mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/* A small multi-threaded test case.
|
|
|
|
Copyright 2004-2020 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
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 <pthread.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
void
|
|
cond_wait (pthread_cond_t *cond, pthread_mutex_t *mut)
|
|
{
|
|
pthread_mutex_lock(mut);
|
|
pthread_cond_wait (cond, mut);
|
|
pthread_mutex_unlock (mut);
|
|
}
|
|
|
|
void
|
|
noreturn (void)
|
|
{
|
|
pthread_mutex_t mut;
|
|
pthread_cond_t cond;
|
|
|
|
pthread_mutex_init (&mut, NULL);
|
|
pthread_cond_init (&cond, NULL);
|
|
|
|
/* Wait for a condition that will never be signaled, so we effectively
|
|
block the thread here. */
|
|
cond_wait (&cond, &mut);
|
|
}
|
|
|
|
void *
|
|
forever_pthread (void *unused)
|
|
{
|
|
noreturn ();
|
|
}
|
|
|
|
void
|
|
break_me (void)
|
|
{
|
|
/* Just an anchor to help putting a breakpoint. */
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
pthread_t forever;
|
|
|
|
pthread_create (&forever, NULL, forever_pthread, NULL);
|
|
for (;;)
|
|
{
|
|
sleep (2);
|
|
break_me();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|