/* raise.c - Generic raise implementation.

   Copyright (C) 2008-2018 Free Software Foundation, Inc.

   Written by Neal H. Walfield <neal@gnu.org>.

   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

   <http://www.gnu.org/licenses/>.  */

#include <pthreadP.h>

#include <signal.h>

#include <unistd.h>

#pragma weak __pthread_kill

#pragma weak __pthread_self

#pragma weak __pthread_threads

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 && __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)