/* Provide a non-threads replacement for the POSIX raise function.

   Copyright (C) 2002-2003, 2005-2006, 2009-2017 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* written by Jim Meyering and Bruno Haible */

#include <config.h>

/* Specification.  */

#include <signal.h>

#if HAVE_RAISE

/* Native Windows platform.  */

# include <errno.h>

# if HAVE_MSVC_INVALID_PARAMETER_HANDLER

#  include "msvc-inval.h"

# endif

# undef raise

# if HAVE_MSVC_INVALID_PARAMETER_HANDLER

static int

raise_nothrow (int sig)

{

  int result;

  TRY_MSVC_INVAL

    {

      result = raise (sig);

    }

  CATCH_MSVC_INVAL

    {

      result = -1;

      errno = EINVAL;

    }

  DONE_MSVC_INVAL;

  return result;

}

# else

#  define raise_nothrow raise

# endif

#else

/* An old Unix platform.  */

# include <unistd.h>

# define rpl_raise raise

#endif

int

rpl_raise (int sig)

{

#if GNULIB_defined_signal_blocking && GNULIB_defined_SIGPIPE

  if (sig == SIGPIPE)

    return _gl_raise_SIGPIPE ();

#endif

#if HAVE_RAISE

  return raise_nothrow (sig);

#else

  return kill (getpid (), sig);

#endif

}