22     WatcherTask *watcher = (WatcherTask *)taskHandle;  in HandleWatcherEvent_()  local
26     if (watcher->processEvent != NULL) {  in HandleWatcherEvent_()
27         watcher->processEvent(taskHandle, fd, &events, (void *)userData);  in HandleWatcherEvent_()
29     watcher = (WatcherTask *)GetTaskByFd((EventLoop *)loopHandle, fd);  in HandleWatcherEvent_()
30     LE_ONLY_CHECK(watcher != NULL, return 0);  in HandleWatcherEvent_()
31     if (watcher->base.flags & WATCHER_ONCE) {  in HandleWatcherEvent_()
32         loop->delEvent(loop, fd, watcher->events);  in HandleWatcherEvent_()
36         loop->delEvent(loop, fd, watcher->events);  in HandleWatcherEvent_()
39     if (events != watcher->events) {  in HandleWatcherEvent_()
40         watcher->events = events;  in HandleWatcherEvent_()
41         loop->modEvent(loop, (const BaseTask *)taskHandle, watcher->events);  in HandleWatcherEvent_()