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Optimize prefetch hitime

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This commit is contained in:
Nick Peng
2019-08-12 23:08:39 +08:00
parent 4e11c13ec0
commit f801023569
3 changed files with 33 additions and 4 deletions
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5
src/dns_server.c
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@@ -2602,12 +2602,13 @@ static void _dns_server_second_ping_check(struct dns_request *request)
static void _dns_server_prefetch_domain(struct dns_cache *dns_cache)
{
/* If there are still hits, continue pre-fetching */
if (atomic_dec_return(&dns_cache->hitnum) <= 0) {
int hitnum = dns_cache_hitnum_dec_get(dns_cache);
if (hitnum <= 0) {
return;
}
/* start prefetch domain */
tlog(TLOG_DEBUG, "prefetch by cache %s, qtype %d, ttl %d, hitnum %d", dns_cache->domain, dns_cache->qtype, dns_cache->ttl, atomic_read(&dns_cache->hitnum));
tlog(TLOG_DEBUG, "prefetch by cache %s, qtype %d, ttl %d, hitnum %d", dns_cache->domain, dns_cache->qtype, dns_cache->ttl, hitnum);
if (_dns_server_prefetch_request(dns_cache->domain, dns_cache->qtype) != 0) {
tlog(TLOG_ERROR, "prefetch domain %s, qtype %d, failed.", dns_cache->domain, dns_cache->qtype);
}