private void WriteFileData(BuilderContext context)
{
Stream outStream = context.RawStream;
bool disposeSource = false;
try
{
if (_source == null)
{
_source = new FileStream(_sourcePath, FileMode.Open, FileAccess.Read, FileShare.Read);
disposeSource = true;
}
if (_source.Position != 0)
{
_source.Position = 0;
}
long startPos = outStream.Position;
int bufferedBytes = Utilities.ReadFully(_source, context.IoBuffer, 0, context.DataBlockSize);
if (bufferedBytes < context.DataBlockSize)
{
// Fragment - less than one complete block of data
_inode.StartBlock = 0xFFFFFFFF;
_inode.FragmentKey = context.WriteFragment(bufferedBytes, out _inode.FragmentOffset);
_inode.FileSize = (uint)bufferedBytes;
}
else
{
// At least one full block, no fragments used
_inode.FragmentKey = 0xFFFFFFFF;
_lengths = new List<uint>();
_inode.StartBlock = (uint)startPos;
_inode.FileSize = bufferedBytes;
while (bufferedBytes > 0)
{
_lengths.Add(context.WriteDataBlock(context.IoBuffer, 0, bufferedBytes));
bufferedBytes = Utilities.ReadFully(_source, context.IoBuffer, 0, context.DataBlockSize);
_inode.FileSize += (uint)bufferedBytes;
}
}
}
finally
{
if (disposeSource)
{
_source.Dispose();
}
}
}
