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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Oprivate.h
* Aug 5 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Object header private include file.
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
#ifndef _H5Oprivate_H
#define _H5Oprivate_H
/* Include the public header file for this API */
#include "H5Opublic.h" /* Object header functions */
/* Public headers needed by this file */
#include "H5Dpublic.h" /* Dataset functions */
#include "H5Spublic.h" /* Dataspace functions */
/* Private headers needed by this file */
#include "H5HGprivate.h" /* Global heap functions */
#include "H5Tprivate.h" /* Datatype functions */
#include "H5Zprivate.h" /* I/O pipeline filters */
/* Object header macros */
#define H5O_MIN_SIZE H5O_ALIGN(32) /*min obj header data size */
#define H5O_MAX_SIZE 65536 /*max obj header data size */
#define H5O_NEW_MESG (-1) /*new message */
/* Flags which are part of a message */
#define H5O_FLAG_CONSTANT 0x01u
#define H5O_FLAG_SHARED 0x02u
#define H5O_FLAG_BITS (H5O_FLAG_CONSTANT|H5O_FLAG_SHARED)
/* Flags for updating messages */
#define H5O_UPDATE_TIME 0x01u
#define H5O_UPDATE_DATA_ONLY 0x02u
/* Header message IDs */
#define H5O_NULL_ID 0x0000 /* Null Message. */
#define H5O_SDSPACE_ID 0x0001 /* Simple Dataspace Message. */
/* Complex dataspace is/was planned for message 0x0002 */
#define H5O_DTYPE_ID 0x0003 /* Datatype Message. */
#define H5O_FILL_ID 0x0004 /* Fill Value Message. (Old) */
#define H5O_FILL_NEW_ID 0x0005 /* Fill Value Message. (New) */
/* Compact data storage is/was planned for message 0x0006 */
#define H5O_EFL_ID 0x0007 /* External File List Message */
#define H5O_LAYOUT_ID 0x0008 /* Data Storage Layout Message. */
#define H5O_BOGUS_ID 0x0009 /* "Bogus" Message. */
/* message 0x000a appears unused... */
#define H5O_PLINE_ID 0x000b /* Filter pipeline message. */
#define H5O_ATTR_ID 0x000c /* Attribute Message. */
#define H5O_NAME_ID 0x000d /* Object name message. */
#define H5O_MTIME_ID 0x000e /* Modification time message. (Old) */
#define H5O_SHARED_ID 0x000f /* Shared object message. */
#define H5O_CONT_ID 0x0010 /* Object header continuation message. */
#define H5O_STAB_ID 0x0011 /* Symbol table message. */
#define H5O_MTIME_NEW_ID 0x0012 /* Modification time message. (New) */
/*
* Fill Value Message. (Old)
* (Data structure in memory)
*/
typedef struct H5O_fill_t {
H5T_t *type; /*type. Null implies same as dataset */
size_t size; /*number of bytes in the fill value */
void *buf; /*the fill value */
} H5O_fill_t;
/*
* New Fill Value Message. The new fill value message is fill value plus
* space allocation time and fill value writing time and whether fill
* value is defined.
*/
typedef struct H5O_fill_new_t {
H5T_t *type; /*type. Null implies same as dataset */
ssize_t size; /*number of bytes in the fill value */
void *buf; /*the fill value */
H5D_alloc_time_t alloc_time; /* time to allocate space */
H5D_fill_time_t fill_time; /* time to write fill value */
hbool_t fill_defined; /* whether fill value is defined */
} H5O_fill_new_t;
/*
* External File List Message
* (Data structure in memory)
*/
#define H5O_EFL_ALLOC 16 /*number of slots to alloc at once */
#define H5O_EFL_UNLIMITED H5F_UNLIMITED /*max possible file size */
typedef struct H5O_efl_entry_t {
size_t name_offset; /*offset of name within heap */
char *name; /*malloc'd name */
off_t offset; /*offset of data within file */
hsize_t size; /*size allocated within file */
} H5O_efl_entry_t;
typedef struct H5O_efl_t {
haddr_t heap_addr; /*address of name heap */
size_t nalloc; /*number of slots allocated */
size_t nused; /*number of slots used */
H5O_efl_entry_t *slot; /*array of external file entries */
} H5O_efl_t;
/*
* Data Layout Message.
* (Data structure in memory)
*/
#define H5O_LAYOUT_NDIMS (H5S_MAX_RANK+1)
typedef struct H5O_layout_contig_t {
haddr_t addr; /* File address of data */
hsize_t size; /* Size of data in bytes */
} H5O_layout_contig_t;
typedef struct H5O_layout_chunk_t {
haddr_t addr; /* File address of B-tree */
unsigned ndims; /* Num dimensions in chunk */
size_t dim[H5O_LAYOUT_NDIMS]; /* Size of chunk in elements */
size_t size; /* Size of chunk in bytes */
H5RC_t *btree_shared; /* Ref-counted info for B-tree nodes */
} H5O_layout_chunk_t;
typedef struct H5O_layout_compact_t {
hbool_t dirty; /* Dirty flag for compact dataset */
size_t size; /* Size of buffer in bytes */
void *buf; /* Buffer for compact dataset */
} H5O_layout_compact_t;
typedef struct H5O_layout_t {
H5D_layout_t type; /* Type of layout */
unsigned version; /* Version of message */
union {
H5O_layout_contig_t contig; /* Information for contiguous layout */
H5O_layout_chunk_t chunk; /* Information for chunked layout */
H5O_layout_compact_t compact; /* Information for compact layout */
} u;
} H5O_layout_t;
/* Enable reading/writing "bogus" messages */
/* #define H5O_ENABLE_BOGUS */
#ifdef H5O_ENABLE_BOGUS
/*
* "Bogus" Message.
* (Data structure in memory)
*/
#define H5O_BOGUS_VALUE 0xdeadbeef
typedef struct H5O_bogus_t {
unsigned u; /* Hold the bogus info */
} H5O_bogus_t;
#endif /* H5O_ENABLE_BOGUS */
/*
* Filter pipeline message.
* (Data structure in memory)
*/
typedef struct H5O_pline_t {
size_t nalloc; /*num elements in `filter' array */
size_t nused; /*num filters defined */
H5Z_filter_info_t *filter; /*array of filters */
} H5O_pline_t;
/*
* Object name message.
* (Data structure in memory)
*/
typedef struct H5O_name_t {
char *s; /*ptr to malloc'd memory */
} H5O_name_t;
/*
* Shared object message. This message ID never really appears in an object
* header. Instead, bit 2 of the `Flags' field will be set and the ID field
* will be the ID of the pointed-to message.
*/
typedef struct H5O_shared_t {
hbool_t in_gh; /*shared by global heap? */
union {
H5HG_t gh; /*global heap info */
H5G_entry_t ent; /*symbol table entry info */
} u;
} H5O_shared_t;
/*
* Object header continuation message.
* (Data structure in memory)
*/
typedef struct H5O_cont_t {
haddr_t addr; /*address of continuation block */
size_t size; /*size of continuation block */
/* the following field(s) do not appear on disk */
unsigned chunkno; /*chunk this mesg refers to */
} H5O_cont_t;
/*
* Symbol table message.
* (Data structure in memory)
*/
typedef struct H5O_stab_t {
haddr_t btree_addr; /*address of B-tree */
haddr_t heap_addr; /*address of name heap */
} H5O_stab_t;
/* Typedef for iteration operations */
typedef herr_t (*H5O_operator_t)(const void *mesg/*in*/, unsigned idx,
void *operator_data/*in,out*/);
/* General message operators */
H5_DLL herr_t H5O_create(H5F_t *f, hid_t dxpl_id, size_t size_hint,
H5G_entry_t *ent/*out*/);
H5_DLL herr_t H5O_open(H5G_entry_t *ent);
H5_DLL herr_t H5O_close(H5G_entry_t *ent);
H5_DLL int H5O_link(const H5G_entry_t *ent, int adjust, hid_t dxpl_id);
H5_DLL int H5O_count(H5G_entry_t *ent, unsigned type_id, hid_t dxpl_id);
H5_DLL htri_t H5O_exists(H5G_entry_t *ent, unsigned type_id, int sequence,
hid_t dxpl_id);
H5_DLL void *H5O_read(H5G_entry_t *ent, unsigned type_id, int sequence,
void *mesg, hid_t dxpl_id);
H5_DLL int H5O_modify(H5G_entry_t *ent, unsigned type_id,
int overwrite, unsigned flags, unsigned update_flags, const void *mesg, hid_t dxpl_id);
H5_DLL struct H5O_t * H5O_protect(H5G_entry_t *ent, hid_t dxpl_id);
H5_DLL herr_t H5O_unprotect(H5G_entry_t *ent, struct H5O_t *oh, hid_t dxpl_id,
hbool_t oh_dirtied);
H5_DLL int H5O_append(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh, unsigned type_id,
unsigned flags, const void *mesg, hbool_t * oh_dirtied_ptr);
H5_DLL herr_t H5O_touch(H5G_entry_t *ent, hbool_t force, hid_t dxpl_id);
H5_DLL herr_t H5O_touch_oh(H5F_t *f, struct H5O_t *oh, hbool_t force,
hbool_t * oh_dirtied_ptr);
#ifdef H5O_ENABLE_BOGUS
H5_DLL herr_t H5O_bogus(H5G_entry_t *ent, hid_t dxpl_id);
H5_DLL herr_t H5O_bogus_oh(H5F_t *f, struct H5O_t *oh,
hbool_t * oh_dirtied_ptr);
#endif /* H5O_ENABLE_BOGUS */
H5_DLL herr_t H5O_remove(H5G_entry_t *ent, unsigned type_id, int sequence,
hid_t dxpl_id);
H5_DLL herr_t H5O_reset(unsigned type_id, void *native);
H5_DLL void *H5O_free(unsigned type_id, void *mesg);
H5_DLL herr_t H5O_encode(H5F_t *f, unsigned char *buf, void *obj, unsigned type_id);
H5_DLL void* H5O_decode(H5F_t *f, const unsigned char *buf, unsigned type_id);
H5_DLL void *H5O_copy(unsigned type_id, const void *mesg, void *dst);
H5_DLL size_t H5O_raw_size(unsigned type_id, const H5F_t *f, const void *mesg);
H5_DLL herr_t H5O_get_share(unsigned type_id, H5F_t *f, const void *mesg, H5O_shared_t *share);
H5_DLL herr_t H5O_delete(H5F_t *f, hid_t dxpl_id, haddr_t addr);
H5_DLL herr_t H5O_get_info(H5G_entry_t *ent, H5O_stat_t *ostat, hid_t dxpl_id);
H5_DLL herr_t H5O_iterate(const H5G_entry_t *ent, unsigned type_id, H5O_operator_t op,
void *op_data, hid_t dxpl_id);
H5_DLL herr_t H5O_debug_id(hid_t type_id, H5F_t *f, hid_t dxpl_id, const void *mesg, FILE *stream, int indent, int fwidth);
H5_DLL herr_t H5O_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE * stream, int indent,
int fwidth);
/* Layout operators */
H5_DLL size_t H5O_layout_meta_size(const H5F_t *f, const void *_mesg);
/* EFL operators */
H5_DLL hsize_t H5O_efl_total_size(H5O_efl_t *efl);
/* Fill value operators */
H5_DLL herr_t H5O_fill_convert(void *_fill, H5T_t *type, hid_t dxpl_id);
#endif
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