uhd: mpm: apply clang-format to all files

Applying formatting changes to all .cpp and .hpp files in the following
directories:
```
find host/examples/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/tests/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/dboard/neon/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/dboard/magnesium/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/device3/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/mpmd/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/lib/usrp/x300/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find host/utils/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
find mpm/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
```

Also formatted host/include/, except Cpp03 was used as a the language
standard instead of Cpp11.
```
sed -i 's/ Cpp11/ Cpp03/g' .clang-format
find host/include/ -iname *.hpp -o -iname *.cpp | \
    xargs clang-format -i -style=file
```

Formatting style was designated by the .clang-format file.

1 files changed, 127 insertions, 140 deletions

diff --git a/host/utils/usrp_cal_utils.hpp b/host/utils/usrp_cal_utils.hpp
index ebd1400b7..fe567c7de 100644
--- a/host/utils/usrp_cal_utils.hpp
+++ b/host/utils/usrp_cal_utils.hpp
@@ -5,38 +5,40 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 //
 
-#include <uhd/utils/paths.hpp>
 #include <uhd/property_tree.hpp>
-#include <uhd/usrp/multi_usrp.hpp>
 #include <uhd/usrp/dboard_eeprom.hpp>
-#include <uhd/utils/paths.hpp>
+#include <uhd/usrp/multi_usrp.hpp>
 #include <uhd/utils/algorithm.hpp>
+#include <uhd/utils/paths.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/format.hpp>
-#include <iostream>
-#include <vector>
-#include <complex>
+#include <chrono>
 #include <cmath>
+#include <complex>
 #include <cstdlib>
 #include <fstream>
-#include <chrono>
+#include <iostream>
 #include <thread>
+#include <vector>
 
 namespace fs = boost::filesystem;
 
-struct result_t{double freq, real_corr, imag_corr, best, delta;};
+struct result_t
+{
+    double freq, real_corr, imag_corr, best, delta;
+};
 
 typedef std::complex<float> samp_type;
 
 /***********************************************************************
  * Constants
  **********************************************************************/
-static const double tau = 6.28318531;
-static const size_t wave_table_len = 65536;
-static const size_t num_search_steps = 5;
-static const double default_precision = 0.0001;
-static const double default_freq_step = 7.3e6;
-static const size_t default_fft_bin_size = 1000;
+static const double tau                   = 6.28318531;
+static const size_t wave_table_len        = 65536;
+static const size_t num_search_steps      = 5;
+static const double default_precision     = 0.0001;
+static const double default_freq_step     = 7.3e6;
+static const size_t default_fft_bin_size  = 1000;
 static constexpr size_t MAX_NUM_TX_ERRORS = 10;
 
 /***********************************************************************
@@ -49,51 +51,44 @@ static inline void set_optimum_defaults(uhd::usrp::multi_usrp::sptr usrp)
     uhd::usrp::subdev_spec_t subdev_spec = usrp->get_rx_subdev_spec();
 
     const uhd::fs_path mb_path = "/mboards/0";
-    const std::string mb_name = tree->access<std::string>(mb_path / "name").get();
-    if (mb_name.find("USRP2") != std::string::npos or
-        mb_name.find("N200") != std::string::npos or
-        mb_name.find("N210") != std::string::npos or
-        mb_name.find("X300") != std::string::npos or
-        mb_name.find("X310") != std::string::npos or
-        mb_name.find("n3xx") != std::string::npos)
-    {
+    const std::string mb_name  = tree->access<std::string>(mb_path / "name").get();
+    if (mb_name.find("USRP2") != std::string::npos
+        or mb_name.find("N200") != std::string::npos
+        or mb_name.find("N210") != std::string::npos
+        or mb_name.find("X300") != std::string::npos
+        or mb_name.find("X310") != std::string::npos
+        or mb_name.find("n3xx") != std::string::npos) {
         usrp->set_tx_rate(12.5e6);
         usrp->set_rx_rate(12.5e6);
-    }
-    else if (mb_name.find("B100") != std::string::npos)
-    {
+    } else if (mb_name.find("B100") != std::string::npos) {
         usrp->set_tx_rate(4e6);
         usrp->set_rx_rate(4e6);
-    }
-    else
-    {
+    } else {
         throw std::runtime_error("self-calibration is not supported for this device");
     }
 
-    const uhd::fs_path tx_fe_path = "/mboards/0/dboards/" + subdev_spec[0].db_name + "/tx_frontends/0";
+    const uhd::fs_path tx_fe_path =
+        "/mboards/0/dboards/" + subdev_spec[0].db_name + "/tx_frontends/0";
     const std::string tx_name = tree->access<std::string>(tx_fe_path / "name").get();
-    if (tx_name.find("WBX") == std::string::npos and
-        tx_name.find("SBX") == std::string::npos and
-        tx_name.find("CBX") == std::string::npos and
-        tx_name.find("RFX") == std::string::npos and
-        tx_name.find("UBX") == std::string::npos and
-        tx_name.find("Rhodium") == std::string::npos
-        )
-    {
+    if (tx_name.find("WBX") == std::string::npos
+        and tx_name.find("SBX") == std::string::npos
+        and tx_name.find("CBX") == std::string::npos
+        and tx_name.find("RFX") == std::string::npos
+        and tx_name.find("UBX") == std::string::npos
+        and tx_name.find("Rhodium") == std::string::npos) {
         throw std::runtime_error("self-calibration is not supported for this TX dboard");
     }
     usrp->set_tx_gain(0);
 
-    const uhd::fs_path rx_fe_path = "/mboards/0/dboards/" + subdev_spec[0].db_name + "/rx_frontends/0";
+    const uhd::fs_path rx_fe_path =
+        "/mboards/0/dboards/" + subdev_spec[0].db_name + "/rx_frontends/0";
     const std::string rx_name = tree->access<std::string>(rx_fe_path / "name").get();
-    if (rx_name.find("WBX") == std::string::npos and
-        rx_name.find("SBX") == std::string::npos and
-        rx_name.find("CBX") == std::string::npos and
-        rx_name.find("RFX") == std::string::npos and
-        rx_name.find("UBX") == std::string::npos and
-        rx_name.find("Rhodium") == std::string::npos
-        )
-    {
+    if (rx_name.find("WBX") == std::string::npos
+        and rx_name.find("SBX") == std::string::npos
+        and rx_name.find("CBX") == std::string::npos
+        and rx_name.find("RFX") == std::string::npos
+        and rx_name.find("UBX") == std::string::npos
+        and rx_name.find("Rhodium") == std::string::npos) {
         throw std::runtime_error("self-calibration is not supported for this RX dboard");
     }
     usrp->set_rx_gain(0);
@@ -107,13 +102,16 @@ void check_for_empty_serial(uhd::usrp::multi_usrp::sptr usrp)
     // Will work on 1st subdev, top-level must make sure it's the right one
     uhd::usrp::subdev_spec_t subdev_spec = usrp->get_rx_subdev_spec();
 
-    //extract eeprom
+    // extract eeprom
     uhd::property_tree::sptr tree = usrp->get_device()->get_tree();
     // This only works with transceiver boards, so we can always check rx side
-    const uhd::fs_path db_path = "/mboards/0/dboards/" + subdev_spec[0].db_name + "/rx_eeprom";
-    const uhd::usrp::dboard_eeprom_t db_eeprom = tree->access<uhd::usrp::dboard_eeprom_t>(db_path).get();
+    const uhd::fs_path db_path =
+        "/mboards/0/dboards/" + subdev_spec[0].db_name + "/rx_eeprom";
+    const uhd::usrp::dboard_eeprom_t db_eeprom =
+        tree->access<uhd::usrp::dboard_eeprom_t>(db_path).get();
 
-    std::string error_string = "This dboard has no serial!\n\nPlease see the Calibration documentation for details on how to fix this.";
+    std::string error_string = "This dboard has no serial!\n\nPlease see the Calibration "
+                               "documentation for details on how to fix this.";
     if (db_eeprom.serial.empty())
         throw std::runtime_error(error_string);
 }
@@ -128,7 +126,7 @@ public:
     {
         _table.resize(wave_table_len);
         for (size_t i = 0; i < wave_table_len; i++)
-            _table[i] = samp_type(std::polar(ampl, (tau*i)/wave_table_len));
+            _table[i] = samp_type(std::polar(ampl, (tau * i) / wave_table_len));
     }
 
     inline samp_type operator()(const size_t index) const
@@ -137,33 +135,32 @@ public:
     }
 
 private:
-    std::vector<samp_type > _table;
+    std::vector<samp_type> _table;
 };
 
 /***********************************************************************
  * Compute power of a tone
  **********************************************************************/
-static inline double compute_tone_dbrms(
-    const std::vector<samp_type> &samples,
-    const double freq)  //freq is fractional
+static inline double compute_tone_dbrms(const std::vector<samp_type>& samples,
+    const double freq) // freq is fractional
 {
-    //shift the samples so the tone at freq is down at DC
-    //and average the samples to measure the DC component
+    // shift the samples so the tone at freq is down at DC
+    // and average the samples to measure the DC component
     samp_type average = 0;
     for (size_t i = 0; i < samples.size(); i++)
-        average += samp_type(std::polar(1.0, -freq*tau*i)) * samples[i];
+        average += samp_type(std::polar(1.0, -freq * tau * i)) * samples[i];
 
-    return 20*std::log10(std::abs(average/float(samples.size())));
+    return 20 * std::log10(std::abs(average / float(samples.size())));
 }
 
 /***********************************************************************
  * Write a dat file
  **********************************************************************/
 static inline void write_samples_to_file(
-    const std::vector<samp_type > &samples, const std::string &file)
+    const std::vector<samp_type>& samples, const std::string& file)
 {
     std::ofstream outfile(file.c_str(), std::ofstream::binary);
-    outfile.write((const char*)&samples.front(), samples.size()*sizeof(samp_type));
+    outfile.write((const char*)&samples.front(), samples.size() * sizeof(samp_type));
     outfile.close();
 }
 
@@ -171,38 +168,39 @@ static inline void write_samples_to_file(
 /***********************************************************************
  * Retrieve d'board serial
  **********************************************************************/
-static std::string get_serial(
-    uhd::usrp::multi_usrp::sptr usrp,
-    const std::string &tx_rx)
+static std::string get_serial(uhd::usrp::multi_usrp::sptr usrp, const std::string& tx_rx)
 {
     uhd::property_tree::sptr tree = usrp->get_device()->get_tree();
     // Will work on 1st subdev, top-level must make sure it's the right one
     uhd::usrp::subdev_spec_t subdev_spec = usrp->get_rx_subdev_spec();
-    const uhd::fs_path db_path = "/mboards/0/dboards/" + subdev_spec[0].db_name + "/" + tx_rx + "_eeprom";
-    const uhd::usrp::dboard_eeprom_t db_eeprom = tree->access<uhd::usrp::dboard_eeprom_t>(db_path).get();
+    const uhd::fs_path db_path =
+        "/mboards/0/dboards/" + subdev_spec[0].db_name + "/" + tx_rx + "_eeprom";
+    const uhd::usrp::dboard_eeprom_t db_eeprom =
+        tree->access<uhd::usrp::dboard_eeprom_t>(db_path).get();
     return db_eeprom.serial;
 }
 
 /***********************************************************************
  * Store data to file
  **********************************************************************/
-static void store_results(
-    const std::vector<result_t> &results,
-    const std::string &XX, // "TX" or "RX"
-    const std::string &xx, // "tx" or "rx"
-    const std::string &what, // Type of test, e.g. "iq",
-    const std::string &serial)
+static void store_results(const std::vector<result_t>& results,
+    const std::string& XX, // "TX" or "RX"
+    const std::string& xx, // "tx" or "rx"
+    const std::string& what, // Type of test, e.g. "iq",
+    const std::string& serial)
 {
-    //make the calibration file path
+    // make the calibration file path
     fs::path cal_data_path = fs::path(uhd::get_app_path()) / ".uhd";
     fs::create_directory(cal_data_path);
     cal_data_path = cal_data_path / "cal";
     fs::create_directory(cal_data_path);
-    cal_data_path = cal_data_path / str(boost::format("%s_%s_cal_v0.2_%s.csv") % xx % what % serial);
+    cal_data_path =
+        cal_data_path / str(boost::format("%s_%s_cal_v0.2_%s.csv") % xx % what % serial);
     if (fs::exists(cal_data_path))
-        fs::rename(cal_data_path, cal_data_path.string() + str(boost::format(".%d") % time(NULL)));
+        fs::rename(cal_data_path,
+            cal_data_path.string() + str(boost::format(".%d") % time(NULL)));
 
-    //fill the calibration file
+    // fill the calibration file
     std::ofstream cal_data(cal_data_path.string().c_str());
     cal_data << boost::format("name, %s Frontend Calibration\n") % XX;
     cal_data << boost::format("serial, %s\n") % serial;
@@ -211,15 +209,10 @@ static void store_results(
     cal_data << boost::format("DATA STARTS HERE\n");
     cal_data << "lo_frequency, correction_real, correction_imag, measured, delta\n";
 
-    for (size_t i = 0; i < results.size(); i++)
-    {
-        cal_data
-            << results[i].freq << ", "
-            << results[i].real_corr << ", "
-            << results[i].imag_corr << ", "
-            << results[i].best << ", "
-            << results[i].delta << "\n"
-        ;
+    for (size_t i = 0; i < results.size(); i++) {
+        cal_data << results[i].freq << ", " << results[i].real_corr << ", "
+                 << results[i].imag_corr << ", " << results[i].best << ", "
+                 << results[i].delta << "\n";
     }
 
     std::cout << "wrote cal data to " << cal_data_path << std::endl;
@@ -228,10 +221,9 @@ static void store_results(
 /***********************************************************************
  * Data capture routine
  **********************************************************************/
-static void capture_samples(
-    uhd::usrp::multi_usrp::sptr usrp,
+static void capture_samples(uhd::usrp::multi_usrp::sptr usrp,
     uhd::rx_streamer::sptr rx_stream,
-    std::vector<samp_type > &buff,
+    std::vector<samp_type>& buff,
     const size_t nsamps_requested)
 {
     buff.resize(nsamps_requested);
@@ -243,34 +235,29 @@ static void capture_samples(
     std::vector<samp_type> discard_buff(nsamps_to_discard);
 
     uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
-    stream_cmd.num_samps = buff.size() + nsamps_to_discard;
+    stream_cmd.num_samps  = buff.size() + nsamps_to_discard;
     stream_cmd.stream_now = true;
     usrp->issue_stream_cmd(stream_cmd);
     size_t num_rx_samps = 0;
 
     // Discard the transient samples.
     rx_stream->recv(&discard_buff.front(), discard_buff.size(), md);
-    if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE)
-    {
-        throw std::runtime_error(str(boost::format(
-            "Receiver error: %s"
-        ) % md.strerror()));
+    if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE) {
+        throw std::runtime_error(
+            str(boost::format("Receiver error: %s") % md.strerror()));
     }
 
     // Now capture the data we want
     num_rx_samps = rx_stream->recv(&buff.front(), buff.size(), md);
 
-    //validate the received data
-    if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE)
-    {
-        throw std::runtime_error(str(boost::format(
-            "Receiver error: %s"
-        ) % md.strerror()));
+    // validate the received data
+    if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE) {
+        throw std::runtime_error(
+            str(boost::format("Receiver error: %s") % md.strerror()));
     }
 
-    //we can live if all the data didnt come in
-    if (num_rx_samps > buff.size()/2)
-    {
+    // we can live if all the data didnt come in
+    if (num_rx_samps > buff.size() / 2) {
         buff.resize(num_rx_samps);
         return;
     }
@@ -281,15 +268,16 @@ static void capture_samples(
 /***********************************************************************
  * Setup function
  **********************************************************************/
-static uhd::usrp::multi_usrp::sptr setup_usrp_for_cal(std::string &args, std::string &subdev, std::string &serial)
+static uhd::usrp::multi_usrp::sptr setup_usrp_for_cal(
+    std::string& args, std::string& subdev, std::string& serial)
 {
     std::cout << std::endl;
-    std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+    std::cout << boost::format("Creating the usrp device with: %s...") % args
+              << std::endl;
     uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args);
 
     // Configure subdev
-    if (!subdev.empty())
-    {
+    if (!subdev.empty()) {
         usrp->set_tx_subdev_spec(subdev);
         usrp->set_rx_subdev_spec(subdev);
     }
@@ -297,16 +285,18 @@ static uhd::usrp::multi_usrp::sptr setup_usrp_for_cal(std::string &args, std::st
     serial = get_serial(usrp, "tx");
     std::cout << "Daughterboard serial: " << serial;
 
-    //set the antennas to cal
-    if (not uhd::has(usrp->get_rx_antennas(), "CAL") or not uhd::has(usrp->get_tx_antennas(), "CAL"))
-        throw std::runtime_error("This board does not have the CAL antenna option, cannot self-calibrate.");
+    // set the antennas to cal
+    if (not uhd::has(usrp->get_rx_antennas(), "CAL")
+        or not uhd::has(usrp->get_tx_antennas(), "CAL"))
+        throw std::runtime_error(
+            "This board does not have the CAL antenna option, cannot self-calibrate.");
     usrp->set_rx_antenna("CAL");
     usrp->set_tx_antenna("CAL");
 
-    //fail if daughterboard has no serial
+    // fail if daughterboard has no serial
     check_for_empty_serial(usrp);
 
-    //set optimum defaults
+    // set optimum defaults
     set_optimum_defaults(usrp);
 
     return usrp;
@@ -315,25 +305,24 @@ static uhd::usrp::multi_usrp::sptr setup_usrp_for_cal(std::string &args, std::st
 /***********************************************************************
  * Function to find optimal RX gain setting (for the current frequency)
  **********************************************************************/
-UHD_INLINE void set_optimal_rx_gain(
-    uhd::usrp::multi_usrp::sptr usrp,
+UHD_INLINE void set_optimal_rx_gain(uhd::usrp::multi_usrp::sptr usrp,
     uhd::rx_streamer::sptr rx_stream,
     double wave_freq = 0.0)
 {
-    const double gain_step = 3.0;
+    const double gain_step                  = 3.0;
     const double gain_compression_threshold = gain_step * 0.5;
-    const double actual_rx_rate = usrp->get_rx_rate();
-    const double actual_tx_freq = usrp->get_tx_freq();
-    const double actual_rx_freq = usrp->get_rx_freq();
-    const double bb_tone_freq = actual_tx_freq - actual_rx_freq + wave_freq;
+    const double actual_rx_rate             = usrp->get_rx_rate();
+    const double actual_tx_freq             = usrp->get_tx_freq();
+    const double actual_rx_freq             = usrp->get_rx_freq();
+    const double bb_tone_freq               = actual_tx_freq - actual_rx_freq + wave_freq;
     const size_t nsamps = size_t(actual_rx_rate / default_fft_bin_size);
 
     std::vector<samp_type> buff(nsamps);
     uhd::gain_range_t rx_gain_range = usrp->get_rx_gain_range();
-    double rx_gain = rx_gain_range.start() + gain_step;
-    double curr_dbrms = 0.0;
-    double prev_dbrms = 0.0;
-    double delta = 0.0;
+    double rx_gain                  = rx_gain_range.start() + gain_step;
+    double curr_dbrms               = 0.0;
+    double prev_dbrms               = 0.0;
+    double delta                    = 0.0;
 
     // No sense in setting the gain where this is no gain range
     if (rx_gain_range.stop() - rx_gain_range.start() < gain_step)
@@ -349,20 +338,19 @@ UHD_INLINE void set_optimal_rx_gain(
     // Initialize prev_dbrms value
     usrp->set_rx_gain(rx_gain);
     capture_samples(usrp, rx_stream, buff, nsamps);
-    prev_dbrms = compute_tone_dbrms(buff, bb_tone_freq/actual_rx_rate);
+    prev_dbrms = compute_tone_dbrms(buff, bb_tone_freq / actual_rx_rate);
     rx_gain += gain_step;
 
     // Find RX gain where signal begins to clip
-    while (rx_gain <= rx_gain_range.stop())
-    {
+    while (rx_gain <= rx_gain_range.stop()) {
         usrp->set_rx_gain(rx_gain);
         capture_samples(usrp, rx_stream, buff, nsamps);
-        curr_dbrms = compute_tone_dbrms(buff, bb_tone_freq/actual_rx_rate);
-        delta = curr_dbrms - prev_dbrms;
+        curr_dbrms = compute_tone_dbrms(buff, bb_tone_freq / actual_rx_rate);
+        delta      = curr_dbrms - prev_dbrms;
 
         // check if the gain is compressed beyone the threshold
         if (delta < gain_step - gain_compression_threshold)
-            break;  // if so, we are done
+            break; // if so, we are done
 
         prev_dbrms = curr_dbrms;
         rx_gain += gain_step;
@@ -391,14 +379,14 @@ bool has_tx_error(uhd::tx_streamer::sptr tx_stream)
         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
-    );
+    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 wait_for_lo_lock(uhd::usrp::multi_usrp::sptr usrp)
@@ -407,10 +395,9 @@ void wait_for_lo_lock(uhd::usrp::multi_usrp::sptr usrp)
     const auto timeout =
         std::chrono::steady_clock::now() + std::chrono::milliseconds(100);
     while (not usrp->get_tx_sensor("lo_locked").to_bool()
-            or not usrp->get_rx_sensor("lo_locked").to_bool()) {
+           or not usrp->get_rx_sensor("lo_locked").to_bool()) {
         if (std::chrono::steady_clock::now() > timeout) {
-            throw std::runtime_error(
-                "timed out waiting for TX and/or RX LO to lock");
+            throw std::runtime_error("timed out waiting for TX and/or RX LO to lock");
         }
     }
 }