semaphore_windows.hpp revision 13234:28e384fe79fd 
1/*
2 * Copyright (c) 2015, 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
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24
25#ifndef OS_WINDOWS_VM_SEMAPHORE_WINDOWS_HPP
26#define OS_WINDOWS_VM_SEMAPHORE_WINDOWS_HPP
27
28#include "memory/allocation.hpp"
29
30#include <windef.h>
31
32class WindowsSemaphore : public CHeapObj<mtInternal> {
33  HANDLE _semaphore;
34
35  // Prevent copying and assignment.
36  WindowsSemaphore(const WindowsSemaphore&);
37  WindowsSemaphore& operator=(const WindowsSemaphore&);
38
39 public:
40  WindowsSemaphore(uint value = 0);
41  ~WindowsSemaphore();
42
43  void signal(uint count = 1);
44
45  void wait();
46
47  bool trywait();
48};
49
50typedef WindowsSemaphore SemaphoreImpl;
51
52#endif // OS_WINDOWS_VM_SEMAPHORE_WINDOWS_HPP
53