors.GetCount()) return DB_E_BADRECORDNUM; CComPtr spUnkCust; spUnkCust = m_rgErrors[ulRecordNum].spCustError; return spUnkCust->QueryInterface(riid, (void**)ppObject); } STDMETHOD(GetErrorInfo)( _In_ ULONG ulRecordNum, _In_ LCID, _Deref_out_ IErrorInfo **ppErrorInfo) { ATLTRACE(atlTraceDBProvider, 2, _T("IErrorRecordsImpl::GetErrorInfo\n")); if (ppErrorInfo == NULL) return E_INVALIDARG; if (ulRecordNum >= m_rgErrors.GetCount()) return DB_E_BADRECORDNUM; CComPtr spErrorInfo; if (FAILED(CreateErrorInfo(&spErrorInfo))) return E_OUTOFMEMORY; ERRORINFO& rInfo = *(m_rgErrors[ulRecordNum].pInfo); T* pT = (T*)this; spErrorInfo->SetDescription(pT->GetErrorDescriptionString(rInfo)); spErrorInfo->SetGUID(pT->GetErrorGUID(rInfo)); spErrorInfo->SetHelpContext(pT->GetErrorHelpContext(rInfo)); spErrorInfo->SetHelpFile(pT->GetErrorHelpFile(rInfo)); spErrorInfo->SetSource(pT->GetErrorSource(rInfo)); return spErrorInfo->QueryInterface(__uuidof(IErrorInfo), (void**)ppErrorInfo); } STDMETHOD(GetErrorParameters)( _In_ ULONG ulRecordNum, _Out_ DISPPARAMS *pdispparams) { ATLTRACE(atlTraceDBProvider, 2, _T("IErrorRecordsImpl::GetErrorParameters\n")); if (pdispparams == NULL) return E_INVALIDARG; if (ulRecordNum >= m_rgErrors.GetCount()) return DB_E_BADRECORDNUM; *pdispparams = m_rgErrors[ulRecordNum].dispparams; return S_OK; } STDMETHOD(GetRecordCount)(_Out_ ULONG *pcRecords) { ATLTRACE(atlTraceDBProvider, 2, _T("IErrorRecordsImpl::GetRecordCount\n")); if (pcRecords == NULL) { return E_INVALIDARG; } #ifdef _WIN64 size_t cRecords = m_rgErrors.GetCount(); if (cRecords > ULONG_MAX) { *pcRecords = 0; return E_FAIL; } *pcRecords = (ULONG)cRecords; #else *pcRecords = m_rgErrors.GetCount(); #endif return S_OK; } LPOLESTR GetErrorDescriptionString(_In_ ERRORINFO&) { return OLESTR("The Error Description String"); } REFGUID GetErrorGUID(_In_ ERRORINFO&) { return GUID_NULL; } DWORD GetErrorHelpContext(_In_ ERRORINFO&) { return 0; } LPOLESTR GetErrorHelpFile(_In_ ERRORINFO&) { return OLESTR("The Error Help File"); } LPOLESTR GetErrorSource(_In_ ERRORINFO&) { return OLESTR("The ErrorInfo"); } CAtlArray m_rgErrors; }; class CTABLESRow { public: WCHAR m_szCatalog[129]; WCHAR m_szSchema[129]; WCHAR m_szTable[129]; WCHAR m_szType[129]; WCHAR m_szDesc[129]; GUID m_guid; ULONG m_ulPropID; DATE m_DateCreated; DATE m_DateModified; CTABLESRow() { Checked::wcscpy_s(m_szCatalog, _countof(m_szCatalog), L""); Checked::wcscpy_s(m_szSchema, _countof(m_szSchema), L""); Checked::wcscpy_s(m_szTable, _countof(m_szTable), L""); Checked::wcscpy_s(m_szType, _countof(m_szType), L""); Checked::wcscpy_s(m_szDesc, _countof(m_szDesc), L""); m_guid = GUID_NULL; m_ulPropID = 0; m_DateCreated = 0.0; m_DateModified = 0.0; } BEGIN_PROVIDER_COLUMN_MAP(CTABLESRow) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_CATALOG", 1, m_szCatalog) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_SCHEMA", 2, m_szSchema) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_NAME", 3, m_szTable) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_TYPE", 4, m_szType) PROVIDER_COLUMN_ENTRY_PS("TABLE_GUID", 5, 0xFF, 0xFF, m_guid) PROVIDER_COLUMN_ENTRY_WSTR("DESCRIPTION", 6, m_szDesc) PROVIDER_COLUMN_ENTRY_PS("TABLE_PROPID", 7, 10, 0xFF, m_ulPropID) PROVIDER_COLUMN_ENTRY_TYPE_PS("DATE_CREATED", 8, DBTYPE_DATE, 0xFF, 0xFF, m_DateCreated) PROVIDER_COLUMN_ENTRY_TYPE_PS("DATE_MODIFIED", 9, DBTYPE_DATE, 0xFF, 0xFF, m_DateModified) END_PROVIDER_COLUMN_MAP() }; class CCOLUMNSRow { public: WCHAR m_szTableCatalog[129]; WCHAR m_szTableSchema[129]; WCHAR m_szTableName[129]; WCHAR m_szColumnName[129]; GUID m_guidColumn; ULONG m_ulColumnPropID; ULONG m_ulOrdinalPosition; VARIANT_BOOL m_bColumnHasDefault; WCHAR m_szColumnDefault[129]; ULONG m_ulColumnFlags; VARIANT_BOOL m_bIsNullable; USHORT m_nDataType; GUID m_guidType; ULONG m_ulCharMaxLength; ULONG m_ulCharOctetLength; USHORT m_nNumericPrecision; short m_nNumericScale; ULONG m_ulDateTimePrecision; WCHAR m_szCharSetCatalog[129]; WCHAR m_szCharSetSchema[129]; WCHAR m_szCharSetName[129]; WCHAR m_szCollationCatalog[129]; WCHAR m_szCollationSchema[129]; WCHAR m_szCollationName[129]; WCHAR m_szDomainCatalog[129]; WCHAR m_szDomainSchema[129]; WCHAR m_szDomainName[129]; WCHAR m_szDescription[129]; CCOLUMNSRow() { ClearMembers(); } void ClearMembers() { m_szTableCatalog[0] = NULL; m_szTableSchema[0] = NULL; m_szTableName[0] = NULL; m_szColumnName[0] = NULL; m_guidColumn = GUID_NULL; m_ulColumnPropID = 0; m_ulOrdinalPosition = 0; m_bColumnHasDefault = ATL_VARIANT_FALSE; m_szColumnDefault[0] = NULL; m_ulColumnFlags = 0; m_bIsNullable = ATL_VARIANT_FALSE; m_nDataType = 0; m_guidType = GUID_NULL; m_ulCharMaxLength = 0; m_ulCharOctetLength = 0; m_nNumericPrecision = 0; m_nNumericScale = 0; m_ulDateTimePrecision = 0; m_szCharSetCatalog[0] = NULL; m_szCharSetSchema[0] = NULL; m_szCharSetName[0] = NULL; m_szCollationCatalog[0] = NULL; m_szCollationSchema[0] = NULL; m_szCollationName[0] = NULL; m_szDomainCatalog[0] = NULL; m_szDomainSchema[0] = NULL; m_szDomainName[0] = NULL; m_szDescription[0] = NULL; } BEGIN_PROVIDER_COLUMN_MAP(CCOLUMNSRow) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_CATALOG", 1, m_szTableCatalog) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_SCHEMA", 2, m_szTableSchema) PROVIDER_COLUMN_ENTRY_WSTR("TABLE_NAME", 3, m_szTableName) PROVIDER_COLUMN_ENTRY_WSTR("COLUMN_NAME", 4, m_szColumnName) PROVIDER_COLUMN_ENTRY_PS("COLUMN_GUID", 5, 0xFF, 0xFF, m_guidColumn) PROVIDER_COLUMN_ENTRY_PS("COLUMN_PROPID",6, 10, 0xFF, m_ulColumnPropID) PROVIDER_COLUMN_ENTRY_PS("ORDINAL_POSITION",7, 10, 0xFF, m_ulOrdinalPosition) PROVIDER_COLUMN_ENTRY_TYPE_PS("COLUMN_HASDEFAULT",8, DBTYPE_BOOL, 0xFF, 0xFF, m_bColumnHasDefault) PROVIDER_COLUMN_ENTRY_PS("COLUMN_DEFAULT",9, 0xFF, 0xFF, m_szColumnDefault) PROVIDER_COLUMN_ENTRY_PS("COLUMN_FLAGS",10, 10, 0xFF, m_ulColumnFlags) PROVIDER_COLUMN_ENTRY_TYPE_PS("IS_NULLABLE",11, DBTYPE_BOOL, 0xFF, 0xFF, m_bIsNullable) PROVIDER_COLUMN_ENTRY_TYPE_PS("DATA_TYPE",12, DBTYPE_UI2, 5, 0xFF, m_nDataType) PROVIDER_COLUMN_ENTRY_PS("TYPE_GUID",13, 0xFF, 0xFF, m_guidType) PROVIDER_COLUMN_ENTRY_PS("CHARACTER_MAXIMUM_LENGTH",14, 10, 0xFF, m_ulCharMaxLength) PROVIDER_COLUMN_ENTRY_PS("CHARACTER_OCTET_LENGTH",15, 10, 0xFF, m_ulCharOctetLength) PROVIDER_COLUMN_ENTRY_PS("NUMERIC_PRECISION",16, 5, 0xFF, m_nNumericPrecision) PROVIDER_COLUMN_ENTRY_PS("NUMERIC_SCALE",17, 5, 0xFF, m_nNumericScale) PROVIDER_COLUMN_ENTRY_PS("DATETIME_PRECISION",18, 10, 0xFF, m_ulDateTimePrecision) PROVIDER_COLUMN_ENTRY_WSTR("CHARACTER_SET_CATALOG", 19, m_szCharSetCatalog) PROVIDER_COLUMN_ENTRY_WSTR("CHARACTER_SET_SCHEMA", 20, m_szCharSetSchema) PROVIDER_COLUMN_ENTRY_WSTR("CHARACTER_SET_NAME", 21, m_szCharSetName) PROVIDER_COLUMN_ENTRY_WSTR("COLLATION_CATALOG", 22, m_szCollationCatalog) PROVIDER_COLUMN_ENTRY_WSTR("COLLATION_SCHEMA", 23, m_szCollationSchema) PROVIDER_COLUMN_ENTRY_WSTR("COLLATION_NAME", 24, m_szCollationName) PROVIDER_COLUMN_ENTRY_WSTR("DOMAIN_CATALOG", 25, m_szDomainCatalog) PROVIDER_COLUMN_ENTRY_WSTR("DOMAIN_SCHEMA", 26, m_szDomainSchema) PROVIDER_COLUMN_ENTRY_WSTR("DOMAIN_NAME", 27, m_szDomainName) PROVIDER_COLUMN_ENTRY_WSTR("DESCRIPTION", 28, m_szDescription) END_PROVIDER_COLUMN_MAP() }; template HRESULT InitFromRowset( _Inout_ ArrayClass& rgData, _In_ DBID* pTableID, _In_ DBID* pIndexID, _Inout_ IUnknown* pSession, _Out_ LONG* pcRowsAffected) { CComQIPtr spOpenRowset = pSession; if (spOpenRowset == NULL) return E_FAIL; CComPtr spColInfo; HRESULT hr = spOpenRowset->OpenRowset(NULL, pTableID, pIndexID, __uuidof(IColumnsInfo), 0, NULL, (IUnknown**)&spColInfo); if (FAILED(hr)) return hr; LPOLESTR szColumns = NULL; DBORDINAL cColumns = 0; DBCOLUMNINFO* pColInfo = NULL; hr = spColInfo->GetColumnInfo(&cColumns, &pColInfo, &szColumns); if (FAILED(hr)) return hr; *pcRowsAffected = 0; for (ULONG iCol = 0; iCol < cColumns; iCol++) { CCOLUMNSRow crData; DBCOLUMNINFO& rColCur = pColInfo[iCol]; Checked::wcsncpy_s(crData.m_szTableName, _countof(crData.m_szTableName), pTableID->uName.pwszName, _TRUNCATE); Checked::wcsncpy_s(crData.m_szColumnName, _countof(crData.m_szColumnName), rColCur.pwszName, _TRUNCATE); Checked::wcsncpy_s(crData.m_szDescription, _countof(crData.m_szDescription), rColCur.pwszName, _TRUNCATE); GUID* pGuidCol = CDBIDOps::GetDBIDpGuid(rColCur.columnid); if (pGuidCol) crData.m_guidColumn = *pGuidCol; else crData.m_guidColumn = GUID_NULL; crData.m_ulColumnPropID = CDBIDOps::GetPropIDFromDBID(rColCur.columnid); crData.m_ulOrdinalPosition = rColCur.iOrdinal; crData.m_ulColumnFlags = rColCur.dwFlags; crData.m_bIsNullable = (rColCur.dwFlags & DBCOLUMNFLAGS_ISNULLABLE) ? ATL_VARIANT_TRUE : ATL_VARIANT_FALSE; crData.m_nDataType = rColCur.wType; crData.m_ulCharMaxLength = rColCur.ulColumnSize; crData.m_nNumericPrecision = rColCur.bPrecision; crData.m_nNumericScale = rColCur.bScale; //if (!rgData.Add(crData)) //{ // CoTaskMemFree(pColInfo); // CoTaskMemFree(szColumns); // return E_OUTOFMEMORY; //} _ATLTRY { rgData.Add(crData); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); CoTaskMemFree(pColInfo); CoTaskMemFree(szColumns); return E_OUTOFMEMORY; } (*pcRowsAffected)++; } CoTaskMemFree(pColInfo); CoTaskMemFree(szColumns); return S_OK; } class CPROVIDER_TYPERow { public: // Attributes WCHAR m_szName[129]; USHORT m_nType; ULONG m_ulSize; WCHAR m_szPrefix[129]; WCHAR m_szSuffix[129]; WCHAR m_szCreateParams[129]; VARIANT_BOOL m_bIsNullable; VARIANT_BOOL m_bCaseSensitive; ULONG m_ulSearchable; VARIANT_BOOL m_bUnsignedAttribute; VARIANT_BOOL m_bFixedPrecScale; VARIANT_BOOL m_bAutoUniqueValue; WCHAR m_szLocalTypeName[129]; short m_nMinScale; short m_nMaxScale; GUID m_guidType; WCHAR m_szTypeLib[129]; WCHAR m_szVersion[129]; VARIANT_BOOL m_bIsLong; VARIANT_BOOL m_bBestMatch; VARIANT_BOOL m_bIsFixedLength; CPROVIDER_TYPERow() { m_szName[0] = NULL; m_nType = 0; m_ulSize = 0; m_szPrefix[0] = NULL; m_szSuffix[0] = NULL; m_szCreateParams[0] = NULL; m_bIsNullable = ATL_VARIANT_FALSE; m_bCaseSensitive = ATL_VARIANT_FALSE; m_ulSearchable = DB_UNSEARCHABLE; m_bUnsignedAttribute = ATL_VARIANT_FALSE; m_bFixedPrecScale = ATL_VARIANT_FALSE; m_bAutoUniqueValue = ATL_VARIANT_FALSE; m_szLocalTypeName[0] = NULL; m_nMinScale = 0; m_nMaxScale = 0; m_guidType = GUID_NULL; m_szTypeLib[0] = NULL; m_szVersion[0] = NULL; m_bIsLong = ATL_VARIANT_FALSE; m_bBestMatch = ATL_VARIANT_FALSE; m_bIsFixedLength = ATL_VARIANT_FALSE; } // Binding Maps BEGIN_PROVIDER_COLUMN_MAP(CPROVIDER_TYPERow) PROVIDER_COLUMN_ENTRY_WSTR("TYPE_NAME", 1, m_szName) PROVIDER_COLUMN_ENTRY_TYPE_PS("DATA_TYPE", 2, DBTYPE_UI2, 5, 0xFF, m_nType) PROVIDER_COLUMN_ENTRY_PS("COLUMN_SIZE", 3, 10, 0xFF, m_ulSize) PROVIDER_COLUMN_ENTRY_WSTR("LITERAL_PREFIX", 4, m_szPrefix) PROVIDER_COLUMN_ENTRY_WSTR("LITERAL_SUFFIX", 5, m_szSuffix) PROVIDER_COLUMN_ENTRY_WSTR("CREATE_PARAMS", 6, m_szCreateParams) PROVIDER_COLUMN_ENTRY_TYPE_PS("IS_NULLABLE", 7, DBTYPE_BOOL, 0xFF, 0xFF, m_bIsNullable) PROVIDER_COLUMN_ENTRY_TYPE_PS("CASE_SENSITIVE", 8, DBTYPE_BOOL, 0xFF, 0xFF, m_bCaseSensitive) PROVIDER_COLUMN_ENTRY_PS("SEARCHABLE", 9, 10, 0xFF, m_ulSearchable) PROVIDER_COLUMN_ENTRY_TYPE_PS("UNSIGNED_ATTRIBUTE", 10, DBTYPE_BOOL, 0xFF, 0xFF, m_bUnsignedAttribute) PROVIDER_COLUMN_ENTRY_TYPE_PS("FIXED_PREC_SCALE", 11, DBTYPE_BOOL, 0xFF, 0xFF, m_bFixedPrecScale) PROVIDER_COLUMN_ENTRY_TYPE_PS("AUTO_UNIQUE_VALUE", 12, DBTYPE_BOOL, 0xFF, 0xFF, m_bAutoUniqueValue) PROVIDER_COLUMN_ENTRY_WSTR("LOCAL_TYPE_NAME", 13, m_szLocalTypeName) PROVIDER_COLUMN_ENTRY_PS("MINIMUM_SCALE", 14, 5, 0xFF, m_nMinScale) PROVIDER_COLUMN_ENTRY_PS("MAXIMUM_SCALE", 15, 5, 0xFF, m_nMaxScale) PROVIDER_COLUMN_ENTRY_PS("GUID", 16, 0xFF, 0xFF, m_guidType) PROVIDER_COLUMN_ENTRY_WSTR("TYPELIB", 17, m_szTypeLib) PROVIDER_COLUMN_ENTRY_WSTR("VERSION", 18, m_szVersion) PROVIDER_COLUMN_ENTRY_TYPE_PS("IS_LONG", 19, DBTYPE_BOOL, 0xFF, 0xFF, m_bIsLong) PROVIDER_COLUMN_ENTRY_TYPE_PS("BEST_MATCH", 20, DBTYPE_BOOL, 0xFF, 0xFF, m_bBestMatch) PROVIDER_COLUMN_ENTRY_TYPE_PS("IS_FIXEDLENGTH", 21, DBTYPE_BOOL, 0xFF, 0xFF, m_bIsFixedLength) END_PROVIDER_COLUMN_MAP() }; class CEnumRowsetImpl { public: WCHAR m_szSourcesName[256]; WCHAR m_szSourcesParseName[256]; WCHAR m_szSourcesDescription[256]; unsigned short m_iType; VARIANT_BOOL m_bIsParent; BEGIN_PROVIDER_COLUMN_MAP(CEnumRowsetImpl) PROVIDER_COLUMN_ENTRY("SOURCES_NAME", 1, m_szSourcesName) PROVIDER_COLUMN_ENTRY("SOURCES_PARSENAME", 2, m_szSourcesParseName) PROVIDER_COLUMN_ENTRY("SOURCES_DESCRIPTION", 3, m_szSourcesDescription) PROVIDER_COLUMN_ENTRY("SOURCES_TYPE", 4, m_iType) PROVIDER_COLUMN_ENTRY("SOURCES_ISPARENT", 5, m_bIsParent) END_PROVIDER_COLUMN_MAP() }; /////////////////////////////////////////////////////////////////////////// // class IRowsetUpdateImpl template , class RowClass = CSimpleRow, class MapClass = CAtlMap < RowClass::KeyType, RowClass* > > class IRowsetUpdateImpl : public IRowsetChangeImpl { public: // Destructor virtual ~IRowsetUpdateImpl() { m_mapCachedData.RemoveAll(); } // IRowsetChange Methods STDMETHOD (SetData)( _In_ HROW hRow, _In_ HACCESSOR hAccessor, _In_opt_ void* pSrcData) { T* pT = (T*)this; __if_exists(T::Fire_OnFieldChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } // We provide this implementation for use as it adds more // complexity to the SetData function to handle both // immediate and deferred processing. It also allows us to // cache the original data w/o increasing the size of // IRowsetChangeImpl RowClass* pRow; HRESULT hr; // Determine if we are in immediate or deferred mode, if we are in // immediate mode call FlushData. Otherwise, add the orginal data // to the cache CComVariant varDeferred; bool bDeferred; hr = pT->GetPropValue(&DBPROPSET_ROWSET, DBPROP_IRowsetUpdate, &varDeferred); (FAILED(hr) || varDeferred.boolVal == ATL_VARIANT_FALSE) ? bDeferred = false : bDeferred = true; if( ! pT->m_rgRowHandles.Lookup(hRow, pRow) ) return DB_E_BADROWHANDLE; if (hRow == NULL || pRow == NULL) return DB_E_BADROWHANDLE; // If we've deleted the row (or are pending) then SetData should fail if (pRow->m_status == DBPENDINGSTATUS_DELETED) return DB_E_DELETEDROW; if (bDeferred) { __if_exists(T::Fire_OnRowChange) { if (pRow->m_status != DBPENDINGSTATUS_CHANGED && pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { HRESULT hrNotify = pT->Fire_OnRowChange(pT, 1, &hRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) return DB_E_CANCELED; hrNotify = pT->Fire_OnRowChange(pT, 1, &hRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) return DB_E_CANCELED; } } // If a row is soft inserted (i.e. haven't called update yet) // then ignore this section. An undo will cause the row to // delete. if (pRow->m_status != DBPENDINGSTATUS_NEW) { // See if row is already cached, don't make any changes //void* pData = (void*)m_mapCachedData.Lookup(hRow, pTemp); Storage* pData; if (! m_mapCachedData.Lookup(hRow, pData) ) { Storage* pam = NULL; ATLTRY(pam = new Storage); if (pam == NULL) return E_OUTOFMEMORY; Checked::memcpy_s(pam, sizeof(Storage), &pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage)); _ATLTRY { m_mapCachedData.SetAt(hRow, pam); } _ATLCATCH( e ) { _ATLDELETEEXCEPTION( e ); return E_FAIL; } } } } // NOTE: TransferData will send the SYNCHAFTER phase of the FIRSTCHANGE // notification message. It will handle a veto internally. hr = TransferData (pT, false, pSrcData, pRow, &(pT->m_rgRowHandles), hAccessor); if (FAILED(hr)) return hr; // Flush Users Data, if in immediate mode if (!bDeferred) { HRESULT hrFlush = pT->FlushData(hRow, hAccessor); if (hrFlush == S_OK) return hr; // TransferData may have returned DB_S_ERRORSOCCURRED else return hrFlush; } else { __if_exists(T::Fire_OnRowChange) { if (pRow->m_status != DBPENDINGSTATUS_CHANGED && pRow->m_status != (DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_UNCHANGED)) { pT->Fire_OnRowChange(pT, 1, &hRow, DBREASON_ROW_FIRSTCHANGE, DBEVENTPHASE_DIDEVENT, TRUE); } } if (pRow->m_status != DBPENDINGSTATUS_NEW) pRow->m_status = DBPENDINGSTATUS_CHANGED; return hr; // TransferData may have returned DB_S_ERRORSOCCURRED } } // IRowsetUpdate Methods STDMETHOD (GetOriginalData)( _In_ HROW hRow, _In_ HACCESSOR hAccessor, _Inout_opt_ void* pData) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetUpdateImpl::GetOriginalData\n")); T* pT = (T*)this; __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) return DB_E_NOTREENTRANT; else pT->DecrementMutex(); } // Validate input parameters T::_BindType* pBinding; bool bFound = pT->m_rgBindings.Lookup((INT_PTR)hAccessor, pBinding); if (!bFound || pBinding == NULL) return DB_E_BADACCESSORHANDLE; if (pData == NULL && pBinding->cBindings != 0) return E_INVALIDARG; RowClass* pRow; if (! pT->m_rgRowHandles.Lookup(hRow, pRow)) return DB_E_BADROWHANDLE; if (hRow == NULL || pRow == NULL) return DB_E_BADROWHANDLE; // If the status is DBPENDINGSTATUS_INVALIDROW, the row has been // deleted and the change transmitted to the data source. In // this case, we can't get the original data so return // DB_E_DELETEDROW. if (pRow->m_status == DBPENDINGSTATUS_INVALIDROW) return DB_E_DELETEDROW; // Note, need to determine if accessor is not a row accessor // Determine if we have a pending insert. In this case, the // spec says revert to default values, and if defaults, // are not available, then NULLs. if (pRow->m_status == DBPENDINGSTATUS_NEW) { ATLCOLUMNINFO* pInfo; bool bSucceeded = true; bool bFailed = false; DBORDINAL ulColumns; Storage temp; Checked::memcpy_s(&temp, sizeof(Storage), &pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage)); pInfo = T::GetColumnInfo(pT, &ulColumns); for (ULONG lBind=0; lBindcBindings; lBind++) { DBBINDING* pBindCur = &(pBinding->pBindings[lBind]); ULONG lColInfo; for (lColInfo=0; lColInfoiOrdinal != pInfo[lColInfo].iOrdinal; lColInfo++); if (lColInfo == ulColumns) return DB_E_BADORDINAL; ATLCOLUMNINFO* pColCur = &(pInfo[lColInfo]); DBSTATUS dbStat = DBSTATUS_S_DEFAULT; // Try to get the default value. if that doesn't work, then // attempt to do a NULL value if (FAILED(pT->SetDBStatus(&dbStat, pRow, pColCur))) { if ((pColCur->dwFlags & DBCOLUMNFLAGS_ISNULLABLE) || (pColCur->dwFlags & DBCOLUMNFLAGS_MAYBENULL)) { BYTE* pDstTemp = (BYTE*)(&(pT->m_rgRowData[pRow->m_iRowset]) + pColCur->cbOffset); *pDstTemp = NULL; if (pBindCur->dwPart & DBPART_STATUS) *((DBSTATUS*)((BYTE*)(pData) + pBindCur->obStatus)) = DBSTATUS_S_ISNULL; bSucceeded |= true; continue; } else { if (pBindCur->dwPart & DBPART_STATUS) *((DBSTATUS*)((BYTE*)(pData) + pBindCur->obStatus)) = DBSTATUS_E_UNAVAILABLE; bFailed = true; continue; } } else { if (pBindCur->dwPart & DBPART_STATUS) *((DBSTATUS*)((BYTE*)(pData) + pBindCur->obStatus)) = DBSTATUS_S_OK; bSucceeded |= true; continue; } } TransferData (pT, true, pData, pRow, &(pT->m_rgRowHandles), hAccessor); Checked::memcpy_s(&pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage), &temp, sizeof(Storage)); if (!bFailed) return S_OK; else return (bSucceeded ? DB_S_ERRORSOCCURRED : DB_E_ERRORSOCCURRED); } // Determine if the row is cached, if so, we'll temporarily replace // it in m_rgRowData and call TransferData to handle the accessor. // It is kind of strange but it saves us from having to reimplement // TransferData Storage* pam; bFound = m_mapCachedData.Lookup(hRow, pam); Storage temp; if (bFound && pam != NULL) { Checked::memcpy_s(&temp, sizeof(Storage), &pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage)); Checked::memcpy_s(&pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage), pam, sizeof(Storage)); } // We need to trick TransferData to thinking a non-transmitted // deleted row is still alive. This will be its final state after // we return anyway. if (pRow->m_status == DBPENDINGSTATUS_DELETED) pRow->m_status = DBPENDINGSTATUS_UNCHANGED; HRESULT hr = TransferData (pT, true, pData, pRow, &(pT->m_rgRowHandles), hAccessor); if (bFound && pam != NULL) { Checked::memcpy_s(&pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage), &temp, sizeof(Storage)); } pRow->m_status = DBPENDINGSTATUS_UNCHANGED; return hr; } STDMETHOD (GetPendingRows)( _In_ HCHAPTER /*hReserved*/, _In_ DBPENDINGSTATUS dwRowStatus, _Out_opt_ DBCOUNTITEM* pcPendingRows, _Deref_opt_out_opt_ HROW** prgPendingRows, _Deref_opt_out_opt_ DBPENDINGSTATUS** prgPendingStatus) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetUpdateImpl::GetPendingRows\n")); T* pT = (T*)this; bool bPending = false; RowClass* pRow = NULL; //DBROWCOUNT ulRowHandles = (DBROWCOUNT)pT->m_rgRowHandles.GetCount(); if (pcPendingRows != NULL) { *pcPendingRows = 0; if (prgPendingRows != NULL) *prgPendingRows = NULL; if (prgPendingStatus != NULL) *prgPendingStatus = NULL; } // Validate input parameters if ((dwRowStatus & ~(DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_CHANGED | DBPENDINGSTATUS_DELETED)) != 0) return E_INVALIDARG; // Validate input parameters if ((dwRowStatus & ~(DBPENDINGSTATUS_NEW | DBPENDINGSTATUS_CHANGED | DBPENDINGSTATUS_DELETED)) != 0) return E_INVALIDARG; // Determine how many rows we'll need to return POSITION pos = pT->m_rgRowHandles.GetStartPosition(); while( pos != NULL ) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext( pos ); ATLASSERT( pPair != NULL ); if(!pPair) { return E_FAIL; } // Check to see if a row has a pending status pRow = pPair->m_value; if (pRow->m_status & dwRowStatus) { if (pcPendingRows != NULL) (*pcPendingRows)++; bPending = true; } } // In this case, there are no pending rows that match, just exit out if (!bPending) { // There are no pending rows so exit immediately return S_FALSE; } else { // Here' the consumer just wants to see if there are pending rows // we know that so we can exit if (pcPendingRows == NULL) return S_OK; } // Allocate arrays for pending rows if (prgPendingRows != NULL) { *prgPendingRows = (HROW*)::ATL::AtlCoTaskMemCAlloc(*pcPendingRows, static_cast(sizeof(HROW))); if (*prgPendingRows == NULL) { *pcPendingRows = 0; return E_OUTOFMEMORY; } } if (prgPendingStatus != NULL) { *prgPendingStatus = (DBPENDINGSTATUS*)::ATL::AtlCoTaskMemCAlloc(*pcPendingRows, static_cast(sizeof(DBPENDINGSTATUS))); if (*prgPendingStatus == NULL) { *pcPendingRows = 0; CoTaskMemFree(*prgPendingRows); *prgPendingRows = NULL; return E_OUTOFMEMORY; } memset(*prgPendingStatus, 0, *pcPendingRows * sizeof(DBPENDINGSTATUS)); } if (prgPendingRows || prgPendingStatus) { ULONG ulRows = 0; pos = pT->m_rgRowHandles.GetStartPosition(); while( pos != NULL ) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext( pos ); ATLASSERT( pPair != NULL ); pRow = pPair->m_value; if (pRow->m_status & dwRowStatus) { // Add the output row pRow->AddRefRow(); if (prgPendingRows) ((*prgPendingRows)[ulRows]) = /*(HROW)*/pPair->m_key; if (prgPendingStatus) ((*prgPendingStatus)[ulRows]) = (DBPENDINGSTATUS)pRow->m_status; ulRows++; } } /* for (iRowset = 0; iRowset < ulRowHandles; iRowset++) { pRow = pT->m_rgRowHandles.GetValueAt(iRowset); if (pRow->m_status & dwRowStatus) { // Add the output row pRow->AddRefRow(); if (prgPendingRows) ((*prgPendingRows)[ulRows]) = (HROW)pT->m_rgRowHandles.GetKeyAt(iRowset); if (prgPendingStatus) ((*prgPendingStatus)[ulRows]) = (DBPENDINGSTATUS)pRow->m_status; ulRows++; } } */ if (pcPendingRows != NULL) *pcPendingRows = ulRows; } // Return code depending on return S_OK; } STDMETHOD (GetRowStatus)( _In_ HCHAPTER /*hReserved*/, _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _Out_cap_(cRows) DBPENDINGSTATUS rgPendingStatus[]) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetUpdateImpl::GetRowStatus\n")); T* pT = (T*)this; bool bSucceeded = true; ULONG ulFetched = 0; if (cRows != 0) { // check for correct pointers if (rghRows == NULL || rgPendingStatus == NULL) return E_INVALIDARG; for (ULONG ulRows=0; ulRows < cRows; ulRows++) { RowClass* pRow; bool bFound = pT->m_rgRowHandles.Lookup(rghRows[ulRows], pRow); if ((! bFound || pRow == NULL) || (pRow->m_status == DBPENDINGSTATUS_INVALIDROW)) { rgPendingStatus[ulRows] = DBPENDINGSTATUS_INVALIDROW; bSucceeded = false; continue; } if (pRow->m_status != 0) rgPendingStatus[ulRows] = pRow->m_status; else rgPendingStatus[ulRows] = DBPENDINGSTATUS_UNCHANGED; ulFetched++; } } if (bSucceeded) { return S_OK; } else { if (ulFetched > 0) return DB_S_ERRORSOCCURRED; else return DB_E_ERRORSOCCURRED; } } STDMETHOD (Undo)( _In_ HCHAPTER /*hReserved*/, _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _Out_ DBCOUNTITEM *pcRowsUndone, _Out_opt_ _Deref_post_opt_cap_(*pcRowsUndone) HROW **prgRowsUndone, _Out_opt_ _Deref_post_opt_cap_(*pcRowsUndone) DBROWSTATUS **prgRowStatus) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetUpdateImpl::Undo\n")); T* pT = (T*)this; T::ObjectLock lock(pT); __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) { // Note, we can't set this up above as we may inadvertantly // step on the pcRowsUndone variable. if (pcRowsUndone != NULL) *pcRowsUndone = NULL; return DB_E_NOTREENTRANT; } else pT->DecrementMutex(); } DBCOUNTITEM ulRows = 0; bool bSucceeded = false; bool bFailed = false; bool bIgnore = false; ULONG ulUndone = 0; // the following lines are used to fix the two _alloca calls below. Those calls are risky // because we may be allocating huge amounts of data. So instead I'll allocate that data on heap. // But if you use _alloca you don't have to worry about cleaning this memory. So we will use these // temporary variables to allocate memory on heap. As soon as we exit the function, the memory will // be cleaned up, just as if we were using alloca. So now, instead of calling alloca, I'll alloc // memory on heap using the two smnart pointers below, and then assing it to the actual pointers. CHeapPtr spTempRowsUndone; CHeapPtr spTempRowStatus; __if_exists(T::Fire_OnRowChange) { HRESULT hrNotify = S_OK; int nReason = 0; } // Ignore prgRowsUndone/prgRowStatus if pcRowsUndone is NULL and // cRows == 0. if (pcRowsUndone != NULL || cRows != 0) { if (prgRowsUndone != NULL) *prgRowsUndone = NULL; if (prgRowStatus != NULL) *prgRowStatus = NULL; } else { bIgnore = true; // Don't do status or row arrays } // Check to see how many changes we'll undo if (pcRowsUndone != NULL) { *pcRowsUndone = NULL; if (prgRowsUndone == NULL) return E_INVALIDARG; } if (cRows != 0) { if (rghRows == NULL) return E_INVALIDARG; ulRows = cRows; } else ulRows = (DBCOUNTITEM)pT->m_rgRowHandles.GetCount(); // NULL out pointers if (prgRowsUndone != NULL && ulRows != 0 && bIgnore == false) { // Make a temporary buffer as we may not fill up everything // in the case where cRows == 0 if (cRows != 0) *prgRowsUndone = (HROW*)::ATL::AtlCoTaskMemCAlloc(ulRows, static_cast(sizeof(HROW))); else { spTempRowsUndone.Allocate(ulRows); *prgRowsUndone = spTempRowsUndone; } if (*prgRowsUndone == NULL) return E_OUTOFMEMORY; } else { if (prgRowsUndone != NULL && bIgnore == false) *prgRowsUndone = NULL; } if (prgRowStatus != NULL && ulRows != 0 && bIgnore == false) { if (cRows != 0) *prgRowStatus = (DBROWSTATUS*)::ATL::AtlCoTaskMemCAlloc(ulRows, static_cast(sizeof(DBROWSTATUS))); else { spTempRowStatus.Allocate(ulRows); *prgRowStatus = spTempRowStatus; } if (*prgRowStatus == NULL) { if (cRows != 0) CoTaskMemFree(*prgRowsUndone); *prgRowsUndone = NULL; return E_OUTOFMEMORY; } } else { if (prgRowStatus != NULL && bIgnore == false) *prgRowStatus = NULL; } POSITION pos = pT->m_rgRowHandles.GetStartPosition(); RowClass* pRow = NULL; for (ULONG ulUndoRow = 0; ulUndoRow < ulRows; ulUndoRow++) { HROW hRowUndo = NULL; ULONG ulCurrentRow = ulUndone; if (rghRows != NULL && cRows != 0) { hRowUndo = rghRows[ulUndoRow]; } else { ATLASSERT(ulUndoRow < (ULONG)pT->m_rgRowHandles.GetCount()); ATLASSERT( pos != NULL ); MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext(pos); ATLASSERT( pPair != NULL ); if(!pPair) { return E_FAIL; } hRowUndo = pPair->m_key; } if (prgRowsUndone != NULL && bIgnore == false) (*prgRowsUndone)[ulCurrentRow] = hRowUndo; // Fetch the RowClass and determine if it is valid bool bFound = pT->m_rgRowHandles.Lookup(hRowUndo, pRow); if (!bFound || pRow == NULL) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_INVALID; bFailed = true; ulUndone++; continue; } // If cRows is zero we'll go through all rows fetched. We shouldn't // increment the count for rows that haven't been modified. if (cRows != 0 || (pRow != NULL && pRow->m_status != 0 && pRow->m_status != DBPENDINGSTATUS_UNCHANGED && pRow->m_status != DBPENDINGSTATUS_INVALIDROW)) ulUndone++; else continue; // AddRef the row if cRows is zero (we will be returning it to the // consumer) if (cRows == 0) pRow->AddRefRow(); // Fetch the data, note, this may be NULL in several cases Storage* pData; if(! m_mapCachedData.Lookup(hRowUndo, pData) ) pData = NULL; switch (pRow->m_status) { case DBPENDINGSTATUS_INVALIDROW: // Row has already been hard deleted if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_DELETED; bFailed = true; continue; break; case DBPENDINGSTATUS_NEW: // Row has been soft inserted // If the row is newly inserted, go ahead and mark its // row as INVALID (according to the specification). __if_exists(T::Fire_OnRowChange) { hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOINSERT, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOINSERT, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOINSERT, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } } if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_S_OK; pT->m_rgRowData.RemoveAt(pRow->m_iRowset); // Move any other subsequent rows up in the chain { POSITION posRow = pT->m_rgRowHandles.GetStartPosition(); while(posRow != NULL) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext(posRow); ATLASSERT( pPair != NULL ); if(!pPair) { return E_FAIL; } RowClass* pCheckRow = pPair->m_value; if (pCheckRow != NULL && pCheckRow->m_iRowset > pRow->m_iRowset) pCheckRow->m_iRowset--; } } pRow->m_status = DBPENDINGSTATUS_INVALIDROW; bSucceeded = true; __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOINSERT, DBEVENTPHASE_DIDEVENT, TRUE); } continue; break; case 0: // Row has just been fetched case DBPENDINGSTATUS_DELETED: // Row has been soft deleted case DBPENDINGSTATUS_UNCHANGED: // Row is not changed __if_exists(T::Fire_OnRowChange) { if (pRow->m_status == DBPENDINGSTATUS_DELETED) { nReason = 1; hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDODELETE, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDODELETE, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDODELETE, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } } } pRow->m_status = DBPENDINGSTATUS_UNCHANGED; if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_S_OK; bSucceeded = true; // Somebody set, then deleted a row most likely if (pData != NULL) { Checked::memcpy_s(&pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage), pData, sizeof(Storage)); } __if_exists(T::Fire_OnRowChange) { if (nReason == 1) { pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDODELETE, DBEVENTPHASE_DIDEVENT, TRUE); nReason = 0; } } continue; break; default: // Row has been changed __if_exists(T::Fire_OnRowChange) { hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOCHANGE, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOCHANGE, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOCHANGE, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } } if (pData == NULL) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOCHANGE, DBEVENTPHASE_FAILEDTODO, FALSE); } if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_INVALID; bFailed = true; continue; } // Copy data back Checked::memcpy_s(&pT->m_rgRowData[pRow->m_iRowset], sizeof(Storage), pData, sizeof(Storage)); if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_S_OK; pRow->m_status = DBPENDINGSTATUS_UNCHANGED; bSucceeded = true; // Remove undo buffer m_mapCachedData.RemoveKey(hRowUndo); // Check if we need to release the row because it's ref was 0 // See the IRowset::ReleaseRows section in the spec for more // information if (pRow->m_dwRef == 0) { pRow->AddRefRow(); // Artifically bump this to remove it if( FAILED( pT->RefRows(1, &hRowUndo, NULL, NULL, false) ) ) return E_FAIL; } __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, &hRowUndo, DBREASON_ROW_UNDOCHANGE, DBEVENTPHASE_DIDEVENT, TRUE); } break; } } // Set the output for rows undone. if (pcRowsUndone) *pcRowsUndone = ulUndone; // In the case where cRows == 0, we need to allocate the final // array of data. if (cRows == 0) { HROW* prowTemp = NULL; DBROWSTATUS* prowStatus = NULL; if (prgRowsUndone != NULL && ulUndone != 0 && bIgnore == false) { prowTemp = (HROW*)::ATL::AtlCoTaskMemCAlloc(ulUndone, static_cast(sizeof(HROW))); if (prowTemp == NULL) { // Free prgRowsUndone if (cRows != 0 && prgRowsUndone != NULL) CoTaskMemFree(*prgRowsUndone); if (cRows != 0 && prgRowStatus != NULL) CoTaskMemFree(*prgRowStatus); return E_OUTOFMEMORY; } Checked::memcpy_s(prowTemp, (sizeof(HROW)*ulUndone), *prgRowsUndone, (sizeof(HROW)*ulUndone)); if (cRows != 0) CoTaskMemFree(*prgRowsUndone); // we're finished w/ the temp array *prgRowsUndone = prowTemp; } else { if (prgRowsUndone != NULL && bIgnore == false) *prgRowsUndone = NULL; } if (prgRowStatus != NULL && ulUndone != 0 && bIgnore == false) { prowStatus = (DBROWSTATUS*)::ATL::AtlCoTaskMemCAlloc(ulUndone, static_cast(sizeof(DBROWSTATUS))); if (prowStatus == NULL) { if (cRows != 0 && prgRowsUndone != NULL) CoTaskMemFree(*prgRowsUndone); if (prgRowStatus != NULL && cRows != 0) CoTaskMemFree(*prgRowStatus); return E_OUTOFMEMORY; } Checked::memcpy_s(prowStatus, (sizeof(DBROWSTATUS)*ulUndone), *prgRowStatus, (sizeof(DBROWSTATUS)*ulUndone)); if (cRows != 0) CoTaskMemFree(*prgRowStatus); *prgRowStatus = prowStatus; } else { if (prgRowStatus != NULL && bIgnore == false) *prgRowStatus = NULL; } } // Send the return value if (!bFailed) return S_OK; else { if (!bSucceeded) return DB_E_ERRORSOCCURRED; else return DB_S_ERRORSOCCURRED; } } STDMETHOD (Update)( _In_ HCHAPTER /*hReserved*/, _In_ DBCOUNTITEM cRows, _In_count_(cRows) const HROW rghRows[], _Out_ DBCOUNTITEM *pcRows, _Out_opt_ _Deref_post_opt_cap_(*pcRows) HROW **prgRows, _Out_opt_ _Deref_post_opt_cap_(*pcRows) DBROWSTATUS **prgRowStatus) { ATLTRACE(atlTraceDBProvider, 2, _T("IRowsetUpdateImpl::Update\n")); T* pT = (T*)this; T::ObjectLock lock(pT); __if_exists(T::Fire_OnRowChange) { // Check to see if someone is in an event handler. If we do, then // we should return DB_E_NOTREENTRANT. if (!pT->IncrementMutex()) { if (pcRows != NULL) *pcRows = NULL; return DB_E_NOTREENTRANT; } else pT->DecrementMutex(); } bool bSucceeded = false; bool bFailed = false; bool bIgnore = false; ULONG ulCount = 0; DBCOUNTITEM ulRowUpdate = 0; // the following lines are used to fix the two _alloca calls below. Those calls are risky // because we may be allocating huge amounts of data. So instead I'll allocate that data on heap. // But if you use _alloca you don't have to worry about cleaning this memory. So we will use these // temporary variables to allocate memory on heap. As soon as we exit the function, the memory will // be cleaned up, just as if we were using alloca. So now, instead of calling alloca, I'll alloc // memory on heap using the two smnart pointers below, and then assing it to the actual pointers. CHeapPtr spTempRows; CHeapPtr spTempRowStatus; if (pcRows != NULL || cRows != 0) { if (prgRows != NULL) *prgRows = NULL; if (prgRowStatus != NULL) *prgRowStatus = NULL; } else { bIgnore = true; } if (pcRows != NULL) { *pcRows = NULL; if (prgRows == NULL) return E_INVALIDARG; } if (cRows != 0) { if (rghRows == NULL) return E_INVALIDARG; ulRowUpdate = cRows; } else ulRowUpdate = (DBCOUNTITEM)pT->m_rgRowHandles.GetCount(); // NULL out pointers if (prgRows != NULL && ulRowUpdate != 0 && bIgnore == false) { if (cRows != 0) *prgRows = (HROW*)::ATL::AtlCoTaskMemCAlloc(ulRowUpdate, static_cast(sizeof(HROW))); else { spTempRows.Allocate(ulRowUpdate); *prgRows = spTempRows; } if (*prgRows == NULL) return E_OUTOFMEMORY; } else { if (prgRows != NULL && bIgnore == false) *prgRows = NULL; } if (prgRowStatus != NULL && ulRowUpdate != 0 && bIgnore == false) { if (cRows != 0) *prgRowStatus = (DBROWSTATUS*)::ATL::AtlCoTaskMemCAlloc(ulRowUpdate, static_cast(sizeof(DBROWSTATUS))); else { spTempRowStatus.Allocate(ulRowUpdate); *prgRowStatus = spTempRowStatus; } if (*prgRowStatus == NULL) { if(prgRows && *prgRows) { CoTaskMemFree(*prgRows); *prgRows = NULL; } return E_OUTOFMEMORY; } } else { if (prgRowStatus != NULL && bIgnore == false) *prgRowStatus = NULL; } // NOTE: If cRows is zero, then we should ignore rghRows and // update all of the rows in the cached map. RowClass* pRow = NULL; POSITION pos = pT->m_rgRowHandles.GetStartPosition(); for (ULONG ulRow = 0; ulRow < ulRowUpdate; ulRow++) { void* pData = NULL; HROW hRowUpdate = NULL; ULONG ulAlreadyProcessed = 0; bool bDupRow = false; LONG ulCurrentRow = ulCount; // Fetch the HROW, RowClass, and Data for the row. Perform // Validation as necessiary if (cRows != 0) { hRowUpdate = rghRows[ulRow]; for (ULONG ulCheckDup = 0; ulCheckDup < ulRow; ulCheckDup++) { if (pT->IsSameRow(hRowUpdate, rghRows[ulCheckDup]) == S_OK) { ulAlreadyProcessed = ulCheckDup; bDupRow = true; break; } } } else { ATLASSERT(ulRow < (ULONG)pT->m_rgRowHandles.GetCount()); ATLASSERT( pos != NULL ); MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext(pos); ATLASSERT( pPair != NULL ); if(!pPair) { return E_FAIL; } hRowUpdate = pPair->m_key; } if (prgRows != NULL && bIgnore == false) (*prgRows)[ulCurrentRow] = hRowUpdate; if (bDupRow != false) { // We've already set the row before, just copy status and // continue processing if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = (*prgRowStatus)[ulAlreadyProcessed]; ulCount++; continue; } bool bFound = pT->m_rgRowHandles.Lookup(hRowUpdate, pRow); if (!bFound || pRow == NULL) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_INVALID; bFailed = true; ulCount++; continue; } // If the row is not UNCHANGED, send preliminary notifications before beginning processing if( pRow->m_status != 0 && pRow->m_status != DBPENDINGSTATUS_UNCHANGED ) { __if_exists(T::Fire_OnRowChange) { HRESULT hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_OKTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, &hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_ABOUTTODO, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } hrNotify = pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_SYNCHAFTER, FALSE); if ((hrNotify != S_OK) && (hrNotify != E_FAIL)) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_CANCELED; bFailed = true; continue; } } } // If cRows is zero we'll go through all rows fetched. We // shouldn't increment the attempted count for rows that are // not changed if (cRows != 0 || (pRow != NULL && pRow->m_status !=0 && pRow->m_status != DBPENDINGSTATUS_UNCHANGED && pRow->m_status != DBPENDINGSTATUS_INVALIDROW)) ulCount++; else continue; switch(pRow->m_status) { case DBPENDINGSTATUS_INVALIDROW: // Row is bad or deleted __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_FAILEDTODO, TRUE); } if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_DELETED; bFailed = true; continue; break; case DBPENDINGSTATUS_UNCHANGED: case 0: // If the row's status is not changed, then just put S_OK // and continue. The spec says we should not transmit the // request to the data source (as nothing would change). //__if_exists(T::Fire_OnRowChange) //{ // pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, // DBEVENTPHASE_DIDEVENT, TRUE); //} if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_S_OK; bSucceeded = true; continue; break; default: pData = &pT->m_rgRowData[pRow->m_iRowset]; if (pData == NULL) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_FAILEDTODO, TRUE); } if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_INVALID; bFailed = true; continue; } // If the rghRows variable is NULL, we now add the row to // prgRows. We do this because we have determined that the // row has changed. AddRef the row as it may not be held by // the consumer. if (cRows == 0) pRow->AddRefRow(); // Ask the provider if it is OK to change this row. DBROWSTATUS status = DBROWSTATUS_S_OK; if (FAILED(IsUpdateAllowed(pRow->m_status, hRowUpdate, &status))) { __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_FAILEDTODO, TRUE); } if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = status; bFailed = true; continue; } if (pRow->m_status == DBPENDINGSTATUS_DELETED) { pT->m_rgRowData.RemoveAt(pRow->m_iRowset); // Need to update any outstanding pRow->m_iRowset // variables POSITION posRow = pT->m_rgRowHandles.GetStartPosition(); while( posRow != NULL ) { MapClass::CPair* pPair = pT->m_rgRowHandles.GetNext(posRow); ATLASSERT( pPair != NULL ); RowClass* pCheckRow = pPair->m_value; if (pCheckRow != NULL && pCheckRow->m_iRowset > pRow->m_iRowset) pCheckRow->m_iRowset--; } // Per the specification, deleted rows transmitted // to the data source are set to // DBPENDINGSTATUS_INVALIDROW pRow->m_status = DBPENDINGSTATUS_INVALIDROW; } // Copy data back if (FAILED(pT->FlushData(hRowUpdate, NULL))) { if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_E_FAIL; __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_FAILEDTODO, TRUE); } bFailed = true; continue; } if (prgRowStatus != NULL && bIgnore == false) (*prgRowStatus)[ulCurrentRow] = DBROWSTATUS_S_OK; bSucceeded = true; if (pRow->m_status != DBPENDINGSTATUS_DELETED) { if (pRow->m_status != DBPENDINGSTATUS_INVALIDROW) pRow->m_status = DBPENDINGSTATUS_UNCHANGED; } // Remove undo buffer. if (m_mapCachedData.Lookup(hRowUpdate) != NULL) m_mapCachedData.RemoveKey(hRowUpdate); // Check if we need to release the row because it's ref was 0 // See the IRowset::ReleaseRows section in the spec for more // information if (pRow->m_dwRef == 0) { pRow->AddRefRow(); // Artifically bump this to remove it if( FAILED( pT->RefRows(1, &hRowUpdate, NULL, NULL, false) ) ) return E_FAIL; } __if_exists(T::Fire_OnRowChange) { pT->Fire_OnRowChange(pT, 1, (HROW*)&hRowUpdate, DBREASON_ROW_UPDATE, DBEVENTPHASE_DIDEVENT, TRUE); } break; } } // Set the output for rows undone. if (pcRows) { if( cRows==0 ) *pcRows = ulCount; else *pcRows = cRows; } // In the case where cRows == 0, we need to allocate the final // array of HROWs and status values. if (cRows == 0) { HROW* prowTemp; DBROWSTATUS* prowStatus; if (prgRows != NULL && ulCount != 0 && bIgnore == false) { prowTemp = (HROW*)::ATL::AtlCoTaskMemCAlloc(ulCount, static_cast(sizeof(HROW))); if (prowTemp == NULL) { if (cRows != 0 && prgRows != NULL) CoTaskMemFree(*prgRows); if (cRows != 0 && prgRowStatus != NULL) CoTaskMemFree(*prgRowStatus); return E_OUTOFMEMORY; } Checked::memcpy_s(prowTemp, sizeof(HROW) * ulCount, *prgRows, sizeof(HROW) * ulCount); if (cRows != 0) CoTaskMemFree(*prgRows); *prgRows = prowTemp; } else { if (prgRows != NULL && bIgnore == false) *prgRows = NULL; } if (prgRowStatus != NULL && ulCount != 0 && bIgnore == false) { prowStatus = (DBROWSTATUS*)::ATL::AtlCoTaskMemCAlloc(ulCount, static_cast(sizeof(DBROWSTATUS))); if (prowStatus == NULL) { if (cRows != 0 && prgRows != NULL) CoTaskMemFree(*prgRows); if (cRows != 0 && prgRowStatus != NULL) CoTaskMemFree(*prgRowStatus); return E_OUTOFMEMORY; } Checked::memcpy_s(prowStatus, sizeof(DBROWSTATUS)*ulCount, *prgRowStatus, sizeof(DBROWSTATUS)*ulCount); if (cRows != 0) CoTaskMemFree(*prgRowStatus); *prgRowStatus = prowStatus; } else { if (prgRowStatus != NULL && bIgnore == false) *prgRowStatus = NULL; } } // Send the return value if (!bFailed) return S_OK; else { if (!bSucceeded) return DB_E_ERRORSOCCURRED; else return DB_S_ERRORSOCCURRED; } } // Callback functions HRESULT IsUpdateAllowed( _In_ DBPENDINGSTATUS /*status*/, _In_ HROW /*hRowUpdate*/, _In_opt_ DBROWSTATUS* /*pRowStatus*/) { // If you need to perform any checks for security, integrity // violations, etc. as a result of an update, override this // method. // Make sure you put the appropriate status in the pRowStatus // as it will be returned to the user. return S_OK; } // Map containing original data for deferred operation CAtlMap m_mapCachedData; }; }; //namespace ATL #pragma pack(pop) #pragma warning(pop) #endif //__ATLDB_H__