#ifndef _NGX_CORE_H_INCLUDED_
#define _NGX_CORE_H_INCLUDED_


#define  NGX_OK          0
#define  NGX_ERROR      -1
#define  NGX_DONE        NGX_ERROR
#define  NGX_AGAIN      -2
#define  NGX_WAITING    -3
#define  NGX_DECLINED   -4


#endif /* _NGX_CORE_H_INCLUDED_ */