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/* $Id: error.c,v 1.3 2002/02/01 16:49:12 jan Exp $
Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: jan@swi.psy.uva.nl
WWW: http://www.swi-prolog.org
Copyright (C): 1985-2002, University of Amsterdam
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 <SWI-Prolog.h>
#include <stdio.h>
#include "error.h"
#include "table.h"
#include <string.h>
#ifdef __unix__
#include <errno.h>
#endif
#ifdef WIN32
#include <malloc.h>
/*******************************
* WINDOWS *
*******************************/
static char *
winerror(int id)
{ char *msg;
static WORD lang;
static lang_initialised = 0;
if ( !lang_initialised )
lang = MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_UK);
again:
if ( !FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|
FORMAT_MESSAGE_IGNORE_INSERTS|
FORMAT_MESSAGE_FROM_SYSTEM,
NULL, /* source */
id, /* identifier */
lang,
(LPTSTR) &msg,
0, /* size */
NULL) ) /* arguments */
{ if ( lang_initialised == 0 )
{ lang = MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT);
lang_initialised = 1;
goto again;
}
msg = "Unknown Windows error";
}
return strcpy((char *)malloc(strlen(msg)+1), msg);
}
#endif
/*******************************
* ERRORS *
*******************************/
#if !defined(HAVE_STRERROR) && !defined(WIN32)
static char *
strerror(int err)
{ extern char *sys_errlist[];
return sys_errlist[err];
}
#endif
int
error_func(int type, const char *pred, int argi, long argl)
{ switch(type)
{ case ERR_INSTANTIATION:
{ char buf[1024];
sprintf(buf, "%s: instantiation error on argument %d", pred, argi);
return PL_warning(buf);
}
case ERR_FORMAT:
{ char buf[1024];
Field f = (Field) argl;
sprintf(buf, "%s: bad record, field %d (%s), char-index %d",
pred, f->index, PL_atom_chars(f->name), argi);
return PL_warning(buf);
}
case ERR_IO:
{ char buf[1024];
#ifdef WIN32
char *msg = winerror(argi);
sprintf(buf, "%s: IO error %s", pred, msg);
free(msg);
#else
sprintf(buf, "%s: IO error %s", pred, strerror(argi));
#endif
return PL_warning(buf);
}
}
return PL_warning("Table package: unknown error");
}
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