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Add --use-stale-cache option.

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This commit is contained in:
Simon Kelley
2022-08-29 21:44:05 +01:00
parent d21438a7df
commit d334e7c34f
8 changed files with 238 additions and 76 deletions
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6
src/cache.c
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@@ -374,6 +374,10 @@ static int is_outdated_cname_pointer(struct crec *crecp)
static int is_expired(time_t now, struct crec *crecp)
{
/* Don't dump expired entries if we're using them, cache becomes strictly LRU in that case. */
if (option_bool(OPT_STALE_CACHE))
return 0;
if (crecp->flags & F_IMMORTAL)
return 0;
@@ -2079,6 +2083,8 @@ void log_query(unsigned int flags, char *name, union all_addr *addr, char *arg,
name = arg;
verb = daemon->addrbuff;
}
else if (flags & F_STALE)
source = "cached-stale";
else
source = "cached";