1 /*
   2  * Copyright (c) 2011, 2012, 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 com.apple.concurrent;
  27 
  28 import java.util.concurrent.Executor;
  29 
  30 abstract class LibDispatchMainQueue extends LibDispatchQueue implements Executor {
  31         public LibDispatchMainQueue() {
  32                 super(LibDispatchNative.nativeGetMainQueue());
  33         }
  34 
  35         @Override
  36         protected synchronized void dispose() {
  37                 // should not dispose the main queue
  38         }
  39 
  40         static class Sync extends LibDispatchMainQueue {
  41                 @Override
  42                 public void execute(final Runnable task) {
  43                         LibDispatchNative.nativeExecuteSync(ptr, task);
  44                 }
  45         }
  46 
  47         static class ASync extends LibDispatchMainQueue {
  48                 @Override
  49                 public void execute(final Runnable task) {
  50                         LibDispatchNative.nativeExecuteAsync(ptr, task);
  51                 }
  52         }
  53 }