Merge of r4892: keepalive memory usage optimization. The ngx_http_keepalive_handler() function is now trying to not keep c->buffer's memory for idle connections. This behaviour is consistent with the ngx_http_set_keepalive() function and it should decrease memory usage in some cases (especially if epoll/rtsig is used).

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_CRYPT_H_INCLUDED_
#define _NGX_CRYPT_H_INCLUDED_


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


ngx_int_t ngx_crypt(ngx_pool_t *pool, u_char *key, u_char *salt,
    u_char **encrypted);


#endif /* _NGX_CRYPT_H_INCLUDED_ */