error.c

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/*
 * luau (Lib Update/Auto-Update): Simple Update Library
 * Copyright (C) 2003  David Eklund
 *
 * - This library 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 2.1 of the License, or (at your option) any later version.        -
 * -                                                                           -
 * - This library 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 library; 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

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>

#include <glib.h>

#include "util.h"
#include "error.h"

#ifdef WITH_DMALLOC
#  include <dmalloc.h>
#endif


static void defaultErrorFunc(const char* string, const char* filename, const char* function, int lineno);
static int defaultPromptFunc(const char * title, const char* msg, int nTotal, int nDefault, const char *choice1, va_list args);

static UErrorFunc  errorFunc_global  = defaultErrorFunc;
static UPromptFunc promptFunc_global = defaultPromptFunc;

void
lutil_error_setErrorFunc(UErrorFunc errorFunc) {
        errorFunc_global = errorFunc;
}

void
lutil_error_setPromptFunc(UPromptFunc promptFunc) {
        promptFunc_global = promptFunc;
}

void
lutil_error_resetErrorFunc(void) {
        errorFunc_global = defaultErrorFunc;
}

void
lutil_error_resetPromptFunc(void) {
        promptFunc_global = defaultPromptFunc;
}

void
lutil_error_fatal(const char* string, const char* filename, const char* function, int lineno) {
        fprintf(stderr, "***FATAL***\n");
        fprintf(stderr, "%s\n", string);
        exit(1);
}

int
lutil_error_prompt(const char* title, const char* msg, int nTotal, int nDefault, const char *choice1, ...) {
        va_list ap;
        int result;
        
        va_start(ap, choice1);
        result = promptFunc_global(title, msg, nTotal, nDefault, choice1, ap);
        va_end(ap);
        
        return result;
}

void
lutil_error(const char* filename, const char* function, int lineno, const char* template, ...) {
        va_list ap;
        char* str;
        
        va_start (ap, template);
        str = lutil_valistToString(template, ap);
        va_end (ap);
        
        errorFunc_global(str, filename, function, lineno);
        
        g_free(str);
}


/* Non-Interface Methods */

static void
defaultErrorFunc(const char* string, const char* filename, const char* function, int lineno) {
        fprintf(stderr, "*** ERROR ***\n");
        fprintf(stderr, "luau: %s: %s: %s\n", filename, function, string);
}

static int
defaultPromptFunc(const char * title, const char* msg, int nTotal, int nDefault, const char *choice1, va_list args) {
        return nDefault; /* don't prompt; just use the default */
}

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