src/resolve/resolved-dns-cache.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "hashmap.h"
   5 #include "list.h"
   6 #include "prioq.h"
   7 #include "time-util.h"
   8
   9 typedef struct DnsCache {
  10         Hashmap *by_key;
  11         Prioq *by_expiry;
  12         unsigned n_hit;
  13         unsigned n_miss;
  14 } DnsCache;
  15
  16 #include "resolved-dns-answer.h"
  17 #include "resolved-dns-packet.h"
  18 #include "resolved-dns-question.h"
  19 #include "resolved-dns-rr.h"
  20
  21 void dns_cache_flush(DnsCache *c);
  22 void dns_cache_prune(DnsCache *c);
  23
  24 int dns_cache_put(DnsCache *c, DnsResourceKey *key, int rcode, DnsAnswer *answer, bool authenticated, uint32_t nsec_ttl, usec_t timestamp, int owner_family, const union in_addr_union *owner_address);
  25 int dns_cache_lookup(DnsCache *c, DnsResourceKey *key, bool clamp_ttl, int *rcode, DnsAnswer **answer, bool *authenticated);
  26
  27 int dns_cache_check_conflicts(DnsCache *cache, DnsResourceRecord *rr, int owner_family, const union in_addr_union *owner_address);
  28
  29 void dns_cache_dump(DnsCache *cache, FILE *f);
  30 bool dns_cache_is_empty(DnsCache *cache);
  31
  32 unsigned dns_cache_size(DnsCache *cache);
  33
  34 int dns_cache_export_shared_to_packet(DnsCache *cache, DnsPacket *p);