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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [sun4/] [sys/] [wait.h] - Blame information for rev 258

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Line No. Rev Author Line
1 207 jeremybenn
/* FIXME: From sys/sysvi386/sys */
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#ifndef _WAIT_H
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# define _WAIT_H
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# define WNOHANG 1
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# define WUNTRACED 2
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/*
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 * Unlike the atrocity that BSD ended up using, we do not have a "union
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 * wait," although I could probably implement one.  Given the code I
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 * sometimes end up porting, it might be a good thing.  Anyway, the
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 * format of a stat thingy, filled in by the wait*() routines, is:
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 * struct {
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 *    int filler:16;
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 *    union {
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 *        struct stopped {
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 *            int signo:8;
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 *            int o177:8;       // will be 0177
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 *        };
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 *        struct exited {
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 *            int retval:8;
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 *            int zero:8;       // 0, obviously 8-)
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 *        };
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 *        struct termed {
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 *            int zero:8;       // zeroes
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 *            int corep:1;      // was there a core file?
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 *            int signo:7;      // what?!  Only 127 signals?!
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 *        };
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 *        int value:16;
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 *     };
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 * };
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 *
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 * Braver souls than I can turn that into a union wait, if desired.  Ick.
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 */
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# define WIFEXITED(val) ((val)&0xff)
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# define WEXITSTATUS(val)       (((val)>>8)&0xff)
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# define WIFSIGNALED(val)       ((val) && !((val)&0xff))
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# define WTERMSIG(val)  (((val)>>8)&0x7f)
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# define WIFSTOPPED(val) (((val)&0xff)==0177)
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# define WSTOPSIG(val)  (((val)>>8)&0xff)
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#endif  /* _SYS_WAIT_H */
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