2 * Copyright (C) 2011 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
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11 * documentation and/or other materials provided with the distribution.
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27 #include "BinarySemaphore.h"
31 BinarySemaphore::BinarySemaphore()
32 : m_event(::CreateEventW(0, FALSE, FALSE, 0))
36 BinarySemaphore::~BinarySemaphore()
38 ::CloseHandle(m_event);
41 void BinarySemaphore::signal()
46 bool BinarySemaphore::wait(double absoluteTime)
48 DWORD interval = absoluteTimeToWaitTimeoutInterval(absoluteTime);
50 // Consider the wait to have timed out, even if the event has already been signaled, to
51 // match the WTF::ThreadCondition implementation.
55 DWORD result = ::WaitForSingleObjectEx(m_event, interval, FALSE);
58 // The event was signaled.
62 // The wait timed out.
66 ASSERT_WITH_MESSAGE(false, "::WaitForSingleObjectEx failed with error %lu", ::GetLastError());
69 ASSERT_WITH_MESSAGE(false, "::WaitForSingleObjectEx returned unexpected result %lu", result);