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// $Id$
#include "Reactor_Per_Priority.h"
#include "tao/ORB_Core.h"
#include "tao/Resource_Factory.h"
#include "tao/Leader_Follower.h"
#include "tao/Pluggable.h"
#include "tao/debug.h"
#include "ace/Reactor.h"
#if !defined (__ACE_INLINE__)
# include "Reactor_Per_Priority.i"
#endif /* ! __ACE_INLINE__ */
ACE_RCSID(Strategies, Reactor_Per_Priority, "$Id$")
TAO_Reactor_Per_Priority::~TAO_Reactor_Per_Priority (void)
{
for (Map_Iterator i = this->map_.begin ();
i != this->map_.end ();
++i)
{
delete (*i).int_id_;
}
}
ACE_Reactor *
TAO_Reactor_Per_Priority::reactor (void)
{
ACE_DECLARE_NEW_CORBA_ENV;
TAO_ORB_Core_TSS_Resources *tss =
this->orb_core ()->get_tss_resources ();
TAO_Leader_Follower *leader_follower =
ACE_static_cast (TAO_Leader_Follower*,
tss->reactor_registry_cookie_);
if (leader_follower != 0)
return leader_follower->reactor ();
TAO_Protocols_Hooks *tph =
this->orb_core ()->get_protocols_hooks (ACE_TRY_ENV);
ACE_CHECK_RETURN (0);
CORBA::Short priority = 0;
if (tph->get_thread_priority (priority,
ACE_TRY_ENV)
== -1)
{
if (TAO_debug_level > 3)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - Reactor_Per_Priority::reactor: ")
ACE_TEXT (" cannot get priority for this thread\n")));
return 0;
}
leader_follower = this->leader_follower_i (priority);
return leader_follower->reactor ();
}
ACE_Reactor *
TAO_Reactor_Per_Priority::reactor (TAO_Acceptor *acceptor)
{
//
// Here is the explanation for going from CORBA priority to Native
// and back again:
//
// Suppose the user specifies 20,000 as the (CORBA) priority for a
// endpoint. 20,000 will be mapped to the native priority (say 10)
// when the thread is created. When the thread goes to access it's
// reactor, the native priority will be converted to the CORBA
// priority (say 19,000) which is used to look up the reactor.
// There is a loss of precision in this conversion.
//
// We use the same two step normalization here. Otherwise, we'll
// get a reactor which is different than the one used by the
// endpoint thread(s).
CORBA::Short normalized_corba_priority = 0;
CORBA::Short user_specified_corba_priority =
acceptor->priority ();
TAO_CORBA_Priority_Normalizer *corba_priority_normalizer =
this->orb_core ()->corba_priority_normalizer ();
CORBA::Boolean result =
corba_priority_normalizer->normalize (user_specified_corba_priority,
normalized_corba_priority);
if (result == 0)
return 0;
TAO_Leader_Follower *leader_follower =
this->leader_follower_i (normalized_corba_priority);
return leader_follower->reactor ();
}
TAO_Leader_Follower &
TAO_Reactor_Per_Priority::leader_follower (void)
{
ACE_DECLARE_NEW_CORBA_ENV;
TAO_ORB_Core_TSS_Resources *tss =
this->orb_core ()->get_tss_resources ();
TAO_Leader_Follower *leader_follower =
ACE_static_cast (TAO_Leader_Follower*,
tss->reactor_registry_cookie_);
if (leader_follower != 0)
return *leader_follower;
TAO_Protocols_Hooks *tph =
this->orb_core ()->get_protocols_hooks (ACE_TRY_ENV);
ACE_CHECK_RETURN (*leader_follower);
CORBA::Short priority = 0;
if (tph->get_thread_priority (priority,
ACE_TRY_ENV)
== -1)
return *leader_follower;
return *this->leader_follower_i (priority);
}
TAO_Leader_Follower &
TAO_Reactor_Per_Priority::leader_follower (TAO_Acceptor *acceptor)
{
CORBA::Short priority =
acceptor->priority ();
return *this->leader_follower_i (priority);
}
void
TAO_Reactor_Per_Priority::destroy_tss_cookie (void*)
{
// Do nothing, data is destroyed in the map...
}
TAO_Leader_Follower *
TAO_Reactor_Per_Priority::leader_follower_i (CORBA::Short priority)
{
// If the priority of the current thread is not right we return.
TAO_Leader_Follower *leader_follower = 0;
if (this->map_.find (priority, leader_follower) == -1)
{
if (TAO_debug_level > 3)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - new priority %d\n"),
priority));
// The priority is new, create an entry in the table.
ACE_NEW_RETURN (leader_follower,
TAO_Leader_Follower (this->orb_core ()),
leader_follower);
this->map_.bind (priority, leader_follower);
}
return leader_follower;
}
int
TAO_Reactor_Per_Priority::shutdown_all (void)
{
for (Map_Iterator i = this->map_.begin ();
i != this->map_.end ();
++i)
{
TAO_Leader_Follower &leader_follower =
*((*i).int_id_);
ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
ace_mon,
leader_follower.lock (),
-1);
// Wakeup all the threads waiting blocked in the event loop,
// this does not guarantee that they will all go away, but
// reduces the load on the POA....
ACE_Reactor *reactor =
leader_follower.reactor ();
reactor->wakeup_all_threads ();
// If there are some client threads running we have to wait
// until they finish, when the last one does it will shutdown
// the reactor for us. Meanwhile no new requests will be
// accepted because the POA will not process them.
if (!leader_follower.has_clients ())
{
// Wake up all waiting threads in the reactor.
reactor->end_reactor_event_loop ();
}
}
return 0;
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Map_Manager<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>;
template class ACE_Map_Iterator<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>;
template class ACE_Map_Iterator_Base<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>;
template class ACE_Map_Reverse_Iterator<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>;
template class ACE_Map_Entry<CORBA::Short,TAO_Leader_Follower*>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Map_Manager<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>
#pragma instantiate ACE_Map_Iterator<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>
#pragma instantiate ACE_Map_Iterator_Base<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>
#pragma instantiate ACE_Map_Reverse_Iterator<CORBA::Short,TAO_Leader_Follower*,TAO_SYNCH_MUTEX>
#pragma instantiate ACE_Map_Entry<CORBA::Short,TAO_Leader_Follower*>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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