程序结束时清理 xcb 模块环境

src/xcb/xcb.c

@@ -225,3 +225,22 @@ void free_window_list(window_list_t *window_list) {
   free(window_list->list);
   free(window_list);
 }
+
+void clean_xcb(void) {
+  if (wm_check_window != XCB_NONE) {
+    xcb_destroy_window(conn, wm_check_window);
+    wm_check_window = XCB_NONE;
+  }
+
+  if (ewmh) {
+    if (!ewmh_init_failed) {
+      xcb_ewmh_connection_wipe(ewmh);
+    }
+    ewmh_init_failed = false;
+    ewmh = NULL;
+  }
+
+  xcb_disconnect(conn);
+  conn = NULL;
+  screen = NULL;
+}