wl flush and read.c

	// send data

	while (connection->out.head - connection->out.tail > 0) {
		ring_buffer_get_iov(&connection->out, iov, &count);

		if (len == SOCKET_ERROR)
			return -1;
		
		struct wl_ring_buffer * buffer = &connection->out;

		do {
			len = send(connection->fd, ring_buffer_size(buffer), sizeof(size_t), 0);
		} while (len == SOCKET_ERROR && WSAGetLastError() == WSAEINTR);

		do {
			len = send(connection->fd, connection->out.data, ring_buffer_size(buffer), 0);
		} while (len == SOCKET_ERROR && WSAGetLastError() == WSAEINTR);

		connection->out.tail += len;
	}

	connection->want_flush = 0;

	return connection->out.head - tail;


// ...



	// recieve data

	size_t ring_buf_len;
	do {
		len = recv(connection->fd, &ring_buf_len, sizeof(size_t), 0);
	} while (len == SOCKET_ERROR && WSAGetLastError() == WSAEINTR);

	RING_BUFFER_TYPE * ring_buf_data = zalloc(ring_buf_len);

	do {
		len = recv(connection->fd, ring_buf_data, ring_buf_len, 0);
	} while (len == SOCKET_ERROR && WSAGetLastError() == WSAEINTR);

	if (len <= 0)
		return len;

	connection->in.head += len;

	return wl_connection_pending_input(connection);