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 "resolve-util.h"
   8 #include "time-util.h"
   9
  10 typedef struct DnsCache {
  11         Hashmap *by_key;
  12         Prioq *by_expiry;
  13         unsigned n_hit;
  14         unsigned n_miss;
  15 } DnsCache;
  16
  17 #include "resolved-dns-answer.h"
  18 #include "resolved-dns-packet.h"
  19 #include "resolved-dns-question.h"
  20 #include "resolved-dns-rr.h"
  21
  22 void dns_cache_flush(DnsCache *c);
  23 void dns_cache_prune(DnsCache *c);
  24
  25 int dns_cache_put(DnsCache *c, DnsCacheMode cache_mode, 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);
  26 int dns_cache_lookup(DnsCache *c, DnsResourceKey *key, bool clamp_ttl, int *rcode, DnsAnswer **answer, bool *authenticated);
  27
  28 int dns_cache_check_conflicts(DnsCache *cache, DnsResourceRecord *rr, int owner_family, const union in_addr_union *owner_address);
  29
  30 void dns_cache_dump(DnsCache *cache, FILE *f);
  31 bool dns_cache_is_empty(DnsCache *cache);
  32
  33 unsigned dns_cache_size(DnsCache *cache);
  34
  35 int dns_cache_export_shared_to_packet(DnsCache *cache, DnsPacket *p);