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FXCompletion.h
1 /********************************************************************************
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3 * C o m p l e t i o n C o u n t e r *
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6 * Copyright (C) 2014,2017 by Jeroen van der Zijp. All Rights Reserved. *
7 *********************************************************************************
8 * This library is free software; you can redistribute it and/or modify *
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21 #ifndef FXCOMPLETION_H
22 #define FXCOMPLETION_H
23 
24 
25 namespace FX {
26 
27 
28 class FXThreadPool;
29 
41 class FXAPI FXCompletion {
42 private:
43  FXSemaphore semaphore; // Signalled when last task done
44  volatile FXuint counter; // Task counter
45 private:
46  FXCompletion(const FXCompletion&);
47  FXCompletion& operator=(const FXCompletion&);
48 public:
49 
51  FXCompletion();
52 
54  FXuint count() const { return counter; }
55 
57  void increment(FXuint cnt=1);
58 
60  void decrement(FXuint cnt=1);
61 
63  void wait();
64 
66  FXbool wait(FXTime nsec);
67 
69  FXbool done() const { return (counter==0); }
70 
72  ~FXCompletion();
73  };
74 
75 }
76 
77 #endif
78 

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