Class stat

phxqueue/comm/utils/file_util.cpp:235–235

int CopyDir(const string &src_dir_path, const string &dst_dir_path) {
    // struct required, rationale: function stat() exists also
    struct stat src_stat;
    if (-1 == stat(src_dir_path.c_str(), &src_stat)) {
        int ret{errno};
        // TODO: