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/*
* PARSEC - Error Handling Code
*
* $Author: uberlinuxguy $ - $Date: 2004/09/15 12:25:33 $
*
* Orginally written by:
* Copyright (c) Markus Hadwiger <msh@parsec.org> 1996-1999
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// compilation flags/debug support
#include "config.h"
// C library
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "debug.h"
// general definitions
#include "general.h"
#include "objstruc.h"
// global externals
#include "globals.h"
// subsystem headers
#include "aud_defs.h"
#include "inp_defs.h"
#include "net_defs.h"
#include "sys_defs.h"
#include "vid_defs.h"
// local module header
#include "inp_init.h"
#include "sl_err.h"
// SL_CleanUp() must be provided externally (currently by SL_MAIN.C) ----------
//
extern void SL_CleanUp();
#define CLEAN_UP(x) if ( init_done ) SL_CleanUp(); else {}
// flag if init already done --------------------------------------------------
//
static int init_done = FALSE;
// clean up functions that must be called in any case (if at all possible) ----
//
void SYSs_CriticalCleanUp()
{
//NOTE:
// this function is not declared in any header,
// since it is only used by DEBUG.C, which
// contains a prototype in order to call
// SYSs_CriticalCleanUp().
int static was_here = FALSE;
if ( !was_here ) {
was_here = TRUE;
// kill networking system;
// must not be done after SYSs_KillFrameTimer()
NETs_KillAPI();
// kill input code
INP_KillSubsystem();
// switch back to text mode
VIDs_RestoreDisplay();
// kill sound system
AUDs_KillSoundSys();
// kill timer code
SYSs_KillFrameTimer();
}
}
// common error strings -------------------------------------------------------
//
static char err_exit[] = "Parsec error exit";
static char err_emem[] = "Parsec memory error exit";
static char err_ndef[] = "Unrecoverable error";
static char err_nmem[] = "Memory allocation failed";
static char err_msg1[] = "\n%s: %s";
static char err_msg2[] = "\n%s: %s (%s, line %u).";
// exit function if critical error occurred -----------------------------------
//
void SYSs_PanicFunction( const char *msg, const char *file, unsigned line )
{
// switch back to text mode
VIDs_RestoreDisplay();
// print error message
if ( ( msg != NULL ) && ( *msg != 0 ) ) {
// print custom message if provided and not empty
fprintf( stderr, err_msg1, err_exit, msg );
} else if ( ( msg != NULL ) && ( errno > 0 ) ) {
// print errno error if provided message is empty
fprintf( stderr, err_msg2, err_exit, strerror( errno ), file, line );
} else {
// print generic error message if no message provided
fprintf( stderr, err_msg2, err_exit, err_ndef, file, line );
}
fprintf( stderr, "\n" );
// just to be sure
fflush( stderr );
CLEAN_UP(0);
exit( EXIT_FAILURE );
}
// exit function if memory allocation failed ----------------------------------
//
void SYSs_OutOfMemFunction( const char *msg, const char *file, unsigned line )
{
// switch back to text mode
VIDs_RestoreDisplay();
// print error message
if ( ( msg != NULL ) && ( *msg != 0 ) ) {
// print custom message if provided and not empty
fprintf( stderr, err_msg1, err_emem, msg );
} else if ( ( msg != NULL ) && ( errno > 0 ) ) {
// print errno error if provided message is empty
fprintf( stderr, err_msg2, err_emem, strerror( errno ), file, line );
} else {
// print generic error message if no message provided
fprintf( stderr, err_msg2, err_emem, err_nmem, file, line );
}
fprintf( stderr, "\n" );
// just to be sure
fflush( stderr );
CLEAN_UP(0);
exit( EXIT_FAILURE );
}
// prints error message and exits ---------------------------------------------
//
void SYSs_PError( const char *message, ... )
{
va_list ap;
va_start( ap, message );
// switch back to text mode
VIDs_RestoreDisplay();
// print custom message if provided
if ( message != NULL ) {
fprintf ( stderr, "\n%s: ", sys_ProgramName );
vfprintf( stderr, message, ap );
fprintf ( stderr, "\n" );
} else {
fprintf( stderr, "\n%s: SYSs_PError().\n", sys_ProgramName );
}
fflush( stderr );
va_end( ap );
CLEAN_UP(0);
exit( EXIT_FAILURE );
}
// prints error message and string for errno and exits ------------------------
//
void SYSs_SError( const char *message )
{
// switch back to text mode
VIDs_RestoreDisplay();
// print custom message if provided
if ( message != NULL ) {
fprintf( stderr, "\n%s: ", sys_ProgramName );
fprintf( stderr, "%s", message );
fprintf( stderr, ": %s\n", strerror( errno ) );
} else {
fprintf( stderr, "\n%s: SYSs_SError().\n", sys_ProgramName );
}
fflush( stderr );
CLEAN_UP(0);
exit( EXIT_FAILURE );
}
// prints error message, filename, string for errno, and exits ----------------
//
void SYSs_FError( const char *message, const char *filename )
{
// switch back to text mode
VIDs_RestoreDisplay();
// print custom message if provided
if ( ( message != NULL ) && ( filename != NULL ) ) {
fprintf( stderr, "\n%s: ", sys_ProgramName );
fprintf( stderr, message, filename );
fprintf( stderr, ": %s\n", strerror( errno ) );
} else {
fprintf( stderr, "\n%s: SYSs_FError().\n", sys_ProgramName );
}
fflush( stderr );
CLEAN_UP(0);
exit( EXIT_FAILURE );
}
// init error handling code ---------------------------------------------------
//
void SYSs_InitErrorHandling()
{
ASSERT( !init_done );
if ( !init_done ) {
init_done = TRUE;
}
}
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