Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_shmem.c @ 5860:c9787372f16d
Limit conn: use complex value in limit_conn_zone (ticket #121).
One intentional side effect of this change is that key is allowed only
in the first position. Previously, it was possible to specify the key
variable at any position, but that was never documented, and is contrary
to nginx configuration practice for positional parameters.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 24 Sep 2014 21:55:19 +0400 |
parents | b3d4e9c66e24 |
children | af7eba90645d |
rev | line source |
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605 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
605 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 | |
11 | |
12 ngx_int_t | |
13 ngx_shm_alloc(ngx_shm_t *shm) | |
14 { | |
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15 u_char *name; |
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16 uint64_t size; |
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17 |
4570
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Win32: fixed memory allocation for shmem name (ticket #134).
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18 name = ngx_alloc(shm->name.len + 2 + NGX_INT32_LEN, shm->log); |
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19 if (name == NULL) { |
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20 return NGX_ERROR; |
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21 } |
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22 |
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23 (void) ngx_sprintf(name, "%V_%s%Z", &shm->name, ngx_unique); |
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24 |
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25 ngx_set_errno(0); |
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26 |
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27 size = shm->size; |
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28 |
605 | 29 shm->handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, |
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30 (u_long) (size >> 32), |
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31 (u_long) (size & 0xffffffff), |
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32 (char *) name); |
605 | 33 |
34 if (shm->handle == NULL) { | |
35 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, | |
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36 "CreateFileMapping(%uz, %s) failed", |
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37 shm->size, name); |
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38 ngx_free(name); |
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39 |
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40 return NGX_ERROR; |
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41 } |
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42 |
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43 ngx_free(name); |
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44 |
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45 if (ngx_errno == ERROR_ALREADY_EXISTS) { |
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46 shm->exists = 1; |
605 | 47 } |
48 | |
49 shm->addr = MapViewOfFile(shm->handle, FILE_MAP_WRITE, 0, 0, 0); | |
50 | |
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51 if (shm->addr != NULL) { |
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52 return NGX_OK; |
605 | 53 } |
54 | |
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55 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
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56 "MapViewOfFile(%uz) of file mapping \"%V\" failed", |
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57 shm->size, &shm->name); |
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58 |
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59 if (CloseHandle(shm->handle) == 0) { |
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60 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, |
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61 "CloseHandle() of file mapping \"%V\" failed", |
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62 &shm->name); |
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63 } |
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64 |
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65 return NGX_ERROR; |
605 | 66 } |
67 | |
68 | |
69 void | |
70 ngx_shm_free(ngx_shm_t *shm) | |
71 { | |
72 if (UnmapViewOfFile(shm->addr) == 0) { | |
73 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, | |
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74 "UnmapViewOfFile(%p) of file mapping \"%V\" failed", |
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75 shm->addr, &shm->name); |
605 | 76 } |
77 | |
78 if (CloseHandle(shm->handle) == 0) { | |
79 ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno, | |
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80 "CloseHandle() of file mapping \"%V\" failed", |
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81 &shm->name); |
605 | 82 } |
83 } |