annotate src/core/ngx_shmtx.c @ 358:9121a0a91f47 NGINX_0_6_23

nginx 0.6.23 *) Change: the "off" parameter in the "ssl_session_cache" directive; now this is default parameter. *) Change: the "open_file_cache_retest" directive was renamed to the "open_file_cache_valid". *) Feature: the "open_file_cache_min_uses" directive. *) Feature: the ngx_http_gzip_static_module. *) Feature: the "gzip_disable" directive. *) Feature: the "memcached_pass" directive may be used inside the "if" block. *) Bugfix: a segmentation fault occurred in worker process, if the "memcached_pass" and "if" directives were used in the same location. *) Bugfix: if a "satisfy_any on" directive was used and not all access and auth modules directives were set, then other given access and auth directives were not tested; *) Bugfix: regex parameters in a "valid_referers" directive were not inherited from previous level. *) Bugfix: a "post_action" directive did run if a request was completed with 499 status code. *) Bugfix: optimization of 16K buffer usage in a SSL connection. Thanks to Ben Maurer. *) Bugfix: the STARTTLS in SMTP mode did not work. Thanks to Oleg Motienko. *) Bugfix: in HTTPS mode requests might fail with the "bad write retry" error; bug appeared in 0.5.13.
author Igor Sysoev <http://sysoev.ru>
date Thu, 27 Dec 2007 00:00:00 +0300
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children
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9
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11 #if (NGX_HAVE_ATOMIC_OPS)
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14 ngx_int_t
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15 ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name)
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16 {
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17 mtx->lock = addr;
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18
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19 return NGX_OK;
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20 }
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21
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22 #else
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23
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25 ngx_int_t
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26 ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name)
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27 {
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28 if (mtx->name) {
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29
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30 if (ngx_strcmp(name, mtx->name) == 0) {
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31 mtx->name = name;
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32 return NGX_OK;
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33 }
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35 ngx_shmtx_destory(mtx);
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36 }
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37
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38 mtx->fd = ngx_open_file(name, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN,
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39 NGX_FILE_DEFAULT_ACCESS);
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41 if (mtx->fd == NGX_INVALID_FILE) {
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42 ngx_log_error(NGX_LOG_EMERG, ngx_cycle->log, ngx_errno,
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43 ngx_open_file_n " \"%s\" failed", name);
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44 return NGX_ERROR;
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45 }
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47 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
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48 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno,
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49 ngx_delete_file_n " \"%s\" failed", name);
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50 }
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51
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52 mtx->name = name;
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54 return NGX_OK;
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55 }
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58 void
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59 ngx_shmtx_destory(ngx_shmtx_t *mtx)
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60 {
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61 if (ngx_close_file(mtx->fd) == NGX_FILE_ERROR) {
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62 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno,
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63 ngx_close_file_n " \"%s\" failed", mtx->name);
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64 }
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65 }
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68 #endif