internal int CompareTo(CFItem other)
{
return DirEntry.CompareTo(other.DirEntry);
}
/// <summary>
/// Sets the data for the current stream
/// </summary>
/// <param name="cfItem"></param>
/// <param name="buffer"></param>
internal void SetData(CFItem cfItem, Byte[] buffer)
{
SetStreamData(cfItem, buffer);
}
/// <summary>
/// Sets the data for the current stream
/// </summary>
/// <param name="cfItem"></param>
/// <param name="buffer"></param>
/// <exception cref="CFException">Raised when <see cref="buffer" /> is null</exception>
private void SetStreamData(CFItem cfItem, Byte[] buffer)
{
if (buffer == null)
throw new CFException("Parameter [buffer] cannot be null");
// Quick and dirty :-)
if (buffer.Length == 0) return;
var directoryEntry = cfItem.DirEntry;
var sectorType = SectorType.Normal;
var sectorSize = GetSectorSize();
if (buffer.Length < _header.MinSizeStandardStream)
{
sectorType = SectorType.Mini;
sectorSize = Sector.MinisectorSize;
}
// Check for transition ministream -> stream:
// Only in this case we need to free old sectors,
// otherwise they will be overwritten.
if (directoryEntry.StartSector != Sector.Endofchain)
{
if (
(buffer.Length < _header.MinSizeStandardStream &&
directoryEntry.Size > _header.MinSizeStandardStream)
||
(buffer.Length > _header.MinSizeStandardStream &&
directoryEntry.Size < _header.MinSizeStandardStream)
)
{
if (directoryEntry.Size < _header.MinSizeStandardStream)
{
FreeMiniChain(GetMiniSectorChain(directoryEntry.StartSector), _eraseFreeSectors);
}
else
{
FreeChain(GetNormalSectorChain(directoryEntry.StartSector), _eraseFreeSectors);
}
directoryEntry.Size = 0;
directoryEntry.StartSector = Sector.Endofchain;
}
}
var sectorChain
= GetSectorChain(directoryEntry.StartSector, sectorType);
Queue<Sector> freeList = null;
if (_sectorRecycle)
freeList = FindFreeSectors(sectorType); // Collect available free sectors
var streamView = new StreamView(sectorChain, sectorSize, buffer.Length, freeList, SourceStream);
streamView.Write(buffer, 0, buffer.Length);
switch (sectorType)
{
case SectorType.Normal:
SetNormalSectorChain(streamView.BaseSectorChain);
break;
case SectorType.Mini:
SetMiniSectorChain(streamView.BaseSectorChain);
break;
}
if (streamView.BaseSectorChain.Count > 0)
{
directoryEntry.StartSector = streamView.BaseSectorChain[0].Id;
directoryEntry.Size = buffer.Length;
}
else
{
directoryEntry.StartSector = Sector.Endofchain;
directoryEntry.Size = 0;
}
}
internal int CompareTo(CFItem other)
{
return(DirEntry.CompareTo(other.DirEntry));
}
