Mercurial > hg > nginx-quic

annotate src/os/win32/ngx_shmem.c @ 4448:539355d9e675 stable-1.0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge of r4404: Fixed sched_setaffinity(2) to correctly pass size. Second argument (cpusetsize) is size in bytes, not in bits. Previously used constant 32 resulted in reading of uninitialized memory and caused EINVAL to be returned on some Linux kernels.
author Maxim Dounin <mdounin@mdounin.ru>
date Sun, 05 Feb 2012 19:25:24 +0000
parents 474a9daf8c80
children d620f497c50f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
1
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
2 /*
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
3 * Copyright (C) Igor Sysoev
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
4 */
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
5
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
6
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 #include <ngx_config.h>
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_core.h>
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11 ngx_int_t
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12 ngx_shm_alloc(ngx_shm_t *shm)
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 {
2903
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
14 u_char *name;
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
15 uint64_t size;
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
16
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
17 name = ngx_alloc(shm->name.len + 2 + sizeof(NGX_INT32_LEN), shm->log);
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
18 if (name == NULL) {
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
19 return NGX_ERROR;
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
20 }
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
21
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
22 (void) ngx_sprintf(name, "%V_%s%Z", &shm->name, ngx_unique);
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
23
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
24 ngx_set_errno(0);
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
25
2903
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
26 size = shm->size;
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
27
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
28 shm->handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2903
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
29 (u_long) (size >> 32),
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
30 (u_long) (size & 0xffffffff),
beb0707ed8ab allow shared memory segments more than 4G
Igor Sysoev <igor@sysoev.ru>
parents: 2737
diff changeset
31 (char *) name);
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
32
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
33 if (shm->handle == NULL) {
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
34 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
2716
d5896f6608e8 move zone name from ngx_shm_zone_t to ngx_shm_t to use Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 605
diff changeset
35 "CreateFileMapping(%uz, %s) failed",
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
36 shm->size, name);
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
37 ngx_free(name);
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
38
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
39 return NGX_ERROR;
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
40 }
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
41
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
42 ngx_free(name);
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
43
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
44 if (ngx_errno == ERROR_ALREADY_EXISTS) {
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
45 shm->exists = 1;
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
46 }
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
47
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
48 shm->addr = MapViewOfFile(shm->handle, FILE_MAP_WRITE, 0, 0, 0);
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
49
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
50 if (shm->addr != NULL) {
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
51 return NGX_OK;
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
52 }
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
53
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
54 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
55 "MapViewOfFile(%uz) of file mapping \"%V\" failed",
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
56 shm->size, &shm->name);
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
57
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
58 if (CloseHandle(shm->handle) == 0) {
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
59 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
60 "CloseHandle() of file mapping \"%V\" failed",
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
61 &shm->name);
2720
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
62 }
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
63
b3b8c66bd520 support attaching to an existent Win32 shared memory
Igor Sysoev <igor@sysoev.ru>
parents: 2716
diff changeset
64 return NGX_ERROR;
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
65 }
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
66
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
67
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
68 void
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
69 ngx_shm_free(ngx_shm_t *shm)
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
70 {
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
71 if (UnmapViewOfFile(shm->addr) == 0) {
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
72 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
73 "UnmapViewOfFile(%p) of file mapping \"%V\" failed",
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
74 shm->addr, &shm->name);
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
75 }
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
76
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
77 if (CloseHandle(shm->handle) == 0) {
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
78 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
2904
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
79 "CloseHandle() of file mapping \"%V\" failed",
474a9daf8c80 *) fix memory leak in successful case
Igor Sysoev <igor@sysoev.ru>
parents: 2903
diff changeset
80 &shm->name);
605
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
81 }
5dac8c7fb71b nginx-0.3.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
82 }