glibc/sysdeps/hurd/htl/pt-kill.c

56 lines
1.6 KiB
C

/* pthread_kill. Hurd version.
Copyright (C) 2002-2024 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 <assert.h>
#include <signal.h>
#include <hurd/signal.h>
#include <pt-internal.h>
int
__pthread_kill (pthread_t thread, int sig)
{
struct __pthread *pthread;
struct hurd_signal_detail detail;
struct hurd_sigstate *ss;
/* Lookup the thread structure for THREAD. */
pthread = __pthread_getid (thread);
if (pthread == NULL)
return ESRCH;
if (pthread->kernel_thread == MACH_PORT_DEAD)
/* The pthread ID is still valid but we cannot send a signal any more. */
return 0;
ss = _hurd_thread_sigstate (pthread->kernel_thread);
assert (ss);
if (sig == 0)
return 0;
detail.exc = 0;
detail.code = sig;
detail.error = 0;
__spin_lock (&ss->lock);
return _hurd_raise_signal (ss, sig, &detail);
}
strong_alias (__pthread_kill, pthread_kill)