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Annotation of researchv10no/cmd/spitbol/oswait.c, revision 1.1

1.1     ! root        1: /*
        !             2:        oswait( pid ) waits for the termination of the process with
        !             3:        id pid.
        !             4: */
        !             5: 
        !             6: #include "spitblks.h"
        !             7: #include "spitio.h"
        !             8: #include <signal.h>
        !             9: 
        !            10: oswait( pid )
        !            11: 
        !            12: int    pid;
        !            13: 
        !            14: {
        !            15:        int     deadpid, status;
        !            16:        register (*hstat)(), (*istat)(), (*qstat)();
        !            17:        extern  struct  chfcb   *rzfcb;
        !            18:        struct  chfcb   *chptr;
        !            19: 
        !            20:        istat   = signal( SIGINT,SIG_IGN );
        !            21:        qstat   = signal( SIGQUIT,SIG_IGN );
        !            22:        hstat   = signal( SIGHUP,SIG_IGN );
        !            23:        
        !            24:        while ( (deadpid = wait( &status )) != pid  && 
        !            25:                (deadpid != -1) ) {
        !            26:                for ( chptr = rzfcb; chptr != 0; chptr = chptr -> nxt ) {
        !            27:                        if ( deadpid == chptr -> fcb -> iob -> pid ) {
        !            28:                                chptr -> fcb -> iob -> flg |= IO_DED;
        !            29:                                break;
        !            30:                        }
        !            31:                }
        !            32:        }
        !            33: 
        !            34:        signal( SIGINT,istat );
        !            35:        signal( SIGQUIT,qstat );
        !            36:        signal( SIGHUP,hstat );
        !            37: 
        !            38:        return status;
        !            39: }

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