/** * 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 * . * * 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/client/dbclient_base.h" #include "mongo/config.h" #include "mongo/db/dbmessage.h" #include "mongo/db/ops/write_ops.h" #include "mongo/util/net/hostandport.h" namespace mongo { class OperationContext; /** * Embedded calls to the local server using the DBClientBase API without going over the network. * * Caller does not need to lock, that is handled within. * * All operations are performed within the scope of a passed-in OperationContext (except when * using the deprecated constructor). You must ensure that the OperationContext is valid when * calling into any function. */ class DBDirectClient : public DBClientBase { public: DBDirectClient(OperationContext* opCtx); using DBClientBase::find; using DBClientBase::insert; using DBClientBase::remove; using DBClientBase::runCommand; using DBClientBase::update; std::unique_ptr find(FindCommandRequest findRequest, const ReadPreferenceSetting& readPref, ExhaustMode exhaustMode) override; write_ops::FindAndModifyCommandReply findAndModify( const write_ops::FindAndModifyCommandRequest& findAndModify); /** * insert, update, and remove only check the top level error status. The caller is responsible * for checking the writeErrors element for errors during execution. */ write_ops::InsertCommandReply insert(const write_ops::InsertCommandRequest& insert); write_ops::UpdateCommandReply update(const write_ops::UpdateCommandRequest& update); write_ops::DeleteCommandReply remove(const write_ops::DeleteCommandRequest& remove); bool isFailed() const override; bool isStillConnected() override; std::string toString() const override; std::string getServerAddress() const override; void say(Message& toSend, bool isRetry = false, std::string* actualServer = nullptr) override; long long count(NamespaceStringOrUUID nsOrUuid, const BSONObj& query = BSONObj(), int options = 0, int limit = 0, int skip = 0, boost::optional readConcernObj = boost::none) override; ConnectionString::ConnectionType type() const override; double getSoTimeout() const override; int getMinWireVersion() final; int getMaxWireVersion() final; bool isReplicaSetMember() const final; bool isMongos() const final { return false; } bool isTLS() final { return false; } #ifdef MONGO_CONFIG_SSL const SSLConfiguration* getSSLConfiguration() override { invariant(false); return nullptr; } #endif protected: void _auth(const BSONObj& params) override; private: void _call(Message& toSend, Message& response, std::string* actualServer) override; OperationContext* _opCtx; }; } // namespace mongo