/*
* Copyright 2014-2017 Real Logic Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.aeron.driver.media;
import org.agrona.nio.TransportPoller;
import java.nio.channels.SelectionKey;
/**
* Encapsulates the polling of a number of {@link UdpChannelTransport}s using whatever means provides the lowest latency.
*/
public abstract class UdpTransportPoller extends TransportPoller
{
/**
* Explicit event loop processing as a poll
*
* @return the number of frames processed.
*/
public abstract int pollTransports();
/**
* Register channel for read.
*
* @param transport to associate with read
* @return SelectionKey for registration for cancel
*/
public abstract SelectionKey registerForRead(UdpChannelTransport transport);
/**
* Cancel previous registration.
*
* @param transport to cancel read for
*/
public abstract void cancelRead(UdpChannelTransport transport);
}