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comparison src/http/ngx_http_cache.h @ 197:0b81c7a0b133

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nginx-0.0.1-2003-11-27-10:45:22 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 27 Nov 2003 07:45:22 +0000
parents 8dee38ea9117
children a65b630b3a66
comparison
equal deleted inserted replaced
196:11fbd0fc041d 197:0b81c7a0b133
3 3
4 4
5 #include <ngx_config.h> 5 #include <ngx_config.h>
6 #include <ngx_core.h> 6 #include <ngx_core.h>
7 #include <ngx_http.h> 7 #include <ngx_http.h>
8
9
10 typedef struct {
11 uint32_t crc;
12 ngx_str_t key;
13 time_t accessed;
14
15 unsigned refs:20; /* 1048576 references */
16 unsigned count:2; /* lazy allocation: the 4 uses */
17 unsigned deleted:1;
18
19 ngx_fd_t fd;
20 time_t last_modified;
21 time_t updated;
22
23 union {
24 off_t size;
25 ngx_str_t value;
26 } data;
27 } ngx_http_cache_t;
8 28
9 29
10 typedef struct { 30 typedef struct {
11 time_t expires; 31 time_t expires;
12 time_t last_modified; 32 time_t last_modified;
15 size_t key_len; 35 size_t key_len;
16 char key[1]; 36 char key[1];
17 } ngx_http_cache_header_t; 37 } ngx_http_cache_header_t;
18 38
19 39
20 typedef struct { 40 #define NGX_HTTP_CACHE_HASH 7
21 uint32_t crc;
22 ngx_str_t key;
23 ngx_fd_t fd;
24 off_t size;
25 void *data; /* mmap, memory */
26 time_t accessed;
27 time_t last_modified;
28 time_t updated; /* no needed with kqueue */
29 int refs;
30 int flags;
31 } ngx_http_cache_entry_t;
32
33 #define NGX_HTTP_CACHE_HASH 1021
34 #define NGX_HTTP_CACHE_NELTS 4 41 #define NGX_HTTP_CACHE_NELTS 4
35 42
36 typedef struct { 43 typedef struct {
37 ngx_http_cache_entry_t **cache; 44 ngx_http_cache_t *elts;
38 size_t hash; 45 size_t hash;
39 size_t nelts; 46 size_t nelts;
40 time_t life_time; 47 time_t life_time;
41 time_t check_time; 48 time_t check_time;
42 ngx_pool_t *pool; 49 ngx_pool_t *pool;
43 } ngx_http_cache_hash_t; 50 } ngx_http_cache_hash_t;
44 51
45 52
46 typedef struct { 53 typedef struct {
47 ngx_http_cache_hash_t *hash; 54 ngx_http_cache_hash_t *hash;
48 } ngx_http_cache_conf_t; 55 ngx_http_cache_t *cache;
49
50
51 typedef struct {
52 ngx_http_cache_hash_t *hash;
53 ngx_http_cache_entry_t *cache;
54 ngx_file_t file; 56 ngx_file_t file;
55 ngx_str_t key; 57 ngx_str_t key;
56 uint32_t crc; 58 uint32_t crc;
57 u_char md5[16]; 59 u_char md5[16];
58 ngx_path_t *path; 60 ngx_path_t *path;
65 size_t file_start; 67 size_t file_start;
66 ngx_log_t *log; 68 ngx_log_t *log;
67 } ngx_http_cache_ctx_t; 69 } ngx_http_cache_ctx_t;
68 70
69 71
72 typedef struct {
73 ngx_http_cache_hash_t *open_files;
74 } ngx_http_cache_conf_t;
75
76
70 #define NGX_HTTP_CACHE_STALE 1 77 #define NGX_HTTP_CACHE_STALE 1
71 #define NGX_HTTP_CACHE_AGED 2 78 #define NGX_HTTP_CACHE_AGED 2
72 #define NGX_HTTP_CACHE_THE_SAME 3 79 #define NGX_HTTP_CACHE_THE_SAME 3
73 80
74 81
75 int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx); 82 int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx);
76 int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq); 83 int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq);
84 int ngx_http_cache_update_file(ngx_http_request_t *r,ngx_http_cache_ctx_t *ctx,
85 ngx_str_t *temp_file);
86
87 ngx_http_cache_t *ngx_http_cache_get(ngx_http_cache_hash_t *cache,
88 ngx_str_t *key, uint32_t *crc);
89 ngx_http_cache_t *ngx_http_cache_alloc(ngx_http_cache_hash_t *cache,
90 ngx_str_t *key, uint32_t crc,
91 ngx_log_t *log);
92
77 int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name, 93 int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name,
78 ngx_dir_t *dir); 94 ngx_dir_t *dir);
79 int ngx_http_cache_update_file(ngx_http_request_t *r,ngx_http_cache_ctx_t *ctx, 95
80 ngx_str_t *temp_file); 96 extern ngx_module_t ngx_http_cache_module;
81 97
82 98
83 99
84 #endif /* _NGX_HTTP_CACHE_H_INCLUDED_ */ 100 #endif /* _NGX_HTTP_CACHE_H_INCLUDED_ */