Source code of Windows XP (NT5)
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/*===================================================================
Microsoft Denali
Microsoft Confidential.Copyright 1997 Microsoft Corporation. All Rights Reserved.
Component: ID Generator
File: IdGener.h
Owner: DmitryR
This file contains the declarations for the ID Generator class===================================================================*/#ifndef IDGENER_H
#define IDGENER_H
#define INVALID_ID 0xFFFFFFFF
class CIdGenerator {private: BOOL m_fInited; // Initialized?
CRITICAL_SECTION m_csLock; // Synchronize access
DWORD m_dwStartId; // Starting (seed) Id
DWORD m_dwLastId; // Last Generated Id
public: CIdGenerator(); ~CIdGenerator(); public: HRESULT Init(); HRESULT Init(CIdGenerator & StartId); DWORD NewId(); BOOL IsValidId(DWORD dwId); };
#endif // IDGENER_H
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