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/*
 * Logger.cpp
 *
 * Copyright (C) 2008 Johannes Thorn <dante@g4t3.de>
 *
 * 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 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/>.
 */

#include "Logger.h"
#include "LogManager.h"

#include <cstdlib>

namespace Mad {
namespace Core {

void Logger::logfv(MessageCategory category, MessageLevel level, const char *format, va_list ap) {
  int size = 100;
  char *buf = (char*)std::malloc(size);

  // If buffer is too small, try again with bigger buffer
  while(true) {
    va_list ap2;

    va_copy(ap2, ap);
    int n = std::vsnprintf(buf, size, format, ap2);
    va_end(ap2);

    if(n > -1 && n < size) {
      log(category, level, buf);
      std::free(buf);
      return;
    }

    if(n > -1)
      size = n+1;
    else
      size *= 2;

    buf = (char*)std::realloc(buf, size);
  }

}

void Logger::log(MessageCategory category, MessageLevel level, const std::string &message) {
  LogManager::get()->log(category, level, std::time(0), message);
}

void Logger::logf(MessageCategory category, MessageLevel level, const char *format, ...) {
  va_list ap;
  va_start(ap, format);
  logfv(category, level, format, ap);
  va_end(ap);
}

void Logger::logf(MessageCategory category, const char *format, ...) {
  va_list ap;
  va_start(ap, format);
  logfv(category, DEFAULT, format, ap);
  va_end(ap);
}

void Logger::logf(MessageLevel level, const char *format, ...) {
  va_list ap;
  va_start(ap, format);
  logfv(GENERAL, level, format, ap);
  va_end(ap);
}

void Logger::logf(const char *format, ...) {
  va_list ap;
  va_start(ap, format);
  logfv(GENERAL, DEFAULT, format, ap);
  va_end(ap);
}

}
}