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// $Id$
#include "orbsvcs/Notify/ThreadPool_Task.h"
#include "orbsvcs/Notify/Properties.h"
#include "orbsvcs/Notify/Timer_Queue.h"
#include "orbsvcs/Notify/Buffering_Strategy.h"
#include "tao/debug.h"
#include "tao/ORB_Core.h"
#include "ace/OS_NS_errno.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_Notify_ThreadPool_Task::TAO_Notify_ThreadPool_Task (void)
: shutdown_ (false)
{
}
TAO_Notify_ThreadPool_Task::~TAO_Notify_ThreadPool_Task ()
{
}
int
TAO_Notify_ThreadPool_Task::init (int argc, ACE_TCHAR **argv)
{
return this->ACE_Task<ACE_NULL_SYNCH>::init (argc, argv);
}
TAO_Notify_Timer*
TAO_Notify_ThreadPool_Task::timer (void)
{
return this->timer_.get();
}
TAO_Notify_Buffering_Strategy*
TAO_Notify_ThreadPool_Task::buffering_strategy (void)
{
return this->buffering_strategy_.get ();
}
void
TAO_Notify_ThreadPool_Task::init (const NotifyExt::ThreadPoolParams& tp_params,
const TAO_Notify_AdminProperties::Ptr& admin_properties)
{
ACE_ASSERT (this->timer_.get() == 0);
TAO_Notify_Timer_Queue* timer = 0;
ACE_NEW_THROW_EX (timer,
TAO_Notify_Timer_Queue (),
CORBA::NO_MEMORY ());
this->timer_.reset (timer);
TAO_Notify_Buffering_Strategy* buffering_strategy = 0;
ACE_NEW_THROW_EX (buffering_strategy,
TAO_Notify_Buffering_Strategy (*msg_queue (), admin_properties),
CORBA::NO_MEMORY ());
this->buffering_strategy_.reset (buffering_strategy);
long flags = THR_NEW_LWP | THR_DETACHED;
CORBA::ORB_var orb =
TAO_Notify_PROPERTIES::instance()->orb ();
flags |=
orb->orb_core ()->orb_params ()->thread_creation_flags ();
// Guards the thread for auto-deletion; paired with close.
// This is done in the originating thread before the spawn to
// avoid any race conditions.
for ( CORBA::ULong i = 0; i < tp_params.static_threads; ++i )
{
this->_incr_refcnt();
}
// Become an active object.
if (this->ACE_Task <ACE_NULL_SYNCH>::activate (flags,
tp_params.static_threads,
0,
ACE_THR_PRI_OTHER_DEF) == -1)
{
// Undo the ref counts on error
for ( CORBA::ULong i = 0; i < tp_params.static_threads; ++i )
{
this->_decr_refcnt();
}
if (ACE_OS::last_error () == EPERM)
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) Insufficient privilege.\n")));
else if (ACE_OS::last_error () == EAGAIN)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) task activation at priority %d failed %p\n"),
tp_params.default_priority, "activate"));
throw CORBA::NO_RESOURCES ();
}
throw CORBA::BAD_PARAM ();
}
}
void
TAO_Notify_ThreadPool_Task::execute (TAO_Notify_Method_Request& method_request)
{
if (!shutdown_)
{
TAO_Notify_Method_Request_Queueable* request_copy = method_request.copy ();
if (this->buffering_strategy_->enqueue (request_copy) == -1)
{
ACE_Message_Block::release (request_copy);
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG, "NS_ThreadPool_Task (%P|%t) - "
"failed to enqueue\n"));
}
}
}
int
TAO_Notify_ThreadPool_Task::svc (void)
{
TAO_Notify_Method_Request_Queueable* method_request = 0;
while (!shutdown_)
{
try
{
ACE_Time_Value* dequeue_blocking_time = 0;
ACE_Time_Value earliest_time;
if (!this->timer_->impl().is_empty ())
{
earliest_time = this->timer_->impl().earliest_time ();
dequeue_blocking_time = &earliest_time;
}
// Dequeue 1 item
int const result = buffering_strategy_->dequeue (method_request, dequeue_blocking_time);
if (result > 0)
{
method_request->execute ();
ACE_Message_Block::release (method_request);
}
else if (errno == ETIME)
{
this->timer_->impl ().expire ();
}
else
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG, "(%P|%t)ThreadPool_Task dequeue failed\n"));
}
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (
"ThreadPool_Task (%P|%t) exception in method request\n");
}
} /* while */
return 0;
}
void
TAO_Notify_ThreadPool_Task::shutdown (void)
{
if (this->shutdown_)
{
return;
}
this->shutdown_ = true;
this->buffering_strategy_->shutdown ();
}
void
TAO_Notify_ThreadPool_Task::release (void)
{
delete this;
}
int
TAO_Notify_ThreadPool_Task::close (u_long)
{
// _incr_refcnt() for each spawned thread in init()
this->_decr_refcnt();
return 0;
}
void
TAO_Notify_ThreadPool_Task::update_qos_properties (const TAO_Notify_QoSProperties& qos_properties)
{
this->buffering_strategy_->update_qos_properties (qos_properties);
}
TAO_END_VERSIONED_NAMESPACE_DECL
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