/*
 * SystemBackend.h
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.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/>.
 */

#ifndef MAD_COMMON_SYSTEMBACKEND_H_
#define MAD_COMMON_SYSTEMBACKEND_H_

#include <stdint.h>
#include <memory>

namespace Mad {
namespace Common {

class SystemBackend {
  private:
    static std::auto_ptr<SystemBackend> backend;

  protected:
    SystemBackend() {}

    static void setBackend(SystemBackend *backend0) {
      backend = std::auto_ptr<SystemBackend>(backend0);
    }

  public:
    struct UptimeInfo {
      unsigned long uptime;
      unsigned long idleTime;
    };

    struct MemoryInfo {
      unsigned long totalMem;
      unsigned long freeMem;
      unsigned long totalSwap;
      unsigned long freeSwap;
    };

    virtual ~SystemBackend() {}

    virtual UptimeInfo getUptimeInfo() const {
      UptimeInfo ret = {0, 0};
      return ret;
    }

    virtual MemoryInfo getMemoryInfo() const {
      MemoryInfo ret = {0, 0, 0, 0};
      return ret;
    }

    static SystemBackend *getBackend() {
      return backend.get();
    }
};

}
}

#endif /* MAD_COMMON_SYSTEMBACKEND_H_ */