1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * ident "%Z%%M% %I% %E% SMI" 27 */ 28 package org.opensolaris.os.dtrace; 29 30 import java.util.EventObject; 31 32 /** 33 * An event indicating a state change in a DTrace {@link Consumer}. 34 * 35 * @see ConsumerListener 36 * 37 * @author Tom Erickson 38 */ 39 public class ConsumerEvent extends EventObject { 40 static final long serialVersionUID = 1659441401142401810L; 41 42 /** @serial */ 43 private long timestamp; 44 45 /** 46 * Creates a consumer event with the given source {@link Consumer} 47 * and nanosecond timestamp. 48 * 49 * @param source the {@link Consumer} that is the source of the 50 * event 51 * @param timeNanos nanosecond timestamp of this event 52 */ 53 public 54 ConsumerEvent(Object source, long timeNanos) 55 { 56 super(source); 57 timestamp = timeNanos; 58 } 59 60 /** 61 * Gets the nanosecond timestamp of this event. 62 * 63 * @return nanosecond timestamp of the event on the system where the 64 * consumer opened a native DTrace library handle 65 */ 66 public long 67 getTimestamp() 68 { 69 return timestamp; 70 } 71 } 72