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 org.graalvm.compiler.debug.internal; 24 25 /** 26 * A name and index for a value managed in a thread local value map. All access to the value is made 27 * via a {@link DebugValue} instance. 28 */ 29 public abstract class DebugValue implements Comparable<DebugValue> { 30 31 private final String name; 32 private int index; 33 private boolean conditional; 34 35 protected DebugValue(String name, boolean conditional) { 36 this.name = name; 37 this.index = -1; 38 this.conditional = conditional; 39 } 40 41 public long getCurrentValue() { 42 ensureInitialized(); 43 return DebugScope.getInstance().getCurrentValue(index); 44 } 45 46 protected void setCurrentValue(long l) { 47 ensureInitialized(); 48 DebugScope.getInstance().setCurrentValue(index, l); 49 } 50 51 public void setConditional(boolean flag) { 52 conditional = flag; 53 } 54 55 public boolean isConditional() { 56 return conditional; 57 } 58 59 private void ensureInitialized() { 60 if (index == -1) { 61 index = KeyRegistry.register(this); 62 } 63 } 64 65 protected void addToCurrentValue(long value) { 66 setCurrentValue(getCurrentValue() + value); 67 } 68 69 /** 70 * Gets the globally unique index for the value represented by this object. 71 */ 72 public int getIndex() { 73 ensureInitialized(); 74 return index; 75 } 76 77 /** 78 * Gets the globally unique name for the value represented by this object. 79 */ 80 public String getName() { 81 return name; 82 } 83 84 @Override 85 public int compareTo(DebugValue o) { 86 return name.compareTo(o.name); 87 } 88 89 @Override 90 public String toString() { 91 return name + "@" + index; 92 } 93 94 public abstract String toString(long value); 95 96 /** 97 * The raw unit of the value (e.g. 'us', 'ms'). Use {@code ""} if there is no unit. 98 */ 99 public abstract String rawUnit(); 100 101 /** 102 * The raw value. 103 */ 104 public abstract String toRawString(long value); 105 }