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Add --no-round-robin option.

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This commit is contained in:
Simon Kelley
2022-10-18 16:06:48 +01:00
parent 930428fb97
commit fe9a134baf
5 changed files with 22 additions and 4 deletions
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12
src/cache.c
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@@ -233,7 +233,8 @@ static void cache_hash(struct crec *crecp)
immortal entries are at the end of the hash-chain.
This allows reverse searches and garbage collection to be optimised */
struct crec **up = hash_bucket(cache_get_name(crecp));
char *name = cache_get_name(crecp);
struct crec **up = hash_bucket(name);
if (!(crecp->flags & F_REVERSE))
{
@@ -244,6 +245,11 @@ static void cache_hash(struct crec *crecp)
while (*up && !((*up)->flags & F_IMMORTAL))
up = &((*up)->hash_next);
}
/* Preserve order when inserting the same name multiple times. */
while (*up && hostname_isequal(cache_get_name(*up), name))
up = &((*up)->hash_next);
crecp->hash_next = *up;
*up = crecp;
}
@@ -722,7 +728,7 @@ static struct crec *really_insert(char *name, union all_addr *addr, unsigned sho
new->ttd = now + (time_t)ttl;
new->next = new_chain;
new_chain = new;
return new;
}
@@ -900,7 +906,7 @@ int cache_find_non_terminal(char *name, time_t now)
struct crec *cache_find_by_name(struct crec *crecp, char *name, time_t now, unsigned int prot)
{
struct crec *ans;
int no_rr = prot & F_NO_RR;
int no_rr = (prot & F_NO_RR) || option_bool(OPT_NORR);
prot &= ~F_NO_RR;