Quelle SocketEvent.java Sprache: JAVA

/*
*  Licensed to the Apache Software Foundation (ASF) under one or more
*  contributor license agreements.  See the NOTICE file distributed with
*  this work for additional information regarding copyright ownership.
*  The ASF licenses this file to You 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.apache.tomcat.util.net;

/**
* Defines events that occur per socket that require further processing by the
* container. Usually these events are triggered by the socket implementation
* but they may be triggered by the container.
*/
public enum SocketEvent {

    /**
     * Data is available to be read.
     */
    OPEN_READ,

    /**
     * The socket is ready to be written to.
     */
    OPEN_WRITE,

    /**
     * The associated Connector/Endpoint is stopping and the connection/socket
     * needs to be closed cleanly.
     */
    STOP,

    /**
     * A timeout has occurred and the connection needs to be closed cleanly.
     * Currently this is only used by the Servlet 3.0 async processing.
     */
    TIMEOUT,

    /**
     * The client has disconnected.
     */
    DISCONNECT,

    /**
     * An error has occurred on a non-container thread and processing needs to
     * return to the container for any necessary clean-up. Examples of where
     * this is used include:
     * <ul>
     * <li>by NIO2 to signal the failure of a completion handler</li>
     * <li>by the container to signal an I/O error on a non-container thread
     *     during Servlet 3.0 asynchronous processing.</li>
     * </ul>
     */
    ERROR,

    /**
     * A client attempted to establish a connection but failed. Examples of
     * where this is used include:
     * <ul>
     * <li>TLS handshake failures</li>
     * </ul>
     */
    CONNECT_FAIL
}

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