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authorMichal Schmidt <mschmidt@redhat.com>2014-08-13 01:00:18 +0200
committerMichal Schmidt <mschmidt@redhat.com>2014-09-15 16:08:50 +0200
commitd5099efc47d4e6ac60816b5381a5f607ab03f06e (patch)
tree661308aae8a0885e90da25874e7df3e795532356 /src/resolve/resolved-dns-rr.c
parentf44541bc934c6e2b02155559e9eeb17a13a09558 (diff)
hashmap: introduce hash_ops to make struct Hashmap smaller
It is redundant to store 'hash' and 'compare' function pointers in struct Hashmap separately. The functions always comprise a pair. Store a single pointer to struct hash_ops instead. systemd keeps hundreds of hashmaps, so this saves a little bit of memory.
Diffstat (limited to 'src/resolve/resolved-dns-rr.c')
-rw-r--r--src/resolve/resolved-dns-rr.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/resolve/resolved-dns-rr.c b/src/resolve/resolved-dns-rr.c
index c5f7cb931e..fd5ecf413d 100644
--- a/src/resolve/resolved-dns-rr.c
+++ b/src/resolve/resolved-dns-rr.c
@@ -133,7 +133,7 @@ int dns_resource_key_match_cname(const DnsResourceKey *key, const DnsResourceRec
return dns_name_equal(DNS_RESOURCE_KEY_NAME(rr->key), DNS_RESOURCE_KEY_NAME(key));
}
-unsigned long dns_resource_key_hash_func(const void *i, const uint8_t hash_key[HASH_KEY_SIZE]) {
+static unsigned long dns_resource_key_hash_func(const void *i, const uint8_t hash_key[HASH_KEY_SIZE]) {
const DnsResourceKey *k = i;
unsigned long ul;
@@ -144,7 +144,7 @@ unsigned long dns_resource_key_hash_func(const void *i, const uint8_t hash_key[H
return ul;
}
-int dns_resource_key_compare_func(const void *a, const void *b) {
+static int dns_resource_key_compare_func(const void *a, const void *b) {
const DnsResourceKey *x = a, *y = b;
int ret;
@@ -165,6 +165,11 @@ int dns_resource_key_compare_func(const void *a, const void *b) {
return 0;
}
+const struct hash_ops dns_resource_key_hash_ops = {
+ .hash = dns_resource_key_hash_func,
+ .compare = dns_resource_key_compare_func
+};
+
int dns_resource_key_to_string(const DnsResourceKey *key, char **ret) {
char cbuf[DECIMAL_STR_MAX(uint16_t)], tbuf[DECIMAL_STR_MAX(uint16_t)];
const char *c, *t;