message: fix size of tcp recv buffer on windows
diff: @@ -48,7 +48,7 @@ int SocketServerTCP::bind ()
  // ensure that library will not hang in blocking recv/send call
  DWORD timeout = 3000;
  DWORD value = 1;
  - DWORD buf_size = 65536 * 2;
  + DWORD buf_size = 65536 * 4;
  setsockopt (server_socket, IPPROTO_TCP, TCP_NODELAY, (const char *)&value, sizeof (value));
  setsockopt (server_socket, SOL_SOCKET, SO_RCVTIMEO, (const char *)&timeout, sizeof (timeout));
  setsockopt (server_socket, SOL_SOCKET, SO_SNDTIMEO, (const char *)&timeout, sizeof (timeout));
  @@ -82,7 +82,7 @@ void SocketServerTCP::accept_worker ()
  // ensure that library will not hang in blocking recv/send call
  DWORD timeout = 3000;
  DWORD value = 1;
  - DWORD buf_size = 65536 * 2;
  + DWORD buf_size = 65536 * 4;
  setsockopt (
  connected_socket, IPPROTO_TCP, TCP_NODELAY, (const char *)&value, sizeof (value));
  setsockopt (
  