C++ (Cpp) wlc_event_loop_add_fd Examples

Example #1

File: ipc.c Project: a-day-old-bagel/sway

void ipc_init(void) {
	ipc_socket = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
	if (ipc_socket == -1) {
		sway_abort("Unable to create IPC socket");
	}

	ipc_sockaddr = ipc_user_sockaddr();

	if (getenv("SWAYSOCK") != NULL) {
		strncpy(ipc_sockaddr->sun_path, getenv("SWAYSOCK"), sizeof(ipc_sockaddr->sun_path));
	}

	unlink(ipc_sockaddr->sun_path);
	if (bind(ipc_socket, (struct sockaddr *)ipc_sockaddr, sizeof(*ipc_sockaddr)) == -1) {
		sway_abort("Unable to bind IPC socket");
	}

	if (listen(ipc_socket, 3) == -1) {
		sway_abort("Unable to listen on IPC socket");
	}

	// Set i3 IPC socket path so that i3-msg works out of the box
	setenv("I3SOCK", ipc_sockaddr->sun_path, 1);

	ipc_client_list = create_list();

	ipc_event_source = wlc_event_loop_add_fd(ipc_socket, WLC_EVENT_READABLE, ipc_handle_connection, NULL);
}

Example #2

File: ipc-server.c Project: SirCmpwn/sway

void ipc_init(void) {
	ipc_socket = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0);
	if (ipc_socket == -1) {
		sway_abort("Unable to create IPC socket");
	}

	ipc_sockaddr = ipc_user_sockaddr();

	// We want to use socket name set by user, not existing socket from another sway instance.
	if (getenv("SWAYSOCK") != NULL && access(getenv("SWAYSOCK"), F_OK) == -1) {
		strncpy(ipc_sockaddr->sun_path, getenv("SWAYSOCK"), sizeof(ipc_sockaddr->sun_path));
		ipc_sockaddr->sun_path[sizeof(ipc_sockaddr->sun_path) - 1] = 0;
	}

	unlink(ipc_sockaddr->sun_path);
	if (bind(ipc_socket, (struct sockaddr *)ipc_sockaddr, sizeof(*ipc_sockaddr)) == -1) {
		sway_abort("Unable to bind IPC socket");
	}

	if (listen(ipc_socket, 3) == -1) {
		sway_abort("Unable to listen on IPC socket");
	}

	// Set i3 IPC socket path so that i3-msg works out of the box
	setenv("I3SOCK", ipc_sockaddr->sun_path, 1);
	setenv("SWAYSOCK", ipc_sockaddr->sun_path, 1);

	ipc_client_list = create_list();
	ipc_get_pixel_requests = create_list();

	ipc_event_source = wlc_event_loop_add_fd(ipc_socket, WLC_EVENT_READABLE, ipc_handle_connection, NULL);
}

Example #3

File: ipc.c Project: a-day-old-bagel/sway

int ipc_handle_connection(int fd, uint32_t mask, void *data) {
	(void) fd; (void) data;
	sway_log(L_DEBUG, "Event on IPC listening socket");
	assert(mask == WLC_EVENT_READABLE);

	int client_fd = accept(ipc_socket, NULL, NULL);
	if (client_fd == -1) {
		sway_log_errno(L_INFO, "Unable to accept IPC client connection");
		return 0;
	}

	int flags;
	if ((flags=fcntl(client_fd, F_GETFD)) == -1 || fcntl(client_fd, F_SETFD, flags|FD_CLOEXEC) == -1) {
		sway_log_errno(L_INFO, "Unable to set CLOEXEC on IPC client socket");
		return 0;
	}

	struct ipc_client* client = malloc(sizeof(struct ipc_client));
	client->payload_length = 0;
	client->fd = client_fd;
	client->event_source = wlc_event_loop_add_fd(client_fd, WLC_EVENT_READABLE, ipc_client_handle_readable, client);

	list_add(ipc_client_list, client);

	return 0;
}

Example #4

File: ipc-server.c Project: SirCmpwn/sway

int ipc_handle_connection(int fd, uint32_t mask, void *data) {
	(void) fd; (void) data;
	sway_log(L_DEBUG, "Event on IPC listening socket");
	assert(mask == WLC_EVENT_READABLE);

	int client_fd = accept(ipc_socket, NULL, NULL);
	if (client_fd == -1) {
		sway_log_errno(L_INFO, "Unable to accept IPC client connection");
		return 0;
	}

	int flags;
	if ((flags=fcntl(client_fd, F_GETFD)) == -1 || fcntl(client_fd, F_SETFD, flags|FD_CLOEXEC) == -1) {
		sway_log_errno(L_INFO, "Unable to set CLOEXEC on IPC client socket");
		close(client_fd);
		return 0;
	}

	pid_t pid = get_client_pid(client_fd);
	if (!(get_feature_policy(pid) & FEATURE_IPC)) {
		sway_log(L_INFO, "Permission to connect to IPC socket denied to %d", pid);
		const char *error = "{\"success\": false, \"message\": \"Permission denied\"}";
		if (write(client_fd, &error, sizeof(error)) < (int)sizeof(error)) {
			sway_log(L_DEBUG, "Failed to write entire error");
		}
		close(client_fd);
		return 0;
	}

	struct ipc_client* client = malloc(sizeof(struct ipc_client));
	client->payload_length = 0;
	client->fd = client_fd;
	client->subscribed_events = 0;
	client->event_source = wlc_event_loop_add_fd(client_fd, WLC_EVENT_READABLE, ipc_client_handle_readable, client);

	list_add(ipc_client_list, client);

	return 0;
}