iocontroller.cpp

M16C Flash Starter Software Ver.2.0.0.46 Source Files.zip是瑞萨的M16C系列单片机的flash烧写程序。

// IoController.cpp: the implementation of a/the CIoController class   
//
// This software can be offered for free and used as necessary to aid 
// in your program developments.
//
// RENESAS TECHNOLOGY CORPORATION, RENESAS SOLUTIONS CORPORATION,
// and related original software developers assume no responsibility 
// for any damage or infringement of any third-party's rights, originating 
// in the use of the following software.
// Please use this software under the agreement and acceptance of these conditions. 
//
// Copyright(C)1998(2003) RENESAS TECHNOLOGY CORPORATION AND RENESAS SOLUTIONS CORPORATION
// ALL RIGHTS RESERVED
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "IoController.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
//Construction/disappearance   
//////////////////////////////////////////////////////////////////////

CIoController::CIoController()
	: m_hDevice(INVALID_HANDLE_VALUE)
{
}

CIoController::~CIoController()
{
	Close();
}

//A device was opened   
BOOL CIoController::Open(const CString& strDevice)
{
	//It opened   
	m_hDevice = ::CreateFile(strDevice, 
		                     GENERIC_READ | GENERIC_WRITE,
			                 0,
					  	     0,
						     OPEN_EXISTING,
						     FILE_ATTRIBUTE_NORMAL,
						     0);

	//I preserve the device name if it succeeds.   
	if (m_hDevice != INVALID_HANDLE_VALUE)
	{
		m_strDevice = strDevice;
		return TRUE;
	}
	else
	{
		return FALSE;
	}
}

//The closing of the device.
BOOL CIoController::Close()
{
	//It does not do at all if a device is not opening.
	if (!IsOpen())
	{
		return TRUE;
	}

	//Invalidating the handle if it succeeds it does the device name clear.   
	if (::CloseHandle(m_hDevice))
	{
		m_hDevice = INVALID_HANDLE_VALUE;
		m_strDevice.Empty();
		return TRUE;
	}
	else
	{
		return FALSE;
	}
}