beetle-pce-fast-libretro/mednafen/error.cpp
2012-11-15 18:35:26 +01:00

125 lines
2.7 KiB
C++

/* Mednafen - Multi-system Emulator
*
* 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
*/
#include "mednafen.h"
#include "error.h"
#include <string.h>
#include <stdarg.h>
#include <trio/trio.h>
MDFN_Error::MDFN_Error() throw()
{
abort();
}
MDFN_Error::MDFN_Error(int errno_code_new, const char *format, ...) throw()
{
errno_code = errno_code_new;
va_list ap;
va_start(ap, format);
error_message = trio_vaprintf(format, ap);
va_end(ap);
}
MDFN_Error::MDFN_Error(const ErrnoHolder &enh)
{
errno_code = enh.Errno();
error_message = trio_aprintf("%s", enh.StrError());
}
MDFN_Error::~MDFN_Error() throw()
{
if(error_message)
{
free(error_message);
error_message = NULL;
}
}
MDFN_Error::MDFN_Error(const MDFN_Error &ze_error) throw()
{
if(ze_error.error_message)
error_message = strdup(ze_error.error_message);
else
error_message = NULL;
errno_code = ze_error.errno_code;
}
MDFN_Error& MDFN_Error::operator=(const MDFN_Error &ze_error) throw()
{
char *new_error_message = ze_error.error_message ? strdup(ze_error.error_message) : NULL;
int new_errno_code = ze_error.errno_code;
if(error_message)
free(error_message);
error_message = new_error_message;
errno_code = new_errno_code;
return(*this);
}
const char * MDFN_Error::what(void) const throw()
{
if(!error_message)
return("Error allocating memory for the error message!");
return(error_message);
}
int MDFN_Error::GetErrno(void) const throw()
{
return(errno_code);
}
static const char *srr_wrap(int ret, const char *local_strerror)
{
if(ret == -1)
return("ERROR IN strerror_r()!!!");
return(local_strerror);
}
static const char *srr_wrap(const char *ret, const char *local_strerror)
{
if(ret == NULL)
return("ERROR IN strerror_r()!!!");
return(ret);
}
void ErrnoHolder::SetErrno(int the_errno)
{
local_errno = the_errno;
if(the_errno == 0)
local_strerror[0] = 0;
else
{
strncpy(local_strerror, strerror(the_errno), 255);
local_strerror[255] = 0;
}
}