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annotate src/core/ngx_regex.h @ 4309:3f6040cd731e

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Added shmtx interface to forcibly unlock mutexes. It is currently used from master process on abnormal worker termination to unlock accept mutex (unlocking of accept mutex was broken in 1.0.2). It is expected to be used in the future to unlock other mutexes as well. Shared mutex code was rewritten to make this possible in a safe way, i.e. with a check if lock was actually held by the exited process. We again use pid to lock mutex, and use separate atomic variable for a count of processes waiting in sem_wait().
author Maxim Dounin <mdounin@mdounin.ru>
date Wed, 23 Nov 2011 13:55:38 +0000
parents 42c16d8bddbe
children 005fc2d5e84f 4919fb357a5d
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #ifndef _NGX_REGEX_H_INCLUDED_
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8 #define _NGX_REGEX_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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14 #include <pcre.h>
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17 #define NGX_REGEX_NO_MATCHED PCRE_ERROR_NOMATCH /* -1 */
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19 #define NGX_REGEX_CASELESS PCRE_CASELESS
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21 typedef pcre ngx_regex_t;
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24 typedef struct {
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25 ngx_str_t pattern;
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26 ngx_pool_t *pool;
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27 ngx_int_t options;
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28
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29 ngx_regex_t *regex;
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30 int captures;
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31 int named_captures;
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32 int name_size;
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33 u_char *names;
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34 ngx_str_t err;
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35 } ngx_regex_compile_t;
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36
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37
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38 typedef struct {
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39 ngx_regex_t *regex;
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40 u_char *name;
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41 } ngx_regex_elt_t;
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44 void ngx_regex_init(void);
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45 ngx_int_t ngx_regex_compile(ngx_regex_compile_t *rc);
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47 #define ngx_regex_exec(re, s, captures, size) \
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48 pcre_exec(re, NULL, (const char *) (s)->data, (s)->len, 0, 0, \
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49 captures, size)
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50 #define ngx_regex_exec_n "pcre_exec()"
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52 ngx_int_t ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log);
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55 #endif /* _NGX_REGEX_H_INCLUDED_ */