C++ (Cpp) CDataFileLoader::GetLibDatContent Examples

Example #1

File: SoftUninstall.cpp Project: dreamsxin/PcManager

BOOL CSoftUninstall::LoadPinYin()
{
	CDataFileLoader	loader;
	BkDatLibContent content;

	if(!loader.GetLibDatContent((_ksafePath + SOFT_PINYIN_DAT).c_str(), content))
		return FALSE;

	TiXmlDocument plugins;
	if(plugins.Parse((char*)content.pBuffer) == NULL)
		return FALSE;

	TiXmlHandle hRoot(plugins.FirstChildElement("fonts"));
	for(TiXmlElement *pElem = hRoot.FirstChildElement("font").Element(); pElem != NULL; pElem = pElem->NextSiblingElement())
	{
		LPCSTR pHan = pElem->Attribute("c");
		if(pHan == NULL) continue;

		PinYin pinyin;
		pinyin._whole = pElem->Attribute("p");
		pinyin._acronym = pElem->Attribute("s");

		_hashPinYin.insert(make_pair(pHan, pinyin));
	}

	return TRUE;
}

Example #2

File: SoftMgrUpdateHelper.cpp Project: 6520874/pcmanager

HRESULT STDMETHODCALLTYPE CSoftMgrUpdateHelper::Combine( LPCWSTR lpwszDifflib )
{
#if OPEN_VCDIFF
	// 加载Delta
	BkDatLibContent delta;
	CDataFileLoader	loader;
	if(!loader.GetLibDatContent(lpwszDifflib, delta)) return ::HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);

	// 目标文件路径
	wchar_t szDstPath[MAX_PATH] = {0};
	{
		::GetModuleFileNameW(NULL, szDstPath, MAX_PATH);

		::PathRemoveFileSpecW(szDstPath);
		wcscat_s(szDstPath, MAX_PATH, L"\\KSoft\\Data\\");
		wcscat_s(szDstPath, MAX_PATH, ::PathFindFileNameW(lpwszDifflib));

		//
		//@Issue
		// 根据名称来判断库类型
		//
		//@Note
		// 命名规则为：libname_old_new.dat
		//
		LPWSTR pSep = wcschr(::PathFindFileNameW(szDstPath), L'_');
		if(pSep == NULL) return ::HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER);

		pSep[0] = L'\0';
		wcscat_s(szDstPath, MAX_PATH,  L".dat");
	}

	// 加载字典文件
	CAtlFile dictFile;
	HRESULT hr = dictFile.Create(szDstPath, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, OPEN_EXISTING);
	if(!SUCCEEDED(hr)) return hr;

	ULONGLONG dictSize;
	hr = dictFile.GetSize(dictSize);
	if(!SUCCEEDED(hr)) return hr;

	auto_buffer<char> dict(static_cast<size_t>(dictSize));
	if(dict.empty()) return ::HRESULT_FROM_WIN32(ERROR_OUTOFMEMORY);

	DWORD bytesRead;
	hr = dictFile.Read(dict.data(), static_cast<DWORD>(dict.size()), bytesRead);
	if(!SUCCEEDED(hr)) return hr;

	dictFile.Close();

	// 创建目标临时文件
	CAtlTemporaryFile tempTarget;
	hr = tempTarget.Create();
	if(!SUCCEEDED(hr)) return hr;

	//
	// 开始合并
	//
	//@Note
	// Dict(Source) + Delta => Target
	//
	Output2File output2File(tempTarget);
	{
		VCDiffStreamingDecoder decoder;
		decoder.StartDecoding(&dict[0], dict.size());

		size_t beg = 0;
		size_t end = static_cast<size_t>(delta.nLen);
		LPCSTR pDelta = reinterpret_cast<LPCSTR>(delta.pBuffer);

		while(beg < end)
		{
			static const size_t MAX_THUNK_SIZE = 16*1024;

			size_t size = end - beg;
			if(size > MAX_THUNK_SIZE) size = MAX_THUNK_SIZE;

			if(!decoder.DecodeChunkToInterface(pDelta + beg, size, &output2File))
				return ::HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);

			beg += size;
		}

		if(!decoder.FinishDecoding())
			return ::HRESULT_FROM_WIN32(ERROR_BAD_FORMAT);
	}

	// 根据写入文件大小与期望大小来判断是否合并成功
	ULONGLONG dstSize;
	hr = tempTarget.GetPosition(dstSize);
	if(!SUCCEEDED(hr) || dstSize != output2File.GetTotalBytes()) return ::HRESULT_FROM_WIN32(ERROR_WRITE_FAULT);

	// 移动到目标路径
	return tempTarget.Close(szDstPath);
#else
	return S_OK;
#endif
}