Mercurial > hg > graal-compiler
diff graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/logging/Logger.java @ 21551:5324104ac4f3
moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 26 May 2015 17:13:37 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/logging/Logger.java Tue May 26 17:13:37 2015 +0200 @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.jvmci.hotspot.logging; + +import java.io.*; +import java.lang.reflect.*; +import java.util.*; + +import com.oracle.graal.debug.*; +import com.oracle.jvmci.hotspot.*; + +/** + * Scoped logging class used to display the call hierarchy of {@link CompilerToVM} calls. + */ +public class Logger { + + public static final boolean ENABLED = Boolean.valueOf(System.getProperty("graal.debug")); + private static final int SPACING = 4; + private static final ThreadLocal<Logger> loggerTL; + + private Deque<Boolean> openStack = new LinkedList<>(); + private boolean open = false; + private int level = 0; + + private static final PrintStream out; + + static { + if (ENABLED) { + loggerTL = new ThreadLocal<Logger>() { + + @Override + protected Logger initialValue() { + return new Logger(); + } + }; + } else { + loggerTL = null; + } + + PrintStream ps = null; + String filename = System.getProperty("graal.info_file"); + if (filename != null && !"".equals(filename)) { + try { + ps = new PrintStream(new FileOutputStream(filename)); + } catch (FileNotFoundException e) { + e.printStackTrace(); + ps = null; + } + } + out = ps; + if (out != null) { + out.println("start: " + new Date()); + } + } + + public static void info(String message) { + if (ENABLED) { + log(message); + } else { + TTY.println(message); + } + if (out != null) { + out.println(message); + out.flush(); + } + } + + public static void log(String message) { + if (ENABLED) { + Logger logger = loggerTL.get(); + for (String line : message.split("\n")) { + if (logger.open) { + TTY.println("..."); + logger.open = false; + } + TTY.print(space(logger.level)); + TTY.println(line); + } + } + } + + public static void startScope(String message) { + if (ENABLED) { + Logger logger = loggerTL.get(); + if (logger.open) { + TTY.println("..."); + logger.open = false; + } + TTY.print(space(logger.level)); + TTY.print(message); + logger.openStack.push(logger.open); + logger.open = true; + logger.level++; + } + } + + public static void endScope(String message) { + if (ENABLED) { + Logger logger = loggerTL.get(); + logger.level--; + if (logger.open) { + TTY.println(message); + } else { + TTY.println(space(logger.level) + "..." + message); + } + logger.open = logger.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 && (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(); + } + int length = Array.getLength(value); + str.append(klass.getSimpleName()).append('[').append(length).append(']'); + for (int i = 1; i < dimensions; i++) { + str.append("[]"); + } + str.append(" {"); + for (int i = 0; i < length; i++) { + str.append(pretty(Array.get(value, i))); + if (i < length - 1) { + str.append(", "); + } + } + str.append('}'); + return str.toString(); + } + + return value.toString(); + } +}