Mercurial > hg > nginx

annotate src/os/unix/ngx_shared.c @ 461:a88a3e4e158f release-0.1.5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.1.5-RELEASE import *) Bugfix: on Solaris and Linux there may be too many "recvmsg() returned not enough data" alerts. *) Bugfix: there were the "writev() failed (22: Invalid argument)" errors on Solaris in proxy mode without sendfile. On other platforms that do not support sendfile at all the process got caught in an endless loop. *) Bugfix: segmentation fault on Solaris in proxy mode and using sendfile. *) Bugfix: segmentation fault on Solaris. *) Bugfix: on-line upgrade did not work on Linux. *) Bugfix: the ngx_http_autoindex_module module did not escape the spaces, the quotes, and the percent signs in the directory listing. *) Change: the decrease of the copy operations. *) Feature: the userid_p3p directive.
author Igor Sysoev <igor@sysoev.ru>
date Thu, 11 Nov 2004 14:07:14 +0000
parents 42d11f017717
children bbd6b0b4a2b1
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: 358
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: 358
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
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: 358
diff changeset
4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 358
diff changeset
5
358
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
6
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 #include <ngx_config.h>
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_core.h>
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11 #if (HAVE_MAP_ANON)
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 void *ngx_create_shared_memory(size_t size, ngx_log_t *log)
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14 {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
15 void *p;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
16
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
17 p = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED, -1, 0);
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
18
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
19 if (p == MAP_FAILED) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
20 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
21 "mmap(MAP_ANON|MAP_SHARED, %uz) failed", size);
358
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
22 return NULL;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
23 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
24
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
25 return p;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
26 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
27
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
28 #elif (HAVE_MAP_DEVZERO)
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
29
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
30 void *ngx_create_shared_memory(size_t size, ngx_log_t *log)
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
31 {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
32 void *p;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
33 ngx_fd_t fd;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
34
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
35 fd = open("/dev/zero", O_RDWR);
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
36
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
37 if (fd == -1) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
38 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
39 "open(/dev/zero) failed");
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
40 return NULL;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
41 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
42
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
43 p = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
44
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
45 if (p == MAP_FAILED) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
46 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
47 "mmap(/dev/zero, MAP_SHARED, %uz) failed", size);
358
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
48 p = NULL;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
49 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
50
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
51 if (close(fd) == -1) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
52 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "close() failed");
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
53 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
54
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
55 return p;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
56 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
57
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
58 #elif (HAVE_SYSVSHM)
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
59
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
60 #include <sys/ipc.h>
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
61 #include <sys/shm.h>
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
62
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
63
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
64 void *ngx_create_shared_memory(size_t size, ngx_log_t *log)
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
65 {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
66 int id;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
67 void *p;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
68
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
69 id = shmget(IPC_PRIVATE, size, (SHM_R|SHM_W|IPC_CREAT));
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
70
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
71 if (id == -1) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
72 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
73 "shmget(%uz) failed", size);
358
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
74 return NULL;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
75 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
76
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
77 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "shmget id: %d", id);
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
78
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
79 p = shmat(id, NULL, 0);
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
80
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
81 if (p == (void *) -1) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
82 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "shmat() failed");
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
83 p = NULL;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
84 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
85
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
86 if (shmctl(id, IPC_RMID, NULL) == -1) {
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
87 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "shmctl(IPC_RMID) failed");
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
88 p = NULL;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
89 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
90
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
91 return p;
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
92 }
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
93
0a03c921c81d nginx-0.0.7-2004-06-17-21:18:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
94 #endif