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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************/
/* Module Setup */
/****************/
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#define H5G_PACKAGE /*suppress error about including H5Gpkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Gpkg.h" /* Groups */
#include "H5Iprivate.h" /* IDs */
#include "H5Opkg.h" /* Object headers */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
static htri_t H5O_group_isa(H5O_t *loc);
static hid_t H5O_group_open(const H5G_loc_t *obj_loc, hid_t dxpl_id);
static void *H5O_group_create(H5F_t *f, void *_crt_info, H5G_loc_t *obj_loc,
hid_t dxpl_id);
static H5O_loc_t *H5O_group_get_oloc(hid_t obj_id);
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* This message derives from H5O object class */
const H5O_obj_class_t H5O_OBJ_GROUP[1] = {{
H5O_TYPE_GROUP, /* object type */
"group", /* object name, for debugging */
NULL, /* get 'copy file' user data */
NULL, /* free 'copy file' user data */
H5O_group_isa, /* "isa" message */
H5O_group_open, /* open an object of this class */
H5O_group_create, /* create an object of this class */
H5O_group_get_oloc /* get an object header location for an object */
}};
/*-------------------------------------------------------------------------
* Function: H5O_group_isa
*
* Purpose: Determines if an object has the requisite messages for being
* a group.
*
* Return: Success: TRUE if the required group messages are
* present; FALSE otherwise.
*
* Failure: FAIL if the existence of certain messages
* cannot be determined.
*
* Programmer: Robb Matzke
* Monday, November 2, 1998
*
*-------------------------------------------------------------------------
*/
static htri_t
H5O_group_isa(struct H5O_t *oh)
{
htri_t stab_exists; /* Whether the 'stab' message is in the object header */
htri_t linfo_exists; /* Whether the 'linfo' message is in the object header */
htri_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_group_isa)
HDassert(oh);
/* Check for any of the messages that indicate a group */
if((stab_exists = H5O_msg_exists_oh(oh, H5O_STAB_ID)) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to read object header")
if((linfo_exists = H5O_msg_exists_oh(oh, H5O_LINFO_ID)) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "unable to read object header")
ret_value = (stab_exists > 0 || linfo_exists > 0);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_group_isa() */
/*-------------------------------------------------------------------------
* Function: H5O_group_open
*
* Purpose: Open a group at a particular location
*
* Return: Success: Open object identifier
* Failure: Negative
*
* Programmer: Quincey Koziol
* Monday, November 6, 2006
*
*-------------------------------------------------------------------------
*/
static hid_t
H5O_group_open(const H5G_loc_t *obj_loc, hid_t dxpl_id)
{
H5G_t *grp = NULL; /* Group opened */
hid_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_group_open)
HDassert(obj_loc);
/* Open the group */
if(NULL == (grp = H5G_open(obj_loc, dxpl_id)))
HGOTO_ERROR(H5E_SYM, H5E_CANTOPENOBJ, FAIL, "unable to open group")
/* Register an ID for the group */
if((ret_value = H5I_register(H5I_GROUP, grp)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register group")
done:
if(ret_value < 0)
if(grp && H5G_close(grp) < 0)
HDONE_ERROR(H5E_SYM, H5E_CLOSEERROR, FAIL, "unable to release group")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_group_open() */
/*-------------------------------------------------------------------------
* Function: H5O_group_create
*
* Purpose: Create a group in a file
*
* Return: Success: Pointer to the group data structure
* Failure: NULL
*
* Programmer: Quincey Koziol
* Tuesday, April 10, 2007
*
*-------------------------------------------------------------------------
*/
static void *
H5O_group_create(H5F_t *f, void *_crt_info, H5G_loc_t *obj_loc, hid_t dxpl_id)
{
H5G_obj_create_t *crt_info = (H5G_obj_create_t *)_crt_info; /* Group creation parameters */
H5G_t *grp = NULL; /* New group created */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_group_create)
/* Sanity checks */
HDassert(f);
HDassert(crt_info);
HDassert(obj_loc);
/* Create the the group */
if(NULL == (grp = H5G_create(f, crt_info->gcpl_id, dxpl_id)))
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, NULL, "unable to create group")
/* Set up the new group's location */
if(NULL == (obj_loc->oloc = H5G_oloc(grp)))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "unable to get object location of group")
if(NULL == (obj_loc->path = H5G_nameof(grp)))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "unable to get path of group")
/* Set the return value */
ret_value = grp;
done:
if(ret_value == NULL)
if(grp && H5G_close(grp) < 0)
HDONE_ERROR(H5E_SYM, H5E_CLOSEERROR, NULL, "unable to release group")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_group_create() */
/*-------------------------------------------------------------------------
* Function: H5O_group_get_oloc
*
* Purpose: Retrieve the object header location for an open object
*
* Return: Success: Pointer to object header location
* Failure: NULL
*
* Programmer: Quincey Koziol
* Monday, November 6, 2006
*
*-------------------------------------------------------------------------
*/
static H5O_loc_t *
H5O_group_get_oloc(hid_t obj_id)
{
H5G_t *grp; /* Group opened */
H5O_loc_t *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_group_get_oloc)
/* Get the group */
if(NULL == (grp = H5I_object(obj_id)))
HGOTO_ERROR(H5E_OHDR, H5E_BADATOM, NULL, "couldn't get object from ID")
/* Get the group's object header location */
if(NULL == (ret_value = H5G_oloc(grp)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get object location from object")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_group_get_oloc() */
/*-------------------------------------------------------------------------
* Function: H5O_group_bh_info
*
* Purpose: Retrieve storage for 1.8 btree and heap
* Retrieve storage for 1.6 btree and heap via H5G_stab_bh_info()
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Vailin Choi
* July 12 2007
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_group_bh_info(H5F_t *f, hid_t dxpl_id, H5O_t *oh, H5_ih_info_t *bh_info)
{
H5O_linfo_t linfo; /* Link info message */
H5HF_t *fheap = NULL; /* Fractal heap handle */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5O_group_bh_info, FAIL)
/* Sanity check */
HDassert(f);
HDassert(oh);
HDassert(bh_info);
/* Check for "new style" group info */
if(NULL == H5O_msg_read_real(f, dxpl_id, oh, H5O_LINFO_ID, &linfo)) {
H5O_stab_t stab; /* Info about symbol table */
/* Must be "old style" group, clear error stack */
H5E_clear_stack(NULL);
/* Get symbol table message */
if(NULL == H5O_msg_read_real(f, dxpl_id, oh, H5O_STAB_ID, &stab))
HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "can't find LINFO nor STAB messages")
/* Get symbol table size info */
if(H5G_stab_bh_size(f, dxpl_id, &stab, bh_info) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "can't retrieve symbol table size info")
} /* end if */
else { /* LINFO */
/* Get creation order B-tree size, if available */
if(H5F_addr_defined(linfo.corder_bt2_addr))
if(H5B2_iterate_size(f, dxpl_id, H5G_BT2_CORDER, linfo.corder_bt2_addr, &bh_info->index_size) < 0)
HGOTO_ERROR(H5E_BTREE, H5E_CANTGET, FAIL, "can't retrieve B-tree storage info")
/* Get name order B-tree size, if available */
if(H5F_addr_defined(linfo.name_bt2_addr))
if(H5B2_iterate_size(f, dxpl_id, H5G_BT2_NAME, linfo.name_bt2_addr, &bh_info->index_size) < 0)
HGOTO_ERROR(H5E_BTREE, H5E_CANTGET, FAIL, "can't retrieve B-tree storage info")
/* Get fractal heap size, if available */
if(H5F_addr_defined(linfo.fheap_addr)) {
/* Open the fractal heap for links */
if(NULL == (fheap = H5HF_open(f, dxpl_id, linfo.fheap_addr)))
HGOTO_ERROR(H5E_HEAP, H5E_CANTOPENOBJ, FAIL, "unable to open fractal heap")
/* Get heap storage size */
if(H5HF_size(fheap, dxpl_id, &bh_info->heap_size) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CANTGET, FAIL, "can't retrieve fractal heap storage info")
/* Release the fractal heap */
if(H5HF_close(fheap, dxpl_id) < 0)
HGOTO_ERROR(H5E_HEAP, H5E_CLOSEERROR, FAIL, "can't close fractal heap")
fheap = NULL;
} /* end if */
} /* end else */
done:
/* Release resources */
if(fheap && H5HF_close(fheap, dxpl_id) < 0)
HDONE_ERROR(H5E_HEAP, H5E_CLOSEERROR, FAIL, "can't close fractal heap")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_group_bh_info() */
|
