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Search dynamic table first for optimization

This commit is contained in:
Tatsuhiro Tsujikawa 2016-08-08 00:27:16 +09:00
parent 16c46114dc
commit 60cae325bc
1 changed files with 14 additions and 19 deletions
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33
lib/nghttp2_hd.c
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@ -532,7 +532,7 @@ static void hd_map_insert(nghttp2_hd_map *map, nghttp2_hd_entry *ent) {
static nghttp2_hd_entry *hd_map_find(nghttp2_hd_map *map, int *exact_match,
const nghttp2_nv *nv, int32_t token,
uint32_t hash) {
uint32_t hash, int name_only) {
nghttp2_hd_entry *p;
nghttp2_hd_entry *res = NULL;
@ -545,6 +545,9 @@ static nghttp2_hd_entry *hd_map_find(nghttp2_hd_map *map, int *exact_match,
}
if (!res) {
res = p;
if (name_only) {
break;
}
}
if (value_eq(&p->nv, nv)) {
res = p;
@ -1148,16 +1151,16 @@ static int add_hd_table_incremental(nghttp2_hd_context *context,
typedef struct {
ssize_t index;
/* Nonzero if both name and value are matched. */
uint8_t name_value_match;
int name_value_match;
} search_result;
static search_result search_static_table(const nghttp2_nv *nv, int32_t token,
int indexing_mode) {
int name_only) {
search_result res = {token, 0};
int i;
nghttp2_hd_static_entry *ent;
if (indexing_mode == NGHTTP2_HD_NEVER_INDEXING) {
if (name_only) {
return res;
}
@ -1182,30 +1185,22 @@ static search_result search_hd_table(nghttp2_hd_context *context,
search_result res = {-1, 0};
nghttp2_hd_entry *ent;
int exact_match;
if (token >= 0 && token <= NGHTTP2_TOKEN_WWW_AUTHENTICATE) {
res = search_static_table(nv, token, indexing_mode);
if (res.name_value_match) {
return res;
}
}
int name_only = indexing_mode == NGHTTP2_HD_NEVER_INDEXING;
exact_match = 0;
ent = hd_map_find(map, &exact_match, nv, token, hash);
if (ent == NULL) {
return res;
ent = hd_map_find(map, &exact_match, nv, token, hash, name_only);
if (!exact_match && token >= 0 && token <= NGHTTP2_TOKEN_WWW_AUTHENTICATE) {
return search_static_table(nv, token, name_only);
}
if (res.index != -1 && !exact_match) {
if (ent == NULL) {
return res;
}
res.index =
(ssize_t)(context->next_seq - 1 - ent->seq + NGHTTP2_STATIC_TABLE_LENGTH);
if (exact_match) {
res.name_value_match = 1;
}
res.name_value_match = exact_match;
return res;
}