/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
 * access to either file, you may request a copy from help@hdfgroup.org.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
 * Reference counting buffer algorithms.
 *
 * These are used for various internal buffers which are shared.
 *
 * The module used to be H5RC, but changed to H5UC because of 
 * conflicting requirement for the use of H5RC.
 *
 */
#include "H5Eprivate.h"     /* Error handling           */
#include "H5FLprivate.h"    /* Free lists                           */
#include "H5UCprivate.h"        /* Reference-counted buffers            */
/* Private typedefs & structs */
/* Declare a free list to manage the H5UC_t struct */
H5FL_DEFINE_STATIC(H5UC_t);
/*--------------------------------------------------------------------------
 NAME
    H5UC_create
 PURPOSE
    Create a reference counted object
 USAGE
    H5UC_t *H5UC_create(o,free)
        const void *o;          IN: Object to initialize ref-counted object with
        H5UC_free_func_t free;  IN: Function to call when ref-count drop to zero
 RETURNS
    Returns a pointer to a new ref-counted object on success, NULL on failure.
 DESCRIPTION
    Create a reference counted object.  The object is not duplicated, it is
    assumed to be owned by the reference counted object now and will be freed