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annotate src/core/ngx_shmtx.c @ 258:6ae1357b7b7c NGINX_0_4_14

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nginx 0.4.14 *) Feature: the "proxy_pass_error_message" directive in IMAP/POP3 proxy. *) Feature: now configure detects system PCRE library on FreeBSD, Linux, and NetBSD. *) Bugfix: ngx_http_perl_module did not work with perl built with the threads support; bug appeared in 0.3.38. *) Bugfix: ngx_http_perl_module did not work if perl was called recursively. *) Bugfix: nginx ignored a host name in an request line. *) Bugfix: a worker process may got caught in an endless loop, if a FastCGI server sent too many data to the stderr. *) Bugfix: the $upstream_response_time variable may be negative if the system time was changed backward. *) Bugfix: the "Auth-Login-Attempt" parameter was not sent to IMAP/POP3 proxy authentication server when POP3 was used. *) Bugfix: a segmentation fault might occur if connect to IMAP/POP3 proxy authentication server failed.
author Igor Sysoev <http://sysoev.ru>
date Mon, 27 Nov 2006 00:00:00 +0300
parents 73e8476f9142
children 3dbecd747fbb
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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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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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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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38 mtx->fd = ngx_open_file(name, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN);
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40 if (mtx->fd == NGX_INVALID_FILE) {
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41 ngx_log_error(NGX_LOG_EMERG, ngx_cycle->log, ngx_errno,
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42 ngx_open_file_n " \"%s\" failed", name);
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43 return NGX_ERROR;
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44 }
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45
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46 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
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47 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno,
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48 ngx_delete_file_n " \"%s\" failed", name);
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49 }
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50
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51 mtx->name = name;
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52
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53 return NGX_OK;
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54 }
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57 void
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58 ngx_shmtx_destory(ngx_shmtx_t *mtx)
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59 {
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60 if (ngx_close_file(mtx->fd) == NGX_FILE_ERROR) {
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61 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno,
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62 ngx_close_file_n " \"%s\" failed", mtx->name);
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63 }
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64 }
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67 #endif