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comparison src/http/ngx_http_cache.c @ 277:e91499541410

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nginx-0.0.2-2004-03-03-19:14:15 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 03 Mar 2004 16:14:15 +0000
parents c9da5900c79e
children da8c5707af39
comparison
equal deleted inserted replaced
276:a2d1ccc96111 277:e91499541410
38 38
39 *crc = ngx_crc(key->data, key->len); 39 *crc = ngx_crc(key->data, key->len);
40 40
41 c = hash->elts + *crc % hash->hash * hash->nelts; 41 c = hash->elts + *crc % hash->hash * hash->nelts;
42 42
43 ngx_mutex_lock(&hash->mutex); 43 if (ngx_mutex_lock(&hash->mutex) == NGX_ERROR) {
44 return (void *) NGX_ERROR;
45 }
44 46
45 for (i = 0; i < hash->nelts; i++) { 47 for (i = 0; i < hash->nelts; i++) {
46 if (c[i].crc == *crc 48 if (c[i].crc == *crc
47 && c[i].key.len == key->len 49 && c[i].key.len == key->len
48 && ngx_rstrncmp(c[i].key.data, key->data, key->len) == 0) 50 && ngx_rstrncmp(c[i].key.data, key->data, key->len) == 0)
93 95
94 old = ngx_cached_time + 1; 96 old = ngx_cached_time + 1;
95 97
96 c = hash->elts + crc % hash->hash * hash->nelts; 98 c = hash->elts + crc % hash->hash * hash->nelts;
97 99
98 ngx_mutex_lock(&hash->mutex); 100 if (ngx_mutex_lock(&hash->mutex) == NGX_ERROR) {
101 return (void *) NGX_ERROR;
102 }
99 103
100 if (cache == NULL) { 104 if (cache == NULL) {
101 105
102 /* allocate a new entry */ 106 /* allocate a new entry */
103 107
225 } 229 }
226 230
227 231
228 void ngx_http_cache_lock(ngx_http_cache_hash_t *hash, ngx_http_cache_t *cache) 232 void ngx_http_cache_lock(ngx_http_cache_hash_t *hash, ngx_http_cache_t *cache)
229 { 233 {
230 ngx_mutex_lock(&hash->mutex); 234 if (ngx_mutex_lock(&hash->mutex) == NGX_ERROR) {
235 return;
236 }
231 } 237 }
232 238
233 239
234 void ngx_http_cache_unlock(ngx_http_cache_hash_t *hash, 240 void ngx_http_cache_unlock(ngx_http_cache_hash_t *hash,
235 ngx_http_cache_t *cache, ngx_log_t *log) 241 ngx_http_cache_t *cache, ngx_log_t *log)
236 { 242 {
237 ngx_mutex_lock(&hash->mutex); 243 if (ngx_mutex_lock(&hash->mutex) == NGX_ERROR) {
244 return;
245 }
238 246
239 cache->refs--; 247 cache->refs--;
240 248
241 if (cache->refs == 0 && cache->deleted) { 249 if (cache->refs == 0 && cache->deleted) {
242 ngx_http_cache_free(cache, NULL, NULL, log); 250 ngx_http_cache_free(cache, NULL, NULL, log);