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RWLock.h
Package: RWLock.zip　[view]
Upload User: jnsxzc
Upload Date: 2007-01-03
Package Size: 25k
Code Size: 1k
Category:

Process-Thread

Development Platform:

Visual C++

RWLock.h：Code Content
  1. // RWLock.h: interface for the CRWLock class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  5. #if !defined(AFX_RWLOCK_H__0F267374_9905_11D3_8D3E_00105AAA7BB6__INCLUDED_)
  6. #define AFX_RWLOCK_H__0F267374_9905_11D3_8D3E_00105AAA7BB6__INCLUDED_
  8. #if _MSC_VER > 1000
  9. #pragma once
  10. #endif // _MSC_VER > 1000
  12. class CRWLock  
  13. {
  14. public:
  15. int unlockWrite();
  16. int lockWrite();
  17. int unlockRead();
  18. int lockRead();
  20. CRWLock();
  21. virtual ~CRWLock();
  23. ////// Accessor functions
  24. int getWaitingWriters();
  25. int getWaitingReaders();
  26. int getLockCount();
  28. private:
  29. // Disallow copies of read write lock via copy and assignment
  30. CRWLock(const CRWLock&);
  31. operator =(const CRWLock &);
  33. int waitingWriter();
  34. int incrementWriters();
  35. int decrementWriters();
  37. int waitingReader();
  38. int incrementReaders();
  39. int decrementReaders();
  41. int m_nLockCount;
  43. int m_nWaitingWriters;
  44. int m_nWaitingReaders;
  46. HANDLE m_hReaderEvent;
  47. HANDLE m_hWriterEvent;
  48. HANDLE m_hLockCountMutex;
  49. };
  51. #endif // !defined(AFX_RWLOCK_H__0F267374_9905_11D3_8D3E_00105AAA7BB6__INCLUDED_)