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#include "orbsvcs/Event/EC_ConsumerAdmin.h"
#include "orbsvcs/Event/EC_Reactive_ConsumerControl.h"
#include "orbsvcs/Event/EC_Event_Channel_Base.h"
#include "orbsvcs/Event/EC_ProxySupplier.h"
#include "orbsvcs/Event/EC_ProxyConsumer.h" // @@ MSVC 6 bug
#include "tao/Messaging/Messaging.h"
#include "tao/ORB_Core.h"
#include "ace/Reactor.h"
#if ! defined (__ACE_INLINE__)
#include "orbsvcs/Event/EC_Reactive_ConsumerControl.inl"
#endif /* __ACE_INLINE__ */
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_EC_Reactive_ConsumerControl::
TAO_EC_Reactive_ConsumerControl (const ACE_Time_Value &rate,
const ACE_Time_Value &timeout,
TAO_EC_Event_Channel_Base *ec,
CORBA::ORB_ptr orb)
: rate_ (rate),
timeout_ (timeout),
adapter_ (this),
event_channel_ (ec),
orb_ (CORBA::ORB::_duplicate (orb))
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
, timer_id_ (-1)
#endif /* TAO_HAS_CORBA_MESSAGING != 0*/
{
this->reactor_ =
this->orb_->orb_core ()->reactor ();
}
TAO_EC_Reactive_ConsumerControl::~TAO_EC_Reactive_ConsumerControl ()
{
}
void
TAO_EC_Reactive_ConsumerControl::query_consumers ()
{
TAO_EC_Ping_Consumer worker (this);
this->event_channel_->for_each_consumer (&worker);
}
void
TAO_EC_Reactive_ConsumerControl::handle_timeout (
const ACE_Time_Value &,
const void *)
{
// NOTE, setting RELATIVE_RT_TIMEOUT_POLICY for the duration of
// query_consumers () below has greater impact than desired. For
// example, while we are pinging consumers here, a nested upcall,
// which requires making remote calls may come into the ORB. Those
// remote calls will be carried out with with
// RELATIVE_RT_TIMEOUT_POLICY set here in effect.
// @@ TODO: should use Guard to set and reset policies.
try
{
// Query the state of the Current object *before* we initiate
// the iteration...
CORBA::PolicyTypeSeq types;
CORBA::PolicyList_var policies =
this->policy_current_->get_policy_overrides (types);
// Change the timeout
this->policy_current_->set_policy_overrides (this->policy_list_,
CORBA::ADD_OVERRIDE);
// Query the state of the consumers...
this->query_consumers ();
this->policy_current_->set_policy_overrides (policies.in (),
CORBA::SET_OVERRIDE);
for (CORBA::ULong i = 0; i != policies->length (); ++i)
{
policies[i]->destroy ();
}
}
catch (const CORBA::Exception&)
{
// Ignore all exceptions
}
}
int
TAO_EC_Reactive_ConsumerControl::activate ()
{
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
try
{
// Get the PolicyCurrent object
CORBA::Object_var tmp =
this->orb_->resolve_initial_references ("PolicyCurrent");
this->policy_current_ =
CORBA::PolicyCurrent::_narrow (tmp.in ());
// Timeout for polling state (default = 10 msec)
TimeBase::TimeT timeout = timeout_.usec() * 10;
CORBA::Any any;
any <<= timeout;
this->policy_list_.length (1);
this->policy_list_[0] =
this->orb_->create_policy (
Messaging::RELATIVE_RT_TIMEOUT_POLICY_TYPE, any);
// Only schedule the timer, when the rate is not zero
if (this->rate_ != ACE_Time_Value::zero)
{
// Schedule the timer after these policies has been set, because the
// handle_timeout uses these policies, if done in front, the channel
// can crash when the timeout expires before initiazation is ready.
timer_id_ = this->reactor_->schedule_timer (&this->adapter_,
nullptr,
this->rate_,
this->rate_);
if (timer_id_ == -1)
return -1;
}
}
catch (const CORBA::Exception&)
{
return -1;
}
#endif /* TAO_HAS_CORBA_MESSAGING */
return 0;
}
int
TAO_EC_Reactive_ConsumerControl::shutdown ()
{
int r = 0;
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
r = this->reactor_->cancel_timer (timer_id_);
#endif /* TAO_HAS_CORBA_MESSAGING */
this->adapter_.reactor (nullptr);
return r;
}
void
TAO_EC_Reactive_ConsumerControl::consumer_not_exist (
TAO_EC_ProxyPushSupplier *proxy)
{
try
{
//ORBSVCS_DEBUG ((LM_DEBUG,
// "EC_Reactive_ConsumerControl(%P|%t) - "
// "Consumer %x does not exists\n", long(proxy)));
proxy->disconnect_push_supplier ();
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Reactive_ConsumerControl::consumer_not_exist");
// Ignore all exceptions..
}
}
void
TAO_EC_Reactive_ConsumerControl::system_exception (
TAO_EC_ProxyPushSupplier *proxy,
CORBA::SystemException & /* exception */)
{
try
{
// The current implementation is very strict, and kicks out a
// client on the first system exception. We may
// want to be more lenient in the future, for example,
// this is TAO's minor code for a failed connection.
//
// if (CORBA::TRANSIENT::_narrow (&exception) != 0
// && exception->minor () == 0x54410085)
// return;
// Anything else is serious, including timeouts...
proxy->disconnect_push_supplier ();
}
catch (const CORBA::Exception&)
{
// Ignore all exceptions..
}
}
// ****************************************************************
TAO_EC_ConsumerControl_Adapter::TAO_EC_ConsumerControl_Adapter (
TAO_EC_Reactive_ConsumerControl *adaptee)
: adaptee_ (adaptee)
{
}
int
TAO_EC_ConsumerControl_Adapter::handle_timeout (
const ACE_Time_Value &tv,
const void *arg)
{
this->adaptee_->handle_timeout (tv, arg);
return 0;
}
// ****************************************************************
void
TAO_EC_Ping_Consumer::work (TAO_EC_ProxyPushSupplier *supplier)
{
try
{
CORBA::Boolean disconnected;
CORBA::Boolean non_existent =
supplier->consumer_non_existent (disconnected);
if (non_existent && !disconnected)
{
this->control_->consumer_not_exist (supplier);
}
}
catch (const CORBA::OBJECT_NOT_EXIST&)
{
this->control_->consumer_not_exist (supplier);
}
catch (const CORBA::TRANSIENT&)
{
// This is TAO's minor code for a failed connection, we may
// want to be more lenient in the future..
// if (transient.minor () == 0x54410085)
this->control_->consumer_not_exist (supplier);
}
catch (const CORBA::Exception&)
{
// Ignore all exceptions
}
}
TAO_END_VERSIONED_NAMESPACE_DECL
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