text: /**
   *    Copyright (C) 2014 MongoDB Inc.
   *
   *    This program is free software: you can redistribute it and/or  modify
   *    it under the terms of the GNU Affero General Public License, version 3,
   *    as published by the Free Software Foundation.
   *
   *    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 Affero General Public License for more details.
   *
   *    You should have received a copy of the GNU Affero General Public License
   *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   *
   *    As a special exception, the copyright holders give permission to link the
   *    code of portions of this program with the OpenSSL library under certain
   *    conditions as described in each individual source file and distribute
   *    linked combinations including the program with the OpenSSL library. You
   *    must comply with the GNU Affero General Public License in all respects for
   *    all of the code used other than as permitted herein. If you modify file(s)
   *    with this exception, you may extend this exception to your version of the
   *    file(s), but you are not obligated to do so. If you do not wish to do so,
   *    delete this exception statement from your version. If you delete this
   *    exception statement from all source files in the program, then also delete
   *    it in the license file.
   */
  #pragma once
  
  #include <boost/scoped_ptr.hpp>
  
  #include "mongo/db/operation_context.h"
  #include "mongo/db/client.h"
  #include "mongo/db/concurrency/locker_noop.h"
  #include "mongo/db/curop.h"
  #include "mongo/db/storage/recovery_unit_noop.h"
  
  namespace mongo {
  
      class OperationContextNoop : public OperationContext {
      public:
  
          OperationContextNoop() : OperationContextNoop(new RecoveryUnitNoop()) {}
  
          OperationContextNoop(RecoveryUnit* ru) : OperationContextNoop(nullptr, 0, ru) {}
  
          OperationContextNoop(Client* client, unsigned int opId)
              : OperationContextNoop(client, opId, new RecoveryUnitNoop()) {
          }
  
          OperationContextNoop(Client* client, unsigned int opId, RecoveryUnit* ru)
              : OperationContextNoop(client, opId, new LockerNoop(), ru) {
          }
  
          OperationContextNoop(Client* client, unsigned int opId, Locker* locker)
              : OperationContextNoop(client, opId, locker, new RecoveryUnitNoop()) {
          }
  
          OperationContextNoop(Client* client, unsigned int opId, Locker* locker, RecoveryUnit* ru)
              : OperationContext(client, opId, locker),
                _recoveryUnit(ru) {
  
              _locker.reset(lockState());
          }
  
          virtual ~OperationContextNoop() = default;
  
          virtual RecoveryUnit* recoveryUnit() const override {
              return _recoveryUnit.get();
          }
  
          virtual RecoveryUnit* releaseRecoveryUnit() override {
              return _recoveryUnit.release();
          }
  
          virtual RecoveryUnitState setRecoveryUnit(RecoveryUnit* unit,
                                                    RecoveryUnitState state) override {
              RecoveryUnitState oldState = _ruState;
              _recoveryUnit.reset(unit);
              _ruState = state;
              return oldState;
          }
  
          virtual ProgressMeter* setMessage(const char * msg,
                                            const std::string &name,
                                            unsigned long long progressMeterTotal,
                                            int secondsBetween) override {
              return &_pm;
          }
  
          virtual void checkForInterrupt() override { }
          virtual Status checkForInterruptNoAssert() override {
              return Status::OK();
          }
  
          virtual bool isPrimaryFor( StringData ns ) override {
              return true;
          }
  
          virtual std::string getNS() const override {
              return std::string();
          };
  
          void setReplicatedWrites(bool writesAreReplicated = true) override {}
  
          bool writesAreReplicated() const override {
              return false;
          }
  
          virtual uint64_t getRemainingMaxTimeMicros() const override {
              return 0;
          }
  
      private:
          std::auto_ptr<RecoveryUnit> _recoveryUnit;
          boost::scoped_ptr<Locker> _locker;
          ProgressMeter _pm;
      };
  
  }  // namespace mongo
  