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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 "configkey.h"
#include <vespa/vespalib/util/time.h>
namespace config {
class ConfigSubscription;
struct SubscribeHandler
{
/**
* Subscribes to a spesific config given by a subscription.
* If the subscribe call is successful, the callback handler will be called
* with the new config.
*
* @param key the subscription key to subscribe to.
* @param timeout the timeout of the subscribe call.
* @return subscription object containing data relevant to client
*/
virtual std::shared_ptr<ConfigSubscription> subscribe(const ConfigKey & key, vespalib::duration timeout) = 0;
virtual ~SubscribeHandler() = default;
};
}
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