1 /*
   2  * Copyright (c) 2011, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.lwawt.macosx;
  27 
  28 import sun.awt.Mutex;
  29 import sun.awt.datatransfer.ToolkitThreadBlockedHandler;
  30 
  31 final class CToolkitThreadBlockedHandler extends Mutex implements ToolkitThreadBlockedHandler {
  32     private long awtRunLoopMediator = 0;
  33     private final boolean processEvents;
  34 
  35     public CToolkitThreadBlockedHandler() {
  36         this(true);
  37     }
  38 
  39     CToolkitThreadBlockedHandler(boolean processEvents) {
  40         super();
  41         this.processEvents = processEvents;
  42     }
  43 
  44     public void enter() {
  45         if (!isOwned()) {
  46             throw new IllegalMonitorStateException();
  47         }
  48         awtRunLoopMediator = LWCToolkit.createAWTRunLoopMediator();
  49         unlock();
  50         LWCToolkit.doAWTRunLoop(awtRunLoopMediator, processEvents);
  51         lock();
  52     }
  53 
  54     public void exit() {
  55         if (!isOwned()) {
  56             throw new IllegalMonitorStateException();
  57         }
  58         LWCToolkit.stopAWTRunLoop(awtRunLoopMediator);
  59         awtRunLoopMediator = 0;
  60     }
  61 }