semaphore.h

   1 //+----------------------------------------------------------------------------
   2 //
   3 // File:     semaphore.h
   4 //
   5 // Module:
   6 //
   7 // Synopsis:
   8 //
   9 // Author:       sgasch
  10 //
  11 // Created    8 Jun 1999
  12 //
  13 //+----------------------------------------------------------------------------
  14
  15 #ifndef _LOCK
  16 #define _LOCK
  17
  18 class CCriticalSection
  19 {
  20
  21 public:
  22         CCriticalSection(void);
  23         CCriticalSection(int iNumThreads);
  24         ~CCriticalSection(void);
  25         bool GetNumberConcurrentThreads(int *piAnswer);
  26         bool SetNumberConcurrentThreads(int iNumber);
  27         bool TryToEnter(void);
  28         bool Enter(void);
  29         bool Leave(void);
  30
  31 private:
  32
  33         bool CreateSemaphore(void);
  34         bool RemoveSemaphore(void);
  35
  36         int m_hSem;
  37         bool m_fInitialized;
  38 };
  39
  40 #endif // _LOCK
  41
  42
  43
  44