| /* Copyright (C) 1997, 2001 Free Software Foundation, Inc. |
| This file is part of GNU Fortran libU77 library. |
| |
| This library is free software; you can redistribute it and/or modify it |
| under the terms of the GNU Library General Public License as published |
| by the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| GNU Fortran 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 |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with GNU Fortran; see the file COPYING.LIB. If |
| not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #if HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| |
| #include <errno.h> /* for ENOSYS */ |
| #include "f2c.h" |
| |
| #ifndef RETSIGTYPE |
| /* we shouldn't rely on this... */ |
| #define RETSIGTYPE void |
| #endif |
| typedef RETSIGTYPE (*sig_type) (); |
| |
| #include <signal.h> |
| typedef int (*sig_proc) (int); |
| |
| #ifndef SIG_ERR |
| #define SIG_ERR ((sig_type) -1) |
| #endif |
| |
| integer |
| G77_alarm_0 (integer * seconds, sig_proc proc) |
| { |
| int status; |
| #if defined (HAVE_ALARM) && defined (SIGALRM) |
| if (signal (SIGALRM, (sig_type) proc) == SIG_ERR) |
| status = -1; |
| else |
| status = alarm (*seconds); |
| #else /* ! HAVE_ALARM || ! SIGALRM */ |
| errno = ENOSYS; |
| status = -1; |
| #endif |
| return status; |
| } |