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// $Id$
#include "orbsvcs/Event/EC_ProxyConsumer.h"
#include "orbsvcs/Event/EC_Event_Channel_Base.h"
#include "orbsvcs/Event/EC_Supplier_Filter.h"
#include "orbsvcs/Event/EC_Supplier_Filter_Builder.h"
#include "ace/Reverse_Lock_T.h"
#if ! defined (__ACE_INLINE__)
#include "orbsvcs/Event/EC_ProxyConsumer.inl"
#endif /* __ACE_INLINE__ */
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
typedef ACE_Reverse_Lock<ACE_Lock> TAO_EC_Unlock;
TAO_EC_ProxyPushConsumer::
TAO_EC_ProxyPushConsumer (TAO_EC_Event_Channel_Base* ec)
: event_channel_ (ec),
refcount_ (1),
connected_ (false),
filter_ (0)
{
this->lock_ =
this->event_channel_->create_consumer_lock ();
this->default_POA_ =
this->event_channel_->consumer_poa ();
this->qos_.is_gateway = false;
}
TAO_EC_ProxyPushConsumer::~TAO_EC_ProxyPushConsumer (void)
{
this->event_channel_->destroy_consumer_lock (this->lock_);
this->cleanup_i ();
}
CORBA::Boolean
TAO_EC_ProxyPushConsumer::supplier_non_existent (
CORBA::Boolean_out disconnected)
{
CORBA::Object_var supplier;
{
ACE_GUARD_THROW_EX (
ACE_Lock, ace_mon, *this->lock_,
CORBA::INTERNAL ());
disconnected = 0;
if (!this->is_connected_i ())
{
disconnected = true;
return false;
}
if (CORBA::is_nil (this->supplier_.in ()))
{
return false;
}
supplier = CORBA::Object::_duplicate (this->supplier_.in ());
}
#if (TAO_HAS_MINIMUM_CORBA == 0)
return supplier->_non_existent ();
#else
return 0;
#endif /* TAO_HAS_MINIMUM_CORBA */
}
void
TAO_EC_ProxyPushConsumer::connected (TAO_EC_ProxyPushSupplier* supplier)
{
TAO_EC_ProxyPushConsumer_Guard ace_mon (this->lock_,
this->refcount_,
this->event_channel_,
this);
if (!ace_mon.locked ())
return;
ace_mon.filter->connected (supplier);
}
void
TAO_EC_ProxyPushConsumer::reconnected (TAO_EC_ProxyPushSupplier* supplier)
{
TAO_EC_ProxyPushConsumer_Guard ace_mon (this->lock_,
this->refcount_,
this->event_channel_,
this);
if (!ace_mon.locked ())
return;
ace_mon.filter->reconnected (supplier);
}
void
TAO_EC_ProxyPushConsumer::disconnected (TAO_EC_ProxyPushSupplier* supplier)
{
TAO_EC_ProxyPushConsumer_Guard ace_mon (this->lock_,
this->refcount_,
this->event_channel_,
this);
if (!ace_mon.locked ())
return;
ace_mon.filter->disconnected (supplier);
}
void
TAO_EC_ProxyPushConsumer::connected (TAO_EC_ProxyPushConsumer*)
{
}
void
TAO_EC_ProxyPushConsumer::reconnected (TAO_EC_ProxyPushConsumer*)
{
}
void
TAO_EC_ProxyPushConsumer::disconnected (TAO_EC_ProxyPushConsumer*)
{
}
void
TAO_EC_ProxyPushConsumer::shutdown_hook (void)
{
}
void
TAO_EC_ProxyPushConsumer::shutdown (void)
{
RtecEventComm::PushSupplier_var supplier;
{
ACE_GUARD_THROW_EX (
ACE_Lock, ace_mon, *this->lock_,
RtecEventChannelAdmin::EventChannel::SYNCHRONIZATION_ERROR ());
supplier = this->supplier_._retn ();
this->connected_ = false;
this->shutdown_hook ();
if (this->filter_ != 0)
{
this->filter_->shutdown ();
this->cleanup_i ();
}
}
this->deactivate ();
if (CORBA::is_nil (supplier.in ()))
return;
try
{
supplier->disconnect_push_supplier ();
}
catch (const CORBA::Exception&)
{
// Ignore exceptions, we must isolate other clients from
// failures on this one.
}
}
void
TAO_EC_ProxyPushConsumer::cleanup_i (void)
{
this->supplier_ =
RtecEventComm::PushSupplier::_nil ();
this->connected_ = false;
if (this->filter_ != 0)
{
this->filter_->unbind (this);
this->filter_->_decr_refcnt ();
this->filter_ = 0;
}
}
void
TAO_EC_ProxyPushConsumer::deactivate (void)
{
try
{
PortableServer::ObjectId id =
this->object_id ();
this->default_POA_->deactivate_object (id);
}
catch (const CORBA::Exception&)
{
// Exceptions here should not be propagated. They usually
// indicate that an object is being disconnected twice, or some
// race condition, but not a fault that the user needs to know
// about.
}
}
CORBA::ULong
TAO_EC_ProxyPushConsumer::_incr_refcnt (void)
{
ACE_GUARD_RETURN (ACE_Lock, ace_mon, *this->lock_, 0);
return this->refcount_++;
}
void
TAO_EC_ProxyPushConsumer::refcount_zero_hook (void)
{
// Use the event channel
this->event_channel_->destroy_proxy (this);
}
CORBA::ULong
TAO_EC_ProxyPushConsumer::_decr_refcnt (void)
{
{
ACE_GUARD_RETURN (ACE_Lock, ace_mon, *this->lock_, 0);
this->refcount_--;
if (this->refcount_ != 0)
return this->refcount_;
}
this->refcount_zero_hook ();
return 0;
}
// ****************************************************************
TAO_EC_ProxyPushConsumer_Guard::
TAO_EC_ProxyPushConsumer_Guard (ACE_Lock *lock,
CORBA::ULong &refcount,
TAO_EC_Event_Channel_Base *ec,
TAO_EC_ProxyPushConsumer *proxy)
: lock_ (lock),
refcount_ (refcount),
event_channel_ (ec),
proxy_ (proxy),
locked_ (false)
{
ACE_GUARD (ACE_Lock, ace_mon, *this->lock_);
// If the guard fails there is not much we can do, raising an
// exception is wrong, the client has *no* way to handle that kind
// of error. Even worse, there is no exception to raise in that
// case.
// @@ Returning something won't work either, the error should be
// logged though!
if (proxy->is_connected_i ())
{
this->filter = this->proxy_->filter_i ();
this->filter->_incr_refcnt ();
this->locked_ = true;
++this->refcount_;
}
}
TAO_EC_ProxyPushConsumer_Guard::
~TAO_EC_ProxyPushConsumer_Guard (void)
{
// This access is safe because guard objects are created on the
// stack, only one thread has access to them
if (!this->locked_)
return;
{
ACE_GUARD (ACE_Lock, ace_mon, *this->lock_);
// If the guard fails there is not much we can do, raising an
// exception is wrong, the client has *no* way to handle that kind
// of error. Even worse, there is no exception to raise in that
// case.
// @@ Returning something won't work either, the error should be
// logged though!
this->filter->_decr_refcnt ();
--this->refcount_;
if (this->refcount_ != 0)
return;
}
this->proxy_->refcount_zero_hook ();
}
TAO_END_VERSIONED_NAMESPACE_DECL
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