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// $Id$
#include "Notify_MT_Worker_Task.h"
#include "Notify_Command.h"
#include "Notify_AdminProperties.h"
#include "Notify_Buffering_Strategy.h"
#include "Notify_QoSAdmin_i.h"
#include "Notify_Extensions.h"
#include "tao/debug.h"
ACE_RCSID(Notify, Notify_MT_Worker_Task, "$Id$")
TAO_Notify_MT_Worker_Task::TAO_Notify_MT_Worker_Task (int n_threads, long flags, int force_active, long priority)
:buffering_strategy_ (0),
queue_length_ (0),
n_threads_ (n_threads),
flags_ (flags),
force_active_ (force_active),
priority_ (priority)
{
}
TAO_Notify_MT_Worker_Task::~TAO_Notify_MT_Worker_Task ()
{
delete this->buffering_strategy_;
}
int
TAO_Notify_MT_Worker_Task::init_task (
TAO_Notify_AdminProperties* const admin_properties,
TAO_Notify_QoSAdmin_i* const qos_properties)
{
// Store the admin properties...
this->queue_length_ = admin_properties->queue_length ();
// Make us an Active Object.
if (this->activate (this->flags_, this->n_threads_, this->force_active_, this->priority_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("activate failed")), -1);
// Create the dispatching strategy.
ACE_NEW_RETURN (this->buffering_strategy_,
TAO_Notify_Buffering_Strategy (
admin_properties->queue_length ()),
-1);
// Set the admin properties
this->update_admin (*admin_properties);
// Set the qos policies
this->update_qos (*qos_properties);
return 0;
}
void
TAO_Notify_MT_Worker_Task::shutdown (TAO_ENV_SINGLE_ARG_DECL_NOT_USED /*TAO_ENV_SINGLE_ARG_PARAMETER*/)
{
// Put a shutdown message in the task queue and wait here till all
// threads exit.
this->close (0);
}
int
TAO_Notify_MT_Worker_Task::close (u_long)
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) close of worker\n")));
TAO_Notify_Shutdown_Command * mb = new TAO_Notify_Shutdown_Command ();
TAO_ENV_DECLARE_NEW_ENV;
this->process_event (mb TAO_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
// We can not wait for ourselves to quit
if (this->thr_mgr ())
{
// call this->thr_mgr ()->task () in the main thread will assert ()
// fail in ACE_Thread_Manager::thread_desc_self (void) so I get
// task this way.
ACE_Thread_Descriptor *mydesc = this->thr_mgr ()->thread_descriptor (ACE_OS::thr_self ());
if (mydesc && mydesc->task () == this)
return -1;
}
return this->wait ();
}
int
TAO_Notify_MT_Worker_Task::process_event (TAO_Notify_Command *mb TAO_ENV_ARG_DECL, ACE_Time_Value *tv)
{
// Execute the buffering strategy.
this->buffering_strategy_->execute (this->msg_queue (), mb TAO_ENV_ARG_PARAMETER, tv);
ACE_CHECK_RETURN (-1);
return 0;
}
void
TAO_Notify_MT_Worker_Task::update_admin (TAO_Notify_AdminProperties& admin)
{
this->buffering_strategy_->max_queue_length (admin.max_queue_length ());
}
void
TAO_Notify_MT_Worker_Task::update_qos (TAO_Notify_QoSAdmin_i& qos_admin)
{
// Only set values on the buffering_strategy_ that have actually been
// set on the qos_admin that is passed in. This way, values on the
// buffering_strategy_ are preserved when the qos parameters are not
// set on say the event channel or the supplier proxy.
ACE_TRY_NEW_ENV
{
CosNotification::QoSProperties_var qos = qos_admin.get_qos (TAO_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
for (CORBA::ULong index = 0; index < qos->length (); ++index)
{
if (ACE_OS::strcmp (qos[index].name,
CosNotification::OrderPolicy) == 0)
{
CORBA::Short value;
qos[index].value >>= value;
this->buffering_strategy_->order_policy (value);
}
else if (ACE_OS::strcmp (qos[index].name,
CosNotification::DiscardPolicy) == 0)
{
CORBA::Short value;
qos[index].value >>= value;
this->buffering_strategy_->discard_policy (value);
}
else if (ACE_OS::strcmp (qos[index].name,
CosNotification::MaxEventsPerConsumer) == 0)
{
CORBA::Long value;
qos[index].value >>= value;
this->buffering_strategy_->max_events_per_consumer (value);
}
else if (ACE_OS::strcmp (qos[index].name,
TAO_Notify_Extensions::BlockingPolicy) == 0)
{
TimeBase::TimeT value;
qos[index].value >>= value;
this->buffering_strategy_->blocking_timeout (value);
}
}
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"EC (%P|%t) exception in update_qos");
}
ACE_ENDTRY;
}
int
TAO_Notify_MT_Worker_Task::svc (void)
{
int done = 0;
while (!done)
{
ACE_TRY_NEW_ENV
{
ACE_Message_Block *mb;
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"));
// Decrement the global event count.
(*this->queue_length_)--;
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG, "removing from queue\n"));
TAO_Notify_Command *command =
ACE_dynamic_cast (TAO_Notify_Command*, mb);
int result = 0;
if (command != 0)
{
result = command->execute (TAO_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;
}
/**************************************************************************/
TAO_Notify_Shutdown_Command::TAO_Notify_Shutdown_Command (void)
:TAO_Notify_Command (0,0)
{
}
int
TAO_Notify_Shutdown_Command::execute (TAO_ENV_SINGLE_ARG_DECL_NOT_USED /*TAO_ENV_SINGLE_ARG_PARAMETER*/)
{
return -1;
}
/**************************************************************************/
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