Mercurial > hg > nginx

annotate src/core/ngx_slab.h @ 7690:8253424d1aff

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added size check to ngx_http_alloc_large_header_buffer(). This ensures that copying won't write more than the buffer size even if the buffer comes from hc->free and it is smaller than the large client header buffer size in the virtual host configuration. This might happen if size of large client header buffers is different in name-based virtual hosts, similarly to the problem with number of buffers fixed in 6926:e662cbf1b932.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 06 Aug 2020 05:02:22 +0300
parents 69f9ee0342db
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 357
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 357
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
diff changeset
3 * Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 4309
diff changeset
4 * Copyright (C) Nginx, Inc.
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 357
diff changeset
5 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 357
diff changeset
6
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 357
diff changeset
7
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #ifndef _NGX_SLAB_H_INCLUDED_
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9 #define _NGX_SLAB_H_INCLUDED_
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12 #include <ngx_config.h>
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 #include <ngx_core.h>
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
15
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
16 typedef struct ngx_slab_page_s ngx_slab_page_t;
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
17
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
18 struct ngx_slab_page_s {
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
19 uintptr_t slab;
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
20 ngx_slab_page_t *next;
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
21 uintptr_t prev;
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
22 };
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
23
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
24
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
25 typedef struct {
6828
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
26 ngx_uint_t total;
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
27 ngx_uint_t used;
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
28
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
29 ngx_uint_t reqs;
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
30 ngx_uint_t fails;
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
31 } ngx_slab_stat_t;
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
32
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
33
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
34 typedef struct {
4309
3f6040cd731e Added shmtx interface to forcibly unlock mutexes.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2905
diff changeset
35 ngx_shmtx_sh_t lock;
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
36
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
37 size_t min_size;
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
38 size_t min_shift;
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
39
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
40 ngx_slab_page_t *pages;
5718
c46657e391a3 Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents: 5634
diff changeset
41 ngx_slab_page_t *last;
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
42 ngx_slab_page_t free;
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
43
6828
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
44 ngx_slab_stat_t *stats;
6829
6e757036e588 Slab: free pages statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 6828
diff changeset
45 ngx_uint_t pfree;
6828
99770a5ea14f Slab: slots statistics.
Ruslan Ermilov <ru@nginx.com>
parents: 5726
diff changeset
46
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
47 u_char *start;
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
48 u_char *end;
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
49
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
50 ngx_shmtx_t mutex;
2611
2bce3f6416c6 improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents: 966
diff changeset
51
2bce3f6416c6 improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents: 966
diff changeset
52 u_char *log_ctx;
2bce3f6416c6 improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents: 966
diff changeset
53 u_char zero;
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2611
diff changeset
54
5634
5024d29354f1 Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
55 unsigned log_nomem:1;
5024d29354f1 Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4412
diff changeset
56
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2611
diff changeset
57 void *data;
2905
5ff1ae0eada7 test that zone has the same addresses in different processes
Igor Sysoev <igor@sysoev.ru>
parents: 2720
diff changeset
58 void *addr;
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
59 } ngx_slab_pool_t;
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
60
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
61
7081
69f9ee0342db Slab: fixed initialization on win32.
Ruslan Ermilov <ru@nginx.com>
parents: 6829
diff changeset
62 void ngx_slab_sizes_init(void);
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
63 void ngx_slab_init(ngx_slab_pool_t *pool);
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
64 void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size);
966
715336c243e1 many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents: 860
diff changeset
65 void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size);
5726
25ade23cf281 Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents: 5718
diff changeset
66 void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size);
25ade23cf281 Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents: 5718
diff changeset
67 void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size);
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
68 void ngx_slab_free(ngx_slab_pool_t *pool, void *p);
966
715336c243e1 many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents: 860
diff changeset
69 void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p);
860
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
70
201d017ea470 slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
71
357
e260514b9ad4 nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
72 #endif /* _NGX_SLAB_H_INCLUDED_ */