Mercurial > hg > truffle
diff c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/logging/Logger.java @ 1423:760213a60e8b
* rewrite of the code installation
* partial support for safepoints
* macro-based CiTargetMethod interface
* code stub support
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Mon, 16 Aug 2010 18:59:36 -0700 |
parents | c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/Logger.java@3483ec571caf |
children | abc670a709dc |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/logging/Logger.java Mon Aug 16 18:59:36 2010 -0700 @@ -0,0 +1,150 @@ +/* + * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. + * + * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is + * described in this document. In particular, and without limitation, these intellectual property rights may include one + * or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent + * applications in the U.S. and in other countries. + * + * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc. standard + * license agreement and applicable provisions of the FAR and its supplements. + * + * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or registered + * trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and + * are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries. + * + * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd. + */ +package com.sun.hotspot.c1x.logging; + +import java.io.*; +import java.lang.reflect.*; +import java.util.*; +/** + * Scoped logging class used to display the call hierarchy of VMEntries/VMExits calls + * + * @author Lukas Stadler + */ +public class Logger { + + private static final boolean ENABLED = true; + private static final int SPACING = 4; + private static Deque<Boolean> openStack = new LinkedList<Boolean>(); + private static boolean open = false; + private static int level = 0; + + private final static PrintStream out; + + static { + PrintStream ps; + try { + ps = new PrintStream(new FileOutputStream("output.txt")); + } catch (FileNotFoundException e) { + e.printStackTrace(); + ps = null; + } + out = ps; + out.println("start: " + new Date()); + } + + public static void info(String message) { + log(message); + out.println(message); + out.flush(); + } + + public static void log(String message) { + if (ENABLED) { + for (String line : message.split("\n")) { + if (open) { + System.out.println("..."); + open = false; + } + System.out.print(space(level)); + System.out.println(line); + } + } + } + + public static void startScope(String message) { + if (ENABLED) { + if (open) { + System.out.println("..."); + open = false; + } + System.out.print(space(level)); + System.out.print(message); + openStack.push(open); + open = true; + level++; + } + } + + public static void endScope(String message) { + if (ENABLED) { + level--; + if (open) + System.out.println(message); + else + System.out.println(space(level) + "..." + message); + open = openStack.pop(); + } + } + + private static String[] spaces = new String[50]; + + private static String space(int count) { + assert count >= 0; + String result; + if (count >= spaces.length || spaces[count] == null) { + StringBuilder str = new StringBuilder(); + for (int i = 0; i < count * SPACING; i++) + str.append(' '); + result = str.toString(); + if (count < spaces.length) + spaces[count] = result; + } else { + result = spaces[count]; + } + return result; + } + + public static String pretty(Object value) { + if (value == null) { + return "null"; + } + + Class<?> klass = value.getClass(); + if (value instanceof Void) { + return "void"; + } else if (value instanceof String) { + return "\"" + value + "\""; + } else if (value instanceof Method) { + return "method \"" + ((Method) value).getName() + "\""; + } else if (value instanceof Class<?>) { + return "class \"" + ((Class<?>) value).getSimpleName() + "\""; + } else if (value instanceof Integer) { + if ((Integer) value < 10) + return value.toString(); + return value + " (0x" + Integer.toHexString((Integer) value) + ")"; + } else if (value instanceof Long) { + if ((Long) value < 10) + return value + "l"; + return value + "l (0x" + Long.toHexString((Long) value) + "l)"; + } else if (klass.isArray()) { + StringBuilder str = new StringBuilder(); + int dimensions = 0; + while (klass.isArray()) { + dimensions++; + klass = klass.getComponentType(); + } + str.append(klass.getSimpleName()).append('[').append(Array.getLength(value)).append(']'); + for (int i = 1; i < dimensions; i++) { + str.append("[]"); + } + return str.toString(); + } + + return value.toString(); + } +}