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/**
* 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 "mongo/base/status.h"
#include "mongo/db/repl/optime.h"
#include "mongo/db/repl/replication_coordinator.h"
#include "mongo/platform/atomic_word.h"
namespace mongo {
namespace executor {
struct ConnectionPoolStats;
} // namespace executor
namespace repl {
/**
* A mock ReplicationCoordinator. Currently it is extremely simple and exists solely to link
* into dbtests.
*/
class ReplicationCoordinatorMock : public ReplicationCoordinator {
MONGO_DISALLOW_COPYING(ReplicationCoordinatorMock);
public:
ReplicationCoordinatorMock(const ReplSettings& settings);
virtual ~ReplicationCoordinatorMock();
virtual void startReplication(OperationContext* txn);
virtual void shutdown();
virtual ReplicationExecutor* getExecutor() override {
return nullptr;
};
virtual const ReplSettings& getSettings() const;
virtual bool isReplEnabled() const;
virtual Mode getReplicationMode() const;
virtual MemberState getMemberState() const;
virtual Status waitForMemberState(MemberState expectedState, Milliseconds timeout) override;
virtual bool isInPrimaryOrSecondaryState() const;
virtual Seconds getSlaveDelaySecs() const;
virtual void clearSyncSourceBlacklist();
virtual ReplicationCoordinator::StatusAndDuration awaitReplication(
OperationContext* txn, const OpTime& opTime, const WriteConcernOptions& writeConcern);
virtual ReplicationCoordinator::StatusAndDuration awaitReplicationOfLastOpForClient(
OperationContext* txn, const WriteConcernOptions& writeConcern);
virtual Status stepDown(OperationContext* txn,
bool force,
const Milliseconds& waitTime,
const Milliseconds& stepdownTime);
virtual bool isMasterForReportingPurposes();
virtual bool canAcceptWritesForDatabase(StringData dbName);
bool canAcceptWritesFor(const NamespaceString& ns) override;
virtual Status checkIfWriteConcernCanBeSatisfied(const WriteConcernOptions& writeConcern) const;
virtual Status checkCanServeReadsFor(OperationContext* txn,
const NamespaceString& ns,
bool slaveOk);
virtual bool shouldIgnoreUniqueIndex(const IndexDescriptor* idx);
virtual Status setLastOptimeForSlave(const OID& rid, const Timestamp& ts);
virtual void setMyLastAppliedOpTime(const OpTime& opTime);
virtual void setMyLastDurableOpTime(const OpTime& opTime);
virtual void setMyLastAppliedOpTimeForward(const OpTime& opTime);
virtual void setMyLastDurableOpTimeForward(const OpTime& opTime);
virtual void resetMyLastOpTimes();
virtual void setMyHeartbeatMessage(const std::string& msg);
virtual OpTime getMyLastAppliedOpTime() const;
virtual OpTime getMyLastDurableOpTime() const;
virtual ReadConcernResponse waitUntilOpTime(OperationContext* txn,
const ReadConcernArgs& settings) override;
virtual OID getElectionId();
virtual OID getMyRID() const;
virtual int getMyId() const;
virtual bool setFollowerMode(const MemberState& newState);
virtual bool isWaitingForApplierToDrain();
virtual void signalDrainComplete(OperationContext*);
virtual Status waitForDrainFinish(Milliseconds timeout) override;
virtual void signalUpstreamUpdater();
virtual bool prepareOldReplSetUpdatePositionCommand(BSONObjBuilder* cmdBuilder);
virtual bool prepareReplSetUpdatePositionCommand(BSONObjBuilder* cmdBuilder);
virtual Status processReplSetGetStatus(BSONObjBuilder* result);
virtual void fillIsMasterForReplSet(IsMasterResponse* result);
virtual void appendSlaveInfoData(BSONObjBuilder* result);
void appendConnectionStats(executor::ConnectionPoolStats* stats) const override;
virtual ReplicaSetConfig getConfig() const;
virtual void processReplSetGetConfig(BSONObjBuilder* result);
virtual void processReplSetMetadata(const rpc::ReplSetMetadata& replMetadata);
virtual void cancelAndRescheduleElectionTimeout() override;
virtual Status setMaintenanceMode(bool activate);
virtual bool getMaintenanceMode();
virtual Status processReplSetSyncFrom(const HostAndPort& target, BSONObjBuilder* resultObj);
virtual Status processReplSetFreeze(int secs, BSONObjBuilder* resultObj);
virtual Status processHeartbeat(const ReplSetHeartbeatArgs& args,
ReplSetHeartbeatResponse* response);
virtual Status processReplSetReconfig(OperationContext* txn,
const ReplSetReconfigArgs& args,
BSONObjBuilder* resultObj);
virtual Status processReplSetInitiate(OperationContext* txn,
const BSONObj& configObj,
BSONObjBuilder* resultObj);
virtual Status processReplSetGetRBID(BSONObjBuilder* resultObj);
virtual void incrementRollbackID();
virtual Status processReplSetFresh(const ReplSetFreshArgs& args, BSONObjBuilder* resultObj);
virtual Status processReplSetElect(const ReplSetElectArgs& args, BSONObjBuilder* resultObj);
virtual Status processReplSetUpdatePosition(const OldUpdatePositionArgs& updates,
long long* configVersion);
virtual Status processReplSetUpdatePosition(const UpdatePositionArgs& updates,
long long* configVersion);
virtual Status processHandshake(OperationContext* txn, const HandshakeArgs& handshake);
virtual bool buildsIndexes();
virtual std::vector<HostAndPort> getHostsWrittenTo(const OpTime& op, bool durablyWritten);
virtual std::vector<HostAndPort> getOtherNodesInReplSet() const;
virtual WriteConcernOptions getGetLastErrorDefault();
virtual Status checkReplEnabledForCommand(BSONObjBuilder* result);
virtual HostAndPort chooseNewSyncSource(const Timestamp& lastTimestampFetched);
virtual void blacklistSyncSource(const HostAndPort& host, Date_t until);
virtual void resetLastOpTimesFromOplog(OperationContext* txn);
virtual bool shouldChangeSyncSource(const HostAndPort& currentSource,
const OpTime& syncSourceLastOpTime,
bool syncSourceHasSyncSource);
virtual OpTime getLastCommittedOpTime() const;
virtual Status processReplSetRequestVotes(OperationContext* txn,
const ReplSetRequestVotesArgs& args,
ReplSetRequestVotesResponse* response);
virtual Status processReplSetDeclareElectionWinner(const ReplSetDeclareElectionWinnerArgs& args,
long long* responseTerm);
void prepareReplResponseMetadata(const rpc::RequestInterface& request,
const OpTime& lastOpTimeFromClient,
BSONObjBuilder* builder) override;
virtual Status processHeartbeatV1(const ReplSetHeartbeatArgsV1& args,
ReplSetHeartbeatResponse* response);
virtual bool isV1ElectionProtocol();
virtual bool getWriteConcernMajorityShouldJournal();
virtual void summarizeAsHtml(ReplSetHtmlSummary* output);
virtual long long getTerm();
virtual Status updateTerm(OperationContext* txn, long long term);
virtual SnapshotName reserveSnapshotName(OperationContext* txn);
virtual void forceSnapshotCreation() override;
virtual void onSnapshotCreate(OpTime timeOfSnapshot, SnapshotName name);
virtual void dropAllSnapshots() override;
virtual OpTime getCurrentCommittedSnapshotOpTime() override;
virtual void waitUntilSnapshotCommitted(OperationContext* txn,
const SnapshotName& untilSnapshot) override;
virtual size_t getNumUncommittedSnapshots() override;
virtual WriteConcernOptions populateUnsetWriteConcernOptionsSyncMode(
WriteConcernOptions wc) override;
private:
AtomicUInt64 _snapshotNameGenerator;
const ReplSettings _settings;
MemberState _memberState;
OpTime _myLastDurableOpTime;
OpTime _myLastAppliedOpTime;
};
} // namespace repl
} // namespace mongo
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