Method clearMemoryCache

Core/MemoryFile.h:174–174

    void reloadFromFile(size_t expectedCapacity = 0);

    void clearMemoryCache() { doCleanMemoryCache(false); }

#ifndef MMKV_WIN32
    bool isFileValid() { return (m_isMayflyFD || m_diskFile.isFileValid()) && m_size > 0 && m_ptr; }