// $Id: peer.cpp 93658 2011-03-28 11:22:55Z johnnyw $

#include "Peer_i.h"
#include "ace/Get_Opt.h"
#include "ace/Task.h"
#include "ace/Sched_Params.h"
#include "ace/OS_NS_errno.h"

const ACE_TCHAR *ior = ACE_TEXT("file://progress.ior");
int nthreads = 4;
int interval = 0; // microseconds

int
parse_args (int argc, ACE_TCHAR *argv[])
{
  ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("k:n:t:"));
  int c;

  while ((c = get_opts ()) != -1)
    switch (c)
      {
      case 'k':
        ior = get_opts.opt_arg ();
        break;

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

      case 't':
        interval = ACE_OS::atoi (get_opts.opt_arg ());
        break;

      case '?':
      default:
        ACE_ERROR_RETURN ((LM_ERROR,
                           "usage:  %s "
                           "-k <iorfile>"
                           "-n <threads>"
                           "-t <microseconds>"
                           "\n",
                           argv [0]),
                          -1);
      }
  // Indicates successful parsing of the command line
  return 0;
}

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

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

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

int
ACE_TMAIN(int argc, ACE_TCHAR *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"));
    }

  try
    {
      CORBA::ORB_var orb =
        CORBA::ORB_init (argc, argv);

      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 ());

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

      poa_manager->activate ();

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

      CORBA::Object_var progress_object =
        orb->string_to_object (ior);

      Progress_var progress =
        Progress::_narrow (progress_object.in ());

      ACE_Time_Value delay (0, interval);

      Peer_i peer;
      peer.init (orb.in (),
                 progress.in (),
                 delay);

      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"));
    }
  catch (const CORBA::Exception& ex)
    {
      ex._tao_print_exception ("Caught exception:");
      return 1;
    }

  return 0;
}

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

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

int
Worker::svc (void)
{
  ACE_DEBUG ((LM_DEBUG, "(%P|%t) starting event loop\n"));
  this->orb_->run ();
  return 0;
}
