/*
* private static void InvalidatePMap(PSTFile file)
* {
* file.BaseStream.Seek(PMapPage.FirstPageOffset, SeekOrigin.Begin);
* PMapPage pmap = PMapPage.GetFilledPMapPage();
* byte[] buffer = pmap.GetBytes(PMapPage.FirstPageOffset);
* file.BaseStream.Write(buffer, 0, buffer.Length);
* }
*
* private static void InvalidateDList(PSTFile file)
* {
* file.BaseStream.Seek(DensityListPage.FirstPageOffset, SeekOrigin.Begin);
* byte[] buffer = new byte[Page.Length];
* file.BaseStream.Write(buffer, 0, buffer.Length);
* }*/
private static AllocationMapPage GrowPST(PSTFile file, int newPageIndex)
{
// The PST file MUST grow at integer multiples of the number of bytes mapped by an AMap
ulong oldLength = (ulong)file.BaseStream.Length;
ulong newLength = oldLength + AllocationMapPage.MapppedLength;
file.BaseStream.Seek(0, SeekOrigin.End);
AllocationMapPage amap = new AllocationMapPage();
int freeSpaceInAMap = AllocationMapPage.MapppedLength - 512;
byte[] buffer = new byte[AllocationMapPage.MapppedLength];
if (newPageIndex % 8 == 0)
{
// We need to write a PMap for backward compatibility
PMapPage pmap = PMapPage.GetFilledPMapPage();
ulong pmapOffset = PMapPage.FirstPageOffset + (ulong)(newPageIndex / 8) * PMapPage.MapppedLength;
Array.Copy(pmap.GetBytes(pmapOffset), 0, buffer, 512, Page.Length);
// Allocate the PMap out of the AMap
amap.AllocateSpace(512, 512);
freeSpaceInAMap -= 512;
if (newPageIndex >= 128 && FreeMapPage.GetFreeMapEntryIndex(newPageIndex) == 0)
{
// We need to write an FMap for backward compatibility
FreeMapPage fmap = new FreeMapPage();
fmap.rgbFMapBits[0] = 255;
int fmapPageIndex = FreeMapPage.GetFreeMapPageIndex(newPageIndex);
ulong fmapOffset = FreeMapPage.FirstPageOffset + (ulong)fmapPageIndex * FreeMapPage.MapppedLength;
Array.Copy(fmap.GetBytes(fmapOffset), 0, buffer, 1024, Page.Length);
// Allocate the FMap out of the AMap
amap.AllocateSpace(1024, 512);
freeSpaceInAMap -= 512;
}
// FPMap page will always follow an FMap page
if (newPageIndex >= (128 * 64) && FPMapPage.GetFPMapEntryIndex(newPageIndex) == 0)
{
// We need to write a FPMap for backward compatibility
FPMapPage fpmap = new FPMapPage();
int fpmapPageIndex = FPMapPage.GetFPMapPageIndex(newPageIndex);
ulong fpmapOffset = FPMapPage.FirstPageOffset + (ulong)fpmapPageIndex * FPMapPage.MapppedLength;
Array.Copy(fpmap.GetBytes(fpmapOffset), 0, buffer, 1536, Page.Length);
// Allocate the FPMap out of the AMap
amap.AllocateSpace(1536, 512);
freeSpaceInAMap -= 512;
}
}
Array.Copy(amap.GetBytes(oldLength), 0, buffer, 0, AllocationMapPage.Length);
file.BaseStream.Write(buffer, 0, buffer.Length);
file.Header.root.ibFileEOF = newLength;
file.Header.root.ibAMapLast = oldLength;
file.Header.root.cbAMapFree += (ulong)freeSpaceInAMap;
file.Header.WriteToStream(file.BaseStream, file.WriterCompatibilityMode);
return(amap);
}
private static void UpdateFMap(PSTFile file, AllocationMapPage targetPage, int targetPageIndex)
{
byte fMax = (byte)Math.Min(255, targetPage.GetMaxContiguousSpace() / 64);
int fmapPageIndex = FreeMapPage.GetFreeMapPageIndex(targetPageIndex);
int fmapPageEntryIndex = FreeMapPage.GetFreeMapEntryIndex(targetPageIndex);
if (fmapPageIndex >= 0)
{
FreeMapPage fmap = FreeMapPage.ReadFreeMapPage(file, fmapPageIndex);
fmap.rgbFMapBits[fmapPageEntryIndex] = fMax;
fmap.WriteFreeMapPage(file, fmapPageIndex);
}
else
{
file.Header.rgbFM[fmapPageEntryIndex] = fMax;
}
}
