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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
* Friday, February 24, 2006
*
* Purpose: This file contains declarations which are visible only within
* the H5HF package. Source files outside the H5HF package should
* include H5HFprivate.h instead.
*/
#ifndef H5HF_PACKAGE
#error "Do not include this file outside the H5HF package!"
#endif
#ifndef _H5HFpkg_H
#define _H5HFpkg_H
/* Get package's private header */
#include "H5HFprivate.h"
/* Other private headers needed by this file */
#include "H5ACprivate.h" /* Metadata cache */
#include "H5FLprivate.h" /* Free Lists */
#include "H5RCprivate.h" /* Reference counted object functions */
/**************************/
/* Package Private Macros */
/**************************/
/* Size of signature information (on disk) */
#define H5HF_SIZEOF_MAGIC 4
/* Fractal heap signatures */
#define H5HF_HDR_MAGIC "FRHP" /* Header */
#define H5HF_DBLOCK_MAGIC "FHDB" /* Direct block */
/* "Standard" size of prefix information for fractal heap metadata */
#define H5HF_METADATA_PREFIX_SIZE ( \
4 /* Signature */ \
+ 1 /* Version */ \
+ 1 /* Metadata flags */ \
+ 4 /* Metadata checksum */ \
)
/* Size of doubling-table information */
#define H5HF_DTABLE_INFO_SIZE(f) ( \
2 /* Width of table (i.e. # of columns) */ \
+ H5F_SIZEOF_SIZE(f) /* Starting block size */ \
+ H5F_SIZEOF_SIZE(f) /* Maximum direct block size */ \
+ 2 /* Max. size of heap (log2 of actual value - i.e. the # of bits) */ \
+ 2 /* Starting # of rows in root indirect block */ \
+ H5F_SIZEOF_ADDR(f) /* File address of table managed */ \
+ 2 /* Current # of rows in root indirect block */ \
)
/* Size of the fractal heap header on disk */
#define H5HF_HEADER_SIZE(f) ( \
/* General metadata fields */ \
H5HF_METADATA_PREFIX_SIZE \
\
/* Fractal heap header specific fields */ \
+ 1 /* Address mapping */ \
+ 4 /* Min. size of standalone object */ \
+ 4 /* Length of fixed-size objects */ \
+ 1 /* Size of ref. count for objects */ \
+ H5HF_DTABLE_INFO_SIZE(f) /* Size of managed obj. doubling-table info */ \
)
/* Size of header for each object in an absolute managed direct block */
#define H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_SIZE(s, o) ( \
((s)->fixed_len_obj ? 0 : H5HF_SIZEOF_OFFSET_LEN(o)) /* Length of object in block */ \
+ (s)->ref_count_size /* Ref. count of object in block */ \
)
#define H5HF_MAN_ABS_DIRECT_OBJ_PREFIX_LEN_DBLOCK(s, d) ( \
((s)->fixed_len_obj ? 0 : (d)->blk_off_size) /* Length of object in block */ \
+ (s)->ref_count_size /* Ref. count of object in block */ \
)
/* Size of overhead for a direct block */
#define H5HF_MAN_ABS_DIRECT_OVERHEAD_SIZE(s, o) ( \
/* General metadata fields */ \
H5HF_METADATA_PREFIX_SIZE \
\
/* Fractal heap managed, absolutely mapped direct block specific fields */ \
+ H5F_SIZEOF_ADDR((s)->f) /* File address of heap owning the block */ \
+ (s)->heap_off_size /* Offset of the block in the heap */ \
+ H5HF_SIZEOF_OFFSET_LEN(o) /* Total free space in a block */ \
+ H5HF_SIZEOF_OFFSET_LEN(o) /* Offset of first descriptor in free list */ \
)
#define H5HF_MAN_ABS_DIRECT_OVERHEAD_DBLOCK(s, d) ( \
/* General metadata fields */ \
H5HF_METADATA_PREFIX_SIZE \
\
/* Fractal heap managed, absolutely mapped direct block specific fields */ \
+ H5F_SIZEOF_ADDR((s)->f) /* File address of heap owning the block */ \
+ (s)->heap_off_size /* Offset of the block in the heap */ \
+ (d)->blk_off_size /* Total free space in a block */ \
+ (d)->blk_off_size /* Offset of first descriptor in free list */ \
)
/* Compute the # of bytes required to store an offset into a given buffer size */
#define H5HF_SIZEOF_OFFSET_BITS(b) (((b) + 7) / 8)
#define H5HF_SIZEOF_OFFSET_LEN(l) H5HF_SIZEOF_OFFSET_BITS(H5V_log2((unsigned)(l)))
/****************************/
/* Package Private Typedefs */
/****************************/
/* Doubling-table info */
typedef struct H5HF_dtable_param_t {
/* Immutable, pre-set information for table */
H5HF_dtable_cparam_t cparam; /* Creation parameters for table */
/* Derived information (varies during lifetime of table) */
haddr_t table_addr; /* Address of first block for table */
/* Undefined if no space allocated for table */
unsigned curr_root_rows; /* Current number of rows in the root indirect block */
/* 0 indicates that the TABLE_ADDR field points
* to direct block (of START_BLOCK_SIZE) instead
* of indirect root block.
*/
} H5HF_dtable_param_t;
/* Each fractal heap has certain information that can be shared across all
* the instances of blocks in that fractal heap.
*/
typedef struct H5HF_shared_t {
/* Shared internal information (varies during lifetime of heap) */
hsize_t next_man_block; /* Offset of next direct managed block */
hsize_t next_std_block; /* Offset of next direct standalone block */
hsize_t total_man_free; /* Total amount of free space in managed blocks */
hsize_t total_std_free; /* Total # of free standalone ID entries */
/* Cached/computed values */
haddr_t heap_addr; /* Address of heap header in the file */
H5F_t *f; /* Pointer to file for heap */
/* Doubling table information */
/* (Partially set by user, partially derived/updated internally) */
H5HF_dtable_param_t man_dtable_info; /* Doubling-table info for managed objects */
H5HF_dtable_param_t std_dtable_info; /* Doubling-table info for standalone objects */
/* Information set by user */
H5HF_addrmap_t addrmap; /* Type of address mapping */
uint32_t standalone_size; /* Size of object to store standalone */
uint32_t fixed_len_size; /* Size of objects (only for heaps w/fixed-length objects) */
unsigned char ref_count_size; /* Size of ref. count for objects (only for heaps w/ref. counted objects) */
/* Information derived from user parameters */
hbool_t fixed_len_obj; /* Are objects in the heap fixed length? */
hbool_t ref_count_obj; /* Are objects in the heap ref. counted? */
hbool_t have_io_filter; /* Does the heap have I/O filters for the direct blocks? */
hbool_t write_once; /* Is heap being written in "write once" mode? */
unsigned char heap_off_size; /* Size of heap offsets (in bytes) */
} H5HF_shared_t;
/* The fractal heap header information */
typedef struct H5HF_t {
/* Information for H5AC cache functions, _must_ be first field in structure */
H5AC_info_t cache_info;
/* Internal fractal heap information */
H5RC_t *shared; /* Ref-counted shared info */
} H5HF_t;
/* Direct block free list node */
typedef struct H5HF_direct_free_node_t {
size_t size; /* Size of free space */
size_t my_offset; /* Offset of free space in block */
size_t next_offset; /* Offset of next free space in block */
struct H5HF_direct_free_node_t *prev; /* Previous node in free list */
struct H5HF_direct_free_node_t *next; /* Next node in free list */
} H5HF_direct_free_node_t;
/* Direct block free list header */
typedef struct H5HF_direct_free_head_t {
H5HF_direct_free_node_t *first; /* First node in free list */
hbool_t dirty; /* Free list is modified */
} H5HF_direct_free_head_t;
/* A fractal heap direct block */
typedef struct H5HF_direct_t {
/* Information for H5AC cache functions, _must_ be first field in structure */
H5AC_info_t cache_info;
/* Internal heap information */
H5RC_t *shared; /* Ref-counted shared info */
size_t size; /* Size of direct block */
size_t blk_off_size; /* Size of offsets in the block */
H5HF_direct_free_head_t *free_list; /* Pointer to free list for block */
uint8_t *blk; /* Pointer to buffer containing block data */
/* Stored values */
hsize_t block_off; /* Offset of the block within the heap's address space */
size_t blk_free_space; /* Total amount of free space in block */
size_t free_list_head; /* Offset of head of free list in block */
} H5HF_direct_t;
/*****************************/
/* Package Private Variables */
/*****************************/
/* H5HF header inherits cache-like properties from H5AC */
H5_DLLVAR const H5AC_class_t H5AC_FHEAP_HDR[1];
/* H5HF direct block inherits cache-like properties from H5AC */
H5_DLLVAR const H5AC_class_t H5AC_FHEAP_DBLOCK[1];
/* Declare a free list to manage the H5HF_t struct */
H5FL_EXTERN(H5HF_t);
/* Declare a free list to manage the H5HF_direct_t struct */
H5FL_EXTERN(H5HF_direct_t);
/* Declare a free list to manage the H5HF_direct_free_head_t struct */
H5FL_EXTERN(H5HF_direct_free_head_t);
/* Declare a free list to manage the H5HF_direct_free_node_t struct */
H5FL_EXTERN(H5HF_direct_free_node_t);
/* Declare a free list to manage heap direct block data to/from disk */
H5FL_BLK_EXTERN(direct_block);
/******************************/
/* Package Private Prototypes */
/******************************/
/* Routines for managing shared fractal heap info */
H5_DLL H5HF_shared_t * H5HF_shared_alloc(H5F_t *f);
H5_DLL herr_t H5HF_shared_create(H5F_t *f, H5HF_t *fh, haddr_t heap_addr, H5HF_create_t *cparam);
H5_DLL herr_t H5HF_shared_own(H5HF_t *fh, H5HF_shared_t *shared);
/* Routines for allocating space */
H5_DLL herr_t H5HF_man_alloc_end(H5RC_t *fh_shared, hid_t dxpl_id, unsigned *fh_flags_ptr,
size_t size, const void *obj, void *id/*out*/);
H5_DLL herr_t H5HF_man_dblock_build_freelist(H5HF_direct_t *dblock);
/* Metadata cache callbacks */
H5_DLL herr_t H5HF_cache_hdr_dest(H5F_t *f, H5HF_t *fh);
H5_DLL herr_t H5HF_cache_dblock_dest(H5F_t *f, H5HF_direct_t *dblock);
/* Debugging routines for dumping file structures */
H5_DLL herr_t H5HF_hdr_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr,
FILE *stream, int indent, int fwidth);
H5_DLL herr_t H5HF_dblock_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr,
FILE *stream, int indent, int fwidth, haddr_t hdr_addr, unsigned nrec);
/* Testing routines */
#ifdef H5HF_TESTING
H5_DLL herr_t H5HF_get_cparam_test(H5F_t *f, hid_t dxpl_id, haddr_t fh_addr,
H5HF_create_t *cparam);
#endif /* H5HF_TESTING */
#endif /* _H5HFpkg_H */
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