#ifndef _SYS_WAIT_H_
#define _SYS_WAIT_H_

#include <sys/types.h>
#include <sys/resource.h>
#include <sys/time.h>

#ifdef __cplusplus
extern "C" {
#endif


#define WIFSIGNALED(status)	(!WIFSTOPPED(status) && !WIFEXITED(status))
#define WIFSTOPPED(status)	(((status) & 0xff) == 0x7f)
#define WEXITSTATUS(status)	(((status) & 0xff00) >> 8)
#define WTERMSIG(status)	((status) & 0x7f)
#define WCOREDUMP(status)	((status) & 0x80)
#define WIFEXITED(status)	(WTERMSIG(status) == 0)
#define WNOHANG	0x00000001
#define WUNTRACED	0x00000002
#define WCOREFLAG	0x80
#define WSTOPSIG(status)	WEXITSTATUS(status)


    typedef enum {
	P_ALL,
	P_PID,
	P_PGID
    } idtype_t;


    extern pid_t wait(int *);
    extern pid_t waitpid(pid_t, int *, int);
    extern pid_t wait4(pid_t, int *, int, struct rusage *);
#ifdef __cplusplus
}
#endif
#endif