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view src/core/ngx_rwlock.h @ 7548:99257b06b0bd

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HTTP/2: limited number of DATA frames. Fixed excessive memory growth and CPU usage if stream windows are manipulated in a way that results in generating many small DATA frames. Fix is to limit the number of simultaneously allocated DATA frames.
author Ruslan Ermilov <ru@nginx.com>
date Tue, 13 Aug 2019 15:43:36 +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_ */