path: root/TAO/performance-tests/Latency/ami-throughput-client.cpp

// $Id$

#include "ace/Get_Opt.h"
#include "ace/Task.h"
#include "ace/Stats.h"
#include "ace/High_Res_Timer.h"
#include "ace/Sched_Params.h"
#include "testS.h"

ACE_RCSID(Latency, client, "$Id$")

const char *ior = "file://test.ior";

size_t niterations = 5;

int sleep_flag = 0;

int done = 0;

ACE_hrtime_t *latency_base_array;

ACE_hrtime_t throughput_base;

ACE_Throughput_Stats throughput_stats;

int
parse_args (int argc, char *argv[])
{
  ACE_Get_Opt get_opts (argc, argv, "k:n:i:s");
  int c;

  while ((c = get_opts ()) != -1)
    switch (c)
      {
      case 'k':
        ior = get_opts.optarg;
        break;
        // case 'n':
        // nthreads = ACE_OS::atoi (get_opts.optarg);
        // break;
      case 'i':
        niterations = ACE_OS::atoi (get_opts.optarg);
        break;
      case 's':
        sleep_flag = 1;
        break;
      case '?':
      default:
        ACE_ERROR_RETURN ((LM_ERROR,
                           "usage:  %s "
                           "-k <ior> "
                           // "-n <nthreads> "
                           "-i <niterations> "
                           "-s "
                           "\n",
                           argv [0]),
                          -1);
      }
  // Indicates sucessful parsing of the command line
  return 0;
}

// *********************************************************************

class Handler : public POA_AMI_Test_Handler
{
public:
  Handler (CORBA::ORB_ptr orb)
    : nreplies_received_ (0),
      orb_ (orb)
    {};

  void test_method (CORBA::Environment &)
    {
      // Get the currect time.
      ACE_hrtime_t now = ACE_OS::gethrtime ();

      // Take the sample.
      throughput_stats.sample (now - throughput_base,
                               now - latency_base_array [this->nreplies_received_]);

      // Inc count.
      this->nreplies_received_++;

      // Check for end.
      if (this->nreplies_received_ == niterations)
        {
          done = 1;
          if (sleep_flag)
            orb_->shutdown ();
        }
    };

  ~Handler (void) {};

private:
  size_t nreplies_received_;
  // Number of replies received so far.

  CORBA::ORB_ptr orb_;
  // ORB pointer.
};

// *********************************************************************

class Reply_Handler_Task : public ACE_Task_Base
{
  // = TITLE
  //     Run the thread handling the reply.
  //
  // = DESCRIPTION
  //     Use the ACE_Task_Base class to run the reply handling.
  //
public:
  Reply_Handler_Task (void);
  // Constructor.

  void set (Test_ptr server,
            int niterations,
            CORBA::ORB_ptr orb,
            AMI_Test_Handler_ptr reply_handler);
  // Set the test attributes.

  void accumulate_into (ACE_Throughput_Stats &throughput) const;
  // Accumulate the throughput statistics into <throughput>

  void dump_stats (const char* msg, ACE_UINT32 gsf);
  // Accumulate the throughput statistics into <throughput>

  // = The ACE_Task_Base methods....
  virtual int svc (void);

private:
  Test_var server_;
  // The server.

  int niterations_;
  // The number of iterations on each client thread.

  CORBA::ORB_ptr orb_;
  // Cache the ORB pointer.

  AMI_Test_Handler_ptr reply_handler_;
  // ReplyHandler object.
};

// *********************************************************************

int
main (int argc, char *argv[])
{
  int priority =
    (ACE_Sched_Params::priority_min (ACE_SCHED_FIFO)
     + ACE_Sched_Params::priority_max (ACE_SCHED_FIFO)) / 2;
  // Enable FIFO scheduling, e.g., RT scheduling class on Solaris.

  if (ACE_OS::sched_params (ACE_Sched_Params (ACE_SCHED_FIFO,
                                              priority,
                                              ACE_SCOPE_PROCESS)) != 0)
    {
      if (ACE_OS::last_error () == EPERM)
        {
          ACE_DEBUG ((LM_DEBUG,
                      "server (%P|%t): user is not superuser, "
                      "test runs in time-shared class\n"));
        }
      else
        ACE_ERROR ((LM_ERROR,
                    "server (%P|%t): sched_params failed\n"));
    }

  ACE_TRY_NEW_ENV
    {
      ACE_DEBUG ((LM_DEBUG, "High res. timer calibration...."));
      ACE_High_Res_Timer::calibrate ();
      ACE_DEBUG ((LM_DEBUG, "done\n"));

      CORBA::ORB_var orb =
        CORBA::ORB_init (argc, argv, "", ACE_TRY_ENV);
      ACE_TRY_CHECK;

      if (parse_args (argc, argv) != 0)
        return 1;

      CORBA::Object_var object =
        orb->string_to_object (ior, ACE_TRY_ENV);
      ACE_TRY_CHECK;

      Test_var server =
        Test::_narrow (object.in (), ACE_TRY_ENV);
      ACE_TRY_CHECK;

      if (CORBA::is_nil (server.in ()))
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "Object reference <%s> is nil\n",
                             ior),
                            1);
        }

      // ReplyHandler object.
      Handler handler (orb);
      AMI_Test_Handler_var reply_handler = handler._this (ACE_TRY_ENV);
      ACE_TRY_CHECK;

      // Activate POA to handle the call back.

      CORBA::Object_var poa_object =
        orb->resolve_initial_references("RootPOA");
      if (CORBA::is_nil (poa_object.in ()))
        ACE_ERROR_RETURN ((LM_ERROR,
                           " (%P|%t) Unable to initialize the POA.\n"),
                          1);

      PortableServer::POA_var root_poa =
        PortableServer::POA::_narrow (poa_object.in (), ACE_TRY_ENV);
      ACE_TRY_CHECK;

      PortableServer::POAManager_var poa_manager =
        root_poa->the_POAManager (ACE_TRY_ENV);
      ACE_TRY_CHECK;

      poa_manager->activate (ACE_TRY_ENV);
      ACE_TRY_CHECK;

      // Initiate the Handler task to receive replies.

      Reply_Handler_Task reply_handler_task;

      // Init the Reply Handler task.
      reply_handler_task.set (server.in (),
                              niterations,
                              orb,
                              reply_handler.in ());

      // Activate Reply Handler task.
      if (reply_handler_task.activate (THR_BOUND | THR_SCHED_FIFO | THR_NEW_LWP | THR_JOINABLE,
                                       1,
                                       1,
                                       priority + 1) != 0)
        ACE_ERROR_RETURN ((LM_ERROR,
                           "%p\n",
                           "Cannot activate client threads"),
                          1);

      // Allocate memory for latency base array.
      ACE_NEW_RETURN (latency_base_array,
                      ACE_hrtime_t [niterations],
                      1);

      // Init global throughput base.
      throughput_base = ACE_OS::gethrtime ();

      // Issue asynchronous invocations.
      for (size_t i = 0; i < niterations; ++i)
        {
          // Get timestamp.
          latency_base_array [i] = ACE_OS::gethrtime ();

          // Invoke asynchronous operation.
          server->sendc_test_method (reply_handler.in (),
                                     ACE_TRY_ENV);
          ACE_TRY_CHECK;

          if (TAO_debug_level > 0 && i % 100 == 0)
            ACE_DEBUG ((LM_DEBUG, "(%P|%t) iteration = %d\n", i));
        }

      // Wait for the Reply Handler task.
      ACE_Thread_Manager::instance ()->wait ();

      ACE_DEBUG ((LM_DEBUG, "threads finished\n"));

      // Output statistics.

      ACE_Throughput_Stats throughput;
      char buf[64];
      ACE_UINT32 gsf = ACE_High_Res_Timer::global_scale_factor ();

      reply_handler_task.accumulate_into (throughput);

      ACE_OS::sprintf (buf, "Reply Handler Thread");
      reply_handler_task.dump_stats (buf, gsf);

      throughput.dump_results ("Aggregated", gsf);

      // server->shutdown (ACE_TRY_ENV);
      // ACE_TRY_CHECK;
    }
  ACE_CATCHANY
    {
      ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
                           "Catched exception:");
      return 1;
    }
  ACE_ENDTRY;

  return 0;
}

// ****************************************************************

Reply_Handler_Task::Reply_Handler_Task (void)
  : niterations_ (0),
    orb_ (0),
    reply_handler_ (0)
{
}

void
Reply_Handler_Task::set (Test_ptr server,
                         int niterations,
                         CORBA::ORB_ptr orb,
                         AMI_Test_Handler_ptr reply_handler)
{
  this->server_ = Test::_duplicate (server);
  this->niterations_ = niterations;
  this->orb_ = orb;
  this->reply_handler_ = reply_handler;
}

int
Reply_Handler_Task::svc (void)
{
  if (sleep_flag)
    // Spend 10 msecs running the ORB.
    this->orb_->run ();
  else
    while (!done)
      this->orb_->perform_work ();
  return 0;
}

void
Reply_Handler_Task::accumulate_into (ACE_Throughput_Stats &t) const
{
  t.accumulate (throughput_stats);
}

void
Reply_Handler_Task::dump_stats (const char* msg, ACE_UINT32 gsf)
{
  throughput_stats.dump_results (msg, gsf);
}