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// $Id$
#include "orbsvcs/orbsvcs/Event/ECG_UDP_Receiver.h"
#include "orbsvcs/orbsvcs/Event_Utilities.h"
#include "ace/SString.h"
#if !defined(__ACE_INLINE__)
#include "ECG_UDP_Receiver.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID (Event,
ECG_UDP_Receiver,
"$Id$")
// ****************************************************************
TAO_ECG_UDP_Receiver::~TAO_ECG_UDP_Receiver (void)
{
this->consumer_proxy_ =
RtecEventChannelAdmin::ProxyPushConsumer::_nil ();
if (this->handler_rptr_.get ())
this->handler_rptr_->shutdown ();
}
void
TAO_ECG_UDP_Receiver::init (RtecEventChannelAdmin::EventChannel_ptr lcl_ec,
TAO_ECG_Refcounted_Endpoint ignore_from,
RtecUDPAdmin::AddrServer_ptr addr_server
ACE_ENV_ARG_DECL)
{
// Verify arguments.
// <addr_server> is allowed to be nil. But then, if get_addr () method
// is invoked, it throws an exception.
if (CORBA::is_nil (lcl_ec))
{
ACE_ERROR ((LM_ERROR,
"TAO_ECG_UDP_Receiver::init(): "
"<lcl_ec> argument is nil."));
ACE_THROW (CORBA::INTERNAL ());
}
this->cdr_receiver_.init (ignore_from);
this->lcl_ec_ =
RtecEventChannelAdmin::EventChannel::_duplicate (lcl_ec);
this->addr_server_ =
RtecUDPAdmin::AddrServer::_duplicate (addr_server);
}
void
TAO_ECG_UDP_Receiver::connect (const RtecEventChannelAdmin::SupplierQOS& pub
ACE_ENV_ARG_DECL)
{
if (CORBA::is_nil (this->lcl_ec_.in ()))
{
ACE_ERROR ((LM_ERROR,
"Error initializing TAO_ECG_UDP_Receiver: "
"init() hasn't been called before connect()."));
ACE_THROW (CORBA::INTERNAL ());
}
if (pub.publications.length () == 0)
{
ACE_ERROR ((LM_ERROR,
"TAO_ECG_UDP_Receiver::connect(): "
"0-length publications argument."));
ACE_THROW (CORBA::INTERNAL ());
}
if (CORBA::is_nil (this->consumer_proxy_.in ()))
{
this->new_connect (pub ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
}
else
{
this->reconnect (pub ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
}
}
void
TAO_ECG_UDP_Receiver::new_connect (const RtecEventChannelAdmin::SupplierQOS& pub
ACE_ENV_ARG_DECL)
{
// Activate with poa.
RtecEventComm::PushSupplier_var supplier_ref;
PortableServer::POA_var poa = this->_default_POA ();
TAO_EC_Object_Deactivator deactivator;
activate (supplier_ref,
poa.in (),
this,
deactivator
ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
// Connect as a supplier to the local EC.
RtecEventChannelAdmin::SupplierAdmin_var supplier_admin =
this->lcl_ec_->for_suppliers (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
RtecEventChannelAdmin::ProxyPushConsumer_var proxy =
supplier_admin->obtain_push_consumer (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
ECG_Receiver_Auto_Proxy_Disconnect new_proxy_disconnect (proxy.in ());
proxy->connect_push_supplier (supplier_ref.in (),
pub
ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
// Update resource managers.
this->consumer_proxy_ = proxy._retn ();
this->auto_proxy_disconnect_.set_command (new_proxy_disconnect);
this->set_deactivator (deactivator);
}
void
TAO_ECG_UDP_Receiver::reconnect (const RtecEventChannelAdmin::SupplierQOS& pub
ACE_ENV_ARG_DECL)
{
// Obtain our object reference from the POA.
RtecEventComm::PushSupplier_var supplier_ref;
PortableServer::POA_var poa = this->_default_POA ();
CORBA::Object_var obj = poa->servant_to_reference (this ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
supplier_ref =
RtecEventComm::PushSupplier::_narrow (obj.in () ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
if (CORBA::is_nil (supplier_ref.in ()))
{
ACE_THROW (CORBA::INTERNAL ());
}
// Reconnect.
this->consumer_proxy_->connect_push_supplier (supplier_ref.in (),
pub
ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
}
void
TAO_ECG_UDP_Receiver::disconnect_push_supplier (ACE_ENV_SINGLE_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException))
{
// Prevent attempts to disconnect.
this->auto_proxy_disconnect_.disallow_command ();
this->shutdown (ACE_ENV_SINGLE_ARG_PARAMETER);
}
void
TAO_ECG_UDP_Receiver::shutdown (ACE_ENV_SINGLE_ARG_DECL_NOT_USED)
{
if (this->handler_rptr_.get ())
this->handler_rptr_->shutdown ();
TAO_ECG_Refcounted_Handler empty_handler_rptr;
this->handler_rptr_ = empty_handler_rptr;
this->consumer_proxy_ =
RtecEventChannelAdmin::ProxyPushConsumer::_nil ();
this->auto_proxy_disconnect_.execute ();
this->deactivator_.deactivate ();
this->cdr_receiver_.shutdown ();
}
// Helper class for using <cdr_receiver_>.
class TAO_ECG_Event_CDR_Decoder: public TAO_ECG_CDR_Processor
{
public:
virtual int decode (TAO_InputCDR &cdr);
RtecEventComm::EventSet events;
};
int
TAO_ECG_Event_CDR_Decoder::decode (TAO_InputCDR &cdr)
{
if (!(cdr >> this->events))
{
ACE_ERROR_RETURN ((LM_ERROR,
"Error decoding events cdr."),
-1);
}
return 0;
}
int
TAO_ECG_UDP_Receiver::handle_input (ACE_SOCK_Dgram& dgram)
{
ACE_DECLARE_NEW_CORBA_ENV;
ACE_TRY
{
// Make sure we are connected to the Event Channel before proceeding
// any further.
if (CORBA::is_nil (this->consumer_proxy_.in ()))
{
ACE_ERROR ((LM_ERROR,
"TAO_ECG_UDP_Receiver::handle_input() "
"called but the Receiver is not connected "
"to an event channel. Shutting down the Receiver."));
this->shutdown (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
return 0;
}
// Receive data.
TAO_ECG_Event_CDR_Decoder cdr_decoder;
int result = this->cdr_receiver_.handle_input (dgram, &cdr_decoder);
if (result == 0)
// No data to act on.
{
return 0;
}
if (result == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"Error receiving multicasted events."),
0);
}
this->consumer_proxy_->push (cdr_decoder.events ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
ACE_DEBUG ((LM_ERROR,
"Caught and swallowed EXCEPTION in "
"ECG_UDP_Receiver::handle_input: %s",
ACE_ANY_EXCEPTION._info ().c_str ()));
}
ACE_ENDTRY;
return 0;
}
// ****************************************************************
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template void activate<TAO_Objref_Var_T<RtecEventComm::PushSupplier> >(TAO_Objref_Var_T<RtecEventComm::PushSupplier>&, PortableServer::POA*, TAO_ServantBase*, TAO_EC_Object_Deactivator& ACE_ENV_ARG_DECL);
#elif defined(ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate void activate<TAO_Objref_Var_T<RtecEventComm::PushSupplier> >(TAO_Objref_Var_T<RtecEventComm::PushSupplier>&, PortableServer::POA*, TAO_ServantBase*, TAO_EC_Object_Deactivator& ACE_ENV_ARG_DECL)
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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