1/*
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 */
26
27#ifndef MessageChannel_h
28#define MessageChannel_h
29
30#include <wtf/PassRefPtr.h>
31#include <wtf/RefCounted.h>
32#include <wtf/RefPtr.h>
33
34namespace WebCore {
35
36    class MessagePort;
37    class ScriptExecutionContext;
38
39    class MessageChannel : public RefCounted<MessageChannel> {
40    public:
41        static PassRefPtr<MessageChannel> create(ScriptExecutionContext* context) { return adoptRef(new MessageChannel(context)); }
42        ~MessageChannel();
43
44        MessagePort* port1() const { return m_port1.get(); }
45        MessagePort* port2() const { return m_port2.get(); }
46
47    private:
48        MessageChannel(ScriptExecutionContext*);
49
50        RefPtr<MessagePort> m_port1;
51        RefPtr<MessagePort> m_port2;
52    };
53
54} // namespace WebCore
55
56#endif // MessageChannel_h
57