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view src/core/ngx_rwlock.h @ 7339:d9029e113a05

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Upstream keepalive: keepalive_timeout directive. The directive configures maximum time a connection can be kept in the cache. By configuring a time which is smaller than the corresponding timeout on the backend side one can avoid the race between closing a connection by the backend and nginx trying to use the same connection to send a request at the same time.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 10 Aug 2018 21:54:23 +0300
parents d1816a2696de
children
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/*
 * Copyright (C) Ruslan Ermilov
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_RWLOCK_H_INCLUDED_
#define _NGX_RWLOCK_H_INCLUDED_


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


void ngx_rwlock_wlock(ngx_atomic_t *lock);
void ngx_rwlock_rlock(ngx_atomic_t *lock);
void ngx_rwlock_unlock(ngx_atomic_t *lock);
void ngx_rwlock_downgrade(ngx_atomic_t *lock);


#endif /* _NGX_RWLOCK_H_INCLUDED_ */