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/* error handling
Copyright (C) 1994-1997 University of Dortmund
Department of Electrical Engineering, AG SIV
VAUL is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
VAUL 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 Library General
Public License for more details.
You should have received a copy of the GNU Library General Public
License along with VAUL; see the file COPYING.LIB. If not, write
to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA.
*/
#include <freehdl/vaul-errors.h>
#include <freehdl/vaul-util.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
vaul_error_source::vaul_error_source()
{
error_code = 0;
error_desc = NULL;
}
vaul_error_source::~vaul_error_source()
{
set_error_desc(NULL);
}
void vaul_error_source::set_error()
{
set_error("");
}
void vaul_error_source::set_error(const char *fmt, ...)
{
if(errno) {
error_code = errno;
va_list ap;
va_start(ap, fmt);
set_error_desc (vaul_vaprintf (fmt, ap));
more_error_desc(strerror(error_code));
va_end(ap);
} else
clear_error();
}
void vaul_error_source::set_error(int code, const char *fmt, ...)
{
if(code) {
error_code = code;
va_list ap;
va_start(ap, fmt);
set_error_desc (vaul_vaprintf (fmt, ap));
va_end(ap);
} else
clear_error();
}
void vaul_error_source::set_error(vaul_error_source *es, const char *fmt, ...)
{
if(es->error_code) {
error_code = es->error_code;
va_list ap;
va_start(ap, fmt);
set_error_desc (vaul_vaprintf (fmt, ap));
more_error_desc(es->error_desc);
va_end(ap);
} else
clear_error();
}
void vaul_error_source::set_error(vaul_error_source &es, const char *fmt, ...)
{
if(es.error_code) {
error_code = es.error_code;
va_list ap;
va_start(ap, fmt);
set_error_desc (vaul_vaprintf (fmt, ap));
more_error_desc(es.error_desc);
va_end(ap);
} else
clear_error();
}
void vaul_error_source::clear_error()
{
error_code = 0;
set_error_desc(NULL);
}
void vaul_error_source::print_err(FILE *f, const char *msg)
{
fprintf(f, "%s: ", vaul_application_name);
if(msg)
fprintf(f, "%s: ", msg);
if(error_desc)
fprintf(f, "%s\n", error_desc);
else
fprintf(f, "BOGUS ERROR REPORT\n");
}
void vaul_error_source::print_err(const char *msg)
{
print_err(stderr, msg);
}
void vaul_error_source::set_error_desc(const char *s)
{
free((char*)error_desc);
error_desc = s;
}
void vaul_error_source::more_error_desc(const char *s)
{
if(error_desc == NULL)
set_error_desc(s);
else
set_error_desc (vaul_aprintf ("%s%s", error_desc, s));
}
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