/**
 * object.h: Object management.
 *
 * Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
 * Rights to this code are as documented in COPYING.
 *
 *
 * Portions of this file were derived from sources bearing the following license:
 * Copyright © 2007 William Pitcock <nenolod -at- atheme.org>
 * Rights to this code are as documented in doc/pod/license.pod.
 *
 * $Id: object.h,v 1.6 2007/09/22 14:27:26 pippijn Exp $
 */

#ifndef OBJECT_H
#define OBJECT_H

#include <util/memory.h>

/* object base class */
class object
{
  mutable int refcnt;

protected:
  object ()
  : refcnt (1)
  {
  }

  object (const object &other)
  : refcnt (1)
  {
  }

  virtual ~object () { }  
  virtual void _destroy () = 0;

public:
  int refcnt_inc ()
  {
    return ++refcnt;
  }

  int refcnt_dec ()
  {
    if (!--refcnt)
      {
	this->_destroy ();
	return 0;
      }
    else
      return refcnt;
  }
};

typedef void (*destructor_t) (void *);

struct object_t : zero_initialised
{
  char *name;
  int refcount;
  destructor_t destructor;
};

E void object_init (object_t *, const char *name, destructor_t destructor);
E void *object_ref (void *);
E void object_unref (void *);

#define asobject(x) ((object_t *) x)

#endif