Db3x_mmap,Db_autobackups: changed folder structure

git-svn-id: http://svn.miranda-ng.org/main/trunk@1107 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 933 insertions, 0 deletions

diff --git a/plugins/Db3x_mmap/src/dbsettings.cpp b/plugins/Db3x_mmap/src/dbsettings.cpp
new file mode 100644
index 0000000000..49ac018047
--- /dev/null
+++ b/plugins/Db3x_mmap/src/dbsettings.cpp
@@ -0,0 +1,933 @@
+/*

+

+Miranda NG: the free IM client for Microsoft* Windows*

+

+Copyright 2012 Miranda NG project,

+all portions of this codebase are copyrighted to the people

+listed in contributors.txt.

+

+This program is free software; you can redistribute it and/or

+modify it under the terms of the GNU General Public License

+as published by the Free Software Foundation; either version 2

+of the License, or (at your option) any later version.

+

+This program is distributed in the hope that it will be useful,

+but WITHOUT ANY WARRANTY; without even the implied warranty of

+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+GNU General Public License for more details.

+

+You should have received a copy of the GNU General Public License

+along with this program; if not, write to the Free Software

+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

+*/

+

+#include "commonheaders.h"

+

+DWORD GetModuleNameOfs(const char *szName);

+DBCachedContactValueList* AddToCachedContactList(HANDLE hContact, int index);

+

+int DBPreset_QuerySetting(const char *szModule, const char *szSetting, DBVARIANT *dbv, BOOL isStatic);

+

+DWORD CDdxMmap::GetSettingsGroupOfsByModuleNameOfs(DBContact *dbc,DWORD ofsModuleName)

+{

+	DWORD ofsThis = dbc->ofsFirstSettings;

+	while (ofsThis) {

+		DBContactSettings *dbcs = (DBContactSettings*)DBRead(ofsThis,sizeof(DBContactSettings),NULL);

+		if (dbcs->signature != DBCONTACTSETTINGS_SIGNATURE) DatabaseCorruption(NULL);

+		if (dbcs->ofsModuleName == ofsModuleName)

+			return ofsThis;

+

+		ofsThis = dbcs->ofsNext;

+	}

+	return 0;

+}

+

+DWORD __forceinline GetSettingValueLength(PBYTE pSetting)

+{

+	if (pSetting[0] & DBVTF_VARIABLELENGTH)

+		return 2+*(PWORD)(pSetting+1);

+	return pSetting[0];

+}

+

+char* CDdxMmap::InsertCachedSetting(const char* szName, size_t cbNameLen)

+{

+	char* newValue = (char*)HeapAlloc(m_hCacheHeap, 0, cbNameLen);

+	*newValue = 0;

+	strcpy(newValue+1, szName+1);

+	m_lSettings.insert(newValue);

+	return newValue;

+}

+

+char* CDdxMmap::GetCachedSetting(const char *szModuleName,const char *szSettingName, int moduleNameLen, int settingNameLen)

+{

+	char szFullName[512];

+	strcpy(szFullName+1,szModuleName);

+	szFullName[moduleNameLen+1] = '/';

+	strcpy(szFullName+moduleNameLen+2,szSettingName);

+

+	if (m_lastSetting && strcmp(szFullName+1, m_lastSetting) == 0)

+		return m_lastSetting;

+

+	int index = m_lSettings.getIndex(szFullName);

+	if (index != -1)

+		m_lastSetting = m_lSettings[index]+1;

+	else

+		m_lastSetting = InsertCachedSetting( szFullName, settingNameLen+moduleNameLen+3)+1;

+

+	return m_lastSetting;

+}

+

+void CDdxMmap::SetCachedVariant( DBVARIANT* s /* new */, DBVARIANT* d /* cached */ )

+{

+	char* szSave = ( d->type == DBVT_UTF8 || d->type == DBVT_ASCIIZ ) ? d->pszVal : NULL;

+

+	memcpy( d, s, sizeof( DBVARIANT ));

+	if (( s->type == DBVT_UTF8 || s->type == DBVT_ASCIIZ ) && s->pszVal != NULL ) {

+		if ( szSave != NULL )

+			d->pszVal = (char*)HeapReAlloc(m_hCacheHeap,0,szSave,strlen(s->pszVal)+1);

+		else

+			d->pszVal = (char*)HeapAlloc(m_hCacheHeap,0,strlen(s->pszVal)+1);

+		strcpy(d->pszVal,s->pszVal);

+	}

+	else if ( szSave != NULL )

+		HeapFree(m_hCacheHeap,0,szSave);

+

+#ifdef DBLOGGING

+	switch( d->type ) {

+		case DBVT_BYTE:	log1( "set cached byte: %d", d->bVal ); break;

+		case DBVT_WORD:	log1( "set cached word: %d", d->wVal ); break;

+		case DBVT_DWORD:	log1( "set cached dword: %d", d->dVal ); break;

+		case DBVT_UTF8:

+		case DBVT_ASCIIZ: log1( "set cached string: '%s'", d->pszVal ); break;

+		default:				log1( "set cached crap: %d", d->type ); break;

+	}

+#endif

+}

+

+void CDdxMmap::FreeCachedVariant( DBVARIANT* V )

+{

+	if (( V->type == DBVT_ASCIIZ || V->type == DBVT_UTF8 ) && V->pszVal != NULL )

+		HeapFree(m_hCacheHeap,0,V->pszVal);

+}

+

+DBVARIANT* CDdxMmap::GetCachedValuePtr( HANDLE hContact, char* szSetting, int bAllocate )

+{

+	if ( hContact == 0 ) {

+		DBCachedGlobalValue Vtemp, *V;

+		Vtemp.name = szSetting;

+		int index = m_lGlobalSettings.getIndex(&Vtemp);

+		if (index != -1) {

+			V = m_lGlobalSettings[index];

+			if ( bAllocate == -1 ) {

+				FreeCachedVariant( &V->value );

+				m_lGlobalSettings.remove(index);

+				HeapFree(m_hCacheHeap,0,V);

+				return NULL;

+			}

+		}

+		else {

+			if ( bAllocate != 1 )

+				return NULL;

+

+			V = (DBCachedGlobalValue*)HeapAlloc(m_hCacheHeap,HEAP_ZERO_MEMORY,sizeof(DBCachedGlobalValue));

+			V->name = szSetting;

+			m_lGlobalSettings.insert(V);

+		}

+

+		return &V->value;

+	}

+	else {

+		DBCachedContactValue *V, *V1;

+		DBCachedContactValueList VLtemp,*VL;

+

+		if (m_hLastCachedContact == hContact && m_lastVL)

+			VL = m_lastVL;

+		else {

+			VLtemp.hContact = hContact;

+

+			int index = m_lContacts.getIndex(&VLtemp);

+			if (index == -1) {

+				if ( bAllocate != 1 )

+					return NULL;

+

+				VL = AddToCachedContactList(hContact, index);

+			}

+			else VL = m_lContacts[index];

+

+			m_lastVL = VL;

+			m_hLastCachedContact = hContact;

+		}

+

+		for ( V = VL->first; V != NULL; V = V->next)

+			if (V->name == szSetting)

+				break;

+

+		if ( V == NULL ) {

+			if ( bAllocate != 1 )

+				return NULL;

+

+			V = (DBCachedContactValue *)HeapAlloc(m_hCacheHeap, HEAP_ZERO_MEMORY, sizeof(DBCachedContactValue));

+			if (VL->last)

+				VL->last->next = V;

+			else

+				VL->first = V;

+			VL->last = V;

+			V->name = szSetting;

+		}

+		else if ( bAllocate == -1 ) {

+		   m_lastVL = NULL;

+			FreeCachedVariant(&V->value);

+			if ( VL->first == V ) {

+				VL->first = V->next;

+				if (VL->last == V)

+					VL->last = V->next; // NULL

+			}

+			else

+				for ( V1 = VL->first; V1 != NULL; V1 = V1->next )

+					if ( V1->next == V ) {

+						V1->next = V->next;

+						if (VL->last == V)

+							VL->last = V1;

+						break;

+					}

+			HeapFree(m_hCacheHeap,0,V);

+			return NULL;

+		}

+

+		return &V->value;

+}	}

+

+#define NeedBytes(n)   if (bytesRemaining<(n)) pBlob = (PBYTE)DBRead(ofsBlobPtr,(n),&bytesRemaining)

+#define MoveAlong(n)   {int x = n; pBlob += (x); ofsBlobPtr += (x); bytesRemaining -= (x);}

+#define VLT(n) ((n == DBVT_UTF8)?DBVT_ASCIIZ:n)

+

+int CDdxMmap::GetContactSettingWorker(HANDLE hContact,DBCONTACTGETSETTING *dbcgs,int isStatic)

+{

+	DBContact *dbc;

+	DWORD ofsModuleName,ofsContact,ofsSettingsGroup,ofsBlobPtr;

+	int settingNameLen,moduleNameLen;

+	int bytesRemaining;

+	PBYTE pBlob;

+	char* szCachedSettingName;

+

+	if ((!dbcgs->szSetting) || (!dbcgs->szModule))

+		return 1;

+	// the db format can't tolerate more than 255 bytes of space (incl. null) for settings+module name

+	settingNameLen = (int)strlen(dbcgs->szSetting);

+	moduleNameLen = (int)strlen(dbcgs->szModule);

+	if ( settingNameLen > 0xFE )

+	{

+		#ifdef _DEBUG

+			OutputDebugStringA("GetContactSettingWorker() got a > 255 setting name length. \n");

+		#endif

+		return 1;

+	}

+	if ( moduleNameLen > 0xFE )

+	{

+		#ifdef _DEBUG

+			OutputDebugStringA("GetContactSettingWorker() got a > 255 module name length. \n");

+		#endif

+		return 1;

+	}

+

+	mir_cslock lck(m_csDbAccess);

+

+	log3("get [%08p] %s/%s",hContact,dbcgs->szModule,dbcgs->szSetting);

+

+	szCachedSettingName = GetCachedSetting(dbcgs->szModule,dbcgs->szSetting,moduleNameLen,settingNameLen);

+	{

+		DBVARIANT* pCachedValue = GetCachedValuePtr( hContact, szCachedSettingName, 0 );

+		if ( pCachedValue != NULL ) {

+			if ( pCachedValue->type == DBVT_ASCIIZ || pCachedValue->type == DBVT_UTF8 ) {

+				int   cbOrigLen = dbcgs->pValue->cchVal;

+				char* cbOrigPtr = dbcgs->pValue->pszVal;

+				memcpy( dbcgs->pValue, pCachedValue, sizeof( DBVARIANT ));

+				if ( isStatic ) {

+					int cbLen = 0;

+					if ( pCachedValue->pszVal != NULL )

+						cbLen = (int)strlen( pCachedValue->pszVal );

+

+					cbOrigLen--;

+					dbcgs->pValue->pszVal = cbOrigPtr;

+					if (cbLen<cbOrigLen) cbOrigLen = cbLen;

+					CopyMemory(dbcgs->pValue->pszVal,pCachedValue->pszVal,cbOrigLen);

+					dbcgs->pValue->pszVal[cbOrigLen] = 0;

+					dbcgs->pValue->cchVal = cbLen;

+				}

+				else {

+					dbcgs->pValue->pszVal = (char*)mir_alloc(strlen(pCachedValue->pszVal)+1);

+					strcpy(dbcgs->pValue->pszVal,pCachedValue->pszVal);

+				}

+			}

+			else

+				memcpy( dbcgs->pValue, pCachedValue, sizeof( DBVARIANT ));

+

+			switch( dbcgs->pValue->type ) {

+				case DBVT_BYTE:	log1( "get cached byte: %d", dbcgs->pValue->bVal ); break;

+				case DBVT_WORD:	log1( "get cached word: %d", dbcgs->pValue->wVal ); break;

+				case DBVT_DWORD:	log1( "get cached dword: %d", dbcgs->pValue->dVal ); break;

+				case DBVT_UTF8:

+				case DBVT_ASCIIZ: log1( "get cached string: '%s'", dbcgs->pValue->pszVal); break;

+				default:				log1( "get cached crap: %d", dbcgs->pValue->type ); break;

+			}

+

+			return ( pCachedValue->type == DBVT_DELETED ) ? 1 : 0;

+	}	}

+

+	ofsModuleName = GetModuleNameOfs(dbcgs->szModule);

+	if (hContact == NULL) ofsContact = m_dbHeader.ofsUser;

+	else ofsContact = (DWORD)hContact;

+	dbc = (DBContact*)DBRead(ofsContact,sizeof(DBContact),NULL);

+	if (dbc->signature != DBCONTACT_SIGNATURE)

+		return 1;

+

+	ofsSettingsGroup = GetSettingsGroupOfsByModuleNameOfs(dbc,ofsModuleName);

+	if (ofsSettingsGroup) {

+		ofsBlobPtr = ofsSettingsGroup+offsetof(DBContactSettings,blob);

+		pBlob = DBRead(ofsBlobPtr,sizeof(DBContactSettings),&bytesRemaining);

+		while (pBlob[0]) {

+			NeedBytes(1+settingNameLen);

+			if (pBlob[0] == settingNameLen && !memcmp(pBlob+1,dbcgs->szSetting,settingNameLen)) {

+				MoveAlong(1+settingNameLen);

+				NeedBytes(5);

+				if (isStatic && pBlob[0]&DBVTF_VARIABLELENGTH && VLT(dbcgs->pValue->type) != VLT(pBlob[0]))

+					return 1;

+

+				dbcgs->pValue->type = pBlob[0];

+				switch(pBlob[0]) {

+					case DBVT_DELETED: /* this setting is deleted */

+						dbcgs->pValue->type = DBVT_DELETED;

+						return 2;

+

+					case DBVT_BYTE: dbcgs->pValue->bVal = pBlob[1]; break;

+					case DBVT_WORD: DecodeCopyMemory(&(dbcgs->pValue->wVal), (PWORD)(pBlob+1), 2); break;

+					case DBVT_DWORD: DecodeCopyMemory(&(dbcgs->pValue->dVal), (PDWORD)(pBlob+1), 4); break;

+					case DBVT_UTF8:

+					case DBVT_ASCIIZ:

+						NeedBytes(3+*(PWORD)(pBlob+1));

+						if (isStatic) {

+							dbcgs->pValue->cchVal--;

+							if (*(PWORD)(pBlob+1)<dbcgs->pValue->cchVal) dbcgs->pValue->cchVal = *(PWORD)(pBlob+1);

+							DecodeCopyMemory(dbcgs->pValue->pszVal,pBlob+3,dbcgs->pValue->cchVal);

+							dbcgs->pValue->pszVal[dbcgs->pValue->cchVal] = 0;

+							dbcgs->pValue->cchVal = *(PWORD)(pBlob+1);

+						}

+						else {

+							dbcgs->pValue->pszVal = (char*)mir_alloc(1+*(PWORD)(pBlob+1));

+							DecodeCopyMemory(dbcgs->pValue->pszVal,pBlob+3,*(PWORD)(pBlob+1));

+							dbcgs->pValue->pszVal[*(PWORD)(pBlob+1)] = 0;

+						}

+						break;

+					case DBVT_BLOB:

+						NeedBytes(3+*(PWORD)(pBlob+1));

+						if (isStatic) {

+							if (*(PWORD)(pBlob+1)<dbcgs->pValue->cpbVal) dbcgs->pValue->cpbVal = *(PWORD)(pBlob+1);

+							DecodeCopyMemory(dbcgs->pValue->pbVal,pBlob+3,dbcgs->pValue->cpbVal);

+						}

+						else {

+							dbcgs->pValue->pbVal = (BYTE *)mir_alloc(*(PWORD)(pBlob+1));

+							DecodeCopyMemory(dbcgs->pValue->pbVal,pBlob+3,*(PWORD)(pBlob+1));

+						}

+						dbcgs->pValue->cpbVal = *(PWORD)(pBlob+1);

+						break;

+				}

+

+				/**** add to cache **********************/

+				if ( dbcgs->pValue->type != DBVT_BLOB ) {

+					DBVARIANT* pCachedValue = GetCachedValuePtr( hContact, szCachedSettingName, 1 );

+					if ( pCachedValue != NULL )

+						SetCachedVariant(dbcgs->pValue,pCachedValue);

+				}

+

+				logg();

+				return 0;

+			}

+			NeedBytes(1);

+			MoveAlong(pBlob[0]+1);

+			NeedBytes(3);

+			MoveAlong(1+GetSettingValueLength(pBlob));

+			NeedBytes(1);

+	}	}

+

+	#ifndef DB3X_EXPORTS

+		/**** nullbie: query info from preset **********************/

+		if (!hContact && DBPreset_QuerySetting(dbcgs->szModule, dbcgs->szSetting, dbcgs->pValue, isStatic)) {

+			/**** add to cache **********************/

+			if ( dbcgs->pValue->type != DBVT_BLOB ) {

+				DBVARIANT* pCachedValue = GetCachedValuePtr( hContact, szCachedSettingName, 1 );

+				if ( pCachedValue != NULL )

+					SetCachedVariant(dbcgs->pValue,pCachedValue);

+			}

+			return 0;

+		}

+	#endif

+

+	/**** add missing setting to cache **********************/

+	if ( dbcgs->pValue->type != DBVT_BLOB )

+	{

+		DBVARIANT* pCachedValue = GetCachedValuePtr( hContact, szCachedSettingName, 1 );

+		if ( pCachedValue != NULL )

+			pCachedValue->type = DBVT_DELETED;

+	}

+

+	logg();

+	return 1;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::GetContactSetting(HANDLE hContact, DBCONTACTGETSETTING *dgs)

+{

+	dgs->pValue->type = 0;

+	if ( GetContactSettingWorker(hContact, dgs, 0 ))

+		return 1;

+

+	if ( dgs->pValue->type == DBVT_UTF8 ) {

+		WCHAR* tmp = NULL;

+		char*  p = NEWSTR_ALLOCA(dgs->pValue->pszVal);

+		if ( mir_utf8decode( p, &tmp ) != NULL ) {

+			BOOL bUsed = FALSE;

+			int  result = WideCharToMultiByte( m_codePage, WC_NO_BEST_FIT_CHARS, tmp, -1, NULL, 0, NULL, &bUsed );

+

+			mir_free( dgs->pValue->pszVal );

+

+			if ( bUsed || result == 0 ) {

+				dgs->pValue->type = DBVT_WCHAR;

+				dgs->pValue->pwszVal = tmp;

+			}

+			else {

+				dgs->pValue->type = DBVT_ASCIIZ;

+				dgs->pValue->pszVal = (char *)mir_alloc(result);

+				WideCharToMultiByte( m_codePage, WC_NO_BEST_FIT_CHARS, tmp, -1, dgs->pValue->pszVal, result, NULL, NULL );

+				mir_free( tmp );

+			}

+		}

+		else {

+			dgs->pValue->type = DBVT_ASCIIZ;

+			mir_free( tmp );

+	}	}

+

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::GetContactSettingStr(HANDLE hContact, DBCONTACTGETSETTING *dgs)

+{

+	int iSaveType = dgs->pValue->type;

+

+	if ( GetContactSettingWorker(hContact, dgs, 0 ))

+		return 1;

+

+	if ( iSaveType == 0 || iSaveType == dgs->pValue->type )

+		return 0;

+

+	if ( dgs->pValue->type != DBVT_ASCIIZ && dgs->pValue->type != DBVT_UTF8 )

+		return 1;

+

+	if ( iSaveType == DBVT_WCHAR ) {

+		if ( dgs->pValue->type != DBVT_UTF8 ) {

+			int len = MultiByteToWideChar( CP_ACP, 0, dgs->pValue->pszVal, -1, NULL, 0 );

+			wchar_t* wszResult = ( wchar_t* )mir_alloc(( len+1 )*sizeof( wchar_t ));

+			if ( wszResult == NULL )

+				return 1;

+

+			MultiByteToWideChar( CP_ACP, 0, dgs->pValue->pszVal, -1, wszResult, len );

+			wszResult[ len ] = 0;

+			mir_free( dgs->pValue->pszVal );

+			dgs->pValue->pwszVal = wszResult;

+		}

+		else {

+			char* savePtr = NEWSTR_ALLOCA(dgs->pValue->pszVal);

+			mir_free( dgs->pValue->pszVal );

+			if ( !mir_utf8decode( savePtr, &dgs->pValue->pwszVal ))

+				return 1;

+		}

+	}

+	else if ( iSaveType == DBVT_UTF8 ) {

+		char* tmpBuf = mir_utf8encode( dgs->pValue->pszVal );

+		if ( tmpBuf == NULL )

+			return 1;

+

+		mir_free( dgs->pValue->pszVal );

+		dgs->pValue->pszVal = tmpBuf;

+	}

+	else if ( iSaveType == DBVT_ASCIIZ )

+		mir_utf8decode( dgs->pValue->pszVal, NULL );

+

+	dgs->pValue->type = iSaveType;

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::GetContactSettingStatic(HANDLE hContact, DBCONTACTGETSETTING *dgs)

+{

+	if ( GetContactSettingWorker(hContact, dgs, 1 ))

+		return 1;

+

+	if ( dgs->pValue->type == DBVT_UTF8 ) {

+		mir_utf8decode( dgs->pValue->pszVal, NULL );

+		dgs->pValue->type = DBVT_ASCIIZ;

+	}

+

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::FreeVariant(DBVARIANT *dbv)

+{

+	if ( dbv == 0 ) return 1;

+	switch ( dbv->type ) {

+		case DBVT_ASCIIZ:

+		case DBVT_UTF8:

+		case DBVT_WCHAR:

+		{

+			if ( dbv->pszVal ) mir_free(dbv->pszVal);

+			dbv->pszVal = 0;

+			break;

+		}

+		case DBVT_BLOB:

+		{

+			if ( dbv->pbVal ) mir_free(dbv->pbVal);

+			dbv->pbVal = 0;

+			break;

+		}

+	}

+	dbv->type = 0;

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::SetSettingResident(BOOL bIsResident, const char *pszSettingName)

+{

+	size_t cbSettingNameLen = strlen(pszSettingName) + 2;

+	if (cbSettingNameLen < 512) {

+		char*  szSetting;

+		char  szTemp[512];

+		strcpy( szTemp+1, pszSettingName);

+

+		mir_cslock lck(m_csDbAccess);

+		int idx = m_lSettings.getIndex(szTemp);

+		if (idx == -1)

+			szSetting = InsertCachedSetting( szTemp, cbSettingNameLen);

+		else

+			szSetting = m_lSettings[idx];

+

+		*szSetting = (char)bIsResident;

+

+		idx = m_lResidentSettings.getIndex(szSetting+1);

+		if (idx == -1) {

+			if (bIsResident)

+				m_lResidentSettings.insert(szSetting+1);

+		}

+		else if (!bIsResident)

+			m_lResidentSettings.remove(idx);

+	}

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::WriteContactSetting(HANDLE hContact, DBCONTACTWRITESETTING *dbcws)

+{

+	DBCONTACTWRITESETTING tmp;

+	DWORD ofsModuleName;

+	DBContactSettings dbcs;

+	PBYTE pBlob;

+	int settingNameLen = 0;

+	int moduleNameLen = 0;

+	int settingDataLen = 0;

+	int bytesRequired,bytesRemaining;

+	DWORD ofsContact,ofsSettingsGroup,ofsBlobPtr;

+

+	if (dbcws == NULL || dbcws->szSetting == NULL || dbcws->szModule == NULL )

+		return 1;

+

+	// the db format can't tolerate more than 255 bytes of space (incl. null) for settings+module name

+	settingNameLen = (int)strlen(dbcws->szSetting);

+	moduleNameLen = (int)strlen(dbcws->szModule);

+	if ( settingNameLen > 0xFE )

+	{

+		#ifdef _DEBUG

+			OutputDebugStringA("WriteContactSetting() got a > 255 setting name length. \n");

+		#endif

+		return 1;

+	}

+	if ( moduleNameLen > 0xFE )

+	{

+		#ifdef _DEBUG

+			OutputDebugStringA("WriteContactSetting() got a > 255 module name length. \n");

+		#endif

+		return 1;

+	}

+

+	tmp = *dbcws;

+

+	if (tmp.value.type == DBVT_WCHAR) {

+		if (tmp.value.pszVal != NULL) {

+			char* val = mir_utf8encodeW(tmp.value.pwszVal);

+			if ( val == NULL )

+				return 1;

+

+			tmp.value.pszVal = ( char* )alloca( strlen( val )+1 );

+			strcpy( tmp.value.pszVal, val );

+			mir_free(val);

+			tmp.value.type = DBVT_UTF8;

+		}

+		else return 1;

+	}

+

+	if (tmp.value.type != DBVT_BYTE && tmp.value.type != DBVT_WORD && tmp.value.type != DBVT_DWORD && tmp.value.type != DBVT_ASCIIZ && tmp.value.type != DBVT_UTF8 && tmp.value.type != DBVT_BLOB)

+		return 1;

+	if ((!tmp.szModule) || (!tmp.szSetting) || ((tmp.value.type == DBVT_ASCIIZ || tmp.value.type == DBVT_UTF8 )&& tmp.value.pszVal == NULL) || (tmp.value.type == DBVT_BLOB && tmp.value.pbVal == NULL))

+		return 1;

+

+	// the db can not tolerate strings/blobs longer than 0xFFFF since the format writes 2 lengths

+	switch( tmp.value.type ) {

+	case DBVT_ASCIIZ:		case DBVT_BLOB:	case DBVT_UTF8:

+		{	size_t len = ( tmp.value.type != DBVT_BLOB ) ? strlen(tmp.value.pszVal) : tmp.value.cpbVal;

+			if ( len >= 0xFFFF ) {

+				#ifdef _DEBUG

+					OutputDebugStringA("WriteContactSetting() writing huge string/blob, rejecting ( >= 0xFFFF ) \n");

+				#endif

+				return 1;

+			}

+		}

+	}

+

+	mir_cslockfull lck(m_csDbAccess);

+

+	char* szCachedSettingName = GetCachedSetting(tmp.szModule, tmp.szSetting, moduleNameLen, settingNameLen);

+	if ( tmp.value.type != DBVT_BLOB ) {

+		DBVARIANT* pCachedValue = GetCachedValuePtr(hContact, szCachedSettingName, 1);

+		if ( pCachedValue != NULL ) {

+			BOOL bIsIdentical = FALSE;

+			if ( pCachedValue->type == tmp.value.type ) {

+				switch(tmp.value.type) {

+					case DBVT_BYTE:   bIsIdentical = pCachedValue->bVal == tmp.value.bVal;  break;

+					case DBVT_WORD:   bIsIdentical = pCachedValue->wVal == tmp.value.wVal;  break;

+					case DBVT_DWORD:  bIsIdentical = pCachedValue->dVal == tmp.value.dVal;  break;

+					case DBVT_UTF8:

+					case DBVT_ASCIIZ: bIsIdentical = strcmp( pCachedValue->pszVal, tmp.value.pszVal ) == 0; break;

+				}

+				if ( bIsIdentical )

+					return 0;

+			}

+			SetCachedVariant(&tmp.value, pCachedValue);

+		}

+		if ( szCachedSettingName[-1] != 0 ) {

+			lck.unlock();

+			NotifyEventHooks(hSettingChangeEvent, (WPARAM)hContact, (LPARAM)&tmp);

+			return 0;

+		}

+	}

+	else GetCachedValuePtr(hContact, szCachedSettingName, -1);

+

+	ofsModuleName = GetModuleNameOfs(tmp.szModule);

+ 	if (hContact == 0) ofsContact = m_dbHeader.ofsUser;

+	else ofsContact = (DWORD)hContact;

+

+	DBContact dbc = *(DBContact*)DBRead(ofsContact,sizeof(DBContact),NULL);

+	if (dbc.signature != DBCONTACT_SIGNATURE)

+		return 1;

+

+	log0("write setting");

+	//make sure the module group exists

+	ofsSettingsGroup = GetSettingsGroupOfsByModuleNameOfs(&dbc,ofsModuleName);

+	if (ofsSettingsGroup == 0) {  //module group didn't exist - make it

+		if (tmp.value.type&DBVTF_VARIABLELENGTH) {

+		  if (tmp.value.type == DBVT_ASCIIZ || tmp.value.type == DBVT_UTF8) bytesRequired = (int)strlen(tmp.value.pszVal)+2;

+		  else if (tmp.value.type == DBVT_BLOB) bytesRequired = tmp.value.cpbVal+2;

+		}

+		else bytesRequired = tmp.value.type;

+		bytesRequired += 2+settingNameLen;

+		bytesRequired += (DB_SETTINGS_RESIZE_GRANULARITY-(bytesRequired%DB_SETTINGS_RESIZE_GRANULARITY))%DB_SETTINGS_RESIZE_GRANULARITY;

+		ofsSettingsGroup = CreateNewSpace(bytesRequired+offsetof(DBContactSettings,blob));

+		dbcs.signature = DBCONTACTSETTINGS_SIGNATURE;

+		dbcs.ofsNext = dbc.ofsFirstSettings;

+		dbcs.ofsModuleName = ofsModuleName;

+		dbcs.cbBlob = bytesRequired;

+		dbcs.blob[0] = 0;

+		dbc.ofsFirstSettings = ofsSettingsGroup;

+		DBWrite(ofsContact,&dbc,sizeof(DBContact));

+		DBWrite(ofsSettingsGroup,&dbcs,sizeof(DBContactSettings));

+		ofsBlobPtr = ofsSettingsGroup+offsetof(DBContactSettings,blob);

+		pBlob = (PBYTE)DBRead(ofsBlobPtr,1,&bytesRemaining);

+	}

+	else {

+		dbcs = *(DBContactSettings*)DBRead(ofsSettingsGroup,sizeof(DBContactSettings),&bytesRemaining);

+		//find if the setting exists

+		ofsBlobPtr = ofsSettingsGroup+offsetof(DBContactSettings,blob);

+		pBlob = (PBYTE)DBRead(ofsBlobPtr,1,&bytesRemaining);

+		while (pBlob[0]) {

+			NeedBytes(settingNameLen+1);

+			if (pBlob[0] == settingNameLen && !memcmp(pBlob+1,tmp.szSetting,settingNameLen))

+				break;

+			NeedBytes(1);

+			MoveAlong(pBlob[0]+1);

+			NeedBytes(3);

+			MoveAlong(1+GetSettingValueLength(pBlob));

+			NeedBytes(1);

+		}

+		if (pBlob[0]) {	 //setting already existed, and up to end of name is in cache

+			MoveAlong(1+settingNameLen);

+			//if different type or variable length and length is different

+			NeedBytes(3);

+			if (pBlob[0] != tmp.value.type || ((pBlob[0] == DBVT_ASCIIZ || pBlob[0] == DBVT_UTF8) && *(PWORD)(pBlob+1) != strlen(tmp.value.pszVal)) || (pBlob[0] == DBVT_BLOB && *(PWORD)(pBlob+1) != tmp.value.cpbVal)) {

+				//bin it

+				int nameLen,valLen;

+				DWORD ofsSettingToCut;

+				NeedBytes(3);

+				nameLen = 1+settingNameLen;

+				valLen = 1+GetSettingValueLength(pBlob);

+				ofsSettingToCut = ofsBlobPtr-nameLen;

+				MoveAlong(valLen);

+				NeedBytes(1);

+				while (pBlob[0]) {

+					MoveAlong(pBlob[0]+1);

+					NeedBytes(3);

+					MoveAlong(1+GetSettingValueLength(pBlob));

+					NeedBytes(1);

+				}

+				DBMoveChunk(ofsSettingToCut,ofsSettingToCut+nameLen+valLen,ofsBlobPtr+1-ofsSettingToCut);

+				ofsBlobPtr -= nameLen+valLen;

+				pBlob = (PBYTE)DBRead(ofsBlobPtr,1,&bytesRemaining);

+			}

+			else {

+				//replace existing setting at pBlob

+				MoveAlong(1);	//skip data type

+				switch(tmp.value.type) {

+					case DBVT_BYTE: DBWrite(ofsBlobPtr,&tmp.value.bVal,1); break;

+					case DBVT_WORD: EncodeDBWrite(ofsBlobPtr,&tmp.value.wVal,2); break;

+					case DBVT_DWORD: EncodeDBWrite(ofsBlobPtr,&tmp.value.dVal,4); break;

+					case DBVT_UTF8:

+					case DBVT_ASCIIZ: EncodeDBWrite(ofsBlobPtr+2,tmp.value.pszVal,(int)strlen(tmp.value.pszVal)); break;

+					case DBVT_BLOB: EncodeDBWrite(ofsBlobPtr+2,tmp.value.pbVal,tmp.value.cpbVal); break;

+				}

+				//quit

+				DBFlush(1);

+				lck.unlock();

+				//notify

+				NotifyEventHooks(hSettingChangeEvent, (WPARAM)hContact, (LPARAM)&tmp);

+				return 0;

+			}

+		}

+	}

+	//cannot do a simple replace, add setting to end of list

+	//pBlob already points to end of list

+	//see if it fits

+	if (tmp.value.type&DBVTF_VARIABLELENGTH) {

+	  if (tmp.value.type == DBVT_ASCIIZ || tmp.value.type == DBVT_UTF8) bytesRequired = (int)strlen(tmp.value.pszVal)+2;

+	  else if (tmp.value.type == DBVT_BLOB) bytesRequired = tmp.value.cpbVal+2;

+	}

+	else bytesRequired = tmp.value.type;

+	bytesRequired += 2+settingNameLen;

+	bytesRequired += ofsBlobPtr+1-(ofsSettingsGroup+offsetof(DBContactSettings,blob));

+	if ((DWORD)bytesRequired > dbcs.cbBlob) {

+		//doesn't fit: move entire group

+		DBContactSettings *dbcsPrev;

+		DWORD ofsDbcsPrev,ofsNew;

+

+		bytesRequired += (DB_SETTINGS_RESIZE_GRANULARITY-(bytesRequired%DB_SETTINGS_RESIZE_GRANULARITY))%DB_SETTINGS_RESIZE_GRANULARITY;

+		//find previous group to change its offset

+		ofsDbcsPrev = dbc.ofsFirstSettings;

+		if (ofsDbcsPrev == ofsSettingsGroup) ofsDbcsPrev = 0;

+		else {

+			dbcsPrev = (DBContactSettings*)DBRead(ofsDbcsPrev,sizeof(DBContactSettings),NULL);

+			while (dbcsPrev->ofsNext != ofsSettingsGroup) {

+				if (dbcsPrev->ofsNext == 0) DatabaseCorruption(NULL);

+				ofsDbcsPrev = dbcsPrev->ofsNext;

+				dbcsPrev = (DBContactSettings*)DBRead(ofsDbcsPrev,sizeof(DBContactSettings),NULL);

+			}

+		}

+

+		//create the new one

+		ofsNew = ReallocSpace(ofsSettingsGroup, dbcs.cbBlob+offsetof(DBContactSettings,blob), bytesRequired+offsetof(DBContactSettings,blob));

+

+		dbcs.cbBlob = bytesRequired;

+

+		DBWrite(ofsNew,&dbcs,offsetof(DBContactSettings,blob));

+		if (ofsDbcsPrev == 0) {

+			dbc.ofsFirstSettings = ofsNew;

+			DBWrite(ofsContact,&dbc,sizeof(DBContact));

+		}

+		else {

+			dbcsPrev = (DBContactSettings*)DBRead(ofsDbcsPrev,sizeof(DBContactSettings),NULL);

+			dbcsPrev->ofsNext = ofsNew;

+			DBWrite(ofsDbcsPrev,dbcsPrev,offsetof(DBContactSettings,blob));

+		}

+		ofsBlobPtr += ofsNew-ofsSettingsGroup;

+		ofsSettingsGroup = ofsNew;

+		pBlob = (PBYTE)DBRead(ofsBlobPtr,1,&bytesRemaining);

+	}

+	//we now have a place to put it and enough space: make it

+	DBWrite(ofsBlobPtr,&settingNameLen,1);

+	DBWrite(ofsBlobPtr+1,(PVOID)tmp.szSetting,settingNameLen);

+	MoveAlong(1+settingNameLen);

+	DBWrite(ofsBlobPtr,&tmp.value.type,1);

+	MoveAlong(1);

+	switch(tmp.value.type) {

+		case DBVT_BYTE: DBWrite(ofsBlobPtr,&tmp.value.bVal,1); MoveAlong(1); break;

+		case DBVT_WORD: EncodeDBWrite(ofsBlobPtr,&tmp.value.wVal,2); MoveAlong(2); break;

+		case DBVT_DWORD: EncodeDBWrite(ofsBlobPtr,&tmp.value.dVal,4); MoveAlong(4); break;

+		case DBVT_UTF8:

+		case DBVT_ASCIIZ:

+			{	int len = (int)strlen(tmp.value.pszVal);

+				DBWrite(ofsBlobPtr,&len,2);

+				EncodeDBWrite(ofsBlobPtr+2,tmp.value.pszVal,len);

+				MoveAlong(2+len);

+			}

+			break;

+		case DBVT_BLOB:

+			DBWrite(ofsBlobPtr,&tmp.value.cpbVal,2)	;

+			EncodeDBWrite(ofsBlobPtr+2,tmp.value.pbVal,tmp.value.cpbVal);

+			MoveAlong(2+tmp.value.cpbVal);

+			break;

+	}

+	

+	BYTE zero = 0;

+	DBWrite(ofsBlobPtr,&zero,1);

+	

+	//quit

+	DBFlush(1);

+	lck.unlock();

+

+	//notify

+	NotifyEventHooks(hSettingChangeEvent, (WPARAM)hContact, (LPARAM)&tmp );

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::DeleteContactSetting(HANDLE hContact, DBCONTACTGETSETTING *dbcgs)

+{

+	DBContact *dbc;

+	DWORD ofsModuleName,ofsSettingsGroup,ofsBlobPtr;

+	PBYTE pBlob;

+	int settingNameLen,moduleNameLen,bytesRemaining;

+	char* szCachedSettingName;

+	WPARAM saveWparam = (WPARAM)hContact;

+

+	if ( !dbcgs->szModule || !dbcgs->szSetting)

+		return 1;

+

+	// the db format can't tolerate more than 255 bytes of space (incl. null) for settings+module name

+	settingNameLen = (int)strlen(dbcgs->szSetting);

+	moduleNameLen = (int)strlen(dbcgs->szModule);

+	if ( settingNameLen > 0xFE ) {

+		#ifdef _DEBUG

+			OutputDebugStringA("DeleteContactSetting() got a > 255 setting name length. \n");

+		#endif

+		return 1;

+	}

+	if ( moduleNameLen > 0xFE ) {

+		#ifdef _DEBUG

+			OutputDebugStringA("DeleteContactSetting() got a > 255 module name length. \n");

+		#endif

+		return 1;

+	}

+

+	mir_cslockfull lck(m_csDbAccess);

+	ofsModuleName = GetModuleNameOfs(dbcgs->szModule);

+ 	if (hContact == 0)

+		hContact = (HANDLE)m_dbHeader.ofsUser;

+

+	dbc = (DBContact*)DBRead(hContact,sizeof(DBContact),NULL);

+	if (dbc->signature != DBCONTACT_SIGNATURE)

+		return 1;

+

+	//make sure the module group exists

+	ofsSettingsGroup = GetSettingsGroupOfsByModuleNameOfs(dbc,ofsModuleName);

+	if (ofsSettingsGroup == 0)

+		return 1;

+

+	//find if the setting exists

+	ofsBlobPtr = ofsSettingsGroup+offsetof(DBContactSettings,blob);

+	pBlob = (PBYTE)DBRead(ofsBlobPtr,1,&bytesRemaining);

+	while (pBlob[0]) {

+		NeedBytes(settingNameLen+1);

+		if (pBlob[0] == settingNameLen && !memcmp(pBlob+1,dbcgs->szSetting,settingNameLen))

+			break;

+		NeedBytes(1);

+		MoveAlong(pBlob[0]+1);

+		NeedBytes(3);

+		MoveAlong(1+GetSettingValueLength(pBlob));

+		NeedBytes(1);

+	}

+	if (!pBlob[0]) //setting didn't exist

+		return 1;

+

+	//bin it

+	int nameLen,valLen;

+	DWORD ofsSettingToCut;

+	MoveAlong(1+settingNameLen);

+	NeedBytes(3);

+	nameLen = 1+settingNameLen;

+	valLen = 1+GetSettingValueLength(pBlob);

+	ofsSettingToCut = ofsBlobPtr-nameLen;

+	MoveAlong(valLen);

+	NeedBytes(1);

+	while (pBlob[0]) {

+		MoveAlong(pBlob[0]+1);

+		NeedBytes(3);

+		MoveAlong(1+GetSettingValueLength(pBlob));

+		NeedBytes(1);

+	}

+	DBMoveChunk(ofsSettingToCut,ofsSettingToCut+nameLen+valLen,ofsBlobPtr+1-ofsSettingToCut);

+

+	szCachedSettingName = GetCachedSetting(dbcgs->szModule,dbcgs->szSetting,moduleNameLen,settingNameLen);

+	GetCachedValuePtr((HANDLE)saveWparam, szCachedSettingName, -1 );

+

+	//quit

+	DBFlush(1);

+	lck.unlock();

+	

+	//notify

+	DBCONTACTWRITESETTING dbcws = {0};

+	dbcws.szModule = dbcgs->szModule;

+	dbcws.szSetting = dbcgs->szSetting;

+	dbcws.value.type = DBVT_DELETED;

+	NotifyEventHooks(hSettingChangeEvent,saveWparam,(LPARAM)&dbcws);

+	return 0;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::EnumContactSettings(HANDLE hContact, DBCONTACTENUMSETTINGS* dbces)

+{

+	DBContact *dbc;

+	DWORD ofsModuleName,ofsContact,ofsBlobPtr;

+	int bytesRemaining, result;

+	PBYTE pBlob;

+	char szSetting[256];

+

+	if (!dbces->szModule)

+		return -1;

+

+	mir_cslock lck(m_csDbAccess);

+

+	ofsModuleName = GetModuleNameOfs(dbces->szModule);

+	if (hContact == 0) ofsContact = m_dbHeader.ofsUser;

+	else ofsContact = (DWORD)hContact;

+	dbc = (DBContact*)DBRead(ofsContact,sizeof(DBContact),NULL);

+	if (dbc->signature != DBCONTACT_SIGNATURE)

+		return -1;

+

+	dbces->ofsSettings = GetSettingsGroupOfsByModuleNameOfs(dbc,ofsModuleName);

+	if ( !dbces->ofsSettings)

+		return -1;

+

+	ofsBlobPtr = dbces->ofsSettings+offsetof(DBContactSettings,blob);

+	pBlob = (PBYTE)DBRead(ofsBlobPtr,1,&bytesRemaining);

+	if (pBlob[0] == 0)

+		return -1;

+

+	result = 0;

+	while (pBlob[0]) {

+		NeedBytes(1);

+		NeedBytes(1+pBlob[0]);

+		CopyMemory(szSetting,pBlob+1,pBlob[0]); szSetting[pBlob[0]] = 0;

+		result = (dbces->pfnEnumProc)(szSetting,dbces->lParam);

+		MoveAlong(1+pBlob[0]);

+		NeedBytes(3);

+		MoveAlong(1+GetSettingValueLength(pBlob));

+		NeedBytes(1);

+	}

+	return result;

+}

+

+STDMETHODIMP_(BOOL) CDdxMmap::EnumResidentSettings(DBMODULEENUMPROC pFunc, void *pParam)

+{

+	for(int i = 0; i < m_lResidentSettings.getCount(); i++) {

+		int ret = pFunc(m_lResidentSettings[i], 0, (LPARAM)pParam);

+		if (ret) return ret;

+	}

+	return 0;

+}