55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
|
|
* Copyright 2013 Steffen Vogel, Chair for Operating Systems,
|
|
* RWTH Aachen University
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is part of MetalSVM.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
printf("======== USER: test forking...\n");
|
|
|
|
int id = fork();
|
|
int ret = 0;
|
|
|
|
if (id < 0) {
|
|
perror(" PARENT: fork");
|
|
exit(-1);
|
|
}
|
|
else if (id == 0) {
|
|
printf(" CHILD: This is the child. My pid is %u\n", getpid());
|
|
printf(" CHILD: Running memtest...\n");
|
|
|
|
const char *argv[] = {"/bin/memtest", "512", "kb", "10", NULL};
|
|
execve(argv[0], argv, NULL);
|
|
perror(" CHILD: exec() returned: ");
|
|
ret = -1;
|
|
}
|
|
else {
|
|
printf(" PARENT: Here is the parent. My pid is %u\n", getpid());
|
|
|
|
wait(&ret);
|
|
printf(" PARENT: My child returned with code %i...\n", ret);
|
|
}
|
|
|
|
return ret;
|
|
}
|