static void SendMessage(Stream stream, byte[] buffer, ArrayBuffer msg, bool setMask, MaskHelper maskHelper) { int msgLength = msg.count; int sendLength = WriteHeader(buffer, msgLength, setMask); if (setMask) { sendLength = maskHelper.WriteMask(buffer, sendLength); } msg.CopyTo(buffer, sendLength); sendLength += msgLength; // dump before mask on Log.DumpBuffer("Send", buffer, 0, sendLength); if (setMask) { int messageOffset = sendLength - msgLength; MessageProcessor.ToggleMask(buffer, messageOffset, msgLength, buffer, messageOffset - Constants.MaskSize); } stream.Write(buffer, 0, sendLength); }
/// <returns>new offset in buffer</returns> static int SendMessage(byte[] buffer, int startOffset, ArrayBuffer msg, bool setMask, MaskHelper maskHelper) { int msgLength = msg.count; int offset = WriteHeader(buffer, startOffset, msgLength, setMask); if (setMask) { offset = maskHelper.WriteMask(buffer, offset); } msg.CopyTo(buffer, offset); offset += msgLength; // dump before mask on Log.DumpBuffer("Send", buffer, startOffset, offset); if (setMask) { int messageOffset = offset - msgLength; MessageProcessor.ToggleMask(buffer, messageOffset, msgLength, buffer, messageOffset - Constants.MaskSize); } return(offset); }
static void ReadOneMessage(Config config, byte[] buffer) { (Connection conn, int maxMessageSize, bool expectMask, ConcurrentQueue <Message> queue, BufferPool bufferPool) = config; Stream stream = conn.stream; Header header = ReadHeader(config, buffer); int msgOffset = header.offset; header.offset = ReadHelper.Read(stream, buffer, header.offset, header.payloadLength); if (header.finished) { switch (header.opcode) { case 2: HandleArrayMessage(config, buffer, msgOffset, header.payloadLength); break; case 8: HandleCloseMessage(config, buffer, msgOffset, header.payloadLength); break; } } else { // todo cache this to avoid allocations Queue <ArrayBuffer> fragments = new Queue <ArrayBuffer>(); fragments.Enqueue(CopyMessageToBuffer(bufferPool, expectMask, buffer, msgOffset, header.payloadLength)); int totalSize = header.payloadLength; while (!header.finished) { header = ReadHeader(config, buffer, opCodeContinuation: true); msgOffset = header.offset; header.offset = ReadHelper.Read(stream, buffer, header.offset, header.payloadLength); fragments.Enqueue(CopyMessageToBuffer(bufferPool, expectMask, buffer, msgOffset, header.payloadLength)); totalSize += header.payloadLength; MessageProcessor.ThrowIfMsgLengthTooLong(totalSize, maxMessageSize); } ArrayBuffer msg = bufferPool.Take(totalSize); msg.count = 0; while (fragments.Count > 0) { ArrayBuffer part = fragments.Dequeue(); part.CopyTo(msg.array, msg.count); msg.count += part.count; part.Release(); } // dump after mask off Log.DumpBuffer($"Message", msg); queue.Enqueue(new Message(conn.connId, msg)); } }