Mercurial > hg > nginx
annotate src/core/ngx_shmtx.c @ 9230:e14debe728b0 radix_with_skip
Closed the radix_with_skip branch.
The radix_with_skip branch is an archive of an experiment did in 2008,
and it is no longer relevant. It is now closed to avoid cluttering of
the branches list. If needed, closed branches still can be seen with
"hg branches --closed".
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Sat, 23 Mar 2024 04:30:45 +0300 |
| parents | 01884449985f |
| children | 0daede16d68b |
| rev | line source |
|---|---|
| 611 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 | |
| 10 | |
| 11 #if (NGX_HAVE_ATOMIC_OPS) | |
| 12 | |
| 13 | |
| 14 ngx_int_t | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
15 ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name) |
| 611 | 16 { |
| 17 mtx->lock = addr; | |
| 18 | |
| 19 return NGX_OK; | |
| 20 } | |
| 21 | |
| 22 #else | |
| 23 | |
| 24 | |
| 25 ngx_int_t | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
26 ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name) |
| 611 | 27 { |
| 28 if (mtx->name) { | |
| 29 | |
| 30 if (ngx_strcmp(name, mtx->name) == 0) { | |
| 31 mtx->name = name; | |
| 32 return NGX_OK; | |
| 33 } | |
| 34 | |
| 35 ngx_shmtx_destory(mtx); | |
| 36 } | |
| 37 | |
|
1100
01884449985f
fix building on platforms with non-supported atomic operations
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
38 mtx->fd = ngx_open_file(name, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN, |
|
01884449985f
fix building on platforms with non-supported atomic operations
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
39 NGX_FILE_DEFAULT_ACCESS); |
| 611 | 40 |
| 41 if (mtx->fd == NGX_INVALID_FILE) { | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
42 ngx_log_error(NGX_LOG_EMERG, ngx_cycle->log, ngx_errno, |
| 611 | 43 ngx_open_file_n " \"%s\" failed", name); |
| 44 return NGX_ERROR; | |
| 45 } | |
| 46 | |
| 47 if (ngx_delete_file(name) == NGX_FILE_ERROR) { | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
48 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, |
| 611 | 49 ngx_delete_file_n " \"%s\" failed", name); |
| 50 } | |
| 51 | |
| 52 mtx->name = name; | |
| 53 | |
| 54 return NGX_OK; | |
| 55 } | |
| 56 | |
| 57 | |
| 58 void | |
| 59 ngx_shmtx_destory(ngx_shmtx_t *mtx) | |
| 60 { | |
| 61 if (ngx_close_file(mtx->fd) == NGX_FILE_ERROR) { | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
62 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, |
| 611 | 63 ngx_close_file_n " \"%s\" failed", mtx->name); |
| 64 } | |
| 65 } | |
| 66 | |
| 67 | |
| 68 #endif |