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#include "orbsvcs/Notify/Refcountable.h"
#include "tao/debug.h"
#include "orbsvcs/Log_Macros.h"
#include "ace/Guard_T.h"
#if (TAO_NOTIFY_REFCOUNT_DIAGNOSTICS != 0)
#include <map>
#include <string>
#include <typeinfo.h>
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class TAO_Notify_Tracker
*
* @brief A debugging tool to track the creation of TAO_Notify_Refcountable objects.
*
* Usage:
* Set USE_TAO_NOTIFY_TRACKER defined above to 1
* At any significant point to check object usage
* TAO_Notify_Tracker::get_instance().dump();
*/
class TAO_Notify_Tracker
{
public:
struct Entry
{
TAO_Notify_Refcountable* obj;
std::string class_name;
};
static TAO_Notify_Tracker& get_instance();
void add( TAO_Notify_Refcountable* p);
void remove( const TAO_Notify_Refcountable* p);
Entry find( const TAO_Notify_Refcountable* p) const;
void dump( const char* title = 0 );
private:
TAO_Notify_Tracker();
~TAO_Notify_Tracker();
friend class std::auto_ptr< TAO_Notify_Tracker >;
static std::auto_ptr< TAO_Notify_Tracker > s_instance;
mutable TAO_SYNCH_MUTEX lock_;
typedef std::map<int, Entry> EntityMap;
EntityMap map_;
int id_counter_;
int last_dump_count_;
};
void
TAO_Notify_Refcountable::diagnostic_dump( const char* title )
{
TAO_Notify_Tracker::get_instance().dump( title );
}
#endif /* TAO_NOTIFY_REFCOUNT_DIAGNOSTICS */
TAO_Notify_Refcountable::TAO_Notify_Refcountable ()
{
}
TAO_Notify_Refcountable::~TAO_Notify_Refcountable ()
{
#if (TAO_NOTIFY_REFCOUNT_DIAGNOSTICS != 0)
TAO_Notify_Tracker::Entry e = TAO_Notify_Tracker::get_instance().find( this );
if ( e.obj != 0 )
{
ORBSVCS_DEBUG ((LM_DEBUG,"object:%x %s(%d) with refcount:%d destroyed incorrectly.\n",
e.obj, e.class_name, e.obj->ref_id_, e.obj->refcount_.value() ));
if ( e.obj != this || e.obj->ref_id_ != this->ref_id_ )
{
ORBSVCS_DEBUG ((LM_DEBUG, " with an ID mismatch %x->%d != %x->%d!\n",
this, ref_id_, e.obj, e.obj->ref_id_));
}
TAO_Notify_Tracker::get_instance().remove( this );
}
#endif
CORBA::ULong refcount = this->refcount_.value();
ACE_ASSERT( refcount == 0 );
ACE_UNUSED_ARG(refcount);
}
CORBA::ULong
TAO_Notify_Refcountable::_incr_refcnt ()
{
CORBA::Long refcount = ++this->refcount_;
if (TAO_debug_level > 1 )
{
ORBSVCS_DEBUG ((LM_DEBUG,"object:%x incr refcount = %d\n", this, refcount ));
}
#if (TAO_NOTIFY_REFCOUNT_DIAGNOSTICS != 0)
// Stack-instantiated-non-servants should never have _incr_refcnt called.
// We do not care about stack-instances. Stack-instantiated servants break
// the tracker.
if ( refcount == 1 )
{
TAO_Notify_Tracker::get_instance().add( this );
}
#endif
return refcount;
}
CORBA::ULong
TAO_Notify_Refcountable::_decr_refcnt ()
{
CORBA::Long refcount = --this->refcount_;
if (TAO_debug_level > 1 )
{
ORBSVCS_DEBUG ((LM_DEBUG,"object:%x decr refcount = %d\n", this, refcount ));
}
ACE_ASSERT(refcount >= 0);
if (refcount == 0)
{
#if ( USE_TAO_NOTIFY_TRACKER != 0 )
TAO_Notify_Tracker::get_instance().remove( this );
#endif
this->release ();
}
return refcount;
}
#if (TAO_NOTIFY_REFCOUNT_DIAGNOSTICS != 0)
std::auto_ptr< TAO_Notify_Tracker > TAO_Notify_Tracker::s_instance;
TAO_Notify_Tracker::TAO_Notify_Tracker()
: id_counter_(0)
, last_dump_count_(0)
{
}
TAO_Notify_Tracker::~TAO_Notify_Tracker()
{
dump( "destruction" );
}
void
TAO_Notify_Tracker::dump( const char* title )
{
ACE_GUARD (TAO_SYNCH_MUTEX, ace_mon, this->lock_);
ORBSVCS_DEBUG ((LM_DEBUG,"\nTAO_Notify_Tracker: %s\n", (title ? title : "dump")));
EntityMap::const_iterator iter( map_.begin() );
while ( iter != map_.end() )
{
ORBSVCS_DEBUG ((LM_DEBUG,"object:%x %s(%d) with refcount:%d.\n",
iter->second.obj, iter->second.class_name, iter->first, iter->second.obj->refcount_.value() ));
iter++;
}
EntityMap::size_type current_count = map_.size();
int diff = ( current_count - last_dump_count_ );
ORBSVCS_DEBUG ((LM_DEBUG,"Count: %u\nDifference: %+d\n", current_count, diff ));
last_dump_count_ = current_count;
}
TAO_Notify_Tracker&
TAO_Notify_Tracker::get_instance()
{
if ( s_instance.get() == 0 )
{
s_instance.reset( new TAO_Notify_Tracker );
}
return *s_instance;
}
void
TAO_Notify_Tracker::add( TAO_Notify_Refcountable* p )
{
if ( p == 0 ) return;
ACE_GUARD (TAO_SYNCH_MUTEX, ace_mon, this->lock_);
int id = ++id_counter_;
Entry e = { p, typeid(*p).name() };
std::pair< EntityMap::iterator, bool > result =
map_.insert( std::make_pair( id, e ) );
EntityMap::iterator& it = result.first;
if ( result.second == false )
{
ORBSVCS_DEBUG ((LM_DEBUG,"object:%x %s(%d) added twice.\n",
it->second.obj, it->second.class_name.c_str(), it->first ));
}
else
{
p->ref_id_ = id;
}
}
void
TAO_Notify_Tracker::remove( const TAO_Notify_Refcountable* p )
{
if ( p == 0 ) return;
ACE_GUARD (TAO_SYNCH_MUTEX, ace_mon, this->lock_);
int ref_id = p->ref_id_;
EntityMap::iterator iter( map_.find( ref_id ) );
if ( iter == map_.end() )
{
const char* class_name = typeid(*iter->second.obj).name();
ORBSVCS_DEBUG ((LM_DEBUG,"object:%x %s(%d) not found.\n",
p, class_name, ref_id ));
}
else
{
map_.erase( iter );
}
}
TAO_Notify_Tracker::Entry
TAO_Notify_Tracker::find( const TAO_Notify_Refcountable* p) const
{
Entry e = { 0, "" };
if ( p == 0 ) return e;
ACE_GUARD (TAO_SYNCH_MUTEX, ace_mon, this->lock_);
int ref_id = p->ref_id_;
EntityMap::const_iterator iter( map_.find( ref_id ) );
if ( iter != map_.end() )
{
return iter->second;
}
return e;
}
TAO_END_VERSIONED_NAMESPACE_DECL
#endif /* TAO_NOTIFY_REFCOUNT_DIAGNOSTICS */
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