64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
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#define NGX_HTTP_CACHE_ENTRY_DELETED 0x00000001
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#define NGX_HTTP_CACHE_ENTRY_MMAPED 0x00000002
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/* "/" -> "/index.html" in ngx_http_index_handler */
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#define NGX_HTTP_CACHE_ENTRY_URI 0x00000004
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#define NGX_HTTP_CACHE_FILTER_FLAGS 0xFFFF0000
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typedef struct {
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ngx_fd_t fd;
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off_t size;
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void *data;
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time_t accessed;
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time_t last_modified;
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time_t updated; /* no needed with kqueue */
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int refs;
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int flags;
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} ngx_http_cache_entry_t;
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typedef struct {
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u_int32_t crc;
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ngx_str_t uri;
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ngx_http_cache_t *cache;
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} ngx_http_cache_hash_entry_t;
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typedef struct {
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ngx_http_cache_t *cache;
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u_int32_t crc;
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int n;
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} ngx_http_cache_handle_t;
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int ngx_http_cache_get(ngx_http_cache_hash_t *cache_hash,
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ngx_str_t *uri, ngx_http_cache_handle_t *h)
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{
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int hi;
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ngx_http_cache_hash_entry_t *entry;
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h->crc = ngx_crc32(uri->data, uri->len);
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hi = h->crc % cache_hash->size;
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entry = cache_hash[hi].elts;
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for (i = 0; i < cache_hash[hi].nelts; i++) {
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if (entry[i].crc == crc
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&& entry[i].uri.len == uri->len
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&& ngx_strncmp(entry[i].uri.data, uri->data, uri->len) == 0
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{
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h->cache = entry[i].cache;
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h->cache->refs++;
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h->n = hi;
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return NGX_OK;
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}
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}
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return NGX_ERROR;
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}
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