diff options
Diffstat (limited to 'src/vcl/vppcom.c')
| -rw-r--r-- | src/vcl/vppcom.c | 46 |
1 files changed, 35 insertions, 11 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 412b6a4b995..862ad75ebb6 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -3009,25 +3009,49 @@ static int vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events, int maxevents, u32 n_evts, double wait_for_time) { - vcl_mq_evt_conn_t *mqc; + double wait = 0, start = 0, now; int __clib_unused n_read; + vcl_mq_evt_conn_t *mqc; int n_mq_evts, i; u64 buf; vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns)); -again: - n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events, - vec_len (wrk->mq_events), wait_for_time); - for (i = 0; i < n_mq_evts; i++) + if (!n_evts) { - mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32); - n_read = read (mqc->mq_fd, &buf, sizeof (buf)); - vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts); + wait = wait_for_time; + start = clib_time_now (&wrk->clib_time); + } + + do + { + n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events, + vec_len (wrk->mq_events), wait); + if (n_mq_evts < 0) + { + VDBG (0, "epoll_wait error %u", errno); + return n_evts; + } + + for (i = 0; i < n_mq_evts; i++) + { + mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32); + n_read = read (mqc->mq_fd, &buf, sizeof (buf)); + vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, + &n_evts); + } + + if (n_evts) + return n_evts; + if (wait == -1) + continue; + + now = clib_time_now (&wrk->clib_time); + wait -= (now - start) * 1e3; + start = now; } - if (!n_evts && n_mq_evts > 0) - goto again; + while (wait > 0); - return (int) n_evts; + return 0; } int |