mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/* Copyright (C) 1994-2024 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 <hurd.h>
|
|
#include <hurd/signal.h>
|
|
#include <hurd/msg.h>
|
|
#include <setjmp.h>
|
|
|
|
/* Handle signal SIGNO in the calling thread.
|
|
If SS is not NULL it is the sigstate for the calling thread;
|
|
SS->lock is held on entry and released before return. */
|
|
|
|
int
|
|
_hurd_raise_signal (struct hurd_sigstate *ss,
|
|
int signo, const struct hurd_signal_detail *detail)
|
|
{
|
|
if (signo <= 0 || signo >= NSIG)
|
|
{
|
|
if (ss)
|
|
__spin_unlock (&ss->lock);
|
|
return EINVAL;
|
|
}
|
|
|
|
if (ss == NULL)
|
|
{
|
|
ss = _hurd_self_sigstate ();
|
|
__spin_lock (&ss->lock);
|
|
}
|
|
|
|
/* Mark SIGNO as pending to be delivered. */
|
|
__sigaddset (&ss->pending, signo);
|
|
ss->pending_data[signo] = *detail;
|
|
|
|
__spin_unlock (&ss->lock);
|
|
|
|
/* Send a message to the signal thread so it will wake up and check for
|
|
pending signals. This is a generic "poll request" message (SIGNO==0)
|
|
rather than delivering this signal and its detail, because we have
|
|
already marked the signal as pending for the particular thread we
|
|
want. Generating the signal with an RPC might deliver it to some
|
|
other thread. */
|
|
return __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ());
|
|
}
|
|
libc_hidden_def (_hurd_raise_signal)
|