C++ (Cpp) g_pipe_s Examples

Example #1

File: g_pipe.cpp Project: maxdev1/ghost

// redirect
void g_pipe(g_fd* out_write, g_fd* out_read) {
	return g_pipe_s(out_write, out_read, 0);
}

Example #2

File: ui.cpp Project: emcifuntik/ghost

/**
 * Opens a connection to the window server.
 */
g_ui_open_status g_ui::open() {

	// check if already open
	if (g_ui_ready) {
		return G_UI_OPEN_STATUS_EXISTING;
	}

	// get window managers id
	g_tid window_mgr = g_task_get_id(G_WINDOW_MANAGER_IDENTIFIER);
	if (window_mgr == -1) {
		g_logger::log("failed to retrieve task id of window server");
		return G_UI_OPEN_STATUS_COMMUNICATION_FAILED;
	}

	// open in/out pipes
	g_fs_pipe_status status;

	g_fd g_ui_channel_out_read;
	g_pipe_s(&g_ui_channel_out, &g_ui_channel_out_read, &status);
	g_fd g_ui_channel_in_write;
	g_pipe_s(&g_ui_channel_in_write, &g_ui_channel_in, &status);

	if (status == G_FS_PIPE_ERROR) {
		g_logger::log("failed to open UI communication pipe");
		return G_UI_OPEN_STATUS_COMMUNICATION_FAILED;
	}

	// tell window manager to open
	uint32_t topic = g_ipc_next_topic();

	g_message_empty(open_request);
	open_request.type = G_UI_COMMAND_OPEN_REQUEST;
	open_request.topic = topic;
	open_request.parameterA = g_ui_channel_out_read;
	open_request.parameterB = g_ui_channel_in_write;

	auto request_status = g_send_msg(window_mgr, &open_request);
	if (request_status != G_MESSAGE_SEND_STATUS_SUCCESSFUL) {
		g_logger::log("failed to send UI-open request to window server");
		return G_UI_OPEN_STATUS_COMMUNICATION_FAILED;
	}

	// wait for response
	g_message_empty(open_response);
	auto response_status = g_recv_topic_msg(g_get_tid(), topic, &open_response);
	if (response_status != G_MESSAGE_RECEIVE_STATUS_SUCCESSFUL) {
		g_logger::log("failed to receive UI-open response from window server");
		return G_UI_OPEN_STATUS_COMMUNICATION_FAILED;
	}

	// check response message
	if (open_response.type != G_UI_COMMAND_OPEN_RESPONSE) {
		g_logger::log("window servers UI-open response was not a proper 'opened'-response");
		return G_UI_OPEN_STATUS_COMMUNICATION_FAILED;
	}

	// start asynchronous receiver
	g_create_thread((void*) &asynchronous_receiver_thread);
	g_create_thread((void*) &event_dispatch_thread);

	// mark UI as ready
	g_logger::log("successfully opened UI in window server");
	g_ui_ready = true;
	return G_UI_OPEN_STATUS_SUCCESSFUL;
}