log_options.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_LOG_LOG_OPTIONS_HPP_
#define FOEDUS_LOG_LOG_OPTIONS_HPP_
#include <stdint.h>

#include <string>
#include <vector>

#include "foedus/cxx11.hpp"
#include "foedus/externalize/externalizable.hpp"
#include "foedus/fs/device_emulation_options.hpp"
#include "foedus/fs/filesystem.hpp"
#include "foedus/log/log_id.hpp"

namespace foedus {
namespace log {
struct LogOptions CXX11_FINAL : public virtual externalize::Externalizable {
  enum Constants {
    kDefaultLogBufferKb = (1 << 16),
    kDefaultLogSizeMb = (1 << 14),
  };
  LogOptions();

  fs::FixedPath               folder_path_pattern_;

  uint16_t                    loggers_per_node_;

  uint32_t                    log_buffer_kb_;

  uint32_t                    log_file_size_mb_;

  bool                        flush_at_shutdown_;

  foedus::fs::DeviceEmulationOptions emulation_;

  std::string     convert_folder_path_pattern(int node, int logger) const;
  std::string     construct_suffixed_log_path(int node, int logger, LogFileOrdinal ordinal) const;
  std::string     construct_meta_log_path() const;

  EXTERNALIZABLE(LogOptions);
};
}  // namespace log
}  // namespace foedus
#endif  // FOEDUS_LOG_LOG_OPTIONS_HPP_