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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 */
#include "H5FLprivate.h" /* Free lists */
/*****************************/
/* Package Private Variables */
/*****************************/
/* The local heap prefix cache subclass */
H5_DLLVAR const H5AC_class_t H5AC_LHEAP_PRFX[1];
/* The local heap data block cache subclass */
H5_DLLVAR const H5AC_class_t H5AC_LHEAP_DBLK[1];
/* Declare extern the free list to manage the H5HL_free_t struct */
H5FL_EXTERN(H5HL_free_t);
/* Declare extern the PQ free list to manage the heap chunk information */
H5FL_BLK_EXTERN(lheap_chunk);
/**************************/
/* Package Private Macros */
/**************************/
#define H5HL_SIZEOF_HDR(F) \
H5HL_ALIGN(H5_SIZEOF_MAGIC + /*heap signature */ \
1 + /*version */ \
3 + /*reserved */ \
H5F_SIZEOF_SIZE(F) + /*data size */ \
H5F_SIZEOF_SIZE(F) + /*free list head */ \
H5F_SIZEOF_ADDR(F)) /*data address */
/* Value indicating end of free list on disk */
#define H5HL_FREE_NULL 1
/****************************/
/* 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;
/* Forward declarations */
typedef struct H5HL_dblk_t H5HL_dblk_t;
typedef struct H5HL_prfx_t H5HL_prfx_t;
struct H5HL_t {
/* General heap-management fields */
size_t rc; /* Ref. count for prefix & data block using this struct */
size_t prots; /* # of times the heap has been protected */
size_t sizeof_size; /* Size of file sizes */
size_t sizeof_addr; /* Size of file addresses */
hbool_t single_cache_obj; /* Indicate if the heap is a single object in the cache */
H5HL_free_t *freelist; /*the free list */
/* Prefix-specific fields */
H5HL_prfx_t *prfx; /* The prefix object for the heap */
haddr_t prfx_addr; /* address of heap prefix */
size_t prfx_size; /* size of heap prefix */
hsize_t free_block; /* Address of first free block */
/* Data block-specific fields */
H5HL_dblk_t *dblk; /* The data block object for the heap */
haddr_t dblk_addr; /* address of data block */
size_t dblk_size; /* size of heap data block on disk and in mem */
uint8_t *dblk_image; /* The data block image */
};
/* Struct for heap data block */
struct H5HL_dblk_t {
H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */
/* first field in structure */
H5HL_t *heap; /* Pointer to heap for data block */
};
/* Struct for heap prefix */
struct H5HL_prfx_t {
H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */
/* first field in structure */
H5HL_t *heap; /* Pointer to heap for prefix */
};
/* Callback information for loading local heap prefix from disk */
typedef struct H5HL_cache_prfx_ud_t {
/* Downwards */
size_t sizeof_size; /* Size of file sizes */
size_t sizeof_addr; /* Size of file addresses */
haddr_t prfx_addr; /* Address of prefix */
size_t sizeof_prfx; /* Size of heap prefix */
/* Upwards */
} H5HL_cache_prfx_ud_t;
/* Callback information for loading local heap data block from disk */
typedef struct H5HL_cache_dblk_ud_t {
/* Downwards */
H5HL_t *heap; /* Local heap */
/* Upwards */
hbool_t loaded; /* Whether data block was loaded from file */
} H5HL_cache_dblk_ud_t;
/******************************/
/* Package Private Prototypes */
/******************************/
/* Heap routines */
H5_DLL H5HL_t *H5HL_new(size_t sizeof_size, size_t sizeof_addr, size_t prfx_size);
H5_DLL herr_t H5HL_dest(H5HL_t *heap);
/* Heap prefix routines */
H5_DLL H5HL_prfx_t *H5HL_prfx_new(H5HL_t *heap);
H5_DLL herr_t H5HL_prfx_dest(H5HL_prfx_t *prfx);
/* Heap data block routines */
H5_DLL H5HL_dblk_t *H5HL_dblk_new(H5HL_t *heap);
H5_DLL herr_t H5HL_dblk_dest(H5HL_dblk_t *dblk);
#endif /* _H5HLpkg_H */
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