Mercurial > hg > nginx
view src/core/ngx_md5.h @ 4309:3f6040cd731e
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 | 38e6f45c5e3d |
children | d620f497c50f |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_MD5_H_INCLUDED_ #define _NGX_MD5_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #if (NGX_HAVE_MD5) #if (NGX_HAVE_OPENSSL_MD5_H) #include <openssl/md5.h> #else #include <md5.h> #endif typedef MD5_CTX ngx_md5_t; #if (NGX_OPENSSL_MD5) #define ngx_md5_init MD5_Init #define ngx_md5_update MD5_Update #define ngx_md5_final MD5_Final #else #define ngx_md5_init MD5Init #define ngx_md5_update MD5Update #define ngx_md5_final MD5Final #endif #else /* !NGX_HAVE_MD5 */ typedef struct { uint64_t bytes; uint32_t a, b, c, d; u_char buffer[64]; } ngx_md5_t; void ngx_md5_init(ngx_md5_t *ctx); void ngx_md5_update(ngx_md5_t *ctx, const void *data, size_t size); void ngx_md5_final(u_char result[16], ngx_md5_t *ctx); #endif #endif /* _NGX_MD5_H_INCLUDED_ */