84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* This testcase is part of GDB, the GNU debugger.
|
|
|
|
Copyright 2015-2016 Free Software Foundation, Inc.
|
|
|
|
This program 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
int save_parent;
|
|
|
|
/* The fork child. Just runs forever. */
|
|
|
|
static int
|
|
fork_child (void)
|
|
{
|
|
while (1)
|
|
{
|
|
sleep (1);
|
|
|
|
/* Exit if GDB kills the parent. */
|
|
if (getppid () != save_parent)
|
|
break;
|
|
if (kill (getppid (), 0) != 0)
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* The fork parent. Just runs forever waiting for the child to
|
|
exit. */
|
|
|
|
static int
|
|
fork_parent (void)
|
|
{
|
|
if (wait (NULL) == -1)
|
|
{
|
|
perror ("wait");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
pid_t pid;
|
|
|
|
save_parent = getpid ();
|
|
|
|
/* Don't run forever. */
|
|
alarm (180);
|
|
|
|
/* The parent and child should basically run forever without
|
|
tripping on any debug event. We want to check that GDB updates
|
|
the parent and child running states correctly right after the
|
|
fork. */
|
|
pid = fork ();
|
|
if (pid > 0)
|
|
return fork_parent ();
|
|
else if (pid == 0)
|
|
return fork_child ();
|
|
else
|
|
{
|
|
perror ("fork");
|
|
return 1;
|
|
}
|
|
}
|