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authorIgor Sysoev <igor@sysoev.ru>2003-11-30 20:03:18 +0000
committerIgor Sysoev <igor@sysoev.ru>2003-11-30 20:03:18 +0000
commit865c150cb473fca8ff91d60ddd539ac6dbbe02ee (patch)
tree1ae51b35fbfaa069adf98db8a4c98887bdd3f9a8 /src/http/ngx_http_cache.h
parentc2bba092eb07ea5fcd2e2ee987e3a304f755a3c7 (diff)
downloadnginx-865c150cb473fca8ff91d60ddd539ac6dbbe02ee.tar.gz
nginx-865c150cb473fca8ff91d60ddd539ac6dbbe02ee.zip
nginx-0.0.1-2003-11-30-23:03:18 import
Diffstat (limited to 'src/http/ngx_http_cache.h')
-rw-r--r--src/http/ngx_http_cache.h68
1 files changed, 41 insertions, 27 deletions
diff --git a/src/http/ngx_http_cache.h b/src/http/ngx_http_cache.h
index feaecd48e..b2088a06e 100644
--- a/src/http/ngx_http_cache.h
+++ b/src/http/ngx_http_cache.h
@@ -7,22 +7,37 @@
#include <ngx_http.h>
+/*
+ * The 7 uses before an allocation.
+ * We can use maximum 7 bits, i.e up to the 127 uses.
+ */
+#define NGX_HTTP_CACHE_LAZY_ALLOCATION_BITS 3
+
typedef struct {
- uint32_t crc;
- ngx_str_t key;
- time_t accessed;
+ uint32_t crc;
+ ngx_str_t key;
+ time_t accessed;
+
+ unsigned refs:20; /* 1048576 references */
+
+ unsigned count:NGX_HTTP_CACHE_LAZY_ALLOCATION_BITS;
- unsigned refs:20; /* 1048576 references */
- unsigned count:2; /* lazy allocation: the 4 uses */
- unsigned deleted:1;
+ unsigned valid:1;
+ unsigned deleted:1;
+ unsigned memory:1;
+ unsigned mmap:1;
+ unsigned notify:1;
- ngx_fd_t fd;
- time_t last_modified;
- time_t updated;
+ ngx_fd_t fd;
+#if (NGX_USE_HTTP_FILE_CACHE_UNIQ)
+ ngx_file_uniq_t uniq; /* no needed with kqueue */
+#endif
+ time_t last_modified;
+ time_t updated;
union {
- off_t size;
- ngx_str_t value;
+ off_t size;
+ ngx_str_t value;
} data;
} ngx_http_cache_t;
@@ -69,30 +84,33 @@ typedef struct {
} ngx_http_cache_ctx_t;
-typedef struct {
- ngx_http_cache_hash_t *open_files;
-} ngx_http_cache_conf_t;
-
-
#define NGX_HTTP_CACHE_STALE 1
#define NGX_HTTP_CACHE_AGED 2
#define NGX_HTTP_CACHE_THE_SAME 3
-int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx);
-int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq);
-int ngx_http_cache_update_file(ngx_http_request_t *r,ngx_http_cache_ctx_t *ctx,
- ngx_str_t *temp_file);
-
ngx_http_cache_t *ngx_http_cache_get(ngx_http_cache_hash_t *cache,
+ ngx_http_cleanup_t *cleanup,
ngx_str_t *key, uint32_t *crc);
-ngx_http_cache_t *ngx_http_cache_alloc(ngx_http_cache_hash_t *cache,
+
+ngx_http_cache_t *ngx_http_cache_alloc(ngx_http_cache_hash_t *hash,
+ ngx_http_cache_t *cache,
+ ngx_http_cleanup_t *cleanup,
ngx_str_t *key, uint32_t crc,
- ngx_log_t *log);
+ ngx_str_t *value, ngx_log_t *log);
+void ngx_http_cache_free(ngx_http_cache_t *cache,
+ ngx_str_t *key, ngx_str_t *value, ngx_log_t *log);
void ngx_http_cache_unlock(ngx_http_cache_hash_t *hash,
ngx_http_cache_t *cache, ngx_log_t *log);
+int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx);
+int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq);
+int ngx_http_cache_update_file(ngx_http_request_t *r,ngx_http_cache_ctx_t *ctx,
+ ngx_str_t *temp_file);
+
+int ngx_http_send_cached(ngx_http_request_t *r);
+
int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name,
ngx_dir_t *dir);
@@ -100,8 +118,4 @@ int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name,
char *ngx_http_set_cache_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
-extern ngx_module_t ngx_http_cache_module;
-
-
-
#endif /* _NGX_HTTP_CACHE_H_INCLUDED_ */