Mercurial > hg > nginx
annotate src/core/ngx_shmtx.c @ 994:151ae1691971
fix the comments
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 09 Jan 2007 16:00:07 +0000 |
| parents | 201d017ea470 |
| children | 01884449985f |
| 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 | |
| 38 mtx->fd = ngx_open_file(name, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN); | |
| 39 | |
| 40 if (mtx->fd == NGX_INVALID_FILE) { | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
41 ngx_log_error(NGX_LOG_EMERG, ngx_cycle->log, ngx_errno, |
| 611 | 42 ngx_open_file_n " \"%s\" failed", name); |
| 43 return NGX_ERROR; | |
| 44 } | |
| 45 | |
| 46 if (ngx_delete_file(name) == NGX_FILE_ERROR) { | |
|
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
47 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, |
| 611 | 48 ngx_delete_file_n " \"%s\" failed", name); |
| 49 } | |
| 50 | |
| 51 mtx->name = name; | |
| 52 | |
| 53 return NGX_OK; | |
| 54 } | |
| 55 | |
| 56 | |
| 57 void | |
| 58 ngx_shmtx_destory(ngx_shmtx_t *mtx) | |
| 59 { | |
| 60 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
|
61 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, |
| 611 | 62 ngx_close_file_n " \"%s\" failed", mtx->name); |
| 63 } | |
| 64 } | |
| 65 | |
| 66 | |
| 67 #endif |