diff options
Diffstat (limited to 'TAO/orbsvcs/orbsvcs/Event/ECG_Reactive_ConsumerEC_Control.cpp')
| -rw-r--r-- | TAO/orbsvcs/orbsvcs/Event/ECG_Reactive_ConsumerEC_Control.cpp | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/TAO/orbsvcs/orbsvcs/Event/ECG_Reactive_ConsumerEC_Control.cpp b/TAO/orbsvcs/orbsvcs/Event/ECG_Reactive_ConsumerEC_Control.cpp new file mode 100644 index 00000000000..1a3c54d765e --- /dev/null +++ b/TAO/orbsvcs/orbsvcs/Event/ECG_Reactive_ConsumerEC_Control.cpp @@ -0,0 +1,224 @@ +// $Id$ + +#include "orbsvcs/Event/EC_Gateway_IIOP.h" +#include "orbsvcs/Event/ECG_Reactive_ConsumerEC_Control.h" +#include "tao/Messaging/Messaging.h" +#include "tao/ORB_Core.h" + +#include "ace/Reactor.h" + +ACE_RCSID(Event, ECG_Reactive_ConsumerEventChannelControl, "$Id$") + +TAO_BEGIN_VERSIONED_NAMESPACE_DECL + +TAO_ECG_Reactive_ConsumerEC_Control:: + TAO_ECG_Reactive_ConsumerEC_Control (const ACE_Time_Value &rate, + const ACE_Time_Value &timeout, + TAO_EC_Gateway_IIOP* gateway, + CORBA::ORB_ptr orb) + : rate_ (rate), + timeout_ (timeout), + adapter_ (this), + gateway_ (gateway), + 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_ECG_Reactive_ConsumerEC_Control::~TAO_ECG_Reactive_ConsumerEC_Control (void) +{ +} + +void +TAO_ECG_Reactive_ConsumerEC_Control::query_eventchannel () +{ + try + { + CORBA::Boolean disconnected; + CORBA::Boolean non_existent = + gateway_->consumer_ec_non_existent (disconnected); + if (non_existent && !disconnected) + { + this->event_channel_not_exist (gateway_); + } + } + catch (const CORBA::OBJECT_NOT_EXIST&) + { + this->event_channel_not_exist (gateway_); + } + 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->event_channel_not_exist (gateway_); + } + catch (const CORBA::Exception&) + { + // Ignore all exceptions + } +} + +void +TAO_ECG_Reactive_ConsumerEC_Control::handle_timeout ( + const ACE_Time_Value &, + const void *) +{ + // NOTE, setting RELATIVE_RT_TIMEOUT_POLICY for the duration of + // query_eventchannel () below has greater impact than desired. For + // example, while we are pinging ec 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_eventchannel (); + + 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_ECG_Reactive_ConsumerEC_Control::activate (void) +{ +#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_, + 0, + 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_ECG_Reactive_ConsumerEC_Control::shutdown (void) +{ + 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 (0); + return r; +} + +void +TAO_ECG_Reactive_ConsumerEC_Control::event_channel_not_exist ( + TAO_EC_Gateway_IIOP* gateway) +{ + try + { + ACE_DEBUG ((LM_DEBUG, + "EC_Reactive_ConsumerControl(%P|%t) - " + "channel %x does not exists\n")); + gateway->cleanup_consumer_ec (); + + gateway->cleanup_consumer_proxies (); + + } + catch (const CORBA::Exception& ex) + { + ex._tao_print_exception ( + "TAO_EC_Reactive_ConsumerControl::event_channel_not_exist"); + // Ignore all exceptions.. + } +} + +void +TAO_ECG_Reactive_ConsumerEC_Control::system_exception ( + TAO_EC_Gateway_IIOP* gateway, + CORBA::SystemException & /* exception */) +{ + try + { + gateway->cleanup_consumer_ec (); + + gateway->cleanup_consumer_proxies (); + + } + catch (const CORBA::Exception&) + { + // Ignore all exceptions.. + } +} + +// **************************************************************** + +TAO_ECG_Reactive_ConsumerEC_Control_Adapter::TAO_ECG_Reactive_ConsumerEC_Control_Adapter ( + TAO_ECG_Reactive_ConsumerEC_Control *adaptee) + : adaptee_ (adaptee) +{ +} + +int +TAO_ECG_Reactive_ConsumerEC_Control_Adapter::handle_timeout ( + const ACE_Time_Value &tv, + const void *arg) +{ + this->adaptee_->handle_timeout (tv, arg); + return 0; +} + +TAO_END_VERSIONED_NAMESPACE_DECL |