退出时清理屏幕信息

src/monitor.c

@@ -25,3 +25,27 @@ void monitor_initialize_tag(monitor_t *monitor, const char **tags) {
 
   monitor->selected_tag = monitor->tag_list;
 }
+
+static void tag_clean(tag_t *tag) {
+  tag_t *next_tag = nullptr;
+  for (tag_t *t = tag; t; t = next_tag) {
+    p_delete(&t->name);
+
+    next_tag = t->next;
+    p_delete(&t);
+  }
+}
+
+void monitor_clean(monitor_t *monitor) {
+  monitor_t *next_monitor = nullptr;
+  for (monitor_t *m = monitor; m; m = next_monitor) {
+    p_delete(&m->name);
+    tag_clean(m->tag_list);
+
+    m->selected_tag = nullptr;
+    m->tag_list = nullptr;
+
+    next_monitor = m->next;
+    p_delete(&m);
+  }
+}

src/monitor.h

@@ -6,3 +6,4 @@
 
 void monitor_initialize_tag(monitor_t *monitor, const char **tags);
 void monitor_select_tag(monitor_t *monitor, uint32_t tag_mask);
+void monitor_clean(monitor_t *monitor);

src/wm.c

@@ -28,6 +28,8 @@ static void wm_check_other_wm(void);
 static void wm_check_xcb_extensions(void);
 static void wm_detect_monitor(void);
 static void wm_scan_clients(void);
+static void wm_clean(void);
+static void wm_setup(void);
 
 wm_t wm;
 
@@ -37,7 +39,10 @@ static char **cmd_argv;
 /** A pipe that is used to asynchronously handle SIGCHLD */
 static int sigchld_pipe[2];
 
-static void wm_atexit(bool restart) { wm.need_restart = restart; }
+static void wm_atexit(bool restart) {
+  wm.need_restart = restart;
+  wm_clean();
+}
 
 static gboolean restart_on_signal(gpointer data) {
   wm_restart();
@@ -63,10 +68,12 @@ static void signal_child(int signum) {
   assert(res == 1);
 }
 
+static guint sources[3] = {0};
+
 void wm_setup_signal(void) {
-  g_unix_signal_add(SIGINT, exit_on_signal, NULL);
+  sources[0] = g_unix_signal_add(SIGINT, exit_on_signal, NULL);
-  g_unix_signal_add(SIGTERM, exit_on_signal, NULL);
+  sources[1] = g_unix_signal_add(SIGTERM, exit_on_signal, NULL);
-  g_unix_signal_add(SIGHUP, restart_on_signal, NULL);
+  sources[2] = g_unix_signal_add(SIGHUP, restart_on_signal, NULL);
 
   struct sigaction sa = {.sa_handler = signal_fatal, .sa_flags = SA_RESETHAND};
   sigemptyset(&sa.sa_mask);
@@ -239,6 +246,22 @@ void wm_detect_monitor(void) {
 
 void wm_scan_clients(void) {}
 
+void wm_clean(void) {
+  text_clean_pango_layout();
+  monitor_clean(wm.monitor_list);
+
+  for (int i = 0; i < countof(sources); i++) {
+    guint source_id = sources[i];
+    if (source_id) g_source_remove(source_id);
+  }
+}
+
+static void wm_setup(void) {
+  for (monitor_t *m = wm.monitor_list; m; m = m->next) {
+    monitor_initialize_tag(m, (const char **)tags);
+  }
+}
+
 void wm_restart(void) {
   wm_atexit(true);
   execvp(cmd_argv[0], cmd_argv);
@@ -272,9 +295,7 @@ int main(int argc, char *argv[]) {
   wm_check_xcb_extensions();
 
   wm_detect_monitor();
-  for (monitor_t *m = wm.monitor_list; m; m = m->next) {
+  wm_setup();
-    monitor_initialize_tag(m, (const char **)tags);
-  }
 
   debug_show_monitor_list();