client.cpp

这是广泛使用的通信开源项目,对于大容量,高并发的通讯要求完全能够胜任,他广泛可用于网络游戏医学图像网关的高qos要求.更详细的内容可阅读相应的材料

// client.cpp,v 1.1 2002/11/04 19:56:39 bala Exp

#include "Echo.h"
#include "Client_Task.h"
#include "tao/Utils/Servant_Var.h"
#include "ace/Get_Opt.h"
#include "tao/Messaging/Messaging.h"


ACE_RCSID (Bug_1020_Basic_Regression,
           client,
           "client.cpp,v 1.1 2002/11/04 19:56:39 bala Exp")

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

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

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

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


int
main (int argc, char *argv[])
{
  ACE_TRY_NEW_ENV
    {
      CORBA::ORB_var orb =
        CORBA::ORB_init (argc, argv, ""
                         ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      CORBA::Object_var poa_object =
        orb->resolve_initial_references("RootPOA"
                                        ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

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

      if (CORBA::is_nil (root_poa.in ()))
        ACE_ERROR_RETURN ((LM_ERROR,
                           " (%P|%t) Panic: nil RootPOA\n"),
                          1);

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

      CORBA::Object_var object =
        orb->resolve_initial_references ("PolicyCurrent"
                                         ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      CORBA::PolicyCurrent_var policy_current =
        CORBA::PolicyCurrent::_narrow (object.in ()
                                       ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      if (CORBA::is_nil (policy_current.in ()))
        {
          ACE_ERROR ((LM_ERROR,
                      "ERROR: Nil policy current\n"));
          return 1;
        }
      CORBA::Any scope_as_any;
      scope_as_any <<= Messaging::SYNC_WITH_TRANSPORT;

      CORBA::PolicyList policies(1);
      policies.length (1);
      policies[0] =
        orb->create_policy (Messaging::SYNC_SCOPE_POLICY_TYPE,
                            scope_as_any
                            ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      policy_current->set_policy_overrides (policies,
                                            CORBA::ADD_OVERRIDE
                                            ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      policies[0]->destroy (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;

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

      TAO::Utils::Servant_Var<Echo> impl;
      {
        Echo * tmp;
        // ACE_NEW_RETURN is the worst possible way to handle
        // exceptions (think: what if the constructor allocates memory
        // and fails?), but I'm not in the mood to fight for a more
        // reasonable way to handle allocation errors in ACE.
        ACE_NEW_RETURN (tmp,
                        Echo (orb.in (), 100),
                        1);
        impl = tmp;
      }

      Test::Echo_var echo =
        impl->_this (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;

      CORBA::Object_var tmp =
        orb->string_to_object(ior
                              ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      Test::Echo_Caller_var server =
        Test::Echo_Caller::_narrow(tmp.in ()
                              ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      if (CORBA::is_nil (echo.in ()))
        {
          ACE_ERROR_RETURN ((LM_DEBUG,
                             "Nil Test::Echo_Caller reference <%s>\n",
                             ior),
                            1);
        }

      poa_manager->activate (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;

      Client_Task ctask (orb.in ());

      server->start_task (echo.in()
                          ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      if (ctask.activate (THR_NEW_LWP | THR_JOINABLE,
                          4,
                          1) == -1)
        {
          ACE_ERROR ((LM_ERROR,
                      "Error activating client task\n"));

          return 1;
        }

      ACE_Thread_Manager::instance ()->wait ();

      ACE_DEBUG ((LM_DEBUG, "(%P|%t) client - event loop finished\n"));

      // Actually the code here should never be reached.
      root_poa->destroy (1,
                         1
                         ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      orb->destroy (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;
    }
  ACE_CATCHANY
    {
      ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
                           "Exception caught:");
      return 1;
    }
  ACE_ENDTRY;

  return 0;
}