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annotate src/core/ngx_shmtx.h @ 3992:a1dd9dc754ab

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A new fix for the case when ssl_session_cache defined, but ssl is not enabled in any server. The previous r1033 does not help when unused zone becomes used after reconfiguration, so it is backed out. The initial thought was to make SSL modules independed from SSL implementation and to keep OpenSSL code dependance as much as in separate files.
author Igor Sysoev <igor@sysoev.ru>
date Thu, 04 Aug 2011 11:12:30 +0000
parents 0daede16d68b
children 3f6040cd731e 4919fb357a5d
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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 #ifndef _NGX_SHMTX_H_INCLUDED_
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8 #define _NGX_SHMTX_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 typedef struct {
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16 #if (NGX_HAVE_ATOMIC_OPS)
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17 ngx_atomic_t *lock;
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18 #if (NGX_HAVE_POSIX_SEM)
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19 ngx_uint_t semaphore;
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20 sem_t sem;
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21 #endif
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22 #else
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23 ngx_fd_t fd;
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24 u_char *name;
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25 #endif
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26 ngx_uint_t spin;
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27 } ngx_shmtx_t;
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30 ngx_int_t ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name);
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31 void ngx_shmtx_destory(ngx_shmtx_t *mtx);
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32 ngx_uint_t ngx_shmtx_trylock(ngx_shmtx_t *mtx);
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33 void ngx_shmtx_lock(ngx_shmtx_t *mtx);
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34 void ngx_shmtx_unlock(ngx_shmtx_t *mtx);
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37 #endif /* _NGX_SHMTX_H_INCLUDED_ */