/**
* Copyright (C) 2018 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 .
*
* 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
#include "mongo/db/service_context.h"
#include "mongo/executor/network_connection_hook.h"
#include "mongo/executor/remote_command_request.h"
#include "mongo/executor/remote_command_response.h"
#include "mongo/rpc/protocol.h"
#include "mongo/rpc/unique_message.h"
#include "mongo/transport/baton.h"
#include "mongo/transport/message_compressor_manager.h"
#include "mongo/transport/transport_layer.h"
#include "mongo/util/future.h"
namespace mongo {
class AsyncDBClient : public std::enable_shared_from_this {
public:
explicit AsyncDBClient(const HostAndPort& peer,
transport::SessionHandle session,
ServiceContext* svcCtx)
: _peer(std::move(peer)), _session(std::move(session)), _svcCtx(svcCtx) {}
using Handle = std::shared_ptr;
static Future connect(const HostAndPort& peer,
transport::ConnectSSLMode sslMode,
ServiceContext* const context,
transport::ReactorHandle reactor,
Milliseconds timeout);
Future runCommandRequest(
executor::RemoteCommandRequest request, const transport::BatonHandle& baton = nullptr);
Future runCommand(OpMsgRequest request,
const transport::BatonHandle& baton = nullptr);
Future authenticate(const BSONObj& params);
Future initWireVersion(const std::string& appName,
executor::NetworkConnectionHook* const hook);
void cancel(const transport::BatonHandle& baton = nullptr);
bool isStillConnected();
void end();
const HostAndPort& remote() const;
const HostAndPort& local() const;
private:
Future _call(Message request, const transport::BatonHandle& baton = nullptr);
BSONObj _buildIsMasterRequest(const std::string& appName);
void _parseIsMasterResponse(BSONObj request,
const std::unique_ptr& response);
const HostAndPort _peer;
transport::SessionHandle _session;
ServiceContext* const _svcCtx;
MessageCompressorManager _compressorManager;
boost::optional _negotiatedProtocol;
};
} // namespace mongo