kinda final version of old MC convertor

git-svn-id: http://svn.miranda-ng.org/main/trunk@8558 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 34 insertions, 15 deletions

diff --git a/plugins/Db3x_mmap/src/dbevents.cpp b/plugins/Db3x_mmap/src/dbevents.cpp
index 9a9672f689..3c237c98a4 100644
--- a/plugins/Db3x_mmap/src/dbevents.cpp
+++ b/plugins/Db3x_mmap/src/dbevents.cpp
@@ -365,15 +365,34 @@ STDMETHODIMP_(HANDLE) CDb3Mmap::FindPrevEvent(HANDLE hDbEvent)
 }

 

 /////////////////////////////////////////////////////////////////////////////////////////

+// low-level history cleaner

+

+int CDb3Mmap::WipeContactHistory(DBContact *dbc)

+{

+	// drop subContact's history if any

+	for (DWORD dwOffset = dbc->ofsFirstEvent; dwOffset != 0;) {

+		DBEvent *pev = (DBEvent*)DBRead(dwOffset, sizeof(DBEvent), NULL);

+		if (pev->signature != DBEVENT_SIGNATURE) // broken chain, don't touch it

+			return 2;

+

+		DWORD dwNext = pev->ofsNext;

+		DeleteSpace(dwOffset, offsetof(DBEvent, blob) + pev->cbBlob);

+		dwOffset = dwNext;

+	}

+	dbc->eventCount = 0; dbc->ofsFirstEvent = dbc->ofsLastEvent = dbc->ofsFirstUnread = dbc->tsFirstUnread = 0;

+	return 0;

+}

+

+/////////////////////////////////////////////////////////////////////////////////////////

 // events convertor for DB_095_1_VERSION

 

-void CDb3Mmap::ConvertContactEvents(DBContact *cc)

+void CDb3Mmap::ConvertContactEvents(DBContact *dbc)

 {

 	BYTE *pBlob = (PBYTE)mir_alloc(65536);

 	DWORD ofsPrev = 0;

 

 	__try {

-		for (DWORD ofsEvent = cc->ofsFirstEvent; ofsEvent != 0;) {

+		for (DWORD ofsEvent = dbc->ofsFirstEvent; ofsEvent != 0;) {

 			DBEvent_094 pOld = *(DBEvent_094*)DBRead(ofsEvent, sizeof(DBEvent_094), NULL);

 			if (pOld.signature != DBEVENT_SIGNATURE)

 				break;

@@ -387,21 +406,21 @@ void CDb3Mmap::ConvertContactEvents(DBContact *cc)
 			DWORD ofsNew = ReallocSpace(ofsEvent, offsetof(DBEvent_094, blob) + pOld.cbBlob, offsetof(DBEvent, blob) + pOld.cbBlob);

 			DBEvent *pNew = (DBEvent*)&m_pDbCache[ofsNew];

 			pNew->signature = pOld.signature;

-			pNew->contactID = cc->dwContactID;

+			pNew->contactID = dbc->dwContactID;

 			memcpy(&pNew->ofsPrev, &pOld.ofsPrev, offsetof(DBEvent_094, blob) - sizeof(DWORD));

 			memcpy(&pNew->blob, pBlob, pNew->cbBlob);

 

 			if (ofsPrev == 0) // first event

-				cc->ofsFirstEvent = ofsNew, pNew->ofsPrev = 0;

+				dbc->ofsFirstEvent = ofsNew, pNew->ofsPrev = 0;

 			else {

 				DBEvent *pPrev = (DBEvent*)&m_pDbCache[ofsPrev];

 				pPrev->ofsNext = ofsNew, pNew->ofsPrev = ofsPrev;

 			}

 

-			if (cc->ofsFirstUnread == ofsEvent)

-				cc->ofsFirstUnread = ofsNew;

-			if (cc->ofsLastEvent == ofsEvent)

-				cc->ofsLastEvent = ofsNew;

+			if (dbc->ofsFirstUnread == ofsEvent)

+				dbc->ofsFirstUnread = ofsNew;

+			if (dbc->ofsLastEvent == ofsEvent)

+				dbc->ofsLastEvent = ofsNew;

 

 			ofsPrev = ofsNew;

 			ofsEvent = pNew->ofsNext;

@@ -415,15 +434,15 @@ void CDb3Mmap::ConvertContactEvents(DBContact *cc)
 

 void CDb3Mmap::ConvertEvents()

 {

-	DBContact cc = *(DBContact*)DBRead(m_dbHeader.ofsUser, sizeof(DBContact), NULL);

-	ConvertContactEvents(&cc);

-	DBWrite(m_dbHeader.ofsUser, &cc, sizeof(cc));

+	DBContact dbc = *(DBContact*)DBRead(m_dbHeader.ofsUser, sizeof(DBContact), NULL);

+	ConvertContactEvents(&dbc);

+	DBWrite(m_dbHeader.ofsUser, &dbc, sizeof(dbc));

 

 	for (DWORD dwOffset = m_dbHeader.ofsFirstContact; dwOffset != 0;) {

-		DBContact cc = *(DBContact*)DBRead(dwOffset, sizeof(DBContact), NULL);

-		ConvertContactEvents(&cc);

-		DBWrite(dwOffset, &cc, sizeof(cc));

-		dwOffset = cc.ofsNext;

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

+		ConvertContactEvents(&dbc);

+		DBWrite(dwOffset, &dbc, sizeof(dbc));

+		dwOffset = dbc.ofsNext;

 	}

 

 	FlushViewOfFile(m_pDbCache, 0);