Added VLBI application

psrdada_cpp/effelsberg/edd/src/VLBI_cli.cu

+#include "boost/program_options.hpp"
+#include "psrdada_cpp/cli_utils.hpp"
+#include "psrdada_cpp/common.hpp"
+#include "psrdada_cpp/dada_client_base.hpp"
+#include "psrdada_cpp/dada_input_stream.hpp"
+#include "psrdada_cpp/dada_null_sink.hpp"
+#include "psrdada_cpp/dada_output_stream.hpp"
+#include "psrdada_cpp/multilog.hpp"
+#include "psrdada_cpp/simple_file_writer.hpp"
+
+#include "psrdada_cpp/effelsberg/edd/VLBI.cuh"
+
+#include <ctime>
+#include <iostream>
+#include <time.h>
+
+
+using namespace psrdada_cpp;
+
+
+namespace {
+const size_t ERROR_IN_COMMAND_LINE = 1;
+const size_t SUCCESS = 0;
+const size_t ERROR_UNHANDLED_EXCEPTION = 2;
+} // namespace
+
+
+int main(int argc, char **argv) {
+  try {
+    key_t input_key;
+    unsigned int nbits;
+
+    size_t speadHeapSize;
+
+    std::time_t now = std::time(NULL);
+    std::tm *ptm = std::localtime(&now);
+    char buffer[32];
+    std::strftime(buffer, 32, "%Y-%m-%d-%H:%M:%S.bp", ptm);
+    std::string filename(buffer);
+    std::string output_type = "file";
+
+    /** Define and parse the program options
+    */
+    namespace po = boost::program_options;
+    po::options_description desc("Options");
+
+    desc.add_options()("help,h", "Print help messages");
+    desc.add_options()(
+        "input_key,i",
+        po::value<std::string>()->default_value("dada")->notifier(
+            [&input_key](std::string in) { input_key = string_to_key(in); }),
+        "The shared memory key for the dada buffer to connect to (hex "
+        "string)");
+    desc.add_options()(
+        "output_type", po::value<std::string>(&output_type)->default_value(output_type),
+        "output type [dada, file]. Default is file."
+        );
+    desc.add_options()(
+        "output_key,o", po::value<std::string>(&filename)->default_value(filename),
+        "The key of the output bnuffer / name of the output file to write spectra "
+        "to");
+    desc.add_options()("nbits,b", po::value<unsigned int>(&nbits)->required(),
+                       "The number of bits per sample in the "
+                       "packetiser output (8 or 12)");
+    desc.add_options()("speadheap_size",
+                       po::value<size_t>()->default_value(4096)->notifier(
+                           [&speadHeapSize](size_t in) { speadHeapSize = in; }),
+                       "size of the spead data heaps. The number of the "
+                       "heaps in the dada block depends on the number of "
+                       "side channel items.");
+
+    desc.add_options()(
+        "log_level", po::value<std::string>()->default_value("info")->notifier(
+                         [](std::string level) { set_log_level(level); }),
+        "The logging level to use "
+        "(debug, info, warning, "
+        "error)");
+
+    po::variables_map vm;
+    try {
+      po::store(po::parse_command_line(argc, argv, desc), vm);
+      if (vm.count("help")) {
+        std::cout << "VLBI -- Read EDD data from a DADA buffer "
+                     "and convert it to 2 bit VLBI data in VDIF format"
+                  << std::endl
+                  << desc << std::endl;
+        return SUCCESS;
+      }
+
+      po::notify(vm);
+      if (vm.count("output_type") && (!(output_type == "dada" || output_type == "file") ))
+      {
+        throw po::validation_error(po::validation_error::invalid_option_value, "output_type", output_type);
+      }
+
+    } catch (po::error &e) {
+      std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
+      std::cerr << desc << std::endl;
+      return ERROR_IN_COMMAND_LINE;
+    }
+
+    MultiLog log("edd::VLBI");
+    DadaClientBase client(input_key, log);
+    std::size_t buffer_bytes = client.data_buffer_size();
+
+    std::cout << "Running with output_type: " << output_type << std::endl;
+    if (output_type == "file")
+    {
+      SimpleFileWriter sink(filename);
+      effelsberg::edd::VLBI<decltype(sink)> vlbi(
+          buffer_bytes, nbits,
+          speadHeapSize, 5000, sink);
+
+      DadaInputStream<decltype(vlbi)> istream(input_key, log, vlbi);
+      istream.start();
+    }
+    else if (output_type == "dada")
+    {
+      DadaOutputStream sink(string_to_key(filename), log);
+      effelsberg::edd::VLBI<decltype(sink)> vlbi(
+          buffer_bytes, nbits,
+          speadHeapSize, 5000, sink);
+      DadaInputStream<decltype(vlbi)> istream(input_key, log, vlbi);
+      istream.start();
+    }
+    else
+    {
+      throw std::runtime_error("Unknown oputput-type");
+    }
+
+
+  } catch (std::exception &e) {
+    std::cerr << "Unhandled Exception reached the top of main: " << e.what()
+              << ", application will now exit" << std::endl;
+    return ERROR_UNHANDLED_EXCEPTION;
+  }
+  return SUCCESS;
+}
+