/*
 * object.C: 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:
 * Rights to this code are documented in doc/pod/license.pod.
 * Copyright © 2005-2007 Atheme Project (http://www.atheme.org)
 */

static char const rcsid[] = "$Id: object.C,v 1.5 2007/09/16 18:54:45 pippijn Exp $";

#include "atheme.h"

/*
 * object_init
 *
 * Populates the object manager part of an object.
 *
 * Inputs:
 *      - pointer to object manager area
 *      - (optional) name of object
 *      - (optional) custom destructor
 *
 * Outputs:
 *      - none
 *
 * Side Effects:
 *      - none
 */
void
object_init (object_t * obj, const char *name, destructor_t des)
{
  return_if_fail (obj != NULL);

  if (name != NULL)
    obj->name = sstrdup (name);
  else
    obj->name = sstrdup ("");

  obj->destructor = des;
  obj->refcount = 1;
}

/*
 * object_ref
 *
 * Increment the reference counter on an object.
 *
 * Inputs:
 *      - the object to refcount
 *
 * Outputs:
 *      - none
 *
 * Side Effects:
 *      - none
 */
void *
object_ref (void *object)
{
  return_val_if_fail (object != NULL, NULL);

  asobject (object)->refcount++;

  return object;
}

/*
 * object_unref
 *
 * Decrement the reference counter on an object.
 *
 * Inputs:
 *      - the object to refcount
 *
 * Outputs:
 *      - none
 *
 * Side Effects:
 *      - if the refcount is 0, the object is destroyed.
 */
void
object_unref (void *object)
{
  object_t *obj;

  return_if_fail (object != NULL);
  obj = asobject (object);

  obj->refcount--;

  if (obj->refcount <= 0)
    {
      sfree (obj->name);

      if (obj->destructor != NULL)
	obj->destructor (obj);
      else
	sfree (obj);
    }
}