C++ (Cpp) IsAnyUnitDevicesMounted Examples

Example #1

BOOL
CNdasDevice::Enable(BOOL bEnable)
{
	ximeta::CAutoLock autolock(this);

	if (bEnable) 
	{
		//
		// To enable this device
		//
		if (NDAS_DEVICE_STATUS_DISABLED != m_status) 
		{
			return TRUE;
		} 

		//
		// DISABLED -> DISCONNECTED
		//
		ChangeStatus(NDAS_DEVICE_STATUS_DISCONNECTED);
	} 
	else 
	{
		//
		// To disable this device
		//
		if (NDAS_DEVICE_STATUS_DISABLED == m_status) 
		{
			return TRUE;
		} 

		//
		// You cannot disable this device when a unit device is mounted
		//
		if (IsAnyUnitDevicesMounted())
		{
			::SetLastError(NDASHLPSVC_ERROR_CANNOT_DISABLE_MOUNTED_DEVICE);
			return FALSE;
		}

		//
		// DISCONNECTED/CONNECTED -> DISABLED
		//
		ChangeStatus(NDAS_DEVICE_STATUS_DISABLED);
	}

	BOOL fSuccess = _NdasSystemCfg.SetValueEx(
		m_szCfgContainer, 
		TEXT("Enabled"), 
		bEnable);

	if (!fSuccess) 
	{
		DBGPRT_WARN_EX(
			_FT("%s: Writing device enable status to the registry failed at %s:"), 
			ToString(), m_szCfgContainer);
	}

	return TRUE;
}

Example #2

File: ndasdev.cpp Project: yzx65/ndas4windows

BOOL
CNdasDevice::Enable(BOOL bEnable)
{
	ximeta::CAutoLock autolock(this);

	if (bEnable) 
	{
		//
		// To enable this device
		//
		if (NDAS_DEVICE_STATUS_DISABLED != m_status) 
		{
			return TRUE;
		} 

		//
		// DISABLED -> DISCONNECTED
		//
		ChangeStatus(NDAS_DEVICE_STATUS_DISCONNECTED);
	} 
	else 
	{
		//
		// To disable this device
		//
		if (NDAS_DEVICE_STATUS_DISABLED == m_status) 
		{
			return TRUE;
		} 

		//
		// You cannot disable this device when a unit device is mounted
		//
		if (IsAnyUnitDevicesMounted())
		{
			::SetLastError(NDASHLPSVC_ERROR_CANNOT_DISABLE_MOUNTED_DEVICE);
			return FALSE;
		}

		//
		// DISCONNECTED/CONNECTED -> DISABLED
		//
		ChangeStatus(NDAS_DEVICE_STATUS_DISABLED);
	}

	(VOID) SetConfigValue(_T("Enabled"), bEnable);

	//
	// Clear Device Error
	//
	SetLastDeviceError(NDAS_DEVICE_ERROR_NONE);

	return TRUE;
}

Example #3

File: ndasdev.cpp Project: yzx65/ndas4windows

//
// status check event handler
// to reconcile the status 
//
// to be connected status, broadcast packet
// should be received within MAX_ALLOWED_HEARTBEAT_INTERVAL
// 
// returns TRUE to detach from the monitor
// FALSE otherwise.
//
BOOL
CNdasDevice::OnStatusCheck()
{
	ximeta::CAutoLock autolock(this);

	//
	// Only when the device is connected!
	//
	if (NDAS_DEVICE_STATUS_CONNECTED != m_status) {
//		_ASSERTE(FALSE && "OnStatusCheck should be called when connected!");
		DBGPRT_WARN(_FT("OnStatusCheck is called on connected. Detaching.\n"));
		// Detach from the monitor
		return TRUE;
	}

	DWORD dwCurrentTick = ::GetTickCount();
	DWORD dwElapsed = dwCurrentTick - m_dwLastHeartbeatTick;

	if (dwElapsed > MAX_ALLOWED_HEARTBEAT_INTERVAL) {

		//
		// When just a single unit device is mounted,
		// status will not be changed to DISCONNECTED!
		//

		if (IsAnyUnitDevicesMounted()) {
			return FALSE;
		}

		//
		// Do not disconnect the device when the debugger is attached
		//
		if (!NdasServiceConfig::Get(nscDisconnectOnDebug) &&
			::IsDebuggerPresent()) 
		{
			return FALSE;
		}

		BOOL fSuccess = DestroyAllUnitDevices();
		if (!fSuccess) {
			return FALSE;
		}

		ChangeStatus(NDAS_DEVICE_STATUS_DISCONNECTED);
		return TRUE;
	}

	return FALSE;
}