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43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* wait.h - header file for remote wait call */
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/*
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modification history
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--------------------
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01a,05jun90,llk borrowed.
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*/
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/* Define how to access the structure that the wait system call stores.
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On many systems, there is a structure defined for this.
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But on vanilla-ish USG systems there is not. */
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#ifndef HAVE_WAIT_STRUCT
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#define WAITTYPE int
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#define WIFSTOPPED(w) (((w)&0377) == 0177)
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#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
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#define WIFEXITED(w) (((w)&0377) == 0)
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#define WRETCODE(w) ((w) >> 8)
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#define WSTOPSIG(w) ((w) >> 8)
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#define WCOREDUMP(w) (((w)&0200) != 0)
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#define WTERMSIG(w) ((w) & 0177)
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#define WSETEXIT(w, status) ((w) = (status))
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#define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8)))
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#else
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#if FALSE
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#ifndef ORIG
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/* don't include sys/wait.h */
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#else ORIG
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#include <sys/wait.h>
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#endif ORIG
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#endif FALSE
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#define WAITTYPE union wait
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#define WRETCODE(w) (w).w_retcode
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#define WSTOPSIG(w) (w).w_stopsig
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#define WCOREDUMP(w) (w).w_coredump
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#define WTERMSIG(w) (w).w_termsig
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#define WSETEXIT(w, status) ((w).w_status = (status))
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#define WSETSTOP(w,sig) \
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((w).w_stopsig = (sig), (w).w_coredump = 0, (w).w_termsig = 0177)
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#endif
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