gambas-source-code/main/lib/eval/gb_error.c

128 lines
2.5 KiB
C
Raw Normal View History

/***************************************************************************
error.c
Errors management routines
(c) 2000-2007 Benoit Minisini <gambas@users.sourceforge.net>
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 1, 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.
***************************************************************************/
#define __GB_ERROR_C
#include "main.h"
#include "gb_common.h"
#include <stdarg.h>
#include "gb_error.h"
ERROR_CONTEXT *ERROR_current = NULL;
PUBLIC void ERROR_clear(void)
{
errno = 0;
}
void ERROR_reset(ERROR_INFO *info)
{
info->code = 0;
if (info->free)
{
GB.FreeString(&info->msg);
info->free = FALSE;
}
else
info->msg = NULL;
//DEBUG_free_backtrace(&info->backtrace);
}
void ERROR_enter(ERROR_CONTEXT *err)
{
CLEAR(err);
err->prev = ERROR_current;
ERROR_current = err;
}
void ERROR_leave(ERROR_CONTEXT *err)
{
if (err->prev == ERROR_LEAVE_DONE)
return;
ERROR_current = err->prev;
if (ERROR_current)
{
ERROR_reset(&ERROR_current->info);
ERROR_current->info = err->info;
}
err->prev = ERROR_LEAVE_DONE;
}
void ERROR_propagate()
{
if (ERROR_current->ret)
ERROR_leave(ERROR_current);
longjmp(ERROR_current->env, 1);
}
PUBLIC char *ERROR_get(void)
{
/*
if (code > 0 && code < 256)
return strerror(code);
else
return ERROR_Message[code - 256];
*/
return strerror(errno);
}
PUBLIC void THROW(const char *msg)
{
GB.Error("&1", (char *)msg);
ERROR_propagate();
}
PUBLIC void THROW2(const char *pattern, const char *msg)
{
GB.Error((char *)pattern, (char *)msg);
ERROR_propagate();
}
void ERROR_panic(const char *error, ...)
{
va_list args;
va_start(args, error);
fflush(NULL);
fprintf(stderr, "\n** INTERNAL ERROR **\n**");
vfprintf(stderr, error, args);
putc('\n', stderr);
if (ERROR_current->info.code)
{
ERROR_print();
}
fprintf(stderr, "** Program aborting. Sorry! :-(\n");
/*abort();*/
_exit(1);
}