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Remove expired rdataset headers from the heap

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It was discovered that an expired header could sit on top of the heap
a little longer than desireable.  Remove expired headers (headers with
rdh_ttl set to 0) from the heap completely, so they don't block the next
TTL-based cleaning.

(cherry picked from commit a9383e4b95)
This commit is contained in:
Ondřej Surý 2024-02-20 08:50:58 +01:00
parent 5709230a3e
commit abe080d16e
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1 changed files with 4 additions and 0 deletions
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4
lib/dns/rbtdb.c
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@ -972,6 +972,10 @@ set_ttl(dns_rbtdb_t *rbtdb, rdatasetheader_t *header, dns_ttl_t newttl) {
} else {
isc_heap_decreased(heap, header->heap_index);
}
if (newttl == 0) {
isc_heap_delete(heap, header->heap_index);
}
}
static bool