if(NULL == (child_iblock = (H5HF_indirect_t *) H5AC_protect(f, H5AC_FHEAP_IBLOCK, child_iblock_addr, NULL, H5AC__READ_ONLY_FLAG)))
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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 COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
 *
 * Created:     H5HFcache.c
 *          Feb 24 2006
 *          Quincey Koziol <koziol@ncsa.uiuc.edu>
 *
 * Purpose:     Implement fractal heap metadata cache methods.
 *
 *-------------------------------------------------------------------------
 */
/****************/
/* Module Setup */
/****************/
#include "H5HFmodule.h"         /* This source code file is part of the H5HF module */
/***********/
/* Headers */
/***********/
#include "H5private.h"      /* Generic Functions            */
#include "H5ACprivate.h"    /* Metadata cache           */
#include "H5Eprivate.h"     /* Error handling           */
#include "H5HFpkg.h"        /* Fractal heaps            */
#include "H5MFprivate.h"    /* File memory management       */
#include "H5MMprivate.h"    /* Memory management            */
#include "H5VMprivate.h"    /* Vectors and arrays           */
#include "H5WBprivate.h"        /* Wrapped Buffers                      */
/****************/
/* Local Macros */
/****************/
/* Fractal heap format version #'s */
#define H5HF_HDR_VERSION        0               /* Header */
#define H5HF_DBLOCK_VERSION     0               /* Direct block */