Mercurial > hg > nginx
view src/http/ngx_http_cache.c @ 97:70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 29 May 2003 13:02:09 +0000 |
parents | |
children | a059e1aa65d4 |
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#define NGX_HTTP_CACHE_ENTRY_DELETED 0x00000001 #define NGX_HTTP_CACHE_ENTRY_MMAPED 0x00000002 /* "/" -> "/index.html" in ngx_http_index_handler */ #define NGX_HTTP_CACHE_ENTRY_URI 0x00000004 #define NGX_HTTP_CACHE_FILTER_FLAGS 0xFFFF0000 typedef struct { ngx_fd_t fd; off_t size; void *data; time_t accessed; time_t last_modified; time_t updated; /* no needed with kqueue */ int refs; int flags; } ngx_http_cache_entry_t; typedef struct { u_int32_t crc; ngx_str_t uri; ngx_http_cache_t *cache; } ngx_http_cache_hash_entry_t; typedef struct { ngx_http_cache_t *cache; u_int32_t crc; int n; } ngx_http_cache_handle_t; int ngx_http_cache_get(ngx_http_cache_hash_t *cache_hash, ngx_str_t *uri, ngx_http_cache_handle_t *h) { int hi; ngx_http_cache_hash_entry_t *entry; h->crc = ngx_crc32(uri->data, uri->len); hi = h->crc % cache_hash->size; entry = cache_hash[hi].elts; for (i = 0; i < cache_hash[hi].nelts; i++) { if (entry[i].crc == crc && entry[i].uri.len == uri->len && ngx_strncmp(entry[i].uri.data, uri->data, uri->len) == 0 { h->cache = entry[i].cache; h->cache->refs++; h->n = hi; return NGX_OK; } } return NGX_ERROR; }