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path: root/src/mongo/db/repl/storage_interface_impl.h
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/**
 *    Copyright (C) 2018-present MongoDB, Inc.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the Server Side Public License, version 1,
 *    as published by MongoDB, Inc.
 *
 *    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
 *    Server Side Public License for more details.
 *
 *    You should have received a copy of the Server Side Public License
 *    along with this program. If not, see
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    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 Server Side 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/base/status_with.h"
#include "mongo/base/string_data.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/timestamp.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/repl/storage_interface.h"

namespace mongo {
namespace repl {

class StorageInterfaceImpl : public StorageInterface {
    StorageInterfaceImpl(const StorageInterfaceImpl&) = delete;
    StorageInterfaceImpl& operator=(const StorageInterfaceImpl&) = delete;

public:
    static const char kDefaultRollbackIdNamespace[];
    static const char kRollbackIdFieldName[];
    static const char kRollbackIdDocumentId[];

    StorageInterfaceImpl();

    StatusWith<int> getRollbackID(OperationContext* opCtx) override;
    StatusWith<int> initializeRollbackID(OperationContext* opCtx) override;
    StatusWith<int> incrementRollbackID(OperationContext* opCtx) override;

    /**
     *  Allocates a new TaskRunner for use by the passed in collection.
     */
    StatusWith<std::unique_ptr<CollectionBulkLoader>> createCollectionForBulkLoading(
        const NamespaceString& nss,
        const CollectionOptions& options,
        const BSONObj idIndexSpec,
        const std::vector<BSONObj>& secondaryIndexSpecs) override;

    Status insertDocument(OperationContext* opCtx,
                          const NamespaceStringOrUUID& nsOrUUID,
                          const TimestampedBSONObj& doc,
                          long long term) override;

    Status insertDocuments(OperationContext* opCtx,
                           const NamespaceStringOrUUID& nsOrUUID,
                           const std::vector<InsertStatement>& docs) override;

    Status dropReplicatedDatabases(OperationContext* opCtx) override;

    Status createOplog(OperationContext* opCtx, const NamespaceString& nss) override;
    StatusWith<size_t> getOplogMaxSize(OperationContext* opCtx,
                                       const NamespaceString& nss) override;

    Status createCollection(OperationContext* opCtx,
                            const NamespaceString& nss,
                            const CollectionOptions& options) override;

    Status dropCollection(OperationContext* opCtx, const NamespaceString& nss) override;

    Status truncateCollection(OperationContext* opCtx, const NamespaceString& nss) override;

    Status renameCollection(OperationContext* opCtx,
                            const NamespaceString& fromNS,
                            const NamespaceString& toNS,
                            bool stayTemp) override;

    Status setIndexIsMultikey(OperationContext* opCtx,
                              const NamespaceString& nss,
                              const std::string& indexName,
                              const MultikeyPaths& paths,
                              Timestamp ts) override;

    StatusWith<std::vector<BSONObj>> findDocuments(OperationContext* opCtx,
                                                   const NamespaceString& nss,
                                                   boost::optional<StringData> indexName,
                                                   ScanDirection scanDirection,
                                                   const BSONObj& startKey,
                                                   BoundInclusion boundInclusion,
                                                   std::size_t limit) override;

    StatusWith<std::vector<BSONObj>> deleteDocuments(OperationContext* opCtx,
                                                     const NamespaceString& nss,
                                                     boost::optional<StringData> indexName,
                                                     ScanDirection scanDirection,
                                                     const BSONObj& startKey,
                                                     BoundInclusion boundInclusion,
                                                     std::size_t limit) override;

    StatusWith<BSONObj> findSingleton(OperationContext* opCtx, const NamespaceString& nss) override;

    Status putSingleton(OperationContext* opCtx,
                        const NamespaceString& nss,
                        const TimestampedBSONObj& update) override;

    Status updateSingleton(OperationContext* opCtx,
                           const NamespaceString& nss,
                           const BSONObj& query,
                           const TimestampedBSONObj& update) override;

    StatusWith<BSONObj> findById(OperationContext* opCtx,
                                 const NamespaceStringOrUUID& nsOrUUID,
                                 const BSONElement& idKey) override;

    StatusWith<BSONObj> deleteById(OperationContext* opCtx,
                                   const NamespaceStringOrUUID& nsOrUUID,
                                   const BSONElement& idKey) override;

    Status upsertById(OperationContext* opCtx,
                      const NamespaceStringOrUUID& nsOrUUID,
                      const BSONElement& idKey,
                      const BSONObj& update) override;

    Status deleteByFilter(OperationContext* opCtx,
                          const NamespaceString& nss,
                          const BSONObj& filter) override;

    StatusWith<StorageInterface::CollectionSize> getCollectionSize(
        OperationContext* opCtx, const NamespaceString& nss) override;

    StatusWith<StorageInterface::CollectionCount> getCollectionCount(
        OperationContext* opCtx, const NamespaceStringOrUUID& nsOrUUID) override;

    Status setCollectionCount(OperationContext* opCtx,
                              const NamespaceStringOrUUID& nsOrUUID,
                              long long newCount) override;

    StatusWith<OptionalCollectionUUID> getCollectionUUID(OperationContext* opCtx,
                                                         const NamespaceString& nss) override;

    Status upgradeNonReplicatedUniqueIndexes(OperationContext* opCtx) override;

    void setStableTimestamp(ServiceContext* serviceCtx, Timestamp snapshotName) override;

    void setInitialDataTimestamp(ServiceContext* serviceCtx, Timestamp snapshotName) override;

    StatusWith<Timestamp> recoverToStableTimestamp(OperationContext* opCtx) override;

    bool supportsRecoverToStableTimestamp(ServiceContext* serviceCtx) const override;

    bool supportsRecoveryTimestamp(ServiceContext* serviceCtx) const override;

    boost::optional<Timestamp> getRecoveryTimestamp(ServiceContext* serviceCtx) const override;

    bool supportsDocLocking(ServiceContext* serviceCtx) const override;

    Timestamp getAllCommittedTimestamp(ServiceContext* serviceCtx) const override;

    Timestamp getOldestOpenReadTimestamp(ServiceContext* serviceCtx) const override;

    /**
     * Checks that the "admin" database contains a supported version of the auth data schema.
     */
    Status isAdminDbValid(OperationContext* opCtx) override;

    void waitForAllEarlierOplogWritesToBeVisible(OperationContext* opCtx,
                                                 bool primaryOnly) override;
    void oplogDiskLocRegister(OperationContext* opCtx,
                              const Timestamp& ts,
                              bool orderedCommit) override;

    boost::optional<Timestamp> getLastStableRecoveryTimestamp(
        ServiceContext* serviceCtx) const override;

    boost::optional<Timestamp> getLastStableCheckpointTimestampDeprecated(
        ServiceContext* serviceCtx) const override;

    Timestamp getPointInTimeReadTimestamp(OperationContext* opCtx) const override;

private:
    const NamespaceString _rollbackIdNss;
};

}  // namespace repl
}  // namespace mongo