Mercurial > hg > nginx
annotate src/core/ngx_open_file_cache.h @ 4154:57d45d345651
Fixed segmentation fault with empty config on Windows.
See here for report:
http://mailman.nginx.org/pipermail/nginx-ru/2011-September/043288.html
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 27 Sep 2011 12:07:09 +0000 |
parents | e7cd13b7f759 |
children | d620f497c50f |
rev | line source |
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1453 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 | |
10 | |
11 #ifndef _NGX_OPEN_FILE_CACHE_H_INCLUDED_ | |
12 #define _NGX_OPEN_FILE_CACHE_H_INCLUDED_ | |
13 | |
14 | |
2277 | 15 #define NGX_OPEN_FILE_DIRECTIO_OFF NGX_MAX_OFF_T_VALUE |
16 | |
17 | |
1453 | 18 typedef struct { |
19 ngx_fd_t fd; | |
20 ngx_file_uniq_t uniq; | |
21 time_t mtime; | |
22 off_t size; | |
3899
e7cd13b7f759
Use more precise stat.st_blocks to account cache size on Unix
Igor Sysoev <igor@sysoev.ru>
parents:
3178
diff
changeset
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23 off_t fs_size; |
2129 | 24 off_t directio; |
3178 | 25 size_t read_ahead; |
2756
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
Igor Sysoev <igor@sysoev.ru>
parents:
2277
diff
changeset
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26 |
1453 | 27 ngx_err_t err; |
2756
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
Igor Sysoev <igor@sysoev.ru>
parents:
2277
diff
changeset
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28 char *failed; |
1453 | 29 |
1767
c42431762903
open_file_cache_retest > open_file_cache_valid
Igor Sysoev <igor@sysoev.ru>
parents:
1765
diff
changeset
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30 time_t valid; |
1453 | 31 |
1772 | 32 ngx_uint_t min_uses; |
33 | |
1453 | 34 unsigned test_dir:1; |
2756
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
Igor Sysoev <igor@sysoev.ru>
parents:
2277
diff
changeset
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35 unsigned test_only:1; |
2072 | 36 unsigned log:1; |
1453 | 37 unsigned errors:1; |
1457 | 38 unsigned events:1; |
1453 | 39 |
40 unsigned is_dir:1; | |
41 unsigned is_file:1; | |
42 unsigned is_link:1; | |
43 unsigned is_exec:1; | |
2231
8564129d49b6
*) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents:
2129
diff
changeset
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44 unsigned is_directio:1; |
1453 | 45 } ngx_open_file_info_t; |
46 | |
47 | |
48 typedef struct ngx_cached_open_file_s ngx_cached_open_file_t; | |
49 | |
50 struct ngx_cached_open_file_s { | |
51 ngx_rbtree_node_t node; | |
1765 | 52 ngx_queue_t queue; |
1453 | 53 |
54 u_char *name; | |
55 time_t created; | |
56 time_t accessed; | |
57 | |
58 ngx_fd_t fd; | |
59 ngx_file_uniq_t uniq; | |
60 time_t mtime; | |
61 off_t size; | |
62 ngx_err_t err; | |
63 | |
1772 | 64 uint32_t uses; |
65 | |
1453 | 66 unsigned count:24; |
67 unsigned close:1; | |
1775 | 68 unsigned use_event:1; |
1453 | 69 |
70 unsigned is_dir:1; | |
71 unsigned is_file:1; | |
72 unsigned is_link:1; | |
73 unsigned is_exec:1; | |
2246
987831d73bd8
cache directio flag in open file cache
Igor Sysoev <igor@sysoev.ru>
parents:
2231
diff
changeset
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74 unsigned is_directio:1; |
1453 | 75 |
76 ngx_event_t *event; | |
77 }; | |
78 | |
79 | |
80 typedef struct { | |
81 ngx_rbtree_t rbtree; | |
1761 | 82 ngx_rbtree_node_t sentinel; |
1765 | 83 ngx_queue_t expire_queue; |
1453 | 84 |
85 ngx_uint_t current; | |
86 ngx_uint_t max; | |
87 time_t inactive; | |
88 } ngx_open_file_cache_t; | |
89 | |
90 | |
91 typedef struct { | |
92 ngx_open_file_cache_t *cache; | |
93 ngx_cached_open_file_t *file; | |
1772 | 94 ngx_uint_t min_uses; |
1453 | 95 ngx_log_t *log; |
96 } ngx_open_file_cache_cleanup_t; | |
97 | |
98 | |
99 typedef struct { | |
100 | |
101 /* ngx_connection_t stub to allow use c->fd as event ident */ | |
102 void *data; | |
103 ngx_event_t *read; | |
104 ngx_event_t *write; | |
105 ngx_fd_t fd; | |
106 | |
107 ngx_cached_open_file_t *file; | |
108 ngx_open_file_cache_t *cache; | |
109 } ngx_open_file_cache_event_t; | |
110 | |
111 | |
112 ngx_open_file_cache_t *ngx_open_file_cache_init(ngx_pool_t *pool, | |
113 ngx_uint_t max, time_t inactive); | |
114 ngx_int_t ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name, | |
115 ngx_open_file_info_t *of, ngx_pool_t *pool); | |
116 | |
117 | |
118 #endif /* _NGX_OPEN_FILE_CACHE_H_INCLUDED_ */ |