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1.1 root 1:
2: /* Define how to access the structure that the wait system call stores.
3: On many systems, there is a structure defined for this.
4: But on vanilla-ish USG systems there is not. */
5:
6: #ifndef HAVE_WAIT_STRUCT
7: #define WAITTYPE int
8: #define WIFSTOPPED(w) (((w)&0377) == 0177)
9: #define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
10: #define WIFEXITED(w) (((w)&0377) == 0)
11: #define WRETCODE(w) ((w) >> 8)
12: #define WSTOPSIG(w) ((w) >> 8)
13: #define WCOREDUMP(w) (((w)&0200) != 0)
14: #define WTERMSIG(w) ((w) & 0177)
15: #define WSETEXIT(w, status) ((w) = (status))
16: #define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8)))
17: #else
18: #include <sys/wait.h>
19: #define WAITTYPE union wait
20: #define WRETCODE(w) (w).w_retcode
21: #define WSTOPSIG(w) (w).w_stopsig
22: #define WCOREDUMP(w) (w).w_coredump
23: #define WTERMSIG(w) (w).w_termsig
24: #define WSETEXIT(w, status) ((w).w_status = (status))
25: #define WSETSTOP(w,sig) \
26: ((w).w_stopsig = (sig), (w).w_coredump = 0, (w).w_termsig = 0177)
27: #endif
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