+static void pl_get_layer_pos(int *x, int *y, int *w, int *h)
+{
+ *x = g_layer_x;
+ *y = g_layer_y;
+ *w = g_layer_w;
+ *h = g_layer_h;
+}
+
+extern int UseFrameSkip; // hmh
+
+const struct rearmed_cbs pl_rearmed_cbs = {
+ pl_get_layer_pos,
+ pl_fbdev_open,
+ pl_fbdev_set_mode,
+ pl_fbdev_flip,
+ pl_fbdev_close,
+ &UseFrameSkip,
+};
+
+/* watchdog */
+static void *watchdog_thread(void *unused)
+{
+ int vsync_cnt_old = 0;
+ int seen_dead = 0;
+ int sleep_time = 5;
+
+ while (1)
+ {
+ sleep(sleep_time);
+
+ if (stop) {
+ seen_dead = 0;
+ sleep_time = 5;
+ continue;
+ }
+ if (vsync_cnt != vsync_cnt_old) {
+ vsync_cnt_old = vsync_cnt;
+ seen_dead = 0;
+ sleep_time = 2;
+ continue;
+ }
+
+ seen_dead++;
+ sleep_time = 1;
+ if (seen_dead > 1)
+ fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
+ if (seen_dead > 4) {
+ fprintf(stderr, "watchdog: lockup detected, aborting\n");
+ // we can't do any cleanup here really, the main thread is
+ // likely touching resources and would crash anyway
+ abort();
+ }
+ }
+}
+
+void pl_start_watchdog(void)
+{
+ pthread_attr_t attr;
+ pthread_t tid;
+ int ret;
+
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+ ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
+ if (ret != 0)
+ fprintf(stderr, "could not start watchdog: %d\n", ret);
+}
+