void get_pkt(buf_ptr &buf)
{
size_t size = base::m_coder->symbol_size();
memcpy(buf->head(), base::m_coder->symbol(m_decoded++), size);
buf->trim(size);
++m_decoded_count;
}
bool read_pkt(buf_ptr &buf)
{
int res;
res = read(m_fd, buf->data(), buf->max_len());
if (res > 0) {
buf->trim(res);
return true;
}
if (res == 0)
return false;
if (res < 0 && errno == EAGAIN)
return false;
throw std::system_error(errno, std::system_category(),
"unable to read pkt");
}