Method writeToFd

KittyMemoryEx/KittyIOFile.cpp:225–260

    while (true)
    {
        ssize_t nr = pread(offset, buffer.data(), buffer.size());
        if (nr < 0)
            return false;

        if (nr == 0)
            break;

        ssize_t total_nw = 0;
        while (total_nw < nr)
        {
            ssize_t nw = KT_EINTR_RETRY(::write(fd, buffer.data() + total_nw, nr - total_nw));
            if (nw <= 0)
            {
                _error = (nw < 0) ? errno : 0;
                return false;
            }
            total_nw += nw;
        }

        offset += nr;
    }

    return true;
}

bool KittyIOFile::listFilesCallback(const std::string &dirPath, std::function<bool(const std::string &)> cb)
{
    DIR *dir = opendir(dirPath.c_str());
    if (!dir)
        return false;

    std::string base = dirPath;
    if (!base.empty() && base.back() != '/')
        base += '/';

    while (struct dirent *f = readdir(dir))
    {
        if (f->d_name[0] == '.')