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async POLLOUT: pollfd change during end of POLLOUT handling change to explicit event reenable

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On ESP32 where the timer is on a different thread, otherwise
threw occasional back-to-back writes.
This commit is contained in:
Andy Green 2018-02-20 12:07:10 +08:00
parent faef0b047f
commit 714ba5c9df
1 changed files with 11 additions and 4 deletions
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15
lib/service.c
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@ -353,10 +353,17 @@ user_service:
vwsi->handling_pollout = 0; vwsi->handling_pollout = 0;
/* cannot get leave_pollout_active set after the above */ /* cannot get leave_pollout_active set after the above */
if (!eff && wsi->leave_pollout_active) if (!eff && wsi->leave_pollout_active) {
/* got set inbetween sampling eff and clearing /*
* handling_pollout, force POLLOUT on */ * got set inbetween sampling eff and clearing
lws_calllback_as_writeable(wsi); * handling_pollout, force POLLOUT on
*/
lwsl_debug("leave_pollout_active\n");
if (lws_change_pollfd(wsi, 0, LWS_POLLOUT)) {
lwsl_info("failed at set pollfd\n");
goto bail_die;
}
}
vwsi->leave_pollout_active = 0; vwsi->leave_pollout_active = 0;
} }