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/* -*- C++ -*- */
// TP_Reactor.inl,v 4.2 2004/08/20 15:21:02 bala Exp
/*
ACE_INLINE
ACE_Deadlock_Free_TP_Reactor::ACE_Deadlock_Free_TP_Reactor (ACE_Sig_Handler *sh,
ACE_Timer_Queue *tq,
int mask_signals,
int s_queue,
int maxThreads,
int k)
:ACE_TP_Reactor (sh, tq, mask_signals, s_queue),
strategy_(maxThreads)
{
}
*/
namespace DA_Reactor_Init {
size_t size = 0;
DA_Strategy_Base<ACE_HANDLE>* da_strategy = 0;
int rs = 0;
ACE_Sig_Handler* sh = 0;
ACE_Timer_Queue* tq = 0;
int mask_signals = 0;
int s_queue = 0;
}
ACE_INLINE
void
ACE_Deadlock_Free_TP_Reactor_Impl::initialize (size_t size,
DA_Strategy_Base<ACE_HANDLE>* da_strategy,
int rs,
ACE_Sig_Handler *sh,
ACE_Timer_Queue *tq,
int mask_signals,
int s_queue)
{
DA_Reactor_Init::size = size;
DA_Reactor_Init::da_strategy = da_strategy;
DA_Reactor_Init::rs = rs;
DA_Reactor_Init::sh = sh;
DA_Reactor_Init::tq = tq;
DA_Reactor_Init::mask_signals = mask_signals;
DA_Reactor_Init::s_queue = s_queue;
}
ACE_INLINE
ACE_Deadlock_Free_TP_Reactor_Impl::ACE_Deadlock_Free_TP_Reactor_Impl()
:ACE_TP_Reactor (DA_Reactor_Init::size,
DA_Reactor_Init::rs,
DA_Reactor_Init::sh,
DA_Reactor_Init::tq,
DA_Reactor_Init::mask_signals,
DA_Reactor_Init::s_queue),
da_strategy_(DA_Reactor_Init::da_strategy)
{
}
ACE_INLINE
ACE_Deadlock_Free_TP_Reactor_Impl::~ACE_Deadlock_Free_TP_Reactor_Impl()
{
//delete da_strategy_;
}
ACE_INLINE void
ACE_Deadlock_Free_TP_Reactor_Impl::pre_upcall_hook (ACE_HANDLE upcall_handle)
{
da_strategy_->grant(upcall_handle);
//ACE_DEBUG ((LM_DEBUG, "%d: Protocol Entry - Before hook\n", gettid()));
//ACE_DEBUG ((LM_DEBUG, "%d: Dispatching handle %d\n", gettid(), upcall_handle));
this->filter_deadlock_potential_handles (upcall_handle);
}
ACE_INLINE void
ACE_Deadlock_Free_TP_Reactor_Impl::post_upcall_hook (ACE_HANDLE upcall_handle)
{
da_strategy_->release(upcall_handle);
//ACE_DEBUG ((LM_DEBUG, "%d: Protocol Exit - After hook\n", gettid()));
this->filter_deadlock_potential_handles (upcall_handle);
}
ACE_INLINE int
ACE_Deadlock_Free_TP_Reactor_Impl::get_annotation (ACE_Event_Handler* eh)
{
return da_strategy_->get_annotation(eh->get_handle());
}
ACE_INLINE int
ACE_Deadlock_Free_TP_Reactor_Impl::add_annotation (ACE_Event_Handler* eh, int annotation)
{
return da_strategy_->add_annotation(eh->get_handle(), annotation);
}
ACE_INLINE int
ACE_Deadlock_Free_TP_Reactor_Impl::remove_annotation (ACE_Event_Handler* eh)
{
return da_strategy_->remove_annotation(eh->get_handle());
}
ACE_INLINE int
ACE_Deadlock_Free_TP_Reactor_Impl::filter_deadlock_potential_handles(ACE_HANDLE upcall_handle)
{
ACE_MT (ACE_GUARD_RETURN (ACE_RW_Thread_Mutex, ace_mon, this->lock_, 0));
ACE_Event_Handler *eh = 0;
//ACE_HANDLE h;
/*
ACE_DEBUG ((LM_DEBUG, "%d: Before filter\n", gettid()));
ACE_DEBUG ((LM_DEBUG, "%d: read_handle = ", gettid() ));
for (ACE_Handle_Set_Iterator handle_iter_rd (this->wait_set_.rd_mask_);
(h = handle_iter_rd ()) != ACE_INVALID_HANDLE;
++handle_iter_rd)
ACE_DEBUG ((LM_DEBUG, "%d,", h));
ACE_DEBUG ((LM_DEBUG, "\n"));
ACE_DEBUG ((LM_DEBUG, "%d: suspend_handle = ", gettid() ));
for (ACE_Handle_Set_Iterator handle_iter_rd (this->suspend_set_.rd_mask_);
(h = handle_iter_rd ()) != ACE_INVALID_HANDLE;
++handle_iter_rd)
ACE_DEBUG ((LM_DEBUG, "%d,", h));
ACE_DEBUG ((LM_DEBUG, "\n"));
ACE_DEBUG ((LM_DEBUG, "%d: ready_handle = ", gettid() ));
for (ACE_Handle_Set_Iterator handle_iter_rd (this->ready_set_.rd_mask_);
(h = handle_iter_rd ()) != ACE_INVALID_HANDLE;
++handle_iter_rd)
ACE_DEBUG ((LM_DEBUG, "%d,", h));
ACE_DEBUG ((LM_DEBUG, "\n"));
ACE_DEBUG ((LM_DEBUG, "num_avail_threads = %d\n", num_avail_threads_.value()));
*/
ACE_Hash_Map_Const_Iterator_Ex<ACE_HANDLE,
int,
ACE_Hash<ACE_HANDLE>,
ACE_Equal_To<ACE_HANDLE>,
ACE_Thread_Mutex> iter = da_strategy_->get_annotations_iter();
ACE_Hash_Map_Entry<ACE_HANDLE, int>* entry = 0;
for (;iter.next(entry) != 0; iter.advance())
{
ACE_HANDLE handle = entry->key();
int annotation = entry->item();
if (handle == upcall_handle) continue;
if (da_strategy_->is_deadlock_potential(handle))
{
if (!(this->is_suspended_i(handle)))
{
this->suspend_i(handle);
}
}
else
{
if (this->is_suspended_i(handle))
{
this->resume_i(handle);
}
}
/* this is the old way, provided for comparison - PAO
for (ACE_Select_Reactor_Handler_Repository_Iterator iter (&this->handler_rep_);
iter.next (eh) != 0;
iter.advance ())
{
int annotation = get_annotation(eh);
if (eh->get_handle () == upcall_handle) continue;
if (annotation <= 0) continue;
if (annotation > this->num_avail_threads_.value () &&
!(this->is_suspended_i (eh->get_handle ())))
this->suspend_i (eh->get_handle ());
else if (annotation <= num_avail_threads_.value () &&
this->is_suspended_i (eh->get_handle ()))
this->resume_i (eh->get_handle ());
*/
// metrics commented out - PAO 4/10/07
// this->da_metrics_->number_of_handles_worked_on_[this->da_metrics_->index] =
// this->da_metrics_->number_of_handles_worked_on_[this->da_metrics_->index]+1;
// ACE_DEBUG ((LM_DEBUG, "%d: this->da_metrics_->num_handles_worked_on[%d] = %d\n",
// gettid(), this->da_metrics_->index,
// this->da_metrics_->number_of_handles_worked_on_[this->da_metrics_->index]));
//ACE_DEBUG ((LM_DEBUG, "%d: da_metrics_->index = %d\n", gettid (), (*(this->da_metrics_))->index));
}
/*
ACE_DEBUG ((LM_DEBUG, "%d: After filter\n", gettid()));
ACE_DEBUG ((LM_DEBUG, "%d: read_handle = ", gettid() ));
for (ACE_Handle_Set_Iterator handle_iter_rd (this->wait_set_.rd_mask_);
(h = handle_iter_rd ()) != ACE_INVALID_HANDLE;
++handle_iter_rd)
ACE_DEBUG ((LM_DEBUG, "%d,", h));
ACE_DEBUG ((LM_DEBUG, "\n"));
ACE_DEBUG ((LM_DEBUG, "%d: suspend_handle = ", gettid() ));
for (ACE_Handle_Set_Iterator handle_iter_rd (this->suspend_set_.rd_mask_);
(h = handle_iter_rd ()) != ACE_INVALID_HANDLE;
++handle_iter_rd)
ACE_DEBUG ((LM_DEBUG, "%d,", h));
ACE_DEBUG ((LM_DEBUG, "\n"));
*/
return 0;
}
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