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optimize prefetch feature

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This commit is contained in:
Nick Peng
2019-01-18 00:19:17 +08:00
parent dd4372a961
commit bb1c4d2bfa
3 changed files with 20 additions and 1 deletions
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3
src/dns_cache.h
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@@ -8,6 +8,8 @@
#include "list.h"
#include <time.h>
#define DNS_CACHE_TTL_MIN 30
struct dns_cache {
struct hlist_node node;
struct list_head list;
@@ -17,6 +19,7 @@ struct dns_cache {
char cname[DNS_MAX_CNAME_LEN];
unsigned int cname_ttl;
unsigned int ttl;
int hitnum;
time_t insert_time;
dns_type_t qtype;
union {