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Fix an issue with forking and signal socketpairs in select/poll backends

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Nicholas Marriott identifies an issue where a signal socketpair
doesn't get recreated if the event backend doesn't set event_reinit.
This commit is contained in:
Nick Mathewson 2010-08-26 15:09:58 -04:00
parent 95b71d0cd6
commit f0ff7659f3
1 changed files with 6 additions and 1 deletions
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7
event.c
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@ -279,9 +279,14 @@ event_reinit(struct event_base *base)
int res = 0; int res = 0;
struct event *ev; struct event *ev;
#if 0
/* Right now, reinit always takes effect, since even if the
backend doesn't require it, the signal socketpair code does.
*/
/* check if this event mechanism requires reinit */ /* check if this event mechanism requires reinit */
if (!evsel->need_reinit) if (!evsel->need_reinit)
return (0); return (0);
#endif
/* prevent internal delete */ /* prevent internal delete */
if (base->sig.ev_signal_added) { if (base->sig.ev_signal_added) {
@ -294,7 +299,7 @@ event_reinit(struct event_base *base)
EVLIST_ACTIVE); EVLIST_ACTIVE);
base->sig.ev_signal_added = 0; base->sig.ev_signal_added = 0;
} }
if (base->evsel->dealloc != NULL) if (base->evsel->dealloc != NULL)
base->evsel->dealloc(base, base->evbase); base->evsel->dealloc(base, base->evbase);
evbase = base->evbase = evsel->init(base); evbase = base->evbase = evsel->init(base);