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author | Hari Khalsa <hkhalsa@10gen.com> | 2014-09-11 15:31:21 -0400 |
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committer | Hari Khalsa <hkhalsa@10gen.com> | 2014-09-11 16:21:29 -0400 |
commit | 1a90996313ec83f0913bf2aef322193b0884f499 (patch) | |
tree | 8c93a84b2a7c3fbbedadd7e34c8c9ffd07b9eea7 /src/mongo/db/dbdirectclient.h | |
parent | b6e5d1e2af49ebb2edfb6522ba744d344b73c4f6 (diff) | |
download | mongo-1a90996313ec83f0913bf2aef322193b0884f499.tar.gz |
SERVER-14668 split dbdirectclient out of instance.cpp
Diffstat (limited to 'src/mongo/db/dbdirectclient.h')
-rw-r--r-- | src/mongo/db/dbdirectclient.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/mongo/db/dbdirectclient.h b/src/mongo/db/dbdirectclient.h new file mode 100644 index 00000000000..0a8b5122dd0 --- /dev/null +++ b/src/mongo/db/dbdirectclient.h @@ -0,0 +1,110 @@ +/** + * 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/client/dbclientinterface.h" +#include "mongo/db/dbmessage.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. If you ever need to change the OperationContext, that can be done + * without the overhead of creating a new DBDirectClient by calling setOpCtx(), after which all + * operations will use the new OperationContext. + */ + class DBDirectClient : public DBClientBase { + public: + static const HostAndPort dummyHost; + + DBDirectClient(OperationContext* txn); + + using DBClientBase::query; + + // XXX: is this valid or useful? + void setOpCtx(OperationContext* txn); + + virtual std::auto_ptr<DBClientCursor> query(const std::string &ns, + Query query, + int nToReturn = 0, + int nToSkip = 0, + const BSONObj* fieldsToReturn = 0, + int queryOptions = 0, + int batchSize = 0); + + virtual bool isFailed() const; + + virtual bool isStillConnected(); + + virtual std::string toString() const; + + virtual std::string getServerAddress() const; + + virtual bool call(Message& toSend, + Message& response, + bool assertOk = true, + std::string* actualServer = 0); + + virtual void say(Message& toSend, + bool isRetry = false, + std::string* actualServer = 0); + + virtual void sayPiggyBack(Message& toSend); + + virtual void killCursor(long long cursorID); + + virtual bool callRead(Message& toSend, Message& response); + + virtual unsigned long long count(const std::string &ns, + const BSONObj& query = BSONObj(), + int options = 0, + int limit = 0, + int skip = 0); + + virtual ConnectionString::ConnectionType type() const; + + double getSoTimeout() const; + + virtual bool lazySupported() const; + + virtual QueryOptions _lookupAvailableOptions(); + + private: + OperationContext* _txn; + }; + +} // namespace mongo |