Mercurial > hg > truffle
comparison graal/com.oracle.jvmci.debug/src/com/oracle/jvmci/debug/DebugMetric.java @ 21554:b1530a6cce8c
renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 26 May 2015 23:21:15 +0200 |
parents | graal/com.oracle.graal.debug/src/com/oracle/graal/debug/DebugMetric.java@a7f216accfb5 |
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21553:0910a9497b02 | 21554:b1530a6cce8c |
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1 /* | |
2 * Copyright (c) 2012, 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 package com.oracle.jvmci.debug; | |
24 | |
25 /** | |
26 * A counter for some value of interest. | |
27 */ | |
28 public interface DebugMetric { | |
29 | |
30 /** | |
31 * Adds 1 to this counter if metering is {@link Debug#isMeterEnabled() enabled} or this is an | |
32 * {@linkplain #isConditional() unconditional} metric. | |
33 */ | |
34 void increment(); | |
35 | |
36 /** | |
37 * Adds {@code value} to this counter if metering is {@link Debug#isMeterEnabled() enabled} or | |
38 * this is an {@linkplain #isConditional() unconditional} metric. | |
39 */ | |
40 void add(long value); | |
41 | |
42 /** | |
43 * Sets a flag determining if this counter is only enabled if metering is | |
44 * {@link Debug#isMeterEnabled() enabled}. | |
45 */ | |
46 void setConditional(boolean flag); | |
47 | |
48 /** | |
49 * Determines if this counter is only enabled if metering is {@link Debug#isMeterEnabled() | |
50 * enabled}. | |
51 */ | |
52 boolean isConditional(); | |
53 | |
54 /** | |
55 * Gets the current value of this metric. | |
56 */ | |
57 long getCurrentValue(); | |
58 | |
59 /** | |
60 * Determines if this counter is enabled (either conditionally or unconditionally). | |
61 */ | |
62 default boolean isEnabled() { | |
63 return !isConditional() || Debug.isMeterEnabled(); | |
64 } | |
65 } |