org.xnio.channels.SuspendableAcceptChannel Maven / Gradle / Ivy
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*
* Copyright 2010 Red Hat, Inc. and/or its affiliates.
*
* 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 org.xnio.channels;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.util.concurrent.TimeUnit;
import org.xnio.ChannelListener;
import org.xnio.XnioExecutor;
import org.xnio.XnioIoThread;
/**
* A suspendable accept channel. This type of channel is associated with a listener which can suspend and resume
* accepting connections as needed.
*
* @since 3.0
*/
public interface SuspendableAcceptChannel extends CloseableChannel {
/**
* Suspend further read notifications on this channel.
*/
void suspendAccepts();
/**
* Resume reads on this channel. The accept listener will be
* called as soon as there is a connection available to be accepted.
*/
void resumeAccepts();
/**
* Determine whether accepts are resumed.
*
* @return {@code true} if accepts are resumed, {@code false} if accepts are suspended
*/
boolean isAcceptResumed();
/**
* {@link #resumeAccepts()} Resume accepts} on this channel, and force the accept listener to be triggered even if the
* channel isn't actually ready.
*
* @deprecated Users should instead submit {@code Runnable} tasks to the channel thread when this functionality is needed.
*/
@Deprecated
void wakeupAccepts();
/**
* Block until this channel becomes acceptable again. This method may return spuriously
* before the channel becomes acceptable.
*
* @throws InterruptedIOException if the operation is interrupted; the thread's interrupt flag will be set as well
* @throws IOException if an I/O error occurs
*/
void awaitAcceptable() throws IOException;
/**
* Block until this channel becomes acceptable again, or until the timeout expires. This method may return spuriously
* before the channel becomes acceptable or the timeout expires.
*
* @param time the time to wait
* @param timeUnit the time unit
* @throws InterruptedIOException if the operation is interrupted; the thread's interrupt flag will be set as well
* @throws IOException if an I/O error occurs
*/
void awaitAcceptable(long time, TimeUnit timeUnit) throws IOException;
/**
* Get an accept thread for this channel. If more than one is configured, any of them may be returned.
*
* @return the thread
* @deprecated The {@link #getIoThread()} method should be used instead.
*/
@Deprecated
XnioExecutor getAcceptThread();
/**
* Get an accept thread for this channel. If more than one is configured, any of them may be returned.
*
* @return the thread
*/
XnioIoThread getIoThread();
/**
* Get the setter which can be used to change the accept listener for this channel.
*
* @return the setter
*/
ChannelListener.Setter getAcceptSetter();
/** {@inheritDoc} */
ChannelListener.Setter getCloseSetter();
}