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view src/core/ngx_shmtx.h @ 4242:025396b57ec1 stable-1.0

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Merging r4013, r4200: error_log related fixes: *) Complain on invalid log levels. Previously only first log level was required to be correct, while error_log directive in fact accepts list of levels (e.g. one may specify "error_log ... debug_core debug_http;"). This resulted in (avoidable) wierd behaviour on missing semicolon after error_log directive, e.g. error_log /path/to/log info index index.php; silently skipped index directive and it's arguments (trying to interpret them as log levels without checking to be correct). *) Fixed configuration summary and manpage contents for the special --error-log-path=stderr case.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 01 Nov 2011 11:23:26 +0000
parents 0daede16d68b
children 3f6040cd731e 4919fb357a5d
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/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_SHMTX_H_INCLUDED_
#define _NGX_SHMTX_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


typedef struct {
#if (NGX_HAVE_ATOMIC_OPS)
    ngx_atomic_t  *lock;
#if (NGX_HAVE_POSIX_SEM)
    ngx_uint_t     semaphore;
    sem_t          sem;
#endif
#else
    ngx_fd_t       fd;
    u_char        *name;
#endif
    ngx_uint_t     spin;
} ngx_shmtx_t;


ngx_int_t ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name);
void ngx_shmtx_destory(ngx_shmtx_t *mtx);
ngx_uint_t ngx_shmtx_trylock(ngx_shmtx_t *mtx);
void ngx_shmtx_lock(ngx_shmtx_t *mtx);
void ngx_shmtx_unlock(ngx_shmtx_t *mtx);


#endif /* _NGX_SHMTX_H_INCLUDED_ */