如何在C++中实现多线程文件处理

我正在处理一个问题，需要处理24个文件（每个大小=3GB），并将输出写入多个文件（24）。处理每个文件大约需要1个小时。是否可以使用以下代码使用多线程同时将数据写入多个文件？

 int _tmain(int argc, _TCHAR* argv[])
    {
        std::string path;
        cout << "Enter the folder of the logs:  " << endl; 
        cin >> path;
        WIN32_FIND_DATA FileInformation;       // File information  
        memset(&FileInformation, 0, sizeof(WIN32_FIND_DATA));         
        std::string strExt =  "\*.txt";
        std::string strEscape = "\";
        std::string strPattern = path + strExt;             
        HANDLE hFile = ::FindFirstFile(strPattern.c_str(), &FileInformation);  
        while(hFile != INVALID_HANDLE_VALUE)     
        {
            int offset;
            std::ifstream Myfile;
            std::string strFileName = FileInformation.cFileName;
            std:: string fullPath = path + strEscape + strFileName;
            std::string outputFile = path + strEscape + strFileName.substr(0, strFileName.length()-3) + "processed"+".txt";
            std::ofstream ofs(outputFile, std::ofstream::out);
            Myfile.open (fullPath);
            std::string line;
            if(Myfile.is_open())
            {
                while(!Myfile.eof())
                {
                -------Processing--------
                }
                Myfile.close();
            }
            else
                cout<<"Cannot open file."<<endl;
            if(FindNextFile(hFile, &FileInformation) == FALSE)
                break;
        }      
        // Close handle  
        ::FindClose(hFile);        
        return 0;
    }