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annotate graal/com.oracle.truffle.api.object/src/com/oracle/truffle/api/object/DebugCounter.java @ 21110:905d93bb3d31
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author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 23 Apr 2015 17:25:04 -0700 |
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1 /* |
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2 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api.object; |
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26 |
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27 import java.io.*; |
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28 import java.util.*; |
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29 import java.util.concurrent.atomic.*; |
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30 |
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31 public final class DebugCounter { |
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32 private static final ArrayList<DebugCounter> allCounters = new ArrayList<>(); |
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33 |
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34 private final String name; |
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35 private final AtomicLong value; |
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36 |
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37 private DebugCounter(String name) { |
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38 this.name = name; |
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39 this.value = new AtomicLong(); |
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40 allCounters.add(this); |
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41 } |
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42 |
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43 public static DebugCounter create(String name) { |
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44 return new DebugCounter(name); |
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45 } |
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46 |
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47 public long get() { |
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48 return value.get(); |
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49 } |
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50 |
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51 public void inc() { |
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52 value.incrementAndGet(); |
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53 } |
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54 |
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55 @Override |
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56 public String toString() { |
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57 return name + ": " + value; |
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58 } |
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59 |
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60 public static void dumpCounters() { |
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61 dumpCounters(System.out); |
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62 } |
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63 |
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64 public static void dumpCounters(PrintStream out) { |
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65 for (DebugCounter counter : allCounters) { |
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66 out.println(counter); |
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67 } |
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68 } |
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69 } |