IOStream *createRenderThread(int p_stream_buffer_size, unsigned int clientFlags)
{
    SocketStream*  stream = NULL;

    if (gRendererStreamMode == STREAM_MODE_TCP) {
        stream = new TcpStream(p_stream_buffer_size);
    } else {
#ifdef _WIN32
        stream = new Win32PipeStream(p_stream_buffer_size);
#else /* !_WIN32 */
        stream = new UnixStream(p_stream_buffer_size);
#endif
    }

    if (!stream) {
        ERR("createRenderThread failed to create stream\n");
        return NULL;
    }
    if (stream->connect(s_renderAddr) < 0) {
        ERR("createRenderThread failed to connect\n");
        delete stream;
        return NULL;
    }

    //
    // send clientFlags to the renderer
    //
    unsigned int *pClientFlags =
                (unsigned int *)stream->allocBuffer(sizeof(unsigned int));
    *pClientFlags = clientFlags;
    stream->commitBuffer(sizeof(unsigned int));

    return stream;
}
void connect() {
#if CONNECT
	// connect to network simulator
	assert(m_channel.connect() == 0);

	// send request to initialize
	InitializeReqMsg req;
	InitializeResMsg res;
	m_channel << req >> res;
#endif
}