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/* FIXME: From sys/sysvi386/sys */
#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 */
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