open_source / socket-cpp

  #include <iostream>
  #include <string>
  #include <chrono>
  #include <random>

  #include "socket-cpp/unix_connector.h"
  #include "socket-cpp/version.h"

  
  using namespace std;
  using namespace std::chrono;
  
  const size_t DFLT_N = 100000;
  const size_t DFLT_SZ = 512;
  
  using fpsec = std::chrono::duration<double, std::chrono::seconds::period>;
  
  // --------------------------------------------------------------------------
  
  int main(int argc, char* argv[])
  {
  	cout << "Unix-domain echo timing test client for 'sockpp' "

  		<< osdev::components::socket-cpp::SOCKPP_VERSION << '\n' << endl;

  
  	string path = (argc > 1) ? argv[1] : "/tmp/unechosvr.sock";
  	size_t n  = (argc > 2) ? size_t(atoll(argv[2])) : DFLT_N;
  	size_t sz = (argc > 3) ? size_t(atoll(argv[3])) : DFLT_SZ;
  

  	osdev::components::socket-cpp::socket_initializer sockInit;

  
  	auto t_start = high_resolution_clock::now();

  	osdev::components::socket-cpp::unix_connector conn;

      bool ok = conn.connect(osdev::components::socket-cpp::unix_address(path));

  	if (!ok) {
  		cerr << "Error connecting to UNIX socket at " << path
  			<< "\n\t" << conn.last_error_str() << endl;
  		return 1;
  	}
  
  	cout << "Created a connection to '" << conn.peer_address() << "'" << endl;
  
  	string s, sret;
  
      random_device rd;
      mt19937 reng(rd());
      uniform_int_distribution<char> dist(0, 25);
  
  	for (size_t i=0; i<sz; ++i)
  		s.push_back('a' + dist(reng));
  
  	auto t_start_tx = high_resolution_clock::now();
  
  	for (size_t i=0; i<n; ++i) {
  		if (conn.write(s) != (ssize_t) s.length()) {
  			cerr << "Error writing to the UNIX stream" << endl;
  			break;
  		}
  
  		sret.resize(s.length());
  		int n = conn.read_n(&sret[0], s.length());
  
  		if (n != (int) s.length()) {
  			cerr << "Error reading from UNIX stream" << endl;
  			break;
  		}
  	}
  
  	auto t_end = high_resolution_clock::now();
  	cout << "Total time: " << fpsec(t_end - t_start).count() << "s" << endl;
  
  	auto t_tx = fpsec(t_end - t_start_tx).count();
  	auto rate = size_t(n / t_tx);
  	cout << "Transfer time: " << t_tx << "s\n    "
  		<< rate << " msg/s" << endl;
  
  	return (!conn) ? 1 : 0;
  }