glibc/support/support_isolate_in_subprocess.c

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/* Run a function in a subprocess.
Copyright (C) 2017-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <support/check.h>
#include <support/xunistd.h>
void
support_isolate_in_subprocess (void (*callback) (void *), void *closure)
{
pid_t pid = xfork ();
if (pid == 0)
{
/* Child process. */
callback (closure);
_exit (0);
}
/* Parent process. */
int status;
xwaitpid (pid, &status, 0);
if (status != 0)
FAIL_EXIT1 ("child process exited with status %d", status);
}