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/*
* Inkscape::GC::Anchored - base class for anchored GC-managed objects
*
* Authors:
* MenTaLguY <mental@rydia.net>
*
* Copyright (C) 2004 MenTaLguY
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <typeinfo>
#include "gc-anchored.h"
#include "debug/event-tracker.h"
#include "debug/event.h"
#include "util/share.h"
#include "util/format.h"
namespace Inkscape {
namespace GC {
class AnchorEvent : public Debug::Event {
public:
enum Type { ANCHOR, RELEASE };
AnchorEvent(Anchored const *object, Type type)
: _base(Util::format("%p", Core::base(const_cast<Anchored *>(object)))),
_object(Util::format("%p", object)),
_class_name(Util::share_static_string(typeid(*object).name())),
_refcount(Util::format("%d", ( type == ANCHOR ? object->_anchored_refcount() + 1 : object->_anchored_refcount() - 1 ))),
_type(type)
{}
static Category category() { return REFCOUNT; }
Util::ptr_shared<char> name() const {
if ( _type == ANCHOR ) {
return Util::share_static_string("gc-anchor");
} else {
return Util::share_static_string("gc-release");
}
}
unsigned propertyCount() const { return 4; }
PropertyPair property(unsigned index) const {
switch (index) {
case 0:
return PropertyPair("base", _base);
case 1:
return PropertyPair("pointer", _object);
case 2:
return PropertyPair("class", _class_name);
case 3:
return PropertyPair("new-refcount", _refcount);
default:
return PropertyPair();
}
}
private:
Util::ptr_shared<char> _base;
Util::ptr_shared<char> _object;
Util::ptr_shared<char> _class_name;
Util::ptr_shared<char> _refcount;
Type _type;
};
Anchored::Anchor *Anchored::_new_anchor() const {
return new Anchor(this);
}
void Anchored::_free_anchor(Anchored::Anchor *anchor) const {
delete anchor;
}
void Anchored::anchor() const {
Debug::EventTracker<AnchorEvent> tracker(this, AnchorEvent::ANCHOR);
if (!_anchor) {
_anchor = _new_anchor();
}
_anchor->refcount++;
}
void Anchored::release() const {
Debug::EventTracker<AnchorEvent> tracker(this, AnchorEvent::RELEASE);
if (!--_anchor->refcount) {
_free_anchor(_anchor);
_anchor = NULL;
}
}
}
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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