C++ Any_var::_retn方法代码示例

CORBA::Any *
test_i::get_value (CORBA::Long offset)
{
  CORBA::Any_ptr retval_ptr = 0;
  ACE_NEW_THROW_EX (retval_ptr,
                    CORBA::Any,
                    CORBA::NO_MEMORY ());
  CORBA::Any_var retval = retval_ptr;

  switch (offset)
  {
    case 1:
    {
      obvmod::tcOffset1 *vt1 = 0;
      ACE_NEW_RETURN (vt1,
                      tcOffset1_i,
                      0);
      vt1->mem (offset);
      retval.inout () <<= &vt1;
      break;
    }
    case 3:
    {
      obvmod::tcOffset003 *vt3 = 0;
      ACE_NEW_RETURN (vt3,
                      tcOffset3_i,
                      0);
      vt3->mem (offset);
      retval.inout () <<= &vt3;
      break;
    }
    case 5:
    {
      obvmod::tcOffset00005 *vt5 = 0;
      ACE_NEW_RETURN (vt5,
                      tcOffset5_i,
                      0);
      vt5->mem (offset);
      retval.inout () <<= &vt5;
      break;
    }
    case 7:
    {
      obvmod::tcOffset0000007 *vt7 = 0;
      ACE_NEW_RETURN (vt7,
                      tcOffset7_i,
                      0);
      vt7->mem (offset);
      retval.inout () <<= &vt7;
      break;
    }
    default:
      return 0;
  }

  return retval._retn ();
}

CORBA::Any*
CEC_Pull_Counting_Consumer::try_pull (CORBA::Boolean_out has_event)
{
  if (CORBA::is_nil (this->supplier_proxy_.in ()))
    {
      has_event = 0;
      return 0;
    }

  CORBA::Any_var event =
    this->supplier_proxy_->try_pull (has_event);

  if (has_event)
    this->event_count++;

  return event._retn ();
}

int
TAO_Log_Constraint_Visitor::visit_component_array (
    ETCL_Component_Array *array)
{
  try
    {
      // If we are here (from visit_component) the Any containing the
      // component as found in property_lookup_ will be in current_member_.
      CORBA::TypeCode_var tc = this->current_member_->type ();
      CORBA::TCKind kind = TAO_DynAnyFactory::unalias (tc.in ());

      DynamicAny::DynAny_var member;
      CORBA::Boolean success = 0;
      CORBA::ULong slot = (CORBA::ULong) *array->integer ();

      switch (kind)
      {
        case CORBA::tk_array:
          {
            TAO_DynEnum_i dyn_array;
            dyn_array.init (this->current_member_.in ());

            success = dyn_array.seek (slot);

            if (success == 0)
              {
                return -1;
              }

            member = dyn_array.current_component ();

            break;
          }
        case CORBA::tk_sequence:
          {
            TAO_DynStruct_i dyn_sequence;
            dyn_sequence.init (this->current_member_.in ());

            success = dyn_sequence.seek (slot);

            if (success == 0)
              {
                return -1;
              }

            member =
              dyn_sequence.current_component ();

            break;
          }
        // Enums and sequences are the only two cases handled
        // by Component_Array.
        default:
          return -1;
      }

      CORBA::Any_var value = member->to_any ();

      ETCL_Constraint *comp = array->component ();

      if (comp == 0)
        {
          TAO_ETCL_Literal_Constraint result (value.ptr ());
          this->queue_.enqueue_head (result);
          return 0;
        }
      else
        {
          this->current_member_ = value._retn ();
          return comp->accept (this);
        }
    }
  catch (const CORBA::Exception&)
    {
      return -1;
    }
}

void
ReplicaController::send_reply (
  PortableInterceptor::ServerRequestInfo_ptr ri)
{
  FT::FTRequestServiceContext_var ftr (
    extract_context (ri));


  ACE_DEBUG ((LM_DEBUG,
              "(%P|%t) Sending reply for %s with rid %i\n",
              ftr->client_id.in (),
              ftr->retention_id));


  // Prepare reply for logging.

  CORBA::Any_var result =
    ri->result ();

  TAO_OutputCDR cdr;
  result->impl ()->marshal_value (cdr);

  Dynamic::ParameterList_var pl =
    ri->arguments ();

  CORBA::ULong len = pl->length ();

  for (CORBA::ULong index = 0; index != len ; ++index)
  {
    //@@ No chance for PARAM_OUT
    if ((*pl)[index].mode == CORBA::PARAM_INOUT)
    {
      (*pl)[index].argument.impl ()->marshal_value (cdr);
    }
  }

  CORBA::OctetSeq_var reply;

  ACE_NEW (reply.out (), CORBA::OctetSeq (cdr.total_length ()));

  reply->length (cdr.total_length ());

  CORBA::Octet* buf = reply->get_buffer ();

  // @@ What if this throws an exception??  We don't have any way to
  // check whether this succeeded
  for (ACE_Message_Block const* mb = cdr.begin ();
       mb != 0;
       mb = mb->cont ())
  {
    ACE_OS::memcpy (buf, mb->rd_ptr (), mb->length ());
    buf += mb->length ();
  }

  // Logging the reply and state update.
  //

  // First send message to members.
  //
  {
    // Extract state update.

    CORBA::OctetSeq_var oid = ri->object_id ();
    PortableInterceptor::AdapterName_var an = ri->adapter_name ();

    CORBA::Any_var state = ri->get_slot (state_slot_id ());

    CORBA::TypeCode_var tc = state->type ();

    if (tc->kind () == CORBA::tk_null)
    {
      ACE_DEBUG ((LM_DEBUG, "Slot update is void\n"));

      PortableServer::POA_var poa = resolve_poa (an.in ());

      PortableServer::ServantBase_var servant =
        poa->id_to_servant (oid.in ());

      Checkpointable* target =
        dynamic_cast<Checkpointable*> (servant.in ());

      if (target)
      {
        CORBA::Any_var tmp = target->get_state ();

        if (tmp.ptr () != 0) state = tmp._retn ();
      }
    }

    TAO_OutputCDR cdr;

    cdr << oid.in ();
    cdr << an.in ();
    cdr << ftr->client_id.in ();
    cdr << ftr->retention_id;
    cdr << reply.in ();
    cdr << state.in ();

    size_t size = cdr.total_length ();

//.........这里部分代码省略.........