public static uint MoveStreamWithCrc32(Stream src, Stream dest, int length, uint crc)
{
byte[] buffer = new byte[0x8000];
while (length > 0)
{
int count = src.Read(buffer, 0, Math.Min(buffer.Length, length));
if (count == 0)
{
break;
}
crc = CheckSum.ComputeHash2(buffer, 0, count, crc);
dest.Write(buffer, 0, count);
length -= count;
}
return(crc);
}
private void CallBack(IAsyncResult ir)
{
byte[] buffer = (byte[])ir.AsyncState;
int count = fs.EndRead(ir);
this.length -= count;
bool doEnd = this.length <= 0;
this.evCallBack.WaitOne();
if (!doEnd)
{
byte[] nextBuffer = buffer == buffer1 ? buffer2 : buffer1;
Begin(nextBuffer);
}
this.crc = CheckSum.ComputeHash(buffer, 0, count, this.crc);
this.evCallBack.Set();
if (doEnd)
{
this.End();
}
}