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/*
This file is part of GNUnet
(C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file contrib/timeout_watchdog.c
* @brief small tool starting a child process, waiting that it terminates or killing it after a given timeout period
* @author Matthias Wachs
*/
#include "signal.h"
#include "stdio.h"
#include "stdlib.h"
#include <unistd.h>
#include <wait.h>
static int child_died;
static pid_t child;
void sigchld_handler(int val)
{
int status = 0;
int ret = 0;
waitpid (child, &status, 0);
if (WIFEXITED(status) == 1)
{
ret = WEXITSTATUS(status);
printf("Test process exited with result %u\n", ret);
}
if (WIFSIGNALED(status) == 1)
{
printf("Test process was signaled %u\n", WTERMSIG(status));
}
exit(ret);
}
void sigint_handler(int val)
{
printf("Killing test process\n");
kill(0, SIGINT);
exit(0);
}
int main(int argc, char *argv[])
{
int timeout = 0;
int remain = 0;
int ret = 0;
if (argc < 3)
{
printf("arg 1: timeout in sec., arg 2: executable, arg<n> arguments\n");
exit(1);
}
timeout = atoi(argv[1]);
if (timeout == 0)
timeout = 600;
char ** arguments = &argv[3];
pid_t gpid = getpgid(0);
child = fork();
if (child > 0)
{
signal(SIGCHLD, sigchld_handler);
signal(SIGINT, sigint_handler);
}
for (;;)
{
if (child==0)
{
printf("Starting test process `%s'\n",argv[2],arguments);
setpgid(0,gpid);
execvp(argv[2],&argv[2]);
printf("Test process `%s' could not be started\n",argv[1]);
exit(1);
}
if (child > 0)
{
sleep(1);
remain++;
if (timeout == remain)
{
printf("Timeout, killing all test processes\n");
kill(0,SIGABRT);
exit(1);
}
}
}
}
/* end of timeout_watchdog.c */
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