void event_cycle_once()
{
bool pstate = mainloop()->running;
mainloop()->running = false;
queue_process_events(eventq(), TIMEOUT);
queue_process_events(drawq(), TIMEOUT);
uv_run(eventloop(), UV_RUN_NOWAIT);
uv_run(eventloop(), UV_RUN_ONCE);
mainloop()->running = pstate;
}
void loop_poll_events(Loop *loop, int ms)
{
if (loop->recursive++) {
abort(); // Should not re-enter uv_run
}
uv_run_mode mode = UV_RUN_ONCE;
if (ms > 0) {
// Use a repeating timeout of ms milliseconds to make sure
// we do not block indefinitely for I/O.
uv_timer_start(&loop->poll_timer, timer_cb, (uint64_t)ms, (uint64_t)ms);
} else if (ms == 0) {
// For ms == 0, we need to do a non-blocking event poll by
// setting the run mode to UV_RUN_NOWAIT.
mode = UV_RUN_NOWAIT;
}
uv_run(&loop->uv, mode);
if (ms > 0) {
uv_timer_stop(&loop->poll_timer);
}
loop->recursive--; // Can re-enter uv_run now
queue_process_events(loop->fast_events);
}
static void prepare_events(uv_prepare_t *handle)
{
log_msg("", "--event--");
if (mainloop()->running)
return;
mainloop()->running = true;
while (1) {
queue_process_events(eventq(), TIMEOUT);
queue_process_events(drawq(), TIMEOUT);
if (!mainloop_busy()) {
uv_prepare_stop(handle);
break;
}
else {
uv_run(eventloop(), UV_RUN_NOWAIT);
}
}
mainloop()->running = false;
}
