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annotate graal/com.oracle.max.graal.debug/src/com/oracle/graal/debug/internal/TimerImpl.java @ 5059:ed559a528128

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author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 17:57:30 +0100
parents graal/com.oracle.max.graal.debug/src/com/oracle/max/graal/debug/internal/TimerImpl.java@961895157a38
children 4ed4295ce15f
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1 /*
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2 * Copyright (c) 2012, 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.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.max.graal.debug.internal;
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24
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25 import com.oracle.max.graal.debug.*;
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26
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27 public final class TimerImpl extends DebugValue implements DebugTimer {
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28
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29 public static final TimerCloseable VOID_CLOSEABLE = new TimerCloseable() {
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30 @Override
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31 public void close() {
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32 }
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33 };
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34
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35 public TimerImpl(String name) {
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36 super(name);
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37 }
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38
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39 @Override
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40 public TimerCloseable start() {
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41 if (Debug.isTimeEnabled()) {
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42 final long startTime = System.currentTimeMillis();
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43 return new TimerCloseable() {
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44 @Override
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45 public void close() {
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46 long timeSpan = System.currentTimeMillis() - startTime;
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47 TimerImpl.this.addToCurrentValue(timeSpan);
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48 }
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49 };
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50 } else {
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51 return VOID_CLOSEABLE;
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52 }
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53 }
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54 }