SSL: ngx_ssl_shutdown() rework. Instead of calling SSL_free() with each return point, introduced a single place where cleanup happens. As a positive side effect, this fixes two potential memory leaks on ngx_handle_read_event() and ngx_handle_write_event() errors where there were no SSL_free() calls (though unlikely practical, as errors there are only expected to happen due to bugs or kernel issues).

/*
 * 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_ */