1/* pthread_kill. Hurd version.
2 Copyright (C) 2002-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <pthread.h>
20#include <assert.h>
21#include <signal.h>
22#include <hurd/signal.h>
23
24#include <pt-internal.h>
25
26int
27__pthread_kill (pthread_t thread, int sig)
28{
29 struct __pthread *pthread;
30 struct hurd_signal_detail detail;
31 struct hurd_sigstate *ss;
32
33 /* Lookup the thread structure for THREAD. */
34 pthread = __pthread_getid (thread);
35 if (pthread == NULL)
36 return ESRCH;
37
38 if (pthread->kernel_thread == MACH_PORT_DEAD)
39 /* The pthread ID is still valid but we cannot send a signal any more. */
40 return 0;
41
42 ss = _hurd_thread_sigstate (pthread->kernel_thread);
43 assert (ss);
44
45 if (sig == 0)
46 return 0;
47
48 detail.exc = 0;
49 detail.code = sig;
50 detail.error = 0;
51
52 __spin_lock (&ss->lock);
53 return _hurd_raise_signal (ss, sig, &detail);
54}
55strong_alias (__pthread_kill, pthread_kill)
56

source code of glibc/sysdeps/hurd/htl/pt-kill.c