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/*
$Id: logging.c,v 1.1 2004/12/18 17:29:32 rocky Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2003, 2004 Rocky Bernstein <rocky@panix.com>
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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <cdio/logging.h>
#include "cdio_assert.h"
#include "portable.h"
static const char _rcsid[] = "$Id: logging.c,v 1.1 2004/12/18 17:29:32 rocky Exp $";
cdio_log_level_t cdio_loglevel_default = CDIO_LOG_WARN;
static void
default_cdio_log_handler (cdio_log_level_t level, const char message[])
{
switch (level)
{
case CDIO_LOG_ERROR:
if (level >= cdio_loglevel_default) {
fprintf (stderr, "**ERROR: %s\n", message);
fflush (stderr);
}
exit (EXIT_FAILURE);
break;
case CDIO_LOG_DEBUG:
if (level >= cdio_loglevel_default) {
fprintf (stdout, "--DEBUG: %s\n", message);
}
break;
case CDIO_LOG_WARN:
if (level >= cdio_loglevel_default) {
fprintf (stdout, "++ WARN: %s\n", message);
}
break;
case CDIO_LOG_INFO:
if (level >= cdio_loglevel_default) {
fprintf (stdout, " INFO: %s\n", message);
}
break;
case CDIO_LOG_ASSERT:
if (level >= cdio_loglevel_default) {
fprintf (stderr, "!ASSERT: %s\n", message);
fflush (stderr);
}
abort ();
break;
default:
cdio_assert_not_reached ();
break;
}
fflush (stdout);
}
static cdio_log_handler_t _handler = default_cdio_log_handler;
cdio_log_handler_t
cdio_log_set_handler (cdio_log_handler_t new_handler)
{
cdio_log_handler_t old_handler = _handler;
_handler = new_handler;
return old_handler;
}
static void
cdio_logv (cdio_log_level_t level, const char format[], va_list args)
{
char buf[1024] = { 0, };
static int in_recursion = 0;
if (in_recursion)
cdio_assert_not_reached ();
in_recursion = 1;
vsnprintf(buf, sizeof(buf)-1, format, args);
_handler(level, buf);
in_recursion = 0;
}
void
cdio_log (cdio_log_level_t level, const char format[], ...)
{
va_list args;
va_start (args, format);
cdio_logv (level, format, args);
va_end (args);
}
#define CDIO_LOG_TEMPLATE(level, LEVEL) \
void \
cdio_ ## level (const char format[], ...) \
{ \
va_list args; \
va_start (args, format); \
cdio_logv (CDIO_LOG_ ## LEVEL, format, args); \
va_end (args); \
}
CDIO_LOG_TEMPLATE(debug, DEBUG)
CDIO_LOG_TEMPLATE(info, INFO)
CDIO_LOG_TEMPLATE(warn, WARN)
CDIO_LOG_TEMPLATE(error, ERROR)
#undef CDIO_LOG_TEMPLATE
/*
* Local variables:
* c-file-style: "gnu"
* tab-width: 8
* indent-tabs-mode: nil
* End:
*/
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