xct_manager.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_XCT_XCT_MANAGER_HPP_
#define FOEDUS_XCT_XCT_MANAGER_HPP_
#include "foedus/fwd.hpp"
#include "foedus/initializable.hpp"
#include "foedus/thread/fwd.hpp"
#include "foedus/xct/fwd.hpp"
#include "foedus/xct/xct_id.hpp"
namespace foedus {
namespace xct {
class XctManager CXX11_FINAL : public virtual Initializable {
 public:
  explicit XctManager(Engine* engine);
  ~XctManager();

  // Disable default constructors
  XctManager() CXX11_FUNC_DELETE;
  XctManager(const XctManager&) CXX11_FUNC_DELETE;
  XctManager& operator=(const XctManager&) CXX11_FUNC_DELETE;

  ErrorStack  initialize() CXX11_OVERRIDE;
  bool        is_initialized() const CXX11_OVERRIDE;
  ErrorStack  uninitialize() CXX11_OVERRIDE;

  Epoch       get_current_global_epoch() const;
  Epoch       get_current_global_epoch_weak() const;

  Epoch       get_current_grace_epoch() const;
  Epoch       get_current_grace_epoch_weak() const;

  void        wait_for_current_global_epoch(Epoch target_epoch, int64_t wait_microseconds = -1);

  void        advance_current_global_epoch();

  ErrorCode  begin_xct(thread::Thread* context, IsolationLevel isolation_level);

  ErrorCode   precommit_xct(thread::Thread* context, Epoch *commit_epoch);


  ErrorCode   wait_for_commit(Epoch commit_epoch, int64_t wait_microseconds = -1);

  ErrorCode   abort_xct(thread::Thread* context);

  void        pause_accepting_xct();
  void        resume_accepting_xct();

 private:
  XctManagerPimpl *pimpl_;
};
}  // namespace xct
}  // namespace foedus
#endif  // FOEDUS_XCT_XCT_MANAGER_HPP_