root/src/bb_signals.c

/**
 * bb_signals.c -> Part of Crules Programming language
 *
 * Crules is the legal property of its developers. Please refer to the
 * COPYRIGHT file distributed with this source distribution.
 *
 * 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/>.
 **/

#ifdef HAVE_CONFIG_H
# include "config.h"
#else
# define CMAKE 1
# include "config.h.cmake"
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>

#include <crules/crules.h>
#include <crules/opcodes.h>
#include <crules/symbols.h>
#include <crules/objects.h>
#include <crules/backend.h>
#include <crules/runtime.h>
#include <crules/garbage.h>
#include <crules/operators.h>


/*
  SIGHUP        Hangup  POSIX   
  SIGINT        Interrupt       ANSI
  SIGQUIT       Quit    POSIX
  SIGILL        Illegal instruction     ANSI
  SIGABRT       Abort   ANSI
  SIGTRAP       Trace trap      POSIX
  SIGIOT        IOT trap        4.2 BSD
  SIGEMT        EMT trap        4.2 BSD
  SIGFPE        Floating-point exception        ANSI
  SIGKILL       Kill, unblock-able      POSIX
  SIGBUS        Bus error       4.2 BSD
  SIGSEGV       Segmentation violation  ANSI
  SIGSYS        Bad argument to system call     4.2 BSD
  SIGPIPE       Broken pipe     POSIX
  SIGALRM       Alarm clock     POSIX
  SIGTERM       Termination     ANSI
  SIGUSR1       User-defined signal 1   POSIX
  SIGUSR2       User-defined signal 2   POSIX
  SIGCHLD       Child status has changed        POSIX
  SIGCLD        Same as SIGCHLD         System V
  SIGPWR        Power failure restart   System V
  SIGXCPU       Exceeded CPU time       POSIX
  SIGSTOP       Pause execution         POSIX
  SIGCONT       Resume execution        POSIX
*/

/**
 * Eventually need to have some kind of internal vtable
 * to handle signals from the programs perspective and
 * have decent POSIX behaviours
 **/
void crl_catch_signal( int signal )
{
  switch( signal )
    {
    case SIGINT: crl_fatal("Caught SIGINT exiting...\n");

    case SIGQUIT: crl_fatal("Caught SIGQUIT exiting...\n");

    case SIGTERM: crl_fatal("Caught SIGTERM exiting...\n");

    default:
      crl_fatal("Caught unhandled signal '%i' exiting...\n", signal);
    }
}