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Merge pull request #15282 from donaldsharp/poll_info

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lib: Warn operator when fd limit is set too large
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Donatas Abraitis 2024-02-02 13:09:49 +02:00 committed by GitHub
commit 4ec8522ed4
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1 changed files with 5 additions and 0 deletions
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5
lib/event.c
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@ -543,6 +543,7 @@ static void initializer(void)
pthread_key_create(&thread_current, NULL); pthread_key_create(&thread_current, NULL);
} }
#define STUPIDLY_LARGE_FD_SIZE 100000
struct event_loop *event_master_create(const char *name) struct event_loop *event_master_create(const char *name)
{ {
struct event_loop *rv; struct event_loop *rv;
@ -569,6 +570,10 @@ struct event_loop *event_master_create(const char *name)
rv->fd_limit = (int)limit.rlim_cur; rv->fd_limit = (int)limit.rlim_cur;
} }
if (rv->fd_limit > STUPIDLY_LARGE_FD_SIZE)
zlog_warn("FD Limit set: %u is stupidly large. Is this what you intended? Consider using --limit-fds",
rv->fd_limit);
rv->read = XCALLOC(MTYPE_EVENT_POLL, rv->read = XCALLOC(MTYPE_EVENT_POLL,
sizeof(struct event *) * rv->fd_limit); sizeof(struct event *) * rv->fd_limit);