Mercurial > hg > nginx-vendor-0-5

annotate src/core/ngx_shmtx.h @ 286:5bef04fc3fd5 NGINX_0_5_13

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx 0.5.13 *) Feature: the COPY and MOVE methods. *) Bugfix: the ngx_http_realip_module set garbage for requests passed via keep-alive connection. *) Bugfix: nginx did not work on big-endian 64-bit Linux. Thanks to Andrei Nigmatulin. *) Bugfix: now when IMAP/POP3 proxy receives too long command it closes the connection right away, but not after timeout. *) Bugfix: if the "epoll" method was used and a client closed a connection prematurely, then nginx closed the connection after a send timeout only. *) Bugfix: nginx could not be built on platforms different from i386, amd64, sparc and ppc; bug appeared in 0.5.8.
author Igor Sysoev <http://sysoev.ru>
date Mon, 19 Feb 2007 00:00:00 +0300
parents 052a7b1d40e5
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
258
6ae1357b7b7c nginx 0.4.14
Igor Sysoev <http://sysoev.ru>
parents: 160
diff changeset
60 ngx_log_abort(err, ngx_trylock_fd_n " failed");
286
5bef04fc3fd5 nginx 0.5.13
Igor Sysoev <http://sysoev.ru>
parents: 274
diff changeset
61
5bef04fc3fd5 nginx 0.5.13
Igor Sysoev <http://sysoev.ru>
parents: 274
diff changeset
62 return 0;
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
63 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
64
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
65
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
66 static ngx_inline void
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
67 ngx_shmtx_lock(ngx_shmtx_t *mtx)
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
68 {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
69 ngx_err_t err;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
70
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
71 err = ngx_lock_fd(mtx->fd);
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 if (err == 0) {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
74 return;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
75 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
76
258
6ae1357b7b7c nginx 0.4.14
Igor Sysoev <http://sysoev.ru>
parents: 160
diff changeset
77 ngx_log_abort(err, ngx_lock_fd_n " failed");
160
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
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 static ngx_inline void
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
82 ngx_shmtx_unlock(ngx_shmtx_t *mtx)
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 ngx_err_t err;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
85
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
86 err = ngx_unlock_fd(mtx->fd);
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 if (err == 0) {
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
89 return;
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
90 }
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
91
258
6ae1357b7b7c nginx 0.4.14
Igor Sysoev <http://sysoev.ru>
parents: 160
diff changeset
92 ngx_log_abort(err, ngx_unlock_fd_n " failed");
160
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
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 void ngx_shmtx_destory(ngx_shmtx_t *mtx);
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
97
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
98 #endif
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
99
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
100
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
101 #endif /* _NGX_SHMTX_H_INCLUDED_ */