minix/test/test13.c
Ben Gras 5977114c42 tests cleanup
. make common.o link with the tests instead of being
	  #included as common.c
	. fix warnings about missing prototypes by declaring functions
	  static
	. reduces some duplicated code

Change-Id: Ic2a765d7f5886add5863190efec3fdd2d2ea2137
2013-04-17 22:00:59 +00:00

56 lines
946 B
C

/* test 13 */
/* File: pipes.c - created by Marty Leisner */
/* Leisner.Henr 1-Dec-87 8:55:04 */
/* Copyright (C) 1987 by Martin Leisner. All rights reserved. */
/* Used by permission. */
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#define BLOCK_SIZE 1000
#define NUM_BLOCKS 1000
char buffer[BLOCK_SIZE];
int max_error = 2;
#include "common.h"
int main(void);
void quit(void);
int main()
{
int stat_loc, pipefd[2];
register int i;
start(13);
pipe(pipefd);
switch (fork()) {
case 0:
/* Child code */
for (i = 0; i < NUM_BLOCKS; i++)
if (read(pipefd[0], buffer, BLOCK_SIZE) != BLOCK_SIZE) break;
exit(0);
case -1:
perror("fork broke");
exit(1);
default:
/* Parent code */
for (i = 0; i < NUM_BLOCKS; i++) write(pipefd[1], buffer, BLOCK_SIZE);
wait(&stat_loc);
break;
}
quit();
return(-1); /* impossible */
}