properly exit sway

- wlc_terminate() instead of exit(0)
- unlink IPC socket

include/ipc.h

@@ -12,6 +12,7 @@ enum ipc_command_type {
 	IPC_GET_VERSION    = 7,
 };
 
-void init_ipc(void);
+void ipc_init(void);
+void ipc_shutdown(void);
 
 #endif

sway/commands.c

@@ -186,7 +186,7 @@ static bool cmd_exit(struct sway_config *config, int argc, char **argv) {
 	}
 	// Close all views
 	container_map(&root_container, kill_views, NULL);
-	exit(0);
+	wlc_terminate();
 	return true;
 }
 

sway/ipc.c

@@ -16,6 +16,11 @@
 #include "commands.h"
 
 static int ipc_socket = -1;
+static struct wlc_event_source *ipc_event_source =  NULL;
+static struct sockaddr_un ipc_sockaddr = {
+	.sun_family = AF_UNIX,
+	.sun_path = "/tmp/sway-ipc.sock"
+};
 
 static const char ipc_magic[] = {'i', '3', '-', 'i', 'p', 'c'};
 
@@ -32,17 +37,12 @@ void ipc_client_disconnect(struct ipc_client *client);
 void ipc_client_handle_command(struct ipc_client *client);
 bool ipc_send_reply(struct ipc_client *client, const char *payload, uint32_t payload_length);
 
-void init_ipc() {
+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");
 	}
 
-	struct sockaddr_un ipc_sockaddr = {
-		.sun_family = AF_UNIX,
-		.sun_path = "/tmp/sway-ipc.sock"
-	};
-
 	if (getenv("SWAYSOCK") != NULL) {
 		strncpy(ipc_sockaddr.sun_path, getenv("SWAYSOCK"), sizeof(ipc_sockaddr.sun_path));
 	}
@@ -56,10 +56,19 @@ void init_ipc() {
 		sway_abort("Unable to listen on IPC socket");
 	}
 
-	wlc_event_loop_add_fd(ipc_socket, WLC_EVENT_READABLE, ipc_handle_connection, NULL);
+	ipc_event_source = wlc_event_loop_add_fd(ipc_socket, WLC_EVENT_READABLE, ipc_handle_connection, NULL);
+}
+
+void ipc_shutdown(void) {
+	if (ipc_event_source) {
+		wlc_event_source_remove(ipc_event_source);
+	}
+	close(ipc_socket);
+	unlink(ipc_sockaddr.sun_path);
 }
 
 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);
 

sway/main.c

@@ -100,13 +100,15 @@ int main(int argc, char **argv) {
 		free(config_path);
 	}
 
-	init_ipc();
+	ipc_init();
 
 	wlc_run();
 	if (devnull) {
 		fclose(devnull);
 	}
 
+	ipc_shutdown();
+
 	return 0;
 }