Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/debug/IdealGraphPrinterObserver.java @ 2699:a51ef0310dad
Document new IdealGraphPrinterObserver constructors
author | Peter Hofer <peter.hofer@jku.at> |
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date | Wed, 18 May 2011 15:17:17 +0200 |
parents | b179be22a3db |
children | b003ea36fa12 |
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/* * Copyright (c) 2011, 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.sun.c1x.debug; import java.io.*; import java.net.*; import java.util.regex.*; import com.oracle.graal.graph.*; import com.sun.c1x.*; import com.sun.c1x.observer.*; import com.sun.c1x.value.*; /** * Observes compilation events and uses {@link IdealGraphPrinter} to generate a graph representation that can be * inspected with the <a href="http://kenai.com/projects/igv">Ideal Graph Visualizer</a>. * * @author Peter Hofer */ public class IdealGraphPrinterObserver implements CompilationObserver { private static final Pattern INVALID_CHAR = Pattern.compile("[^A-Za-z0-9_.-]"); private final String host; private final int port; private IdealGraphPrinter printer; private OutputStream stream; private Socket socket; /** * Creates a new {@link IdealGraphPrinterObserver} that writes output to a file named after the compiled method. */ public IdealGraphPrinterObserver() { this(null, -1); } /** * Creates a new {@link IdealGraphPrinterObserver} that sends output to a remove IdealGraphVisualizer instance. */ public IdealGraphPrinterObserver(String host, int port) { this.host = host; this.port = port; } @Override public void compilationStarted(CompilationEvent event) { assert (stream == null && printer == null); if (!TTY.isSuppressed()) { String name = event.getMethod().holder().name(); name = name.substring(1, name.length() - 1).replace('/', '.'); name = name + "." + event.getMethod().name(); if (host != null) { openNetworkPrinter(name); } else { openFilePrinter(name); } } } private void openFilePrinter(String name) { String filename = name + ".igv.xml"; filename = INVALID_CHAR.matcher(filename).replaceAll("_"); try { stream = new FileOutputStream(filename); printer = new IdealGraphPrinter(stream); if (C1XOptions.OmitDOTFrameStates) { printer.addOmittedClass(FrameState.class); } printer.begin(); printer.beginGroup(name, name, -1); } catch (IOException e) { e.printStackTrace(); } } private void openNetworkPrinter(String name) { try { socket = new Socket(host, port); if (socket.getInputStream().read() == 'y') { stream = socket.getOutputStream(); } else { // server currently does not accept any input socket.close(); socket = null; return; } printer = new IdealGraphPrinter(stream); if (C1XOptions.OmitDOTFrameStates) { printer.addOmittedClass(FrameState.class); } printer.begin(); printer.beginGroup(name, name, -1); printer.flush(); if (socket.getInputStream().read() != 'y') { // server declines input for this method socket.close(); socket = null; stream = null; printer = null; } } catch (IOException e) { e.printStackTrace(); if (socket != null) { try { socket.close(); } catch (IOException ioe) { } socket = null; } stream = null; printer = null; } } @Override public void compilationEvent(CompilationEvent event) { if (printer != null && event.getStartBlock() != null) { Graph graph = event.getStartBlock().graph(); printer.print(graph, event.getLabel(), true); } } @Override public void compilationFinished(CompilationEvent event) { if (printer != null) { try { printer.endGroup(); printer.end(); if (socket != null) { socket.close(); // also closes stream } else { stream.close(); } } catch (IOException e) { e.printStackTrace(); } finally { printer = null; stream = null; socket = null; } } } }