104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
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/*******************************************************************************
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* The BYTE UNIX Benchmarks - Release 1
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* Module: looper.c SID: 1.4 5/15/91 19:30:22
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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 or Tom Yager at BYTE Magazine
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* ben@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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*
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* February 25, 1991 -- created (Ben S.)
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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[] = "@(#) @(#)looper.c:1.4 -- 5/15/91 19:30:22";
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/*
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* Shell 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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char *cmd_argv[28];
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int cmd_argc;
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void report(int sig)
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{
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fprintf(stderr,"COUNT|%lu|60|lpm\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, count, duration;
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int status;
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if (argc < 2)
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{
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fprintf(stderr,"Usage: %s duration command [args..]\n", argv[0]);
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fprintf(stderr," duration in seconds\n");
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exit(1);
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}
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if((duration = atoi(argv[1])) < 1)
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{
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fprintf(stderr,"Usage: %s duration command [arg..]\n", argv[0]);
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fprintf(stderr," duration in seconds\n");
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exit(1);
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}
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/* get command */
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cmd_argc=argc-2;
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for( count=2;count < argc; ++count)
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cmd_argv[count-2]=argv[count];
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#ifdef DEBUG
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printf("<<%s>>",cmd_argv[0]);
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for(count=1;count < cmd_argc; ++count)
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printf(" <%s>", cmd_argv[count]);
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putchar('\n');
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exit(0);
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#endif
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iter = 0;
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wake_me(duration, report);
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while (1)
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{
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if ((slave = fork()) == 0)
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{ /* execute command */
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execvp(cmd_argv[0],cmd_argv);
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exit(99);
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}
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else if (slave < 0)
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{
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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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}
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else
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/* master */
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wait(&status);
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if (status == 99 << 8)
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{
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fprintf(stderr, "Command \"%s\" didn't exec\n", cmd_argv[0]);
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exit(2);
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}
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else if (status != 0)
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{
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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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}
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}
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