79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*******************************************************************************
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* The BYTE UNIX Benchmarks - Release 3
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* Module: spawn.c SID: 3.3 5/15/91 19:30:20
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*
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*******************************************************************************
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* Bug reports, patches, comments, suggestions should be sent to:
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*
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* Ben Smith, Rick Grehan or Tom Yagerat BYTE Magazine
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* ben@bytepb.byte.com rick_g@bytepb.byte.com tyager@bytepb.byte.com
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*
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*******************************************************************************
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* Modification Log:
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* $Header: spawn.c,v 3.4 87/06/22 14:32:48 kjmcdonell Beta $
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* August 29, 1990 - Modified timing routines (ty)
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* October 22, 1997 - code cleanup to remove ANSI C compiler warnings
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* Andy Kahn <kahn@zk3.dec.com>
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*
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******************************************************************************/
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char SCCSid[] = "@(#) @(#)spawn.c:3.3 -- 5/15/91 19:30:20";
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/*
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* Process creation
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/wait.h>
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#include "timeit.c"
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unsigned long iter;
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void report(int sig)
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{
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fprintf(stderr,"COUNT|%lu|1|lps\n", iter);
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exit(0);
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}
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int main(int argc, char *argv[])
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{
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int slave, duration;
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int status;
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if (argc != 2) {
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fprintf(stderr,"Usage: %s duration \n", argv[0]);
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exit(1);
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}
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duration = atoi(argv[1]);
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iter = 0;
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wake_me(duration, report);
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while (1) {
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if ((slave = fork()) == 0) {
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/* slave .. boring */
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#if debug
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printf("fork OK\n");
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#endif
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/* kill it right away */
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exit(0);
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} else if (slave < 0) {
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/* woops ... */
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fprintf(stderr,"Fork failed at iteration %lu\n", iter);
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perror("Reason");
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exit(2);
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} else
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/* master */
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wait(&status);
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if (status != 0) {
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fprintf(stderr,"Bad wait status: 0x%x\n", status);
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exit(2);
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}
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iter++;
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#if debug
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printf("Child %d done.\n", slave);
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#endif
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}
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}
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