diff options
| author |   hanlin <hanlin_wang@163.com> | 2019-12-26 11:44:28 +0800 |
|---|---|---|
| committer |   Dave Wallace <dwallacelf@gmail.com> | 2020-08-12 14:37:52 +0000 |
| commit | 6104daa550b702b59ac6764efba593261d68c743 (patch) | |
| tree | cdc0cdb524898410aefb64b1447396bd161efa24 /src | |
| parent | c69b18f818410fa297b25ed961bd05f139643f4b (diff) | |
vcl: EPOLLOUT should be generated when epoll_ctl called with EPOLLOUT
event
Type: fix
When we call epoll_ctl to add or mod fd with EPOLLOUT event, mostly to
check if we can write. So we expect a EPOLLOUT event should be generated
immediately unless tx queue is full.
Signed-off-by: hanlin <hanlin_wang@163.com>
Change-Id: Ie99986a44dbb07b6ff2fba6512171056f79e77bd
(cherry picked from commit 475c9d7bcd0f2ceca77022eaef67ad9a84365609)
Diffstat (limited to 'src')
| -rw-r--r-- | src/vcl/vppcom.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 52639c4e2b0..6be438c89eb 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -2475,6 +2475,15 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */ + if ((event->events & EPOLLOUT) && + (vcl_session_write_ready (session) > 0)) + { + session_event_t e = { 0 }; + e.event_type = SESSION_IO_EVT_TX; + e.session_index = session->session_index; + vec_add1 (wrk->unhandled_evts_vector, e); + } VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!", vep_handle, session_handle, event->events, event->data.u64); vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64); @@ -2500,6 +2509,17 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, rv = VPPCOM_EINVAL; goto done; } + + /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */ + if ((event->events & EPOLLOUT) && + !(session->vep.ev.events & EPOLLOUT) && + (vcl_session_write_ready (session) > 0)) + { + session_event_t e = { 0 }; + e.event_type = SESSION_IO_EVT_TX; + e.session_index = session->session_index; + vec_add1 (wrk->unhandled_evts_vector, e); + } session->vep.et_mask = VEP_DEFAULT_ET_MASK; session->vep.ev = *event; VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!", |