public virtual void EndWrite()
{
#if AGNOS_TRANSPORT_DEBUG
System.Console.WriteLine("Transport.EndWrite");
#endif
AssertBeganWrite();
if (wbuffer.Length > 0)
{
writeSInt32(outStream, wseq);
if (compressionThreshold > 0 && wbuffer.Length >= compressionThreshold)
{
compressionBuffer.Position = 0;
compressionBuffer.SetLength(0);
using (DeflateStream dfl = new DeflateStream(compressionBuffer, CompressionMode.Compress, true)) {
wbuffer.WriteTo(dfl);
}
#if AGNOS_TRANSPORT_DEBUG
//System.Console.WriteLine("Transport.EndWrite seq={0}, len={1}, uncomp={2}", wseq, compressionBuffer.Length, wbuffer.Length);
System.Console.WriteLine(">> " + repr(wbuffer.ToArray()));
#endif
writeSInt32(outStream, (int)compressionBuffer.Length); // packet length
writeSInt32(outStream, (int)wbuffer.Length); // uncompressed length
compressionBuffer.WriteTo(outStream);
}
else
{
#if AGNOS_TRANSPORT_DEBUG
System.Console.WriteLine(">> seq={0}, len={1}, uncomp=0", wseq, wbuffer.Length);
System.Console.WriteLine(">> " + repr(wbuffer.ToArray()));
#endif
writeSInt32(outStream, (int)wbuffer.Length); // packet length
writeSInt32(outStream, 0); // 0 means no compression
wbuffer.WriteTo(outStream);
}
outStream.Flush();
}
wbuffer.Position = 0;
wbuffer.SetLength(0);
wlock.Release();
}
//
// read interface
//
public virtual int BeginRead()
{
if (rlock.IsHeldByCurrentThread())
{
throw new IOException("BeginRead is not reentrant");
}
#if AGNOS_TRANSPORT_DEBUG
System.Console.WriteLine("TransportBegin.BeginRead");
#endif
rlock.Acquire();
try {
int seq = readSInt32(inStream);
int packetLength = readSInt32(inStream);
int uncompressedLength = readSInt32(inStream);
#if AGNOS_TRANSPORT_DEBUG
System.Console.WriteLine(">> seq={0}, len={1}, uncomp={2}", seq, packetLength, uncompressedLength);
#endif
if (readStream != null)
{
throw new InvalidOperationException("readStream must be null at this point");
}
readStream = new BoundInputStream(inStream, packetLength, true, false);
if (uncompressedLength > 0)
{
readStream = new BoundInputStream(new DeflateStream(readStream, CompressionMode.Decompress, false), packetLength, false, true);
}
return(seq);
} catch (Exception) {
readStream = null;
rlock.Release();
throw;
}
}
