/*!
* Test the underflow message:
* Send a start of burst packet with no following end of burst.
* We expect to get an underflow(within a burst) async message.
*/
bool test_underflow_message(uhd::usrp::multi_usrp::sptr, uhd::rx_streamer::sptr, uhd::tx_streamer::sptr tx_stream){
std::cout << "Test underflow message... " << std::flush;
uhd::tx_metadata_t md;
md.start_of_burst = true;
md.end_of_burst = false;
md.has_time_spec = false;
tx_stream->send("", 0, md);
uhd::async_metadata_t async_md;
if (not tx_stream->recv_async_msg(async_md, 1)){
std::cout << boost::format(
"failed:\n"
" Async message recv timed out.\n"
) << std::endl;
return false;
}
switch(async_md.event_code){
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW:
std::cout << boost::format(
"success:\n"
" Got event code underflow message.\n"
) << std::endl;
return true;
default:
std::cout << boost::format(
"failed:\n"
" Got unexpected event code 0x%x.\n"
) % async_md.event_code << std::endl;
return false;
}
}
void tx_hammer_async_helper(uhd::tx_streamer::sptr tx_stream){
//setup variables and allocate buffer
uhd::async_metadata_t async_md;
while (not boost::this_thread::interruption_requested()){
if (not tx_stream->recv_async_msg(async_md)) continue;
//handle the error codes
switch(async_md.event_code){
case uhd::async_metadata_t::EVENT_CODE_BURST_ACK:
return;
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW:
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW_IN_PACKET:
num_underflows++;
break;
case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR:
case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR_IN_BURST:
num_seq_errors++;
break;
default:
std::cerr << "Event code: " << async_md.event_code << std::endl;
std::cerr << "Unexpected event on async recv, continuing..." << std::endl;
break;
}
}
}
/*! Returns true if any error on the TX stream has occured
*/
bool has_tx_error(uhd::tx_streamer::sptr tx_stream)
{
uhd::async_metadata_t async_md;
if (!tx_stream->recv_async_msg(async_md, 0.0)) {
return false;
}
return async_md.event_code & (0
// Any of these errors are considered a problematic TX error:
| uhd::async_metadata_t::EVENT_CODE_UNDERFLOW
| uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR
| uhd::async_metadata_t::EVENT_CODE_TIME_ERROR
| uhd::async_metadata_t::EVENT_CODE_UNDERFLOW_IN_PACKET
| uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR_IN_BURST
);
}
void benchmark_tx_rate_async_helper(
uhd::tx_streamer::sptr tx_stream,
const boost::posix_time::ptime &start_time,
std::atomic<bool>& burst_timer_elapsed
) {
//setup variables and allocate buffer
uhd::async_metadata_t async_md;
bool exit_flag = false;
while (true) {
if (burst_timer_elapsed) {
exit_flag = true;
}
if (not tx_stream->recv_async_msg(async_md)) {
if (exit_flag == true)
return;
continue;
}
//handle the error codes
switch(async_md.event_code){
case uhd::async_metadata_t::EVENT_CODE_BURST_ACK:
return;
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW:
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW_IN_PACKET:
num_underruns++;
break;
case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR:
case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR_IN_BURST:
num_seq_errors++;
break;
default:
std::cerr << "[" << NOW() << "] Event code: " << async_md.event_code << std::endl;
std::cerr << "Unexpected event on async recv, continuing..." << std::endl;
break;
}
}
}
/*!
* Test the burst ack message:
* Send a burst of many samples that will fragment internally.
* We expect to get an burst ack async message.
*/
bool test_burst_ack_message(uhd::usrp::multi_usrp::sptr, uhd::rx_streamer::sptr, uhd::tx_streamer::sptr tx_stream){
std::cout << "Test burst ack message... " << std::flush;
uhd::tx_metadata_t md;
md.start_of_burst = true;
md.end_of_burst = true;
md.has_time_spec = false;
//3 times max-sps guarantees a SOB, no burst, and EOB packet
std::vector<std::complex<float> > buff(tx_stream->get_max_num_samps()*3);
tx_stream->send(
&buff.front(), buff.size(), md
);
uhd::async_metadata_t async_md;
if (not tx_stream->recv_async_msg(async_md)){
std::cout << boost::format(
"failed:\n"
" Async message recv timed out.\n"
) << std::endl;
return false;
}
switch(async_md.event_code){
case uhd::async_metadata_t::EVENT_CODE_BURST_ACK:
std::cout << boost::format(
"success:\n"
" Got event code burst ack message.\n"
) << std::endl;
return true;
default:
std::cout << boost::format(
"failed:\n"
" Got unexpected event code 0x%x.\n"
) % async_md.event_code << std::endl;
return false;
}
}
/*!
* Test the time error message:
* Send a burst packet that occurs at a time in the past.
* We expect to get a time error async message.
*/
bool test_time_error_message(uhd::usrp::multi_usrp::sptr usrp, uhd::rx_streamer::sptr, uhd::tx_streamer::sptr tx_stream){
std::cout << "Test time error message... " << std::flush;
uhd::tx_metadata_t md;
md.start_of_burst = true;
md.end_of_burst = true;
md.has_time_spec = true;
md.time_spec = uhd::time_spec_t(100.0); //send at 100s
usrp->set_time_now(uhd::time_spec_t(200.0)); //time at 200s
tx_stream->send("", 0, md);
uhd::async_metadata_t async_md;
if (not tx_stream->recv_async_msg(async_md)){
std::cout << boost::format(
"failed:\n"
" Async message recv timed out.\n"
) << std::endl;
return false;
}
switch(async_md.event_code){
case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR:
std::cout << boost::format(
"success:\n"
" Got event code time error message.\n"
) << std::endl;
return true;
default:
std::cout << boost::format(
"failed:\n"
" Got unexpected event code 0x%x.\n"
) % async_md.event_code << std::endl;
return false;
}
}
void flush_async(uhd::tx_streamer::sptr tx_stream){
uhd::async_metadata_t async_md;
while (tx_stream->recv_async_msg(async_md)){}
}