/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992,2007 Frank Tore Johansen
 * 
 * Deliantra 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 3 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, see <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

#include <cstdarg>
#include <global.h>
#include <funcpoint.h>

void
LOG (int flags, const char *format, ...)
{
  int level = flags & 15;

  if (level > settings.debug)
    return;

  char buf[20480];

  struct timeval tv;
  gettimeofday (&tv, 0);
  struct tm *ptime = localtime (&tv.tv_sec);

  int len = strftime (buf, sizeof (buf) - 7, "%Y-%m-%d %H:%M:%S", ptime);
  len += sprintf (buf + len, ".%04d ", (int)(tv.tv_usec / 100));

  va_list ap;
  va_start (ap, format);
  len += vsnprintf (buf + len, sizeof (buf) - len, format, ap);
  va_end (ap);

  len = min (sizeof (buf) - 1, len);

  if (buf [len - 1] != '\n')
    buf [len++] = '\n'; // not 0-terminated

  write (STDERR_FILENO, buf, len);
  if (logfile != stderr)
    fwrite (buf, 1, len, logfile);

  if (flags & logBacktrace)
    log_backtrace (buf);
}