Method tryLoadCacheFile

src/library/fft_binary_lookup.cpp:390–426

}

bool FFTBinaryLookup::tryLoadCacheFile()
{
    // may create empty file or may wait until file is ready
    const std::string & filename = this->m_path + this->m_cache_entry_name;
    std::ifstream file (filename.c_str(), std::ios_base::binary);

    if (file.is_open())
    {
        file.seekg (0, file.end);
        size_t length = file.tellg();
        file.seekg (0, file.beg);

        if (length == 0)
        {
            // the file is corrupted, so return false
            return false;
        }

        bool st;
        st = loadHeader(file, length);

        if (! st)
            return false;

        st = loadBinaryAndSignature(file);

        if (! st)
            return false;

        file.close();
        return true;
    }
    else
    {
        return false;
    }
}

bool FFTBinaryLookup::found()
{