mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-15 11:22:34 +03:00
154 lines
3.6 KiB
C++
Executable File
154 lines
3.6 KiB
C++
Executable File
// -*- c++ -*-
|
|
/*
|
|
* Copyright 1999 Karl Nelson <kenelson@ece.ucdavis.edu>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the Free
|
|
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#ifndef SIGCXX_OBJECT_H
|
|
#define SIGCXX_OBJECT_H
|
|
#include <sigc++config.h>
|
|
#include <sigc++/scope.h>
|
|
|
|
|
|
#ifdef SIGC_CXX_NAMESPACES
|
|
namespace SigC
|
|
{
|
|
#endif
|
|
|
|
extern int sigc_micro_version;
|
|
extern int sigc_minor_version;
|
|
extern int sigc_major_version;
|
|
|
|
class Invalid_;
|
|
class LIBSIGC_API ObjectReferenced
|
|
{
|
|
friend class Reference;
|
|
friend class Scope;
|
|
friend class Invalid_;
|
|
|
|
#ifdef SIGC_CXX_FRIEND_TEMPLATES
|
|
template <class T>
|
|
friend T* manage(T*);
|
|
#endif
|
|
|
|
protected:
|
|
// count of current references
|
|
unsigned int obj_count_ :24;
|
|
|
|
// indicates object generated through an interface that marks dynamic
|
|
unsigned int obj_dynamic_ :1;
|
|
|
|
// indicates the pointed to scope is the owner
|
|
unsigned int obj_owned_ :1;
|
|
|
|
// indicates object not will delete when count reachs zero
|
|
unsigned int obj_floating_ :1;
|
|
|
|
// indicates the owned scope is surrendering ownership
|
|
unsigned int obj_transfer_ :1;
|
|
|
|
// indicates the object is doing a list clean up
|
|
unsigned int obj_invalid_ :1;
|
|
|
|
// indicates the object been destroyed
|
|
unsigned int obj_destroyed_ :1;
|
|
|
|
// indicates there is a weak reference
|
|
unsigned int obj_weak_ :1;
|
|
|
|
|
|
/*************************************************************/
|
|
#ifdef SIGC_CXX_FRIEND_TEMPLATES
|
|
protected:
|
|
#else
|
|
public:
|
|
#endif
|
|
// For the controller and scope
|
|
virtual void set_dynamic();
|
|
inline void set_sink() {obj_floating_=0;}
|
|
|
|
protected:
|
|
|
|
inline void register_ref(Reference *)
|
|
{
|
|
if (obj_transfer_)
|
|
{
|
|
obj_transfer_=0;
|
|
obj_owned_=0;
|
|
}
|
|
}
|
|
|
|
public:
|
|
virtual void reference();
|
|
virtual void unreference();
|
|
|
|
inline bool is_dynamic() {return obj_dynamic_;}
|
|
inline bool is_floating() {return obj_floating_;}
|
|
|
|
ObjectReferenced();
|
|
virtual ~ObjectReferenced();
|
|
};
|
|
|
|
|
|
class LIBSIGC_API ObjectScoped :public ObjectReferenced
|
|
{
|
|
friend class Scope;
|
|
typedef ScopeList List_;
|
|
|
|
private:
|
|
mutable List_ list_;
|
|
|
|
// interface for scopes
|
|
void register_scope(Scope *scope,const Scope *parent=0);
|
|
void unregister_scope(Scope *scope);
|
|
|
|
protected:
|
|
// This sets a very weak reference which is removed at next invalid
|
|
void set_weak();
|
|
|
|
public:
|
|
void register_data(ScopeNode* data);
|
|
|
|
// inform connections that object wishs to delete
|
|
void invalid(bool destroy=0);
|
|
|
|
ObjectScoped();
|
|
virtual ~ObjectScoped();
|
|
};
|
|
|
|
|
|
// There can only be one Scope_Object per any object
|
|
class LIBSIGC_API Object: public virtual ObjectScoped
|
|
{
|
|
public:
|
|
Object() {}
|
|
virtual ~Object();
|
|
};
|
|
|
|
// mark this a managable object
|
|
template <class T>
|
|
inline T* manage(T* t)
|
|
{
|
|
if (t) t->set_dynamic();
|
|
return t;
|
|
}
|
|
|
|
|
|
#ifdef SIGC_CXX_NAMESPACES
|
|
} // namespace
|
|
#endif
|
|
|
|
#endif
|