annotate src/core/ngx_shmtx.h @ 384:09b703ae3ba5 NGINX_0_6_36

nginx 0.6.36 *) Change: now the "Invalid argument" error returned by setsockopt(TCP_NODELAY) on Solaris, is ignored. *) Change: now POSTs without "Content-Length" header line are allowed. *) Feature: the "try_files" directive. *) Feature: the --with-pcre option in the configure. *) Feature: the "if_modified_since" directive. *) Feature: the "$cookie_..." variables. *) Feature: the "$arg_..." variables. *) Bugfix: compatibility with Tru64 UNIX. Thanks to Dustin Marquess. *) Bugfix: a "ssl_engine" directive did not use a SSL-accelerator for asymmetric ciphers. Thanks to Marcin Gozdalik. *) Bugfix: in a redirect rewrite directive original arguments were concatenated with new arguments by a "?" rather than an "&"; the bug had appeared in 0.1.18. Thanks to Maxim Dounin. *) Bugfix: nginx could not be built on AIX. *) Bugfix: a double response might be returned if the epoll or rtsig methods are used and a redirect was returned to a request with body. Thanks to Eden Li. *) Bugfix: a segmentation fault might occur in worker process if "resolver" directive was used in SMTP proxy. *) Bugfix: fastcgi_store stored files not always. *) Bugfix: nginx did not process a FastCGI server response, if the server send too many messages to stderr before response.
author Igor Sysoev <http://sysoev.ru>
date Thu, 02 Apr 2009 00:00:00 +0400
parents 5bef04fc3fd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
2 /*
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
3 * Copyright (C) Igor Sysoev
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
4 */
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
5
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
6
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
7 #ifndef _NGX_SHMTX_H_INCLUDED_
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
8 #define _NGX_SHMTX_H_INCLUDED_
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
9
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
10
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
11 #include <ngx_config.h>
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
12 #include <ngx_core.h>
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
13
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
14
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
15 typedef struct {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
16 #if (NGX_HAVE_ATOMIC_OPS)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
17 ngx_atomic_t *lock;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
18 #else
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
19 ngx_fd_t fd;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
20 u_char *name;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
21 #endif
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
22 } ngx_shmtx_t;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
23
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
24
258
6ae1357b7b7c nginx 0.4.14
Igor Sysoev <http://sysoev.ru>
parents: 160
diff changeset
25 ngx_int_t ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name);
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
26
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
27
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
28 #if (NGX_HAVE_ATOMIC_OPS)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
29
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
30 static ngx_inline ngx_uint_t
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
31 ngx_shmtx_trylock(ngx_shmtx_t *mtx)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
32 {
274
052a7b1d40e5 nginx 0.5.7
Igor Sysoev <http://sysoev.ru>
parents: 258
diff changeset
33 return (*mtx->lock == 0 && ngx_atomic_cmp_set(mtx->lock, 0, ngx_pid));
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
34 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
35
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
36 #define ngx_shmtx_lock(mtx) ngx_spinlock((mtx)->lock, ngx_pid, 1024)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
37
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
38 #define ngx_shmtx_unlock(mtx) (void) ngx_atomic_cmp_set((mtx)->lock, ngx_pid, 0)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
39
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
40 #define ngx_shmtx_destory(mtx)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
41
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
42
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
43 #else
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
44
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
45 static ngx_inline ngx_uint_t
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
46 ngx_shmtx_trylock(ngx_shmtx_t *mtx)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
47 {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
48 ngx_err_t err;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
49
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
50 err = ngx_trylock_fd(mtx->fd);
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
51
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
52 if (err == 0) {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
53 return 1;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
54 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
55
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
56 if (err == NGX_EAGAIN) {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
57 return 0;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
58 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
59
384
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
60 #if __osf__ /* Tru64 UNIX */
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
61
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
62 if (err == NGX_EACCESS) {
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
63 return 0;
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
64 }
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
65
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
66 #endif
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
67
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
68 ngx_log_abort(err, ngx_trylock_fd_n " %s failed", mtx->name);
286
5bef04fc3fd5 nginx 0.5.13
Igor Sysoev <http://sysoev.ru>
parents: 274
diff changeset
69
5bef04fc3fd5 nginx 0.5.13
Igor Sysoev <http://sysoev.ru>
parents: 274
diff changeset
70 return 0;
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
71 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
72
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
73
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
74 static ngx_inline void
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
75 ngx_shmtx_lock(ngx_shmtx_t *mtx)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
76 {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
77 ngx_err_t err;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
78
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
79 err = ngx_lock_fd(mtx->fd);
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
80
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
81 if (err == 0) {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
82 return;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
83 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
84
384
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
85 ngx_log_abort(err, ngx_lock_fd_n " %s failed", mtx->name);
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
86 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
87
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
88
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
89 static ngx_inline void
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
90 ngx_shmtx_unlock(ngx_shmtx_t *mtx)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
91 {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
92 ngx_err_t err;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
93
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
94 err = ngx_unlock_fd(mtx->fd);
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
95
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
96 if (err == 0) {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
97 return;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
98 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
99
384
09b703ae3ba5 nginx 0.6.36
Igor Sysoev <http://sysoev.ru>
parents: 286
diff changeset
100 ngx_log_abort(err, ngx_unlock_fd_n " %s failed", mtx->name);
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
101 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
102
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
103
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
104 void ngx_shmtx_destory(ngx_shmtx_t *mtx);
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
105
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
106 #endif
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
107
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
108
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
109 #endif /* _NGX_SHMTX_H_INCLUDED_ */