1 /*
   2  * Copyright (c) 2012, 2014, 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.core;
  24 
  25 import org.graalvm.compiler.core.CompilerThreadFactory.DebugConfigAccess;
  26 import org.graalvm.compiler.debug.DebugConfig;
  27 import org.graalvm.compiler.debug.DebugDumpHandler;
  28 import org.graalvm.compiler.debug.GraalDebugConfig;
  29 
  30 /**
  31  * A compiler thread is a daemon thread that runs at {@link Thread#MAX_PRIORITY} and executes in the
  32  * context of a thread-local {@linkplain GraalDebugConfig debug configuration}.
  33  */
  34 public class CompilerThread extends Thread {
  35 
  36     private final DebugConfigAccess debugConfigAccess;
  37 
  38     public CompilerThread(Runnable r, String namePrefix, DebugConfigAccess debugConfigAccess) {
  39         super(r);
  40         this.setName(namePrefix + "-" + this.getId());
  41         this.setPriority(Thread.MAX_PRIORITY);
  42         this.setDaemon(true);
  43         this.debugConfigAccess = debugConfigAccess;
  44     }
  45 
  46     @Override
  47     public void run() {
  48         DebugConfig debugConfig = debugConfigAccess.getDebugConfig();
  49         setContextClassLoader(getClass().getClassLoader());
  50         try {
  51             super.run();
  52         } finally {
  53             if (debugConfig != null) {
  54                 for (DebugDumpHandler dumpHandler : debugConfig.dumpHandlers()) {
  55                     try {
  56                         dumpHandler.close();
  57                     } catch (Throwable t) {
  58                     }
  59                 }
  60             }
  61         }
  62     }
  63 }