41 static void uv__async_send(uv_loop_t* loop);
42 static int uv__async_start(uv_loop_t* loop);
45 int uv_async_init(uv_loop_t* loop, uv_async_t* handle, uv_async_cb async_cb) {  in uv_async_init()  argument
48   err = uv__async_start(loop);  in uv_async_init()
52   uv__handle_init(loop, (uv_handle_t*)handle, UV_ASYNC);  in uv_async_init()
56   QUEUE_INSERT_TAIL(&loop->async_handles, &handle->queue);  in uv_async_init()
73   uv__async_send(handle->loop);  in uv_async_send()
122 static void uv__async_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {  in uv__async_io()  argument
129   assert(w == &loop->async_io_watcher);  in uv__async_io()
149   QUEUE_MOVE(&loop->async_handles, &queue);  in uv__async_io()
155     QUEUE_INSERT_TAIL(&loop->async_handles, q);  in uv__async_io()
168 static void uv__async_send(uv_loop_t* loop) {  in uv__async_send()  argument
176   fd = loop->async_wfd;  in uv__async_send()
183     fd = loop->async_io_watcher.fd;  /* eventfd */  in uv__async_send()
202 static int uv__async_start(uv_loop_t* loop) {  in uv__async_start()  argument
206   if (loop->async_io_watcher.fd != -1)  in uv__async_start()
222   uv__io_init(&loop->async_io_watcher, uv__async_io, pipefd[0]);  in uv__async_start()
223   uv__io_start(loop, &loop->async_io_watcher, POLLIN);  in uv__async_start()
224   loop->async_wfd = pipefd[1];  in uv__async_start()
230 int uv__async_fork(uv_loop_t* loop) {  in uv__async_fork()  argument
231   if (loop->async_io_watcher.fd == -1) /* never started */  in uv__async_fork()
234   uv__async_stop(loop);  in uv__async_fork()
236   return uv__async_start(loop);  in uv__async_fork()
240 void uv__async_stop(uv_loop_t* loop) {  in uv__async_stop()  argument
241   if (loop->async_io_watcher.fd == -1)  in uv__async_stop()
244   if (loop->async_wfd != -1) {  in uv__async_stop()
245     if (loop->async_wfd != loop->async_io_watcher.fd)  in uv__async_stop()
246       uv__close(loop->async_wfd);  in uv__async_stop()
247     loop->async_wfd = -1;  in uv__async_stop()
250   uv__io_stop(loop, &loop->async_io_watcher, POLLIN);  in uv__async_stop()
251   uv__close(loop->async_io_watcher.fd);  in uv__async_stop()
252   loop->async_io_watcher.fd = -1;  in uv__async_stop()