// $Id$

#include "test_i.h"
#include "ace/Get_Opt.h"
#include "ace/Task.h"
#include "ace/Sched_Params.h"

#include "tao/Strategies/advanced_resource.h"

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

const char *ior_output_file = "test.ior";
int nthreads = 4;
int workload = 0;

int
parse_args (int argc, char *argv[])
{
  ACE_Get_Opt get_opts (argc, argv, "o:n:w:");
  int c;

  while ((c = get_opts ()) != -1)
    switch (c)
      {
      case 'o':
        ior_output_file = get_opts.optarg;
        break;

      case 'n':
        nthreads = ACE_OS::atoi (get_opts.optarg);
        break;

      case 'w':
        workload = ACE_OS::atoi (get_opts.optarg);
        break;

      case '?':
      default:
        ACE_ERROR_RETURN ((LM_ERROR,
                           "usage:  %s "
                           "-o <iorfile>"
                           "\n",
                           argv [0]),
                          -1);
      }
  // Indicates sucessful parsing of the command line
  return 0;
}

class Worker : public ACE_Task_Base
{
  // = TITLE
  //   Run a server thread
  //
  // = DESCRIPTION
  //   Use the ACE_Task_Base class to run server threads
  //
public:
  Worker (CORBA::ORB_ptr orb);
  // ctor

  virtual int svc (void);
  // The thread entry point.

private:
  CORBA::ORB_var orb_;
  // The orb
};

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;

  priority = ACE_Sched_Params::next_priority (ACE_SCHED_FIFO,
                                              priority);

  priority = ACE_Sched_Params::next_priority (ACE_SCHED_FIFO,
                                              priority);

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

      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;

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

      Test_i server_impl (orb.in (), workload);

      Test_var server =
        server_impl._this (ACE_TRY_ENV);
      ACE_TRY_CHECK;

      CORBA::String_var ior =
        orb->object_to_string (server.in (), ACE_TRY_ENV);
      ACE_TRY_CHECK;

      ACE_DEBUG ((LM_DEBUG, "Activated as <%s>\n", ior.in ()));

      // If the ior_output_file exists, output the ior to it
      if (ior_output_file != 0)
        {
          FILE *output_file= ACE_OS::fopen (ior_output_file, "w");
          if (output_file == 0)
            ACE_ERROR_RETURN ((LM_ERROR,
                               "Cannot open output file for writing IOR: %s",
                               ior_output_file),
                              1);
          ACE_OS::fprintf (output_file, "%s", ior.in ());
          ACE_OS::fclose (output_file);
        }

      poa_manager->activate (ACE_TRY_ENV);
      ACE_TRY_CHECK;

      {
        Worker worker (orb.in ());
        if (worker.activate (THR_NEW_LWP | THR_JOINABLE,
                             nthreads) != 0)
          ACE_ERROR_RETURN ((LM_ERROR,
                             "Cannot activate client threads\n"),
                            1);

        worker.thr_mgr ()->wait ();
      }

      ACE_DEBUG ((LM_DEBUG, "event loop finished\n"));

      orb->destroy (ACE_TRY_ENV);
      ACE_TRY_CHECK;

      ACE_DEBUG ((LM_DEBUG, "orb destroyed\n"));
    }
  ACE_CATCHANY
    {
      ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
                           "Exception caught:");
      return 1;
    }
  ACE_ENDTRY;

  return 0;
}

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

Worker::Worker (CORBA::ORB_ptr orb)
  :  orb_ (CORBA::ORB::_duplicate (orb))
{
}

int
Worker::svc (void)
{
  this->orb_->run ();
  return 0;
}