Leaked source code of windows server 2003
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//+----------------------------------------------------------------------------
//
// File: connstat.h
//
// Module: CMMON32.EXE
//
// Synopsis: Header for the CConnStatistics class.
//
// Copyright (c) 1998-1999 Microsoft Corporation
//
// Author: quintinb Created Header 08/16/99
//
//+----------------------------------------------------------------------------
#ifndef CONNSTAT_H
#define CONNSTAT_H
#include <windows.h>
#include <ras.h>
#include <tapi.h>
#include "RasApiDll.h"
#include "SmplRing.h"
//+---------------------------------------------------------------------------
//
// class CConnStatistics
//
// Description: A class to collect connection statistics
// OpenByPerformanceKey() will start gathering data from registry
// OpenByDevice will gathering data from TAPI device handle
//
// History: fengsun 10/01/97 Created
// nickball 03/04/00 Heavily revised for NT5 usage
//
//----------------------------------------------------------------------------
class CConnStatistics
{
public:
CConnStatistics();
~CConnStatistics();
void Update(); // Update the statistics
DWORD GetBytesPerSecRead() const;
DWORD GetBytesPerSecWrite() const;
DWORD GetBytesRead() const;
DWORD GetBytesWrite() const;
DWORD GetBaudRate() const;
DWORD GetDuration() const;
void Open(HINSTANCE hInst,
DWORD dwInitBytesRecv,
DWORD dwInitBytesSend,
HRASCONN hRasDial,
HRASCONN hRAsTunnel);
void Close(); // No more statistic information
void SetDialupTwo(BOOL fAdapter2);
DWORD GetInitBytesRead() const;
DWORD GetInitBytesWrite() const;
BOOL IsAvailable() const; // whether statistic information is available
protected:
void OpenByStatisticsApi(DWORD dwInitBytesRecv,
DWORD dwInitBytesSend,
HRASCONN hDial,
HRASCONN hTunnel);
void OpenByPerformanceKey(HINSTANCE hInst,
DWORD dwInitBytesRecv,
DWORD dwInitBytesSend);
BOOL OpenByDevice(HRASCONN hrcRasConn);
BOOL GetDeviceHandle(HRASCONN hrcRasConn);
BOOL GetPerfData(DWORD& dwRead, DWORD& dwWrite, DWORD& dwBaudRate) const;
BOOL GetTapiDeviceStats(DWORD& dwRead, DWORD& dwWrite, DWORD& dwBaudRate) const;
void GetStatRegValues(HINSTANCE hInst);
protected:
struct CTraffic
{
DWORD dwRead;
DWORD dwWrite;
DWORD dwTime; // time in minisecond
};
enum {STAT_COUNT = 3};
CSimpleRing<CTraffic, STAT_COUNT> m_TrafficRing;
DWORD m_dwReadPerSecond;
DWORD m_dwWritePerSecond;
DWORD m_dwBaudRate;
DWORD m_dwDuration;
HANDLE m_hStatDevice; // the TAPI device handle
HRASCONN m_hRasConn; // the RAS connection handle
// For DUN 1.2, ICM uses perfmon counters for connection status data
// however, these perfmon counters such as TotalBytesReceived are from last reboot
// so we need to record the initial data in order to get correct value for this
// particular connection
HKEY m_hKey; // Performance registry handle
DWORD m_dwInitBytesRead;
DWORD m_dwInitBytesWrite;
//
// Registry names are different for PPP and PPTP
//
BOOL m_fAdapter2;
BOOL m_fAdapterSet;
//
// Localized version of
// "Dial-up Adapter"\TotalBytesRecvd"
// "Dial-up Adapter"\TotalBytesXmit"
// "Dial-up Adapter"\ConnectSpeed"
//
LPTSTR m_pszTotalBytesRecvd;
LPTSTR m_pszTotalBytesXmit;
LPTSTR m_pszConnectSpeed;
// The link to rasapi32
CRasApiDll m_RasApiDll;
public:
#ifdef DEBUG
void AssertValid() const;
#endif
};
//
// Inline functions
//
inline DWORD CConnStatistics::GetInitBytesRead() const
{
return m_dwInitBytesRead;
}
inline DWORD CConnStatistics::GetInitBytesWrite() const
{
return m_dwInitBytesWrite;
}
inline void CConnStatistics::SetDialupTwo(BOOL fAdapter2)
{
m_fAdapterSet = TRUE;
m_fAdapter2 = fAdapter2;
}
inline DWORD CConnStatistics::GetBytesPerSecRead() const
{
return m_dwReadPerSecond;
}
inline DWORD CConnStatistics::GetBytesPerSecWrite() const
{
return m_dwWritePerSecond;
}
inline DWORD CConnStatistics::GetDuration() const
{
return OS_NT5 ? (m_dwDuration) : 0;
}
inline DWORD CConnStatistics::GetBytesRead() const
{
return m_TrafficRing.GetLatest().dwRead;
}
inline DWORD CConnStatistics::GetBytesWrite() const
{
return m_TrafficRing.GetLatest().dwWrite;
}
inline BOOL CConnStatistics::IsAvailable() const
{
return OS_NT5 ? (m_hRasConn && m_RasApiDll.IsLoaded()) : (m_hKey || m_hStatDevice);
}
inline DWORD CConnStatistics::GetBaudRate() const
{
return m_dwBaudRate;
}
#endif