glibc/sysdeps/pthread/tst-fork3.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

109 lines
2.3 KiB
C

/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Roland McGrath <roland@redhat.com>, 2002.
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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
static pid_t initial_pid;
static void *
tf2 (void *arg)
{
if (getppid () != initial_pid)
{
printf ("getppid in thread returned %ld, expected %ld\n",
(long int) getppid (), (long int) initial_pid);
return (void *) -1;
}
return NULL;
}
static void *
tf1 (void *arg)
{
pid_t child = fork ();
if (child == 0)
{
if (getppid () != initial_pid)
{
printf ("first getppid returned %ld, expected %ld\n",
(long int) getppid (), (long int) initial_pid);
exit (1);
}
pthread_t th2;
if (pthread_create (&th2, NULL, tf2, NULL) != 0)
{
puts ("child: pthread_create failed");
exit (1);
}
void *result;
if (pthread_join (th2, &result) != 0)
{
puts ("pthread_join failed");
exit (1);
}
exit (result == NULL ? 0 : 1);
}
else if (child == -1)
{
puts ("initial fork failed");
exit (1);
}
int status;
if (TEMP_FAILURE_RETRY (waitpid (child, &status, 0)) != child)
{
printf ("waitpid failed: %m\n");
exit (1);
}
exit (status);
}
static int
do_test (void)
{
initial_pid = getpid ();
pthread_t th1;
if (pthread_create (&th1, NULL, tf1, NULL) != 0)
{
puts ("parent: pthread_create failed");
exit (1);
}
/* This call should never return. */
pthread_join (th1, NULL);
return 1;
}
#include <support/test-driver.c>