1/*
2 * Copyright (C) 2011 Google 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 INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#ifndef WebWorkerRunLoop_h
26#define WebWorkerRunLoop_h
27
28#include "WebCommon.h"
29
30namespace blink {
31
32class WorkerThread;
33
34class WebWorkerRunLoop {
35public:
36    class Task {
37    public:
38        virtual ~Task() { }
39        virtual void Run() = 0;
40    };
41
42    // Returns true if the task was posted to a non-terminated loop.
43    BLINK_EXPORT bool postTask(Task*);
44    BLINK_EXPORT bool equals(const WebWorkerRunLoop&) const;
45    BLINK_EXPORT bool lessThan(const WebWorkerRunLoop&) const;
46
47#if BLINK_IMPLEMENTATION
48    WebWorkerRunLoop(WorkerThread*);
49#endif
50
51private:
52    WorkerThread* m_workerThread;
53};
54
55inline bool operator==(const WebWorkerRunLoop& a, const WebWorkerRunLoop& b)
56{
57    return a.equals(b);
58}
59
60inline bool operator<(const WebWorkerRunLoop& a, const WebWorkerRunLoop& b)
61{
62    return a.lessThan(b);
63}
64
65}
66
67#endif
68