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#ifndef _WAIT_H

# define _WAIT_H

# define WNOHANG 1

# define WUNTRACED 2

/*

 * Unlike the atrocity that BSD ended up using, we do not have a "union

 * wait," although I could probably implement one.  Given the code I

 * sometimes end up porting, it might be a good thing.  Anyway, the

 * format of a stat thingy, filled in by the wait*() routines, is:

 * struct {

 *    int filler:16;

 *    union {

 *        struct stopped {

 *            int signo:8;

 *            int o177:8;       // will be 0177

 *        };

 *        struct exited {

 *            int retval:8;

 *            int zero:8;       // 0, obviously 8-)

 *        };

 *        struct termed {

 *            int zero:8;       // zeroes

 *            int corep:1;      // was there a core file?

 *            int signo:7;      // what?!  Only 127 signals?!

 *        };

 *        int value:16;

 *     };

 * };

 *

 * Braver souls than I can turn that into a union wait, if desired.  Ick.

 */

# define WIFEXITED(val) ((val)&0xff)

# define WEXITSTATUS(val)       (((val)>>8)&0xff)

# define WIFSIGNALED(val)       ((val) && !((val)&0xff))

# define WTERMSIG(val)  (((val)>>8)&0x7f)

# define WIFSTOPPED(val) (((val)&0xff)==0177)

# define WSTOPSIG(val)  (((val)>>8)&0xff)

#endif  /* _SYS_WAIT_H */