2 * Copyright (C) 2012 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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26 #ifndef BlockingResponseMap_h
27 #define BlockingResponseMap_h
29 #include <wtf/HashMap.h>
30 #include <wtf/OwnPtr.h>
31 #include <wtf/PassOwnPtr.h>
32 #include <wtf/ThreadingPrimitives.h>
35 class BlockingResponseMap {
37 PassOwnPtr<T> waitForResponse(uint64_t requestID)
40 MutexLocker locker(m_mutex);
42 if (OwnPtr<T> response = m_responses.take(requestID))
43 return response.release();
45 m_condition.wait(m_mutex);
51 void didReceiveResponse(uint64_t requestID, PassOwnPtr<T> response)
53 MutexLocker locker(m_mutex);
54 ASSERT(!m_responses.contains(requestID));
56 m_responses.set(requestID, response);
62 ThreadCondition m_condition;
64 HashMap<uint64_t, OwnPtr<T> > m_responses;
67 #endif // BlockingResponseMap_h