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// $Id$
#include "EC_Priority_Dispatching.h"
#include "EC_Dispatching_Task.h"
#include "EC_Event_Channel.h"
#include "EC_QOS_Info.h"
#include "orbsvcs/Event_Service_Constants.h"
#include "orbsvcs/RtecSchedulerC.h"
#include "ace/Sched_Params.h"
#if ! defined (__ACE_INLINE__)
#include "EC_Priority_Dispatching.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID(Event, EC_Priority_Dispatching, "$Id$")
TAO_EC_Priority_Dispatching::TAO_EC_Priority_Dispatching (TAO_EC_Event_Channel *ec)
: ntasks_ (0),
tasks_ (0),
scheduler_ (ec->scheduler ())
{
}
void
TAO_EC_Priority_Dispatching::activate (void)
{
if (this->tasks_ != 0)
return;
// @@ Query the scheduler to obtain this....
this->ntasks_ = ACE_Scheduler_MAX_PRIORITIES;
ACE_NEW (this->tasks_, TAO_EC_Dispatching_Task*[this->ntasks_]);
// @@ Query the scheduler to obtain the priorities!
int priority =
(ACE_Sched_Params::priority_min (ACE_SCHED_FIFO) +
ACE_Sched_Params::priority_max (ACE_SCHED_FIFO)) / 2;
priority = ACE_Sched_Params::next_priority (ACE_SCHED_FIFO, priority);
ACE_DECLARE_NEW_CORBA_ENV;
for (int i = 0; i < this->ntasks_; ++i)
{
ACE_TRY
{
RtecScheduler::Period_t period =
ACE_CU64_TO_CU32 (ACE_Scheduler_Rates[i]);
char buf[128];
ACE_OS::sprintf (buf, "Dispatching_Task-%d.us", period);
RtecScheduler::handle_t rt_info =
this->scheduler_->create (buf, ACE_TRY_ENV);
ACE_TRY_CHECK;
this->scheduler_->set (rt_info,
RtecScheduler::VERY_LOW_CRITICALITY,
0, // worst_cast_execution_time
0, // typical_cast_execution_time
0, // cached_cast_execution_time
period,
RtecScheduler::VERY_LOW_IMPORTANCE,
0, // quantum
1, // threads
RtecScheduler::OPERATION,
ACE_TRY_ENV);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
// Ignore exceptions..
}
ACE_ENDTRY;
ACE_NEW (this->tasks_[i],
TAO_EC_Dispatching_Task (&this->thread_manager_));
// @@ Query the scheduler to obtain the priority...
long flags = THR_BOUND | THR_SCHED_FIFO;
if (this->tasks_[i]->activate (flags, 1, 1, priority) == -1)
{
flags = THR_BOUND;
priority = ACE_Sched_Params::priority_min (ACE_SCHED_OTHER,
ACE_SCOPE_THREAD);
if (this->tasks_[i]->activate (flags, 1, 1, priority) == -1)
ACE_ERROR ((LM_ERROR,
"EC (%P|%t) cannot activate queue %d", i));
}
}
}
void
TAO_EC_Priority_Dispatching::shutdown (void)
{
if (this->tasks_ == 0)
return;
for (int i = 0; i < this->ntasks_; ++i)
this->tasks_[i]->putq (new TAO_EC_Shutdown_Command);
this->thread_manager_.wait ();
for (int j = 0; j < this->ntasks_; ++j)
delete this->tasks_[j];
delete[] this->tasks_;
this->tasks_ = 0;
}
void
TAO_EC_Priority_Dispatching::push (TAO_EC_ProxyPushSupplier* proxy,
const RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info,
CORBA::Environment& ACE_TRY_ENV)
{
RtecEventComm::EventSet event_copy = event;
this->push_nocopy (proxy, event_copy, qos_info, ACE_TRY_ENV);
}
void
TAO_EC_Priority_Dispatching::push_nocopy (TAO_EC_ProxyPushSupplier* proxy,
RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info,
CORBA::Environment &ACE_TRY_ENV)
{
if (this->tasks_ == 0)
this->activate ();
int i = qos_info.preemption_priority;
if (i < 0 || i >= this->ntasks_)
{
// @@ Throw something?
i = 0;
}
this->tasks_[i]->push (proxy, event, ACE_TRY_ENV);
}
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