void SummaryCommand :: PrintSizes( IOManager & io, const SizeMap & sm ) {
SizeMap::const_iterator it = sm.begin();
while( it != sm.end() ) {
io.Out() << it->first + 1 << ": "
<< it->second.first << "," << it->second.second
<< "\n";
++it;
}
}
template<typename samp_type> void recv_to_file(
uhd::usrp::multi_usrp::sptr usrp,
const std::string &cpu_format,
const std::string &wire_format,
const std::string &file,
size_t samps_per_buff,
unsigned long long num_requested_samples,
double time_requested = 0.0,
bool bw_summary = false,
bool stats = false,
bool null = false,
bool enable_size_map = false,
bool continue_on_bad_packet = false
){
unsigned long long num_total_samps = 0;
//create a receive streamer
uhd::stream_args_t stream_args(cpu_format,wire_format);
uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args);
uhd::rx_metadata_t md;
std::vector<samp_type> buff(samps_per_buff);
std::ofstream outfile;
if (not null)
outfile.open(file.c_str(), std::ofstream::binary);
bool overflow_message = true;
//setup streaming
uhd::stream_cmd_t stream_cmd((num_requested_samples == 0)?
uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS:
uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE
);
stream_cmd.num_samps = num_requested_samples;
stream_cmd.stream_now = true;
stream_cmd.time_spec = uhd::time_spec_t();
rx_stream->issue_stream_cmd(stream_cmd);
boost::system_time start = boost::get_system_time();
unsigned long long ticks_requested = (long)(time_requested * (double)boost::posix_time::time_duration::ticks_per_second());
boost::posix_time::time_duration ticks_diff;
boost::system_time last_update = start;
unsigned long long last_update_samps = 0;
typedef std::map<size_t,size_t> SizeMap;
SizeMap mapSizes;
while(not stop_signal_called and (num_requested_samples != num_total_samps or num_requested_samples == 0)) {
boost::system_time now = boost::get_system_time();
size_t num_rx_samps = rx_stream->recv(&buff.front(), buff.size(), md, 3.0, enable_size_map);
if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_TIMEOUT) {
std::cout << boost::format("Timeout while streaming") << std::endl;
break;
}
if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_OVERFLOW){
if (overflow_message) {
overflow_message = false;
std::cerr << boost::format(
"Got an overflow indication. Please consider the following:\n"
" Your write medium must sustain a rate of %fMB/s.\n"
" Dropped samples will not be written to the file.\n"
" Please modify this example for your purposes.\n"
" This message will not appear again.\n"
) % (usrp->get_rx_rate()*sizeof(samp_type)/1e6);
}
continue;
}
if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE){
std::string error = str(boost::format("Receiver error: %s") % md.strerror());
if (continue_on_bad_packet){
std::cerr << error << std::endl;
continue;
}
else
throw std::runtime_error(error);
}
if (enable_size_map) {
SizeMap::iterator it = mapSizes.find(num_rx_samps);
if (it == mapSizes.end())
mapSizes[num_rx_samps] = 0;
mapSizes[num_rx_samps] += 1;
}
num_total_samps += num_rx_samps;
if (outfile.is_open())
outfile.write((const char*)&buff.front(), num_rx_samps*sizeof(samp_type));
if (bw_summary) {
last_update_samps += num_rx_samps;
boost::posix_time::time_duration update_diff = now - last_update;
if (update_diff.ticks() > boost::posix_time::time_duration::ticks_per_second()) {
double t = (double)update_diff.ticks() / (double)boost::posix_time::time_duration::ticks_per_second();
double r = (double)last_update_samps / t;
std::cout << boost::format("\t%f Msps") % (r/1e6) << std::endl;
last_update_samps = 0;
last_update = now;
}
}
ticks_diff = now - start;
if (ticks_requested > 0){
if ((unsigned long long)ticks_diff.ticks() > ticks_requested)
break;
}
}
stream_cmd.stream_mode = uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS;
rx_stream->issue_stream_cmd(stream_cmd);
if (outfile.is_open())
outfile.close();
if (stats) {
std::cout << std::endl;
double t = (double)ticks_diff.ticks() / (double)boost::posix_time::time_duration::ticks_per_second();
std::cout << boost::format("Received %d samples in %f seconds") % num_total_samps % t << std::endl;
double r = (double)num_total_samps / t;
std::cout << boost::format("%f Msps") % (r/1e6) << std::endl;
if (enable_size_map) {
std::cout << std::endl;
std::cout << "Packet size map (bytes: count)" << std::endl;
for (SizeMap::iterator it = mapSizes.begin(); it != mapSizes.end(); it++)
std::cout << it->first << ":\t" << it->second << std::endl;
}
}
}
void recv_to_file(uhd::rx_streamer::sptr rx_stream,
const std::string& file,
const size_t samps_per_buff,
const double rx_rate,
const unsigned long long num_requested_samples,
double time_requested = 0.0,
bool bw_summary = false,
bool stats = false,
bool enable_size_map = false,
bool continue_on_bad_packet = false)
{
unsigned long long num_total_samps = 0;
uhd::rx_metadata_t md;
std::vector<samp_type> buff(samps_per_buff);
std::ofstream outfile;
if (not file.empty()) {
outfile.open(file.c_str(), std::ofstream::binary);
}
bool overflow_message = true;
// setup streaming
uhd::stream_cmd_t stream_cmd((num_requested_samples == 0)
? uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS
: uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
stream_cmd.num_samps = size_t(num_requested_samples);
stream_cmd.stream_now = true;
stream_cmd.time_spec = uhd::time_spec_t();
std::cout << "Issuing stream cmd" << std::endl;
rx_stream->issue_stream_cmd(stream_cmd);
const auto start_time = std::chrono::steady_clock::now();
const auto stop_time =
start_time + std::chrono::milliseconds(int64_t(1000 * time_requested));
// Track time and samps between updating the BW summary
auto last_update = start_time;
unsigned long long last_update_samps = 0;
typedef std::map<size_t, size_t> SizeMap;
SizeMap mapSizes;
// Run this loop until either time expired (if a duration was given), until
// the requested number of samples were collected (if such a number was
// given), or until Ctrl-C was pressed.
while (not stop_signal_called
and (num_requested_samples != num_total_samps or num_requested_samples == 0)
and (time_requested == 0.0 or std::chrono::steady_clock::now() <= stop_time)) {
const auto now = std::chrono::steady_clock::now();
size_t num_rx_samps =
rx_stream->recv(&buff.front(), buff.size(), md, 3.0, enable_size_map);
if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_TIMEOUT) {
std::cout << boost::format("Timeout while streaming") << std::endl;
break;
}
if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_OVERFLOW) {
if (overflow_message) {
overflow_message = false;
std::cerr
<< boost::format(
"Got an overflow indication. Please consider the following:\n"
" Your write medium must sustain a rate of %fMB/s.\n"
" Dropped samples will not be written to the file.\n"
" Please modify this example for your purposes.\n"
" This message will not appear again.\n")
% (rx_rate * sizeof(samp_type) / 1e6);
}
continue;
}
if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE) {
std::string error = str(boost::format("Receiver error: %s") % md.strerror());
if (continue_on_bad_packet) {
std::cerr << error << std::endl;
continue;
} else
throw std::runtime_error(error);
}
if (enable_size_map) {
SizeMap::iterator it = mapSizes.find(num_rx_samps);
if (it == mapSizes.end())
mapSizes[num_rx_samps] = 0;
mapSizes[num_rx_samps] += 1;
}
num_total_samps += num_rx_samps;
if (outfile.is_open()) {
outfile.write((const char*)&buff.front(), num_rx_samps * sizeof(samp_type));
}
if (bw_summary) {
last_update_samps += num_rx_samps;
const auto time_since_last_update = now - last_update;
if (time_since_last_update > std::chrono::seconds(UPDATE_INTERVAL)) {
const double time_since_last_update_s =
std::chrono::duration<double>(time_since_last_update).count();
const double rate = double(last_update_samps) / time_since_last_update_s;
std::cout << "\t" << (rate / 1e6) << " MSps" << std::endl;
last_update_samps = 0;
last_update = now;
}
}
}
const auto actual_stop_time = std::chrono::steady_clock::now();
stream_cmd.stream_mode = uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS;
std::cout << "Issuing stop stream cmd" << std::endl;
rx_stream->issue_stream_cmd(stream_cmd);
// Run recv until nothing is left
int num_post_samps = 0;
do {
num_post_samps = rx_stream->recv(&buff.front(), buff.size(), md, 3.0);
} while (num_post_samps and md.error_code == uhd::rx_metadata_t::ERROR_CODE_NONE);
if (outfile.is_open())
outfile.close();
if (stats) {
std::cout << std::endl;
const double actual_duration_seconds =
std::chrono::duration<float>(actual_stop_time - start_time).count();
std::cout << boost::format("Received %d samples in %f seconds") % num_total_samps
% actual_duration_seconds
<< std::endl;
const double rate = (double)num_total_samps / actual_duration_seconds;
std::cout << (rate / 1e6) << " MSps" << std::endl;
if (enable_size_map) {
std::cout << std::endl;
std::cout << "Packet size map (bytes: count)" << std::endl;
for (SizeMap::iterator it = mapSizes.begin(); it != mapSizes.end(); it++)
std::cout << it->first << ":\t" << it->second << std::endl;
}
}
}