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/*
* ReactorEvent.java February 2007
*
* Copyright (C) 2007, Niall Gallagher <niallg@users.sf.net>
*
* 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.simpleframework.transport.reactor;
/**
* The <code>ReactorEvent</code> enumeration is used for tracing the
* operations that occur within the reactor. This is useful when the
* performance of the system needs to be monitored or when there is a
* resource or memory consumption issue that needs to be debugged.
*
* @author Niall Gallagher
*/
public enum ReactorEvent {
/**
* This event indicates the registration of an I/O interest.
*/
SELECT,
/**
* This indicates that the selected I/O interest has not occurred.
*/
SELECT_EXPIRED,
/**
* This occurs when a selection key is cancelled for all interests.
*/
SELECT_CANCEL,
/**
* This is used to indicate the channel is already selecting.
*/
ALREADY_SELECTING,
/**
* This occurs rarely however it indicates an invalid registration.
*/
INVALID_KEY,
/**
* This occurs upon the initial registration of an I/O interest.
*/
REGISTER_INTEREST,
/**
* This occurs upon the initial registration of a read I/O interest.
*/
REGISTER_READ_INTEREST,
/**
* This occurs upon the initial registration of a write I/O interest.
*/
REGISTER_WRITE_INTEREST,
/**
* This is used to indicate the operation interest changed.
*/
UPDATE_INTEREST,
/**
* This occurs upon the initial registration of a read I/O interest.
*/
UPDATE_READ_INTEREST,
/**
* This occurs upon the initial registration of a write I/O interest.
*/
UPDATE_WRITE_INTEREST,
/**
* This indicates that the I/O interest has been satisfied.
*/
INTEREST_READY,
/**
* This indicates that the I/O read interest has been satisfied.
*/
READ_INTEREST_READY,
/**
* This indicates that the I/O write interest has been satisfied.
*/
WRITE_INTEREST_READY,
/**
* This is the final action of executing the action.
*/
EXECUTE_ACTION,
/**
* This occurs on an attempt to register an closed channel.
*/
CHANNEL_CLOSED,
/**
* This occurs when the selector has been shutdown globally.
*/
CLOSE_SELECTOR,
/**
* This occurs if there is an error with the selection.
*/
ERROR,
}
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