Function tryGetFileSizeFromReadBuffer

src/IO/WithFileSize.cpp:42–49

}

std::optional<size_t> tryGetFileSizeFromReadBuffer(ReadBuffer & in)
{
    if (auto * delegate = dynamic_cast<ReadBufferFromFileDecorator *>(&in))
        return tryGetFileSize(delegate->getWrappedReadBuffer());
    if (auto * compressed = dynamic_cast<CompressedReadBufferWrapper *>(&in))
        return tryGetFileSize(compressed->getWrappedReadBuffer());
    return tryGetFileSize(in);
}

size_t getFileSizeFromReadBuffer(ReadBuffer & in)
{