public void Dispose()
{
if (Buffer != null)
{
ByteArrayPool.Return(Buffer);
}
}
// send message (via stream) with the <size,content> message structure
protected static bool SendMessage(NetworkStream stream, byte[] content)
{
// can we still write to this socket (not disconnected?)
if (!stream.CanWrite)
{
Logger.LogWarning("Send: stream not writeable: " + stream);
return(false);
}
// check size
if (content.Length > ushort.MaxValue)
{
Logger.LogError("Send: message too big(" + content.Length + ") max=" + ushort.MaxValue);
return(false);
}
// stream.Write throws exceptions if client sends with high
// frequency and the server stops
try
{
// write header+content at once via payload array. writing
// header,payload separately would cause 2 TCP packets to be
// sent if nagle's algorithm is disabled(2x TCP header overhead)
byte[] payload = ByteArrayPool.Take();
// construct header (size)
UShortToBytes((ushort)content.Length, payload);
Array.Copy(content, 0, payload, 2, content.Length);
stream.Write(payload, 0, 2 + content.Length);
ByteArrayPool.Return(payload);
// flush to make sure it is being sent immediately
stream.Flush();
return(true);
}
catch (Exception exception)
{
// log as regular message because servers do shut down sometimes
Logger.Log("Send: stream.Write exception: " + exception);
return(false);
}
}
