masstree_reserve_impl.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_STORAGE_MASSTREE_MASSTREE_RESERVE_IMPL_HPP_
#define FOEDUS_STORAGE_MASSTREE_MASSTREE_RESERVE_IMPL_HPP_

#include "foedus/error_code.hpp"
#include "foedus/storage/masstree/fwd.hpp"
#include "foedus/storage/masstree/masstree_id.hpp"
#include "foedus/thread/fwd.hpp"
#include "foedus/xct/sysxct_functor.hpp"

namespace foedus {
namespace storage {
namespace masstree {

struct ReserveRecords final : public xct::SysxctFunctor {
  thread::Thread* const       context_;
  MasstreeBorderPage* const   target_;
  const KeySlice              slice_;
  const void* const           suffix_;
  const KeyLength             remainder_length_;
  const PayloadLength         payload_count_;
  const SlotIndex             hint_check_from_;

  const bool                  should_aggresively_create_next_layer_;
  bool                        out_split_needed_;

  ReserveRecords(
    thread::Thread* context,
    MasstreeBorderPage* target,
    KeySlice slice,
    KeyLength remainder_length,
    const void* suffix,
    PayloadLength payload_count,
    bool should_aggresively_create_next_layer,
    SlotIndex hint_check_from)
    : xct::SysxctFunctor(),
      context_(context),
      target_(target),
      slice_(slice),
      suffix_(suffix),
      remainder_length_(remainder_length),
      payload_count_(payload_count),
      hint_check_from_(hint_check_from),
      should_aggresively_create_next_layer_(should_aggresively_create_next_layer),
      out_split_needed_(false) {
  }
  virtual ErrorCode run(xct::SysxctWorkspace* sysxct_workspace) override;
};

}  // namespace masstree
}  // namespace storage
}  // namespace foedus
#endif  // FOEDUS_STORAGE_MASSTREE_MASSTREE_RESERVE_IMPL_HPP_