BOOL CIndexedFilesEvictedDescriptorList::UpdateDescriptorCache(OIndex oi, void* pvCache)
{
CIndexedDataDescriptor* pcDescriptor;
pcDescriptor = mcDescriptors.Get(oi);
if (pcDescriptor)
{
pcDescriptor->Cache(pvCache);
return TRUE;
}
return FALSE;
}
void CIndexedFilesEvictedDescriptorList::NullCachedDescriptors(void)
{
SMapIterator sIter;
OIndex* poi;
CIndexedDataDescriptor* pcDesc;
BOOL bExists;
bExists = mcDescriptors.StartIteration(&sIter, (void**)&poi, (void**)&pcDesc);
while (bExists)
{
pcDesc->Cache(NULL);
bExists = mcDescriptors.Iterate(&sIter, (void**)&poi, (void**)&pcDesc);
}
}
void CIndexedHuge::SaveThirdLevelChunk(SIndexedThirdLevelSearch* psIndexedThirdLevelSearch)
{
OIndex iFirstChunkOI;
filePos iLength;
filePos iDescriptorsInFile;
int i;
CIndexedDataDescriptor* pcDescriptor;
OIndex iLastChunkOI;
filePos iOffset;
filePos iResult;
filePos iNumToWrite;
BOOL bResult;
void** pvCaches;
iFirstChunkOI = GetThirdLevelChunkOI(psIndexedThirdLevelSearch);
iLength = mpcFile->Size();
iDescriptorsInFile = iLength / sizeof(CIndexedDataDescriptor);
iLastChunkOI = -1;
for (i = miThirdLevelChunkWidth-1; i >= 0; i--)
{
pcDescriptor = GetCachedDescriptor(psIndexedThirdLevelSearch, i);
if (pcDescriptor->IsAllocated())
{
if ((!mbDirtyTesting) || (mbDirtyTesting && pcDescriptor->IsDirty()))
{
iLastChunkOI = pcDescriptor->GetIndex();
break;
}
}
}
if (iLastChunkOI != -1)
{
pvCaches = (void**)malloc(miThirdLevelChunkWidth * sizeof(void*));
for (i = 0; i < miThirdLevelChunkWidth; i++)
{
pcDescriptor = GetCachedDescriptor(psIndexedThirdLevelSearch, i);
pcDescriptor->Dirty(FALSE);
pvCaches[i] = pcDescriptor->GetCache();
pcDescriptor->Cache(NULL);
}
iOffset = iFirstChunkOI * sizeof(CIndexedDataDescriptor);
pcDescriptor = GetCachedDescriptor(psIndexedThirdLevelSearch, 0);
iNumToWrite = (filePos)((iLastChunkOI-iFirstChunkOI)+1);
if (iLength < iOffset)
{
bResult = PadFile(iLength, iOffset);
}
iResult = mpcFile->Write(EFSO_SET, iOffset, pcDescriptor, sizeof(CIndexedDataDescriptor), iNumToWrite);
miDiskWrites += iResult;
for (i = 0; i < miThirdLevelChunkWidth; i++)
{
pcDescriptor = GetCachedDescriptor(psIndexedThirdLevelSearch, i);
pcDescriptor->Cache(pvCaches[i]);
}
free(pvCaches);
}
}
