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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 */
/* Size of the fractal heap header on disk */
#define H5HF_HEADER_SIZE(f) ( \
/* General metadata fields */ \
4 /* Signature */ \
+ 1 /* Version */ \
+ 1 /* Metadata flags */ \
+ 4 /* Metadata checksum */ \
\
/* Fractal heap header specific fields */ \
+ 1 /* Heap type */ \
)
/****************************/
/* Package Private Typedefs */
/****************************/
/* Doubling-table info */
typedef struct H5HF_dtable_param_t {
/* Immutable, pre-set information for table */
unsigned width; /* Number of columns in the table (must be power of 2) */
hsize_t start_block_size; /* Starting block size for table (must be power of 2) */
hsize_t max_direct_size; /* Maximum size of a direct block (must be power of 2) */
hsize_t max_index; /* Maximum ID/offset for table (must be power of 2) */
unsigned start_root_rows; /* Starting number of rows for root indirect block */
/* 0 indicates to create the full indirect block for the root,
* right from the start. Doesn't have to be power of 2
*/
/* Derived information that 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 */
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 */
/* 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_type_t type; /* Type of address mapping */
size_t standalone_size; /* Size of object to store standalone */
size_t fixed_len_size; /* Size of objects (only for heaps w/fixed-length 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? */
} H5HF_shared_t;
/* The fractal heap 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;
/*****************************/
/* Package Private Variables */
/*****************************/
/* H5HF header inherits cache-like properties from H5AC */
H5_DLLVAR const H5AC_class_t H5AC_FHEAP_HDR[1];
/* Declare a free list to manage the H5HF_t struct */
H5FL_EXTERN(H5HF_t);
/******************************/
/* Package Private Prototypes */
/******************************/
/* Routines for managing shared fractal heap info */
H5_DLL herr_t H5HF_shared_init(H5F_t *f, H5HF_t *fh, H5HF_type_t type);
/* Metadata cache callbacks */
H5_DLL herr_t H5HF_cache_hdr_dest(H5F_t *f, H5HF_t *b);
/* 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);
/* Testing routines */
#ifdef H5HF_TESTING
H5_DLL herr_t H5HF_get_addrmap_test(H5F_t *f, hid_t dxpl_id, haddr_t fh_addr,
H5HF_type_t *heap_type);
#endif /* H5HF_TESTING */
#endif /* _H5HFpkg_H */
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