代码片断：TAO中设置ORB超时

初始化ORB与设置超时

最新推荐文章于 2025-08-10 12:37:29 发布

最新推荐文章于 2025-08-10 12:37:29 发布 · 129 阅读

本文介绍了一个名为TAO_Notify_Service_Driver的类中初始化ORB并应用超时策略的方法。该方法首先通过调用CORBA::ORB_init来初始化一个ORB实例，并随后如果设置了超时值，则会进一步设置ORB的相对实时超时策略。

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代码出处：Notification Service

int
TAO_Notify_Service_Driver::init_dispatching_ORB (int& argc, ACE_TCHAR *argv [])
{
  this->dispatching_orb_ = CORBA::ORB_init (argc, argv, "dispatcher");

  this->apply_timeout (this->dispatching_orb_.in ());

  return 0;
}

void
TAO_Notify_Service_Driver::apply_timeout (CORBA::ORB_ptr orb)
{
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
  if (this->timeout_ != 0)
    {
      // convert from msec to "TimeT"
      CORBA::Any timeout;
      TimeBase::TimeT value = 10000 * this->timeout_;
      timeout <<= value;

      CORBA::Object_var object =
        orb->resolve_initial_references ("ORBPolicyManager");
      CORBA::PolicyManager_var policy_manager =
        CORBA::PolicyManager::_narrow (object.in ());
      if (CORBA::is_nil (policy_manager.in ()))
        throw CORBA::INTERNAL ();

      CORBA::PolicyList policy_list (1);
      policy_list.length (1);
      policy_list[0] = orb->create_policy (
                            Messaging::RELATIVE_RT_TIMEOUT_POLICY_TYPE,
                              timeout);
      policy_manager->set_policy_overrides (policy_list, CORBA::SET_OVERRIDE);
      policy_list[0]->destroy ();
  }
#else
  ACE_UNUSED_ARG (orb);
#endif /* TAO_HAS_CORBA_MESSAGING != 0 */
}