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// $Id$
#include "orbsvcs/Event/EC_Dispatching_Task.h"
#include "orbsvcs/Event/EC_ProxySupplier.h"
#include "orbsvcs/Event/EC_Defaults.h"
#include "tao/ORB_Constants.h"
#include "ace/OS_NS_errno.h"
#include "ace/OS_NS_strings.h"
#if ! defined (__ACE_INLINE__)
#include "orbsvcs/Event/EC_Dispatching_Task.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID (Event,
EC_Dispatching,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_EC_Simple_Queue_Full_Action::TAO_EC_Simple_Queue_Full_Action (void)
: queue_full_action_return_value_ (WAIT_TO_EMPTY)
{
}
/// Helper function to register the default action into the service
/// configurator.
int
TAO_EC_Simple_Queue_Full_Action::init_svcs (void)
{
return ACE_Service_Config::static_svcs ()->
insert (&ace_svc_desc_TAO_EC_Simple_Queue_Full_Action);
}
int
TAO_EC_Simple_Queue_Full_Action::init (int argc, char* argv[])
{
// Here we look at the args and set an internal flag indicating whether
// the default action should be to wait for the queue to not be full
// or whether it should be to silently discard the event.
// @@ This should use the arg shifter stuff, but let's keep it simple to
// start.
do {
if (argc == 0)
break;
if (ACE_OS::strcasecmp ("wait", argv[0]) == 0)
this->queue_full_action_return_value_ = WAIT_TO_EMPTY;
else if (ACE_OS::strcasecmp ("discard", argv[0]) == 0)
this->queue_full_action_return_value_ = SILENTLY_DISCARD;
#if 0
else
;
// probably ought to print an error message here
#endif
} while (0);
return 0;
}
int
TAO_EC_Simple_Queue_Full_Action::fini (void)
{
return 0;
}
int
TAO_EC_Simple_Queue_Full_Action::queue_full_action (TAO_EC_Dispatching_Task * /*task*/,
TAO_EC_ProxyPushSupplier * /*proxy*/,
RtecEventComm::PushConsumer_ptr /*consumer*/,
RtecEventComm::EventSet& /*event*/
ACE_ENV_ARG_DECL_NOT_USED)
{
return this->queue_full_action_return_value_;
}
TAO_END_VERSIONED_NAMESPACE_DECL
ACE_STATIC_SVC_DEFINE (TAO_EC_Simple_Queue_Full_Action,
ACE_TEXT (TAO_EC_DEFAULT_QUEUE_FULL_SERVICE_OBJECT_NAME),
ACE_SVC_OBJ_T,
&ACE_SVC_NAME (TAO_EC_Simple_Queue_Full_Action),
ACE_Service_Type::DELETE_THIS | ACE_Service_Type::DELETE_OBJ,
0)
ACE_FACTORY_DEFINE (TAO_RTEvent_Serv, TAO_EC_Simple_Queue_Full_Action)
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
int
TAO_EC_Queue::is_full_i (void)
{
return static_cast<size_t> (this->cur_count_) > this->high_water_mark_;
}
// ****************************************************************
int
TAO_EC_Dispatching_Task::svc (void)
{
int done = 0;
while (!done)
{
ACE_TRY_NEW_ENV
{
ACE_Message_Block *mb = 0;
if (this->getq (mb) == -1)
if (ACE_OS::last_error () == ESHUTDOWN)
return 0;
else
ACE_ERROR ((LM_ERROR,
"EC (%P|%t) getq error in Dispatching Queue\n"));
TAO_EC_Dispatch_Command *command =
dynamic_cast<TAO_EC_Dispatch_Command*> (mb);
if (command == 0)
{
ACE_Message_Block::release (mb);
continue;
}
int result = command->execute (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
ACE_Message_Block::release (mb);
if (result == -1)
done = 1;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"EC (%P|%t) exception in dispatching queue");
}
ACE_ENDTRY;
}
return 0;
}
void
TAO_EC_Dispatching_Task::push (TAO_EC_ProxyPushSupplier *proxy,
RtecEventComm::PushConsumer_ptr consumer,
RtecEventComm::EventSet& event
ACE_ENV_ARG_DECL)
{
if (this->msg_queue()->is_full ())
{
int action =
this->queue_full_service_object_->queue_full_action (this, proxy,
consumer, event
ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
if (action == TAO_EC_Queue_Full_Service_Object::SILENTLY_DISCARD)
return;
// if action == WAIT_TO_EMPTY then we just go ahead and queue it
}
if (this->allocator_ == 0)
this->allocator_ = ACE_Allocator::instance ();
void* buf = this->allocator_->malloc (sizeof (TAO_EC_Push_Command));
if (buf == 0)
ACE_THROW (CORBA::NO_MEMORY (TAO::VMCID,
CORBA::COMPLETED_NO));
ACE_Message_Block *mb =
new (buf) TAO_EC_Push_Command (proxy,
consumer,
event,
this->data_block_.duplicate (),
this->allocator_);
this->putq (mb);
}
// ****************************************************************
TAO_EC_Dispatch_Command::~TAO_EC_Dispatch_Command (void)
{
}
// ****************************************************************
int
TAO_EC_Shutdown_Task_Command::execute (ACE_ENV_SINGLE_ARG_DECL_NOT_USED)
{
return -1;
}
// ****************************************************************
TAO_EC_Push_Command::~TAO_EC_Push_Command (void)
{
this->proxy_->_decr_refcnt ();
}
int
TAO_EC_Push_Command::execute (ACE_ENV_SINGLE_ARG_DECL)
{
this->proxy_->push_to_consumer (this->consumer_.in (),
this->event_
ACE_ENV_ARG_PARAMETER);
return 0;
}
TAO_END_VERSIONED_NAMESPACE_DECL
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