/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 * Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
 *             Wednesday, July 9, 2003
 *
 * Purpose:     This file contains declarations which are visible
 *              only within the H5HL package. Source files outside the
 *              H5HL package should include H5HLprivate.h instead.
 */
#ifndef H5HL_PACKAGE
#error "Do not include this file outside the H5HL package!"
#endif

#ifndef _H5HLpkg_H
#define _H5HLpkg_H

/* Get package's private header */
#include "H5HLprivate.h"

/* Other private headers needed by this file */

/*****************************/
/* Package Private Variables */
/*****************************/

/* The cache subclass */
H5_DLLVAR const H5AC_class_t H5AC_LHEAP[1];

/**************************/
/* Package Private Macros */
/**************************/

#define H5HL_SIZEOF_HDR(F)						      \
    H5HL_ALIGN(H5HL_SIZEOF_MAGIC +	/*heap signature		*/    \
	       4 +			/*reserved			*/    \
	       H5F_SIZEOF_SIZE (F) +	/*data size			*/    \
	       H5F_SIZEOF_SIZE (F) +	/*free list head		*/    \
	       H5F_SIZEOF_ADDR (F))	/*data address			*/

/****************************/
/* Package Private Typedefs */
/****************************/

typedef struct H5HL_free_t {
    size_t		offset;		/*offset of free block		*/
    size_t		size;		/*size of free block		*/
    struct H5HL_free_t	*prev;		/*previous entry in free list	*/
    struct H5HL_free_t	*next;		/*next entry in free list	*/
} H5HL_free_t;

struct H5HL_t {
    H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */
                            /* first field in structure */
    haddr_t		    addr;	/*address of data		*/
    size_t		    heap_alloc;	/*size of heap on disk and in mem */
    uint8_t		   *chunk;	/*the chunk, including header	*/
    H5HL_free_t		   *freelist;	/*the free list			*/
};

/******************************/
/* Package Private Prototypes */
/******************************/

#endif


