public override void Send(System.IO.Stream stream, TimeSpan timeout, Information options) { if (_disposed) { throw new ObjectDisposedException(this.GetType().FullName); } if (!_connect) { throw new ConnectionException(); } if (stream == null) { throw new ArgumentNullException("stream"); } if (stream.Length == 0) { throw new ArgumentOutOfRangeException("stream"); } bool isCompress = true; if (options != null) { if (options.Contains("IsCompress")) { isCompress = (bool)options["IsCompress"]; } } lock (_sendLock) { using (RangeStream targetStream = new RangeStream(stream, stream.Position, stream.Length - stream.Position, true)) { try { List <KeyValuePair <byte, Stream> > list = new List <KeyValuePair <byte, Stream> >(); if (isCompress) { if (_otherCompressAlgorithm.HasFlag(CompressAlgorithm.Deflate)) { BufferStream deflateBufferStream = null; try { deflateBufferStream = new BufferStream(_bufferManager); using (DeflateStream deflateStream = new DeflateStream(deflateBufferStream, CompressionMode.Compress, true)) { byte[] compressBuffer = null; try { compressBuffer = _bufferManager.TakeBuffer(1024 * 4); int i = -1; while ((i = targetStream.Read(compressBuffer, 0, compressBuffer.Length)) > 0) { deflateStream.Write(compressBuffer, 0, i); } } finally { if (compressBuffer != null) { _bufferManager.ReturnBuffer(compressBuffer); } } } deflateBufferStream.Seek(0, SeekOrigin.Begin); list.Add(new KeyValuePair <byte, Stream>((byte)1, deflateBufferStream)); } catch (Exception e) { if (deflateBufferStream != null) { deflateBufferStream.Dispose(); } throw e; } } } list.Add(new KeyValuePair <byte, Stream>((byte)0, new WrapperStream(targetStream, true))); list.Sort((x, y) => { int c = x.Value.Length.CompareTo(y.Value.Length); if (c != 0) { return(c); } return(x.Key.CompareTo(y.Key)); }); #if DEBUG if (list[0].Value.Length != targetStream.Length) { Debug.WriteLine("Send : {0}→{1} {2}", NetworkConverter.ToSizeString(targetStream.Length), NetworkConverter.ToSizeString(list[0].Value.Length), NetworkConverter.ToSizeString(list[0].Value.Length - targetStream.Length)); } #endif for (int i = 1; i < list.Count; i++) { list[i].Value.Dispose(); } BufferStream headerStream = new BufferStream(_bufferManager); headerStream.WriteByte((byte)list[0].Key); using (var dataStream = new UniteStream(headerStream, list[0].Value)) { _connection.Send(dataStream, timeout, options); } } catch (ConnectionException e) { throw e; } catch (Exception e) { throw new ConnectionException(e.Message, e); } } } }