1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Opublic.h
* Aug 5 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Public declarations for the H5O (object header)
* package.
*
*-------------------------------------------------------------------------
*/
#ifndef _H5Opublic_H
#define _H5Opublic_H
/* Public headers needed by this file */
#include "H5public.h" /* Generic Functions */
#include "H5Ipublic.h" /* IDs */
#include "H5Lpublic.h" /* Links */
/*****************/
/* Public Macros */
/*****************/
/* Flags for object copy (H5Ocopy) */
#define H5O_COPY_SHALLOW_HIERARCHY_FLAG (0x0001u) /* Copy only immediate members */
#define H5O_COPY_EXPAND_SOFT_LINK_FLAG (0x0002u) /* Expand soft links into new objects */
#define H5O_COPY_EXPAND_EXT_LINK_FLAG (0x0004u) /* Expand external links into new objects */
#define H5O_COPY_EXPAND_REFERENCE_FLAG (0x0008u) /* Copy objects that are pointed by references */
#define H5O_COPY_WITHOUT_ATTR_FLAG (0x0010u) /* Copy object without copying attributes */
#define H5O_COPY_PRESERVE_NULL_FLAG (0x0020u) /* Copy NULL messages (empty space) */
#define H5O_COPY_ALL (0x003Fu) /* All object copying flags (for internal checking) */
/* Flags for shared message indexes.
* Pass these flags in using the mesg_type_flags parameter in
* H5P_set_shared_mesg_index.
* (Developers: These flags correspond to object header message type IDs,
* but we need to assign each kind of message to a different bit so that
* one index can hold multiple types.)
*/
#define H5O_MESG_NONE_FLAG 0x0000 /* No shared messages */
#define H5O_MESG_SDSPACE_FLAG 0x0001 /* Simple Dataspace Message. */
#define H5O_MESG_DTYPE_FLAG 0x0002 /* Datatype Message. */
#define H5O_MESG_FILL_FLAG 0x0004 /* Fill Value Message. */
#define H5O_MESG_PLINE_FLAG 0x0008 /* Filter pipeline message. */
#define H5O_MESG_ATTR_FLAG 0x0010 /* Attribute Message. */
#define H5O_MESG_ALL_FLAG (H5O_MESG_SDSPACE_FLAG | H5O_MESG_DTYPE_FLAG | H5O_MESG_FILL_FLAG | H5O_MESG_PLINE_FLAG | H5O_MESG_ATTR_FLAG)
/* Object header status flag definitions */
#define H5O_HDR_CHUNK0_SIZE 0x03 /* 2-bit field indicating # of bytes to store the size of chunk 0's data */
#define H5O_HDR_ATTR_CRT_ORDER_TRACKED 0x04 /* Attribute creation order is tracked */
#define H5O_HDR_ATTR_CRT_ORDER_INDEXED 0x08 /* Attribute creation order has index */
#define H5O_HDR_ATTR_STORE_PHASE_CHANGE 0x10 /* Non-default attribute storage phase change values stored */
#define H5O_HDR_STORE_TIMES 0x20 /* Store access, modification, change & birth times for object */
#define H5O_HDR_ALL_FLAGS (H5O_HDR_CHUNK0_SIZE | H5O_HDR_ATTR_CRT_ORDER_TRACKED | H5O_HDR_ATTR_CRT_ORDER_INDEXED | H5O_HDR_ATTR_STORE_PHASE_CHANGE | H5O_HDR_STORE_TIMES)
/* Maximum shared message values. Number of indexes is 8 to allow room to add
* new types of messages.
*/
#define H5O_SHMESG_MAX_NINDEXES 8
#define H5O_SHMESG_MAX_LIST_SIZE 5000
/*******************/
/* Public Typedefs */
/*******************/
/* A struct that's part of the H5G_stat_t routine (deprecated) */
typedef struct H5O_stat_t {
hsize_t size; /* Total size of object header in file */
hsize_t free; /* Free space within object header */
unsigned nmesgs; /* Number of object header messages */
unsigned nchunks; /* Number of object header chunks */
} H5O_stat_t;
/* Types of objects in file */
typedef enum H5O_type_t {
H5O_TYPE_UNKNOWN = -1, /* Unknown object type */
H5O_TYPE_GROUP, /* Object is a group */
H5O_TYPE_DATASET, /* Object is a dataset */
H5O_TYPE_NAMED_DATATYPE /* Object is a named data type */
} H5O_type_t;
/* Information struct for object (for H5Oget_info/H5Oget_info_by_idx) */
typedef struct H5O_info_t {
unsigned long fileno; /* File number that object is located in */
haddr_t addr; /* Object address in file */
H5O_type_t type; /* Basic object type (group, dataset, etc.) */
unsigned rc; /* Reference count of object */
time_t atime; /* Access time */
time_t mtime; /* Modification time */
time_t ctime; /* Change time */
time_t btime; /* Birth time */
hsize_t num_attrs; /* # of attributes attached to object */
struct {
unsigned version; /* Version number of header format in file */
unsigned nmesgs; /* Number of object header messages */
unsigned nchunks; /* Number of object header chunks */
unsigned flags; /* Object header status flags */
struct {
hsize_t total; /* Total space for storing object header in file */
hsize_t meta; /* Space within header for object header metadata information */
hsize_t mesg; /* Space within header for actual message information */
hsize_t free; /* Free space within object header */
} space;
struct {
uint64_t present; /* Flags to indicate presence of message type in header */
uint64_t shared; /* Flags to indicate message type is shared in header */
} mesg;
} hdr;
hsize_t meta_size; /* Size of additional metadata for an object */
/* (B-tree & heap for groups, B-tree for chunked dataset, etc.) */
} H5O_info_t;
/* Typedef for message creation indexes */
typedef uint32_t H5O_msg_crt_idx_t;
/********************/
/* Public Variables */
/********************/
#ifdef __cplusplus
extern "C" {
#endif
/*********************/
/* Public Prototypes */
/*********************/
H5_DLL hid_t H5Oopen(hid_t loc_id, const char *name, hid_t lapl_id);
H5_DLL hid_t H5Oopen_by_addr(hid_t loc_id, haddr_t addr);
H5_DLL hid_t H5Oopen_by_idx(hid_t loc_id, const char *group_name,
H5_index_t idx_type, H5_iter_order_t order, hsize_t n, hid_t lapl_id);
H5_DLL herr_t H5Oget_info(hid_t loc_id, const char *name, H5O_info_t *oinfo,
hid_t lapl_id);
H5_DLL herr_t H5Oget_info_by_idx(hid_t loc_id, const char *group_name,
H5_index_t idx_type, H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo,
hid_t lapl_id);
H5_DLL herr_t H5Oincr_refcount(hid_t object_id);
H5_DLL herr_t H5Odecr_refcount(hid_t object_id);
H5_DLL herr_t H5Ocopy(hid_t src_loc_id, const char *src_name, hid_t dst_loc_id,
const char *dst_name, hid_t ocpypl_id, hid_t lcpl_id);
H5_DLL herr_t H5Oclose(hid_t object_id);
#ifdef __cplusplus
}
#endif
#endif /* _H5Opublic_H */
|
