1/*
2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25package com.sun.hotspot.tools.compiler;
26
27import java.io.PrintStream;
28
29/**
30 * The interface of an event from a HotSpot compilation log. Events can have a
31 * duration, e.g., a compiler {@link Phase} is an event, and so is an entire
32 * {@link Compilation}.
33 */
34public interface LogEvent {
35
36    /**
37     * The event's start time.
38     */
39    public double getStart();
40
41    /**
42     * The event's duration in milliseconds.
43     */
44    public double getElapsedTime();
45
46    /**
47     * The compilation during which this event was signalled.
48     */
49    public Compilation getCompilation();
50
51    /**
52     * Print the event to the given stream.
53     */
54    public void print(PrintStream stream, boolean printID);
55}
56