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Annotation of 43BSD/lib/libc/vax/sys/wait3.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  */
        !             6: 
        !             7: #ifdef SYSLIBC_SCCS
        !             8: _sccsid:.asciz "@(#)wait3.c    5.3 (Berkeley) 3/9/86"
        !             9: #endif SYSLIBC_SCCS
        !            10: 
        !            11: /*     @(#)wait3.c     5.3     (Berkeley)      3/9/86  */
        !            12: 
        !            13: /*
        !            14:  * C library -- wait3
        !            15:  *
        !            16:  * pid = wait3(&status, flags, &rusage);
        !            17:  *
        !            18:  * pid == -1 if error
        !            19:  * status indicates fate of process, if given
        !            20:  * flags may indicate process is not to hang or
        !            21:  * that untraced stopped children are to be reported.
        !            22:  * rusage optionally returns detailed resource usage information
        !            23:  */
        !            24: #include "SYS.h"
        !            25: 
        !            26: #define        SYS_wait3       SYS_wait
        !            27: 
        !            28: ENTRY(wait3)
        !            29:        movl    8(ap),r0        /* make it easy for system to get */
        !            30:        movl    12(ap),r1       /* these extra arguments */
        !            31:        bispsw  $0xf            /* flags wait3() */
        !            32:        chmk    $SYS_wait3
        !            33:        bcc     noerror
        !            34:        movl    r0,_errno
        !            35:        mnegl   $1,r0
        !            36:        ret
        !            37: noerror:
        !            38:        tstl    4(ap)           /* status desired? */
        !            39:        beql    nostatus        /* no */
        !            40:        movl    r1,*4(ap)       /* store child's status */
        !            41: nostatus:
        !            42:        ret

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