C++ ACE_High_Res_Timer::start_incr方法代码示例

int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  ACE_Time_Value timeout (ACE_DEFAULT_TIMEOUT);

  //unsigned char selector = ACE_ATM_Addr::DEFAULT_SELECTOR;
  //int selector_specified = 0;

  if (argc > 2)
    ACE_ERROR_RETURN ((LM_ERROR,
                       "Usage: %s [selector]\n",
                       argv[0]),
                      1);

  // Create a server address.
  ACE_ATM_Addr addr;
  //if (selector_specified)
  unsigned char selector = ( argc == 2 ) ? ACE_OS::atoi( argv[ 1 ]) : ACE_ATM_Addr::DEFAULT_SELECTOR;
  addr.set_selector( selector );
  ACE_OS::printf( "ATM_Server: selector changed to %d\n", addr.get_selector());


  // Create a server, reuse the addr.
  ACE_ATM_Acceptor  peer_acceptor;
  ACE_ATM_Params    params;

  // Not sure why but reuse_addr set to true/1 causes problems for
  // FORE/XTI/ATM - this is now handled in ACE_ATM_Acceptor::open()

  ACE_HANDLE ret = peer_acceptor.open (addr, 5, params);
  if ( ret == ACE_INVALID_HANDLE )
    ACE_ERROR_RETURN ((LM_ERROR,
                       "%p\n",
                       "open"),
                      -1);

  ACE_ATM_Stream new_stream;
  ACE_ATM_Addr local_addr;

  local_addr.set_selector( selector );
  peer_acceptor.get_local_addr( local_addr );

  ACE_DEBUG ((LM_DEBUG,
              "starting server at address %s\n",
              local_addr.addr_to_string ()));

  // Performs the iterative server activities
  char buf[BUFSIZ];
  ACE_High_Res_Timer timer;
  int total;
  ACE_Time_Value tv;
  double real_time;
  double actual_rate;

  for (;;)
  {
    // Create a new ACE_ATM_Stream endpoint (note automatic restart
    // if errno == EINTR).
    ACE_OS::printf( "ATM_Server: expecting clients\n" );

    if (peer_acceptor.accept (new_stream,
                              &addr,
                              &timeout) == -1)
    {
      ACE_ERROR ((LM_ERROR,
                  "%p\n",
                  "accept"));
      continue;
    }

    ACE_OS::printf( "ATM_Server: got a connection\n" );

    ACE_UINT16 vpi, vci;
    vpi = vci = 0;
    // This has problem on PMP connections on NT
    //new_stream.get_vpi_vci(vpi, vci);
    ACE_DEBUG ((LM_DEBUG,
                "connected to VPI %d VCI %d\n",
                vpi, vci));

    ACE_OS::printf( "ATM_Server: connection accepted\n" );

    ACE_DEBUG ((LM_DEBUG,
                "client %s connected\n",
                addr.addr_to_string ()));
    ACE_DEBUG ((LM_DEBUG,
                "client %s connected to host\n",
                new_stream.get_peer_name ()));

    // Read data from client (terminate on error).

    int recvd = 0;

    for ( ;; )
    {
      total = 0;
      timer.start_incr();

      for (int r_bytes;
           (r_bytes = new_stream.recv (buf, sizeof buf, 0)) > 0; )
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                     params,
                     qos,
                     (ACE_Time_Value *) &ACE_Time_Value::zero,
                     local_addr,
                     0,
                     0 ) == -1) {
      if (errno != EWOULDBLOCK)
	      ACE_ERROR_RETURN ((LM_ERROR,
                          "%p\n",
                          "ATM_Client: connection failed"),
                          1);

      ACE_DEBUG ((LM_DEBUG,
                    "ATM_Client: starting timed connection\n"));

      // Check if non-blocking connection is in progress, and wait up
      // to timeout seconds for it to complete.
      ACE_Time_Value tv (timeout);

      ACE_OS::printf( "ATM_Client: connection completed\n" );
      if (con.complete (atm_stream,
                        &hosts[ 0 ],
                        &tv) == -1)
		    ACE_ERROR_RETURN ((LM_ERROR,
                          "%p\n",
                          "ATM_Client: connection failed"),
                          1);
      else
		    ACE_DEBUG ((LM_DEBUG,
                   "ATM_Client: connected to %s\n",
		               hosts[ 0 ].addr_to_string()));
    }
  } else {
    // Point-to-multipoint connection
    for ( int i = 0; i < num_leaves; i++ ) {
      con.add_leaf( atm_stream,
                    hosts[ i ],
                    i,
                    0 );

    }
  } /* if num_leaves == 1 */

  ACE_UINT16 vpi, vci;
  atm_stream.get_vpi_vci(vpi, vci);
  ACE_DEBUG ((LM_DEBUG,
              "ATM_Client: connected to VPI %d VCI %d\n",
              vpi, vci));

  // Send data to server (correctly handles "incomplete writes").

  int s_bytes;
  int total;
  int xmit = 0;
  ACE_High_Res_Timer timer;
  ACE_Time_Value elapsed;
  double real_time;
  double actual_rate;

  for ( ;; ) {
    total = 0;

    timer.start_incr();

    for ( ;; ) {
      s_bytes = atm_stream.send_n( buf, BUFSIZ, 0 );
      if ( s_bytes == -1 )
        ACE_ERROR_RETURN ((LM_ERROR,
                           "%p\n",
                           "send_n"),
                           1);

      total += s_bytes;

      if ( total >= session * pdu_size )
        break;
    }

    timer.stop_incr();
    timer.elapsed_time_incr( elapsed );
    real_time = elapsed.sec() * ACE_ONE_SECOND_IN_USECS + elapsed.usec();
    xmit += total;
    actual_rate = ( double )xmit * ( double )8 / real_time;

    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("(%t) bytes = %d, usec = %f, rate = %0.00f Mbps\n"),
                xmit,
                real_time,
                actual_rate < 0 ? 0 : actual_rate ));
  }

  // Explicitly close the connection.
  ACE_OS::printf( "ATM_Client: close connection\n" );
  if (atm_stream.close () == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       "%p\n",
                       "close"),
                       -1);
  return 0;
}

int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
  int n = 100;
  int low = 64;
  int hi = 4096;
  int s = 4;
  int quiet = 0;

  ACE_Get_Opt get_opt (argc, argv, ACE_TEXT("dn:l:h:s:q"));
  int opt;

  while ((opt = get_opt ()) != EOF)
    {
      switch (opt)
        {
        case 'd':
          TAO_debug_level++;
          break;
        case 'n':
          n = ACE_OS::atoi (get_opt.opt_arg ());
          break;
        case 'l':
          low = ACE_OS::atoi (get_opt.opt_arg ());
          break;
        case 'h':
          hi = ACE_OS::atoi (get_opt.opt_arg ());
          break;
        case 's':
          s = ACE_OS::atoi (get_opt.opt_arg ());
          break;
        case 'q':
          quiet = 1;
          break;
        case '?':
        default:
          ACE_DEBUG ((LM_DEBUG,
                      "Usage: %s "
                      "-d debug"
                      "-l low "
                      "-h high "
                      "-s step "
                      "-n n "
                      "\n"
                      "Writes and then reads longs to a CDR stream "
                      "starting from <low> up to <high> incrementing "
                      "by <step>, at each step run <n> iterations to "
                      "average."
                      "\n",
                      argv[0]));
          return -1;
        }
    }

  for (int x = low; x <= hi; x += s)
    {
      ACE_High_Res_Timer writing;
      ACE_High_Res_Timer reading;
      if (TAO_debug_level > 0)
        ACE_DEBUG ((LM_DEBUG, "\nx= %d\n", x));

      for (int i = 0; i < n; ++i)
        {
          writing.start_incr ();
          TAO_OutputCDR output;

          if (test_write (output, x) != 0)
            {
              return 1;
            }
          writing.stop_incr ();

          reading.start_incr ();
          TAO_InputCDR input (output);
          if (test_read (input, x) != 0)
            {
              return 1;
            }
          reading.stop_incr ();
        }
      double m = n * x;

      ACE_Time_Value wtv;
      writing.elapsed_time_incr (wtv);
      ACE_hrtime_t wusecs = wtv.sec ();
      wusecs *= static_cast<ACE_UINT32> (ACE_ONE_SECOND_IN_USECS);
      wusecs += wtv.usec ();

      ACE_Time_Value rtv;
      reading.elapsed_time_incr (rtv);
      ACE_hrtime_t rusecs = rtv.sec ();
      rusecs *= static_cast<ACE_UINT32> (ACE_ONE_SECOND_IN_USECS);
      rusecs += rtv.usec ();

      double write_average = ACE_HRTIME_CONVERSION(wusecs) / m;
      double read_average = ACE_HRTIME_CONVERSION(rusecs) / m;
      if (!quiet)
        ACE_OS::printf ("AVE: %d %f %f\n",
                        x, write_average, read_average);
    }
//.........这里部分代码省略.........