Method writeToFd

KittyMemoryEx/KittyIOFile.cpp:225–260

}

bool KittyIOFile::writeToFd(int fd)
{
    _error = 0;

    if (_fd < 0 || fd < 0)
        return false;

    std::vector<char> buffer(_bufferSize);
    uintptr_t offset = 0;

    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;
}

void KittyIOFile::listFilesCallback(const std::string &dirPath, std::function<bool(const std::string &)> cb)
{