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// $Id$
#include "orbsvcs/CosEvent/CEC_ProxyPullConsumer.h"
#include "orbsvcs/CosEvent/CEC_EventChannel.h"
#include "orbsvcs/CosEvent/CEC_SupplierAdmin.h"
#include "orbsvcs/CosEvent/CEC_ConsumerAdmin.h"
#include "orbsvcs/CosEvent/CEC_Reactive_Pulling_Strategy.h"
#include "orbsvcs/Time_Utilities.h"
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
#include "tao/Messaging/Messaging.h"
#endif
#include "tao/ORB_Core.h"
#include "ace/Reactor.h"
#if ! defined (__ACE_INLINE__)
#include "orbsvcs/CosEvent/CEC_Reactive_Pulling_Strategy.inl"
#endif /* __ACE_INLINE__ */
ACE_RCSID(CosEvent, CEC_Reactive_Pulling_Strategy, "$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_CEC_Reactive_Pulling_Strategy::
TAO_CEC_Reactive_Pulling_Strategy (const ACE_Time_Value &rate,
const ACE_Time_Value &relative_timeout,
TAO_CEC_EventChannel *event_channel,
CORBA::ORB_ptr orb)
: adapter_ (this),
rate_ (rate),
relative_timeout_ (relative_timeout),
event_channel_ (event_channel),
orb_ (CORBA::ORB::_duplicate (orb))
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
// Initialise timer_id_ to an invalid timer id, so that in case we don't
// schedule a timer, we don't cancel a random timer at shutdown
, timer_id_ (-1)
#endif /* TAO_HAS_CORBA_MESSAGING */
{
this->reactor_ =
this->orb_->orb_core ()->reactor ();
}
void
TAO_CEC_Reactive_Pulling_Strategy::handle_timeout (
const ACE_Time_Value &,
const void *)
{
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);
try
{
TAO_CEC_Pull_Event worker (this->event_channel_->consumer_admin (),
this->event_channel_->supplier_control ());
this->event_channel_->supplier_admin ()->for_each (&worker);
}
catch (const CORBA::Exception&)
{
// Ignore all exceptions
}
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
}
}
void
TAO_CEC_Reactive_Pulling_Strategy::activate (void)
{
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
timer_id_ = this->reactor_->schedule_timer (&this->adapter_,
0,
this->rate_,
this->rate_);
if (timer_id_ == -1)
return;
try
{
// Get the PolicyCurrent object
CORBA::Object_var tmp =
this->orb_->resolve_initial_references ("PolicyCurrent");
this->policy_current_ =
CORBA::PolicyCurrent::_narrow (tmp.in ());
// Pre-compute the policy list to the set the right timeout
// value...
// We need to convert the relative timeout into 100's of nano seconds.
TimeBase::TimeT timeout;
ORBSVCS_Time::Time_Value_to_TimeT (timeout,
this->relative_timeout_);
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);
}
catch (const CORBA::Exception&)
{
}
#endif /* TAO_HAS_CORBA_MESSAGING */
}
void
TAO_CEC_Reactive_Pulling_Strategy::shutdown (void)
{
#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
this->reactor_->cancel_timer (timer_id_);
#endif /* TAO_HAS_CORBA_MESSAGING */
this->adapter_.reactor (0);
}
// ****************************************************************
TAO_CEC_Pulling_Strategy_Adapter::TAO_CEC_Pulling_Strategy_Adapter (
TAO_CEC_Reactive_Pulling_Strategy *adaptee)
: adaptee_ (adaptee)
{
}
int
TAO_CEC_Pulling_Strategy_Adapter::handle_timeout (
const ACE_Time_Value &tv,
const void *arg)
{
this->adaptee_->handle_timeout (tv, arg);
return 0;
}
// ****************************************************************
void
TAO_CEC_Pull_Event::work (TAO_CEC_ProxyPullConsumer *consumer)
{
CORBA::Boolean has_event = 0;
CORBA::Any_var any;
try
{
any = consumer->try_pull_from_supplier (has_event);
}
catch (const CORBA::Exception&)
{
// Ignore all exceptions
return;
}
if (has_event)
{
this->consumer_admin_->push (any.in ());
}
}
TAO_END_VERSIONED_NAMESPACE_DECL
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