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/**
* 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 <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 <memory>
#include "mongo/client/async_client.h"
#include "mongo/executor/connection_pool.h"
#include "mongo/executor/network_connection_hook.h"
#include "mongo/executor/network_interface.h"
namespace mongo {
namespace executor {
namespace connection_pool_tl {
class TLTypeFactory final : public ConnectionPool::DependentTypeFactoryInterface {
public:
TLTypeFactory(transport::ReactorHandle reactor,
transport::TransportLayer* tl,
std::unique_ptr<NetworkConnectionHook> onConnectHook)
: _reactor(std::move(reactor)), _tl(tl), _onConnectHook(std::move(onConnectHook)) {}
std::shared_ptr<ConnectionPool::ConnectionInterface> makeConnection(
const HostAndPort& hostAndPort, size_t generation) override;
std::unique_ptr<ConnectionPool::TimerInterface> makeTimer() override;
Date_t now() override;
private:
transport::ReactorHandle _reactor;
transport::TransportLayer* _tl;
std::unique_ptr<NetworkConnectionHook> _onConnectHook;
};
class TLTimer final : public ConnectionPool::TimerInterface {
public:
explicit TLTimer(const transport::ReactorHandle& reactor)
: _reactor(reactor), _timer(_reactor->makeTimer()) {}
void setTimeout(Milliseconds timeout, TimeoutCallback cb) override;
void cancelTimeout() override;
private:
transport::ReactorHandle _reactor;
std::unique_ptr<transport::ReactorTimer> _timer;
};
class TLConnection final : public ConnectionPool::ConnectionInterface {
public:
TLConnection(transport::ReactorHandle reactor,
ServiceContext* serviceContext,
HostAndPort peer,
size_t generation,
NetworkConnectionHook* onConnectHook)
: _reactor(reactor),
_serviceContext(serviceContext),
_timer(_reactor),
_peer(std::move(peer)),
_generation(generation),
_onConnectHook(onConnectHook) {}
void indicateSuccess() override;
void indicateFailure(Status status) override;
void indicateUsed() override;
const HostAndPort& getHostAndPort() const override;
bool isHealthy() override;
AsyncDBClient* client();
private:
Date_t getLastUsed() const override;
const Status& getStatus() const override;
void setTimeout(Milliseconds timeout, TimeoutCallback cb) override;
void cancelTimeout() override;
void setup(Milliseconds timeout, SetupCallback cb) override;
void resetToUnknown() override;
void refresh(Milliseconds timeout, RefreshCallback cb) override;
size_t getGeneration() const override;
private:
transport::ReactorHandle _reactor;
ServiceContext* const _serviceContext;
TLTimer _timer;
HostAndPort _peer;
size_t _generation;
NetworkConnectionHook* const _onConnectHook;
AsyncDBClient::Handle _client;
Date_t _lastUsed;
Status _status = ConnectionPool::kConnectionStateUnknown;
};
} // namespace connection_pool_asio
} // namespace executor
} // namespace mongo
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