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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Inkscape::GC::Anchored - base class for anchored GC-managed objects
*
* Authors:
* MenTaLguY <mental@rydia.net>
*
* Copyright (C) 2004 MenTaLguY
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <typeinfo>
#include "gc-anchored.h"
#include "debug/event-tracker.h"
#include "debug/simple-event.h"
#include "debug/demangle.h"
#include "util/format.h"
namespace Inkscape {
namespace GC {
namespace {
typedef Debug::SimpleEvent<Debug::Event::REFCOUNT> RefCountEvent;
class BaseAnchorEvent : public RefCountEvent {
public:
BaseAnchorEvent(Anchored const *object, int bias,
char const *name)
: RefCountEvent(name)
{
_addProperty("base", Util::format("%p", Core::base(const_cast<Anchored *>(object))).pointer());
_addProperty("pointer", Util::format("%p", object).pointer());
_addProperty("class", Debug::demangle(typeid(*object).name()));
_addProperty("new-refcount", object->_anchored_refcount() + bias);
}
};
class AnchorEvent : public BaseAnchorEvent {
public:
AnchorEvent(Anchored const *object)
: BaseAnchorEvent(object, 1, "gc-anchor")
{}
};
class ReleaseEvent : public BaseAnchorEvent {
public:
ReleaseEvent(Anchored const *object)
: BaseAnchorEvent(object, -1, "gc-release")
{}
};
}
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);
if (!_anchor) {
_anchor = _new_anchor();
}
_anchor->refcount++;
}
void Anchored::release() const {
Debug::EventTracker<ReleaseEvent> tracker(this);
g_return_if_fail(_anchor);
if (!--_anchor->refcount) {
_free_anchor(_anchor);
_anchor = nullptr;
}
}
}
}
/*
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:fileencoding=utf-8:textwidth=99 :
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