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/**
* Copyright (C) 2016 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 "mongo/db/repl/data_replicator_external_state.h"
namespace mongo {
namespace repl {
class ReplicationCoordinator;
class ReplicationCoordinatorExternalState;
/**
* Data replicator external state implementation using a replication coordinator.
*/
class DataReplicatorExternalStateImpl : public DataReplicatorExternalState {
public:
DataReplicatorExternalStateImpl(
ReplicationCoordinator* replicationCoordinator,
ReplicationCoordinatorExternalState* replicationCoordinatorExternalState);
executor::TaskExecutor* getTaskExecutor() const override;
OldThreadPool* getDbWorkThreadPool() const override;
OpTimeWithTerm getCurrentTermAndLastCommittedOpTime() override;
void processMetadata(const rpc::ReplSetMetadata& replMetadata,
boost::optional<rpc::OplogQueryMetadata> oqMetadata) override;
bool shouldStopFetching(const HostAndPort& source,
const rpc::ReplSetMetadata& replMetadata,
boost::optional<rpc::OplogQueryMetadata> oqMetadata) override;
std::unique_ptr<OplogBuffer> makeInitialSyncOplogBuffer(OperationContext* txn) const override;
std::unique_ptr<OplogBuffer> makeSteadyStateOplogBuffer(OperationContext* txn) const override;
StatusWith<ReplSetConfig> getCurrentConfig() const override;
private:
StatusWith<OpTime> _multiApply(OperationContext* txn,
MultiApplier::Operations ops,
MultiApplier::ApplyOperationFn applyOperation) override;
Status _multiSyncApply(MultiApplier::OperationPtrs* ops) override;
Status _multiInitialSyncApply(MultiApplier::OperationPtrs* ops,
const HostAndPort& source,
AtomicUInt32* fetchCount) override;
protected:
ReplicationCoordinator* getReplicationCoordinator() const;
ReplicationCoordinatorExternalState* getReplicationCoordinatorExternalState() const;
private:
// Not owned by us.
ReplicationCoordinator* _replicationCoordinator;
// Not owned by us.
ReplicationCoordinatorExternalState* _replicationCoordinatorExternalState;
};
} // namespace repl
} // namespace mongo
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