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/* raise.c - Generic raise implementation.
Copyright (C) 2008-2022 Free Software Foundation, Inc.
This file is part of the GNU Hurd.
The GNU Hurd 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 3 of
the License, or (at your option) any later version.
The GNU Hurd 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 this program. If not, see
<https://www.gnu.org/licenses/>. */
#include <ldsodefs.h>
#include <pthreadP.h>
#include <signal.h>
#include <unistd.h>
#pragma weak __pthread_kill
#pragma weak __pthread_self
#pragma weak __pthread_threads
#ifndef SHARED
#pragma weak _dl_pthread_threads
#endif
int
raise (int signo)
{
/* According to POSIX, if we implement threads (and we do), then
"the effect of the raise() function shall be equivalent to
calling: pthread_kill(pthread_self(), sig);" */
if (__pthread_kill != NULL && GL (dl_pthread_threads) != NULL)
{
int err;
err = __pthread_kill (__pthread_self (), signo);
if (err)
{
errno = err;
return -1;
}
return 0;
}
else
return __kill (__getpid (), signo);
}
libc_hidden_def (raise)
weak_alias (raise, gsignal)
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