mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-29 08:11:08 +00:00
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/* Cancel a thread.
|
|
Copyright (C) 2002-2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthread.h>
|
|
#include <hurd/signal.h>
|
|
|
|
#include <pt-internal.h>
|
|
#include <pthreadP.h>
|
|
|
|
static void
|
|
call_exit (void)
|
|
{
|
|
__pthread_exit (0);
|
|
}
|
|
|
|
int
|
|
__pthread_do_cancel (struct __pthread *p)
|
|
{
|
|
mach_port_t ktid;
|
|
int me;
|
|
|
|
assert (p->cancel_pending == 1);
|
|
assert (p->cancel_state == PTHREAD_CANCEL_ENABLE);
|
|
|
|
__pthread_mutex_unlock (&p->cancel_lock);
|
|
|
|
ktid = __mach_thread_self ();
|
|
me = p->kernel_thread == ktid;
|
|
__mach_port_deallocate (__mach_task_self (), ktid);
|
|
|
|
if (me)
|
|
call_exit ();
|
|
else
|
|
{
|
|
error_t err;
|
|
struct hurd_sigstate *ss = _hurd_thread_sigstate (p->kernel_thread);
|
|
|
|
__spin_lock (&ss->critical_section_lock);
|
|
__spin_lock (&ss->lock);
|
|
|
|
err = __thread_suspend (p->kernel_thread);
|
|
assert_perror (err);
|
|
|
|
__spin_unlock (&ss->lock);
|
|
|
|
err = __thread_abort (p->kernel_thread);
|
|
assert_perror (err);
|
|
|
|
err = __thread_set_pcsptp (p->kernel_thread,
|
|
1, (void *) call_exit, 0, 0, 0, 0);
|
|
assert_perror (err);
|
|
|
|
err = __thread_resume (p->kernel_thread);
|
|
assert_perror (err);
|
|
|
|
_hurd_critical_section_unlock (ss);
|
|
}
|
|
|
|
return 0;
|
|
}
|