Function repairStepFile

source/MRIOExtras/MRStep.cpp:818–857

#if !STEP_READER_FIXED
Expected<void> repairStepFile( STEPControl_Reader& reader )
{
    const auto model = reader.StepModel();
    const auto protocol = Handle( StepData_Protocol )::DownCast( model->Protocol() );

    StepData_StepWriter sw( model );
    sw.SendModel( protocol );

#if STEP_READSTREAM_SUPPORTED
    std::stringstream buffer;
    if ( !sw.Print( buffer ) )
        return unexpected( "Failed to repair STEP model" );

    buffer.seekp( 0, std::ios::beg );

    reader = STEPControl_Reader();
    return readFromStream( reader, buffer );
#else
    std::unique_lock lock( cOpenCascadeTempFileMutex );

    const auto auxFilePath = getStepTemporaryDirectory() / "auxFile.step";
    std::error_code ec;
    MR_FINALLY {
        std::filesystem::remove( auxFilePath, ec );
    };

    {
        // NOTE: opening the file in binary mode and passing to the StepData_StepWriter object lead to segfault
        std::ofstream ofs( auxFilePath );
        if ( !ofs )
            return unexpected( std::string( "Cannot open buffer file" ) );

        if ( !sw.Print( ofs ) )
            return unexpected( "Failed to repair STEP model" );
    }

    reader = STEPControl_Reader();
    return readFromFile( reader, auxFilePath );
#endif
}
#endif

std::mutex cOpenCascadeMutex = {};