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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "configkeyset.h"
#include "configsnapshot.h"
#include <vespa/config/subscription/configsubscriptionset.h>
namespace config {
/**
* The FixedConfigSubscriber takes an entires set of keys and subscribes to
* all of them. Once this is done, it cannot be resubscribed.
*/
class FixedConfigSubscriber
{
public:
FixedConfigSubscriber(const ConfigKeySet & keySet, std::shared_ptr<IConfigContext> context, vespalib::duration subscribeTimeout);
bool nextGeneration(vespalib::duration timeout);
void close();
int64_t getGeneration() const;
ConfigSnapshot getConfigSnapshot() const;
private:
ConfigSubscriptionSet _set;
std::vector<std::shared_ptr<ConfigSubscription>> _subscriptionList;
};
} // namespace config
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