SystemVariable.h

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/*
 * Copyright (C) 2007-2015 Hypertable, Inc.
 *
 * This file is part of Hypertable.
 *
 * Hypertable 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 any later version.
 *
 * Hypertable 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., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#ifndef Hypertable_Lib_SystemvVriable_h
#define Hypertable_Lib_SystemvVriable_h

#include <Common/Serializable.h>
#include <Common/String.h>

#include <vector>

namespace Hypertable {


  namespace SystemVariable {

    enum Code {
      READONLY = 0,   
      COUNT    = 1    
    };

    struct Spec : public Serializable {

      int32_t code;

      bool value;
      
      uint8_t encoding_version() const override;

      size_t encoded_length_internal() const override;

      void encode_internal(uint8_t **bufp) const override;

      void decode_internal(uint8_t version, const uint8_t **bufp,
                           size_t *remainp) override;

    };

    const char *code_to_string(int var_code);

    int string_to_code(const std::string &var_string);

    bool default_value(int var_code);

    std::string specs_to_string(const std::vector<Spec> &specs);

    size_t encoded_length_specs(const std::vector<Spec> &specs);

    void encode_specs(const std::vector<Spec> &specs, uint8_t **bufp);

    void decode_specs(std::vector<Spec> &specs,
                      const uint8_t **bufp, size_t *remainp);

  }


}

#endif // Hypertable_Lib_SystemvVriable_h