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bug fix for issues #293 evdns_base_load_hosts doesn't remove outdated adresses

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As mentioned at https://sourceforge.net/p/levent/bugs/293/
 created a small function "evdns_base_flush_outdated_host_addresses" which removes all the previous requests of hosts , if user wants to clean up the list of hosts can call and use this function. 
Requires function declaration to be added in include/event2/dns.h
 Adding it in another patch for the same bug.
This commit is contained in:
Kuldeep Gupta 2013-12-06 16:53:16 +05:30
parent c11e7d9191
commit 954d2f94c0
1 changed files with 13 additions and 0 deletions
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13
evdns.c
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@ -4044,6 +4044,19 @@ evdns_base_free(struct evdns_base *base, int fail_requests)
evdns_base_free_and_unlock(base, fail_requests);
}
void
evdns_base_flush_outdated_host_addresses(struct evdns_base *base)
{
EVDNS_LOCK(base);
struct hosts_entry *victim;
while ((victim = TAILQ_FIRST(&base->hostsdb))) {
TAILQ_REMOVE(&base->hostsdb, victim, next);
mm_free(victim);
}
EVDNS_UNLOCK(base);
EVTHREAD_FREE_LOCK(base->lock, EVTHREAD_LOCKTYPE_RECURSIVE);
}
void
evdns_shutdown(int fail_requests)
{