int timeout_ms = 0, max_timeout_ms = 10;
f64 vector_rate = vlib_last_vectors_per_main_loop (vm);
+ /*
+ * If we've been asked for a fixed-sleep between main loop polls,
+ * do so right away.
+ */
+ if (PREDICT_FALSE (is_main && um->poll_sleep_usec))
+ {
+ struct timespec ts, tsrem;
+ timeout = 0;
+ timeout_ms = 0;
+ node->input_main_loops_per_call = 0;
+ ts.tv_sec = 0;
+ ts.tv_nsec = 1000 * um->poll_sleep_usec;
+
+ while (nanosleep (&ts, &tsrem) < 0)
+ {
+ ts = tsrem;
+ }
+ }
/* If we're not working very hard, decide how long to sleep */
- if (is_main && vector_rate < 2 && vm->api_queue_nonempty == 0
- && nm->input_node_counts_by_state[VLIB_NODE_STATE_POLLING] == 0)
+ else if (is_main && vector_rate < 2 && vm->api_queue_nonempty == 0
+ && nm->input_node_counts_by_state[VLIB_NODE_STATE_POLLING] == 0)
{
ticks_until_expiration = TW (tw_timer_first_expires_in_ticks)
((TWT (tw_timer_wheel) *) nm->timing_wheel);
for (e = em->epoll_events; e < em->epoll_events + n_fds_ready; e++)
{
u32 i = e->data.u32;
- clib_file_t *f = pool_elt_at_index (fm->file_pool, i);
+ clib_file_t *f = fm->file_pool + i;
clib_error_t *errors[4];
int n_errors = 0;
- if (PREDICT_TRUE (!(e->events & EPOLLERR)))
+ if (PREDICT_FALSE (pool_is_free (fm->file_pool, f)))
+ {
+ /*
+ * Under rare scenerop, epoll may still post us events for the
+ * deleted file descriptor. We just deal with it and throw away the
+ * events for the corresponding file descriptor.
+ */
+ if (e->events & EPOLLIN)
+ {
+ errors[n_errors] =
+ clib_error_return (0, "epoll event EPOLLIN dropped due "
+ "to free index %u", i);
+ n_errors++;
+ }
+ if (e->events & EPOLLOUT)
+ {
+ errors[n_errors] =
+ clib_error_return (0, "epoll event EPOLLOUT dropped due "
+ "to free index %u", i);
+ n_errors++;
+ }
+ if (e->events & EPOLLERR)
+ {
+ errors[n_errors] =
+ clib_error_return (0, "epoll event EPOLLERR dropped due "
+ "to free index %u", i);
+ n_errors++;
+ }
+ }
+ else if (PREDICT_TRUE (!(e->events & EPOLLERR)))
{
if (e->events & EPOLLIN)
{