From 72f7782dc57305ac86094dd16d7eccf8e0b74559 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Tue, 22 Jan 2019 19:05:52 -0800 Subject: vcl: generate epoll events only if requested Change-Id: I6e96607f09c18755eead2c7099e1f546bdae7b88 Signed-off-by: Florin Coras --- src/vcl/ldp.c | 12 ++++-------- src/vcl/vppcom.c | 21 ++++++++++++--------- 2 files changed, 16 insertions(+), 17 deletions(-) (limited to 'src/vcl') diff --git a/src/vcl/ldp.c b/src/vcl/ldp.c index 088c118b6ed..36cff2a67f1 100644 --- a/src/vcl/ldp.c +++ b/src/vcl/ldp.c @@ -2142,7 +2142,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents, int timeout, const sigset_t * sigmask) { ldp_worker_ctx_t *ldpw = ldp_worker_get_current (); - double time_to_wait = (double) 0, time_out, now = 0; + double time_to_wait = (double) 0, max_time; int libc_epfd, rv = 0; vls_handle_t ep_vlsh; @@ -2167,7 +2167,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents, } time_to_wait = ((timeout >= 0) ? (double) timeout / 1000 : 0); - time_out = clib_time_now (&ldpw->clib_time) + time_to_wait; + max_time = clib_time_now (&ldpw->clib_time) + time_to_wait; libc_epfd = vls_attr (ep_vlsh, VPPCOM_ATTR_GET_LIBC_EPFD, 0, 0); if (PREDICT_FALSE (libc_epfd < 0)) @@ -2179,8 +2179,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents, LDBG (2, "epfd %d: vep_idx %d, libc_epfd %d, events %p, maxevents %d, " "timeout %d, sigmask %p: time_to_wait %.02f", epfd, ep_vlsh, - libc_epfd, events, maxevents, timeout, sigmask, time_to_wait, - time_out); + libc_epfd, events, maxevents, timeout, sigmask, time_to_wait); do { if (!ldpw->epoll_wait_vcl) @@ -2207,11 +2206,8 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents, if (rv != 0) goto done; } - - if (timeout != -1) - now = clib_time_now (&ldpw->clib_time); } - while (now < time_out); + while ((timeout == -1) || (clib_time_now (&ldpw->clib_time) < max_time)); done: return rv; diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index f181f35ee27..c91d0f4b8b6 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -2601,31 +2601,34 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, if (!(session = vcl_session_get (wrk, sid))) break; session_events = session->vep.ev.events; - if (EPOLLOUT & session_events) - { - add_event = 1; - events[*num_ev].events |= EPOLLOUT; - session_evt_data = session->vep.ev.data.u64; - } + if (!(EPOLLOUT & session_events)) + break; + add_event = 1; + events[*num_ev].events |= EPOLLOUT; + session_evt_data = session->vep.ev.data.u64; break; case SESSION_CTRL_EVT_DISCONNECTED: disconnected_msg = (session_disconnected_msg_t *) e->data; session = vcl_session_disconnected_handler (wrk, disconnected_msg); if (!session) break; + session_events = session->vep.ev.events; + if (!((EPOLLHUP | EPOLLRDHUP) & session_events)) + break; add_event = 1; events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP; session_evt_data = session->vep.ev.data.u64; - session_events = session->vep.ev.events; break; case SESSION_CTRL_EVT_RESET: sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data); if (!(session = vcl_session_get (wrk, sid))) break; + session_events = session->vep.ev.events; + if (!((EPOLLHUP | EPOLLRDHUP) & session_events)) + break; add_event = 1; events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP; session_evt_data = session->vep.ev.data.u64; - session_events = session->vep.ev.events; break; case SESSION_CTRL_EVT_REQ_WORKER_UPDATE: vcl_session_req_worker_update_handler (wrk, e->data); @@ -2710,7 +2713,7 @@ vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events, double total_wait = 0, wait_slice; int rv; - wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time; + wait_for_time = (wait_for_time == -1) ? (double) 1e6 : wait_for_time; wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time; do -- cgit 1.2.3-korg