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/*
* This file is part of the Advance project.
*
* Copyright (C) 1999, 2000, 2001, 2002, 2003 Andrea Mazzoleni
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* In addition, as a special exception, Andrea Mazzoleni
* gives permission to link the code of this program with
* the MAME library (or with modified versions of MAME that use the
* same license as MAME), and distribute linked combinations including
* the two. You must obey the GNU General Public License in all
* respects for all of the code used other than MAME. If you modify
* this file, you may extend this exception to your version of the
* file, but you are not obligated to do so. If you do not wish to
* do so, delete this exception statement from your version.
*/
#include "portable.h"
#include "extra.h"
#ifndef USE_ERROR_SILENT
#include "log.h"
#endif
#include "error.h"
#include "snstring.h"
/****************************************************************************/
/* Error */
/**
* Max length of the error description.
*/
#define ERROR_DESC_MAX 2048
/**
* Last error description.
*/
static char error_desc_buffer[ERROR_DESC_MAX];
/**
* Flag set if an unsupported feature is found.
*/
static adv_bool error_unsupported_flag;
/**
* Flag for cat mode.
*/
static adv_bool error_cat_flag;
/**
* Prefix for cat mode.
*/
static char error_cat_prefix_buffer[ERROR_DESC_MAX];
/**
* Set the error cat mode.
* If enabled the error text is appended at the end of the previous error.
*/
void error_cat_set(const char* prefix, adv_bool mode)
{
if (prefix)
sncpy(error_cat_prefix_buffer, sizeof(error_cat_prefix_buffer), prefix);
else
error_cat_prefix_buffer[0] = 0;
error_cat_flag = mode;
}
/**
* Get the current error description.
*/
const char* error_get(void)
{
/* remove the trailing \n */
while (error_desc_buffer[0] && isspace(error_desc_buffer[strlen(error_desc_buffer)-1]))
error_desc_buffer[strlen(error_desc_buffer)-1] = 0;
return error_desc_buffer;
}
/**
* Reset the description of the last error.
*/
void error_reset(void)
{
error_unsupported_flag = 0;
error_desc_buffer[0] = 0;
}
/**
* Set the description of the last error.
* The previous description is overwritten.
* \note The description IS logged.
*/
void error_set(const char* text, ...)
{
va_list arg;
char* p;
unsigned size;
error_unsupported_flag = 0;
if (error_cat_flag) {
if (error_cat_prefix_buffer[0]) {
sncat(error_desc_buffer, sizeof(error_desc_buffer), error_cat_prefix_buffer);
sncat(error_desc_buffer, sizeof(error_desc_buffer), ": ");
}
p = error_desc_buffer + strlen(error_desc_buffer);
size = sizeof(error_desc_buffer) - strlen(error_desc_buffer);
} else {
p = error_desc_buffer;
size = sizeof(error_desc_buffer);
}
va_start(arg, text);
vsnprintf(p, size, text, arg);
#ifndef USE_ERROR_SILENT
log_std(("advance:msg:"));
if (error_cat_flag && error_cat_prefix_buffer[0]) {
log_std(("%s:", error_cat_prefix_buffer));
}
log_std((" "));
log_va(text, arg);
if (!text[0] || text[strlen(text)-1] != '\n')
log_std(("\n"));
#endif
va_end(arg);
}
/**
* Set the description of the last error due unsupported feature.
* \note The description IS logged.
*/
void error_unsupported_set(const char* text, ...)
{
va_list arg;
error_unsupported_flag = 1;
va_start(arg, text);
vsnprintf(error_desc_buffer, sizeof(error_desc_buffer), text, arg);
#ifndef USE_ERROR_SILENT
log_std(("advance: set_error_description \""));
log_va(text, arg);
log_std(("\"\n"));
#endif
va_end(arg);
}
/**
* Check if a unsupported feature is found.
* This function can be called only if another function returns with error.
* \return
* - ==0 Not found.
* - !=0 Unsupported feature found.
*/
adv_bool error_unsupported_get(void)
{
return error_unsupported_flag;
}
#ifndef USE_ERROR_SILENT
/**
* Set the error description.
* The previous description is overwritten.
* The description is not logged.
*/
void error_nolog_set(const char* text, ...)
{
va_list arg;
char* p;
unsigned size;
error_unsupported_flag = 0;
if (error_cat_flag) {
if (error_cat_prefix_buffer[0]) {
sncat(error_desc_buffer, sizeof(error_desc_buffer), error_cat_prefix_buffer);
sncat(error_desc_buffer, sizeof(error_desc_buffer), ": ");
}
p = error_desc_buffer + strlen(error_desc_buffer);
size = sizeof(error_desc_buffer) - strlen(error_desc_buffer);
} else {
p = error_desc_buffer;
size = sizeof(error_desc_buffer);
}
va_start(arg, text);
vsnprintf(p, size, text, arg);
va_end(arg);
}
#endif
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