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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef H5O_PACKAGE
#error "Do not include this file outside the H5O package!"
#endif
#ifndef _H5Opkg_H
#define _H5Opkg_H
/* Include private header file */
#include "H5Oprivate.h" /* Object header functions */
/*
* Align messages on 8-byte boundaries because we would like to copy the
* object header chunks directly into memory and operate on them there, even
* on 64-bit architectures. This allows us to reduce the number of disk I/O
* requests with a minimum amount of mem-to-mem copies.
*/
#define H5O_ALIGN(X) (8*(((X)+8-1)/8))
/* Object header macros */
#define H5O_NMESGS 32 /*initial number of messages */
#define H5O_NCHUNKS 8 /*initial number of chunks */
#define H5O_ALL (-1) /*delete all messages of type */
/* Version of object header structure */
#define H5O_VERSION 1
/*
* Size of object header header.
*/
#define H5O_SIZEOF_HDR(F) \
H5O_ALIGN(1 + /*version number */ \
1 + /*alignment */ \
2 + /*number of messages */ \
4 + /*reference count */ \
4) /*header data size */
/*
* Size of message header
*/
#define H5O_SIZEOF_MSGHDR(F) \
H5O_ALIGN(2 + /*message type */ \
2 + /*sizeof message data */ \
4) /*reserved */
typedef struct H5O_class_t {
int id; /*message type ID on disk */
const char *name; /*for debugging */
size_t native_size; /*size of native message */
void *(*decode)(H5F_t*, hid_t, const uint8_t*, struct H5O_shared_t*);
herr_t (*encode)(H5F_t*, uint8_t*, const void*);
void *(*copy)(const void*, void*, unsigned); /*copy native value */
size_t (*raw_size)(H5F_t*, const void*);/*sizeof raw val */
herr_t (*reset)(void *); /*free nested data structs */
herr_t (*free)(void *); /*free main data struct */
herr_t (*del)(H5F_t *, hid_t, const void *); /* Delete space in file referenced by this message */
herr_t (*link)(H5F_t *, hid_t, const void *); /* Increment any links in file reference by this message */
herr_t (*get_share)(H5F_t*, const void*, struct H5O_shared_t*); /* Get shared information */
herr_t (*set_share)(H5F_t*, void*, const struct H5O_shared_t*); /* Set shared information */
herr_t (*debug)(H5F_t*, hid_t, const void*, FILE*, int, int);
} H5O_class_t;
typedef struct H5O_mesg_t {
const H5O_class_t *type; /*type of message */
hbool_t dirty; /*raw out of date wrt native */
uint8_t flags; /*message flags */
void *native; /*native format message */
uint8_t *raw; /*ptr to raw data */
size_t raw_size; /*size with alignment */
unsigned chunkno; /*chunk number for this mesg */
} H5O_mesg_t;
typedef struct H5O_chunk_t {
hbool_t dirty; /*dirty flag */
haddr_t addr; /*chunk file address */
size_t size; /*chunk size */
uint8_t *image; /*image of file */
} H5O_chunk_t;
typedef struct H5O_t {
H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */
/* first field in structure */
int version; /*version number */
int nlink; /*link count */
unsigned nmesgs; /*number of messages */
unsigned alloc_nmesgs; /*number of message slots */
H5O_mesg_t *mesg; /*array of messages */
unsigned nchunks; /*number of chunks */
unsigned alloc_nchunks; /*chunks allocated */
H5O_chunk_t *chunk; /*array of chunks */
} H5O_t;
/*
* Null Message.
*/
H5_DLLVAR const H5O_class_t H5O_NULL[1];
/*
* Simple Data Space Message.
*/
H5_DLLVAR const H5O_class_t H5O_SDSPACE[1];
/*
* Data Type Message.
*/
H5_DLLVAR const H5O_class_t H5O_DTYPE[1];
/*
* Old Fill Value Message.
*/
H5_DLLVAR const H5O_class_t H5O_FILL[1];
/*
* 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.
*/
H5_DLLVAR const H5O_class_t H5O_FILL_NEW[1];
/*
* External File List Message
*/
H5_DLLVAR const H5O_class_t H5O_EFL[1];
/*
* Data Layout Message.
*/
H5_DLLVAR const H5O_class_t H5O_LAYOUT[1];
#ifdef H5O_ENABLE_BOGUS
/*
* "Bogus" Message.
*/
H5_DLLVAR const H5O_class_t H5O_BOGUS[1];
#endif /* H5O_ENABLE_BOGUS */
/*
* Filter pipeline message.
*/
H5_DLLVAR const H5O_class_t H5O_PLINE[1];
/*
* Attribute Message.
*/
H5_DLLVAR const H5O_class_t H5O_ATTR[1];
/*
* Object name message.
*/
H5_DLLVAR const H5O_class_t H5O_NAME[1];
/*
* Modification time message. The message is just a `time_t'.
* (See also the "new" modification time message)
*/
H5_DLLVAR const H5O_class_t H5O_MTIME[1];
/*
* 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.
*/
H5_DLLVAR const H5O_class_t H5O_SHARED[1];
/*
* Object header continuation message.
*/
H5_DLLVAR const H5O_class_t H5O_CONT[1];
/*
* Symbol table message.
*/
H5_DLLVAR const H5O_class_t H5O_STAB[1];
/*
* New Modification time message. The message is just a `time_t'.
*/
H5_DLLVAR const H5O_class_t H5O_MTIME_NEW[1];
/*
* Generic property list message.
*/
H5_DLLVAR const H5O_class_t H5O_PLIST[1];
/* Package-local function prototypes */
H5_DLL void * H5O_read_real(H5G_entry_t *ent, const H5O_class_t *type,
int sequence, void *mesg, hid_t dxpl_id);
H5_DLL void * H5O_free_real(const H5O_class_t *type, void *mesg);
/* Shared object operators */
H5_DLL void * H5O_shared_read(H5F_t *f, hid_t dxpl_id, H5O_shared_t *shared,
const H5O_class_t *type, void *mesg);
/* Symbol table operators */
H5_DLL void *H5O_stab_fast(const H5G_cache_t *cache, const struct H5O_class_t *type,
void *_mesg);
#endif /* _H5Opkg_H */
|
