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serve-expired: new feature, support cache serve-expired feature

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This commit is contained in:
Nick Peng
2020-02-15 15:24:03 +08:00
parent 8f40eba083
commit 8990446411
14 changed files with 167 additions and 46 deletions
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4
src/dns_conf.c
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@@ -48,6 +48,8 @@ int dns_conf_tcp_idle_time = 120;
/* cache */
int dns_conf_cachesize = DEFAULT_DNS_CACHE_SIZE;
int dns_conf_prefetch = 0;
int dns_conf_serve_expired = 0;
int dns_conf_serve_expired_ttl = 0;
/* upstream servers */
struct dns_servers dns_conf_servers[DNS_MAX_SERVERS];
@@ -1340,6 +1342,8 @@ static struct config_item _config_item[] = {
CONF_INT("tcp-idle-time", &dns_conf_tcp_idle_time, 0, 3600),
CONF_INT("cache-size", &dns_conf_cachesize, 0, CONF_INT_MAX),
CONF_YESNO("prefetch-domain", &dns_conf_prefetch),
CONF_YESNO("serve-expired", &dns_conf_serve_expired),
CONF_INT("serve-expired-ttl", &dns_conf_serve_expired_ttl, 0, CONF_INT_MAX),
CONF_YESNO("dualstack-ip-selection", &dns_conf_dualstack_ip_selection),
CONF_INT("dualstack-ip-selection-threshold", &dns_conf_dualstack_ip_selection_threshold, 0, 1000),
CONF_CUSTOM("log-level", _config_log_level, NULL),