snapshot.hpp

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/*
 * Copyright (c) 2014-2015, Hewlett-Packard Development Company, LP.
 * 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
 *
 * HP designates this particular file as subject to the "Classpath" exception
 * as provided by HP in the LICENSE.txt file that accompanied this code.
 */
#ifndef FOEDUS_SNAPSHOT_SNAPSHOT_HPP_
#define FOEDUS_SNAPSHOT_SNAPSHOT_HPP_

#include <iosfwd>

#include "foedus/epoch.hpp"
#include "foedus/snapshot/snapshot_id.hpp"
#include "foedus/storage/storage_id.hpp"

namespace foedus {
namespace snapshot {

struct Snapshot {
  SnapshotId  id_;

  Epoch base_epoch_;

  Epoch valid_until_epoch_;

  storage::StorageId max_storage_id_;

  friend std::ostream& operator<<(std::ostream& o, const Snapshot& v);
  void clear() {
    id_ = 0;
    base_epoch_ = INVALID_EPOCH;
    valid_until_epoch_ = INVALID_EPOCH;
    max_storage_id_ = 0;
  }
};
}  // namespace snapshot
}  // namespace foedus
#endif  // FOEDUS_SNAPSHOT_SNAPSHOT_HPP_