void process_ack(buf_ptr &buf)
{
size_t block = super::rlnc_hdr_block(buf);
if (!validate_block(block))
return;
base::put_status(buf->data(), &m_decoder_rank);
std::cout << "enc ack rank " << m_decoder_rank << std::endl;
if (m_decoder_rank < super::rlnc_symbols())
return;
std::cout << "enc ack block " << block << std::endl;
increment();
}
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");
}