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| author | Lennart Poettering <lennart@poettering.net> | 2016-01-15 21:38:27 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2016-01-17 20:47:46 +0100 |
| commit | f57e3cd5fa709ec0f52531eccba909ac0851927c (patch) | |
| tree | b68b42dbf9af7dd7c82c75859c3ac06f17fdeda4 /src/resolve/resolved-dns-packet.c | |
| parent | 2e1bab34bdb1a5e849060afa8361b865ce39f87f (diff) | |
resolved: try to reduce number or DnsResourceKeys we keep around by merging them
Quite often we read the same RR key multiple times from the same message. Try to replace them by a single object when
we notice this. Do so again when we add things to the cache.
This should reduce memory consumption a tiny bit.
Diffstat (limited to 'src/resolve/resolved-dns-packet.c')
| -rw-r--r-- | src/resolve/resolved-dns-packet.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c index 57cfc1ab9b..0acbcfe261 100644 --- a/src/resolve/resolved-dns-packet.c +++ b/src/resolve/resolved-dns-packet.c @@ -2106,6 +2106,7 @@ int dns_packet_extract(DnsPacket *p) { n = DNS_PACKET_RRCOUNT(p); if (n > 0) { + DnsResourceRecord *previous = NULL; bool bad_opt = false; answer = dns_answer_new(n); @@ -2122,6 +2123,10 @@ int dns_packet_extract(DnsPacket *p) { if (r < 0) goto finish; + /* Try to reduce memory usage a bit */ + if (previous) + dns_resource_key_reduce(&rr->key, &previous->key); + if (rr->key->type == DNS_TYPE_OPT) { bool has_rfc6975; |