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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "connectionfactory.h"
#include "frtconfigagent.h"
#include "frtconfigrequestfactory.h"
#include <vespa/config/common/configkey.h>
#include <vespa/config/common/configrequest.h>
#include <vespa/config/common/source.h>
#include <vespa/fnet/frt/invoker.h>
#include <vespa/vespalib/util/sync.h>
namespace config {
/**
* Class for sending and receiving config requests via FRT.
*/
class FRTSource : public Source,
public FRT_IRequestWait
{
public:
FRTSource(const ConnectionFactory::SP & connectionFactory, const FRTConfigRequestFactory & requestFactory, ConfigAgent::UP agent, const ConfigKey & key);
~FRTSource();
void RequestDone(FRT_RPCRequest * request) override;
void close() override;
void reload(int64_t generation) override;
void getConfig() override;
const FRTConfigRequest & getCurrentRequest() const;
private:
void scheduleNextGetConfig();
ConnectionFactory::SP _connectionFactory;
const FRTConfigRequestFactory & _requestFactory;
ConfigAgent::UP _agent;
FRTConfigRequest::UP _currentRequest;
const ConfigKey _key;
std::unique_ptr<FNET_Task> _task;
vespalib::Lock _lock; // Protects _task and _closed
bool _closed;
};
} // namespace config
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