Mercurial > hg > truffle
view 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 |
line wrap: on
line source
/* * 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(); } }