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
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 H5D_PACKAGE /*suppress error about including H5Dpkg */
#define H5O_PACKAGE /*suppress error about including H5Opkg */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Dpkg.h" /* Datasets */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free lists */
#include "H5Iprivate.h" /* IDs */
#include "H5Opkg.h" /* Object headers */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Local Prototypes */
/********************/
static void *H5O_dset_get_copy_file_udata(void);
static void H5O_dset_free_copy_file_udata(void *);
static htri_t H5O_dset_isa(H5O_t *loc);
static hid_t H5O_dset_open(const H5G_loc_t *obj_loc, hid_t dxpl_id);
static void *H5O_dset_create(H5F_t *f, void *_crt_info, H5G_loc_t *obj_loc,
hid_t dxpl_id);
static H5O_loc_t *H5O_dset_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_DATASET[1] = {{
H5O_TYPE_DATASET, /* object type */
"dataset", /* object name, for debugging */
H5O_dset_get_copy_file_udata, /* get 'copy file' user data */
H5O_dset_free_copy_file_udata, /* free 'copy file' user data */
H5O_dset_isa, /* "isa" message */
H5O_dset_open, /* open an object of this class */
H5O_dset_create, /* create an object of this class */
H5O_dset_get_oloc /* get an object header location for an object */
}};
/* Declare a free list to manage the H5D_copy_file_ud_t struct */
H5FL_DEFINE(H5D_copy_file_ud_t);
/*-------------------------------------------------------------------------
* Function: H5O_dset_get_copy_file_udata
*
* Purpose: Allocates the user data needed for copying a dataset's
* object header from file to file.
*
* Return: Success: Non-NULL pointer to user data
*
* Failure: NULL
*
* Programmer: Quincey Koziol
* Monday, November 21, 2005
*
*-------------------------------------------------------------------------
*/
static void *
H5O_dset_get_copy_file_udata(void)
{
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_dset_get_copy_file_udata)
/* Allocate space for the 'copy file' user data for copying datasets */
if(NULL == (ret_value = H5FL_CALLOC(H5D_copy_file_ud_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_dset_get_copy_file_udata() */
/*-------------------------------------------------------------------------
* Function: H5O_dset_free_copy_file_udata
*
* Purpose: Release the user data needed for copying a dataset's
* object header from file to file.
*
* Return: <none>
*
* Programmer: Quincey Koziol
* Monday, November 21, 2005
*
* Modifications: Peter Cao
* Tuesday, December 27, 2005
* Free filter pipeline for copying a dataset
*
*-------------------------------------------------------------------------
*/
static void
H5O_dset_free_copy_file_udata(void *_udata)
{
H5D_copy_file_ud_t *udata = (H5D_copy_file_ud_t *)_udata;
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_dset_free_copy_file_udata)
/* Sanity check */
HDassert(udata);
/* Release copy of dataset's dataspace extent, if it was set */
if(udata->src_space_extent)
H5O_msg_free(H5O_SDSPACE_ID, udata->src_space_extent);
/* Release copy of dataset's datatype, if it was set */
if(udata->src_dtype)
H5T_close(udata->src_dtype);
/* Release copy of dataset's filter pipeline, if it was set */
if (udata->src_pline)
H5O_msg_free(H5O_PLINE_ID, udata->src_pline);
/* Release space for 'copy file' user data */
H5FL_FREE(H5D_copy_file_ud_t, udata);
FUNC_LEAVE_NOAPI_VOID
} /* end H5O_dset_free_copy_file_udata() */
/*-------------------------------------------------------------------------
* Function: H5O_dset_isa
*
* Purpose: Determines if an object has the requisite messages for being
* a dataset.
*
* Return: Success: TRUE if the required dataset messages are
* present; FALSE otherwise.
*
* Failure: FAIL if the existence of certain messages
* cannot be determined.
*
* Programmer: Robb Matzke
* Monday, November 2, 1998
*
*-------------------------------------------------------------------------
*/
htri_t
H5O_dset_isa(H5O_t *oh)
{
htri_t exists; /* Flag if header message of interest exists */
htri_t ret_value = TRUE; /* Return value */
FUNC_ENTER_NOAPI(H5O_dset_isa, FAIL)
HDassert(oh);
/* Datatype */
if((exists = H5O_msg_exists_oh(oh, H5O_DTYPE_ID)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to read object header")
else if(!exists)
HGOTO_DONE(FALSE)
/* Layout */
if((exists = H5O_msg_exists_oh(oh, H5O_SDSPACE_ID)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to read object header")
else if(!exists)
HGOTO_DONE(FALSE)
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_dset_isa() */
/*-------------------------------------------------------------------------
* Function: H5O_dset_open
*
* Purpose: Open a dataset at a particular location
*
* Return: Success: Open object identifier
* Failure: Negative
*
* Programmer: Quincey Koziol
* Monday, November 6, 2006
*
*-------------------------------------------------------------------------
*/
static hid_t
H5O_dset_open(const H5G_loc_t *obj_loc, hid_t dxpl_id)
{
H5D_t *dset = NULL; /* Dataset opened */
hid_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_dset_open)
HDassert(obj_loc);
/* Open the dataset */
if(NULL == (dset = H5D_open(obj_loc, dxpl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "unable to open dataset")
/* Register an ID for the dataset */
if((ret_value = H5I_register(H5I_DATASET, dset)) < 0)
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register dataset")
done:
if(ret_value < 0)
if(dset && H5D_close(dset) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CLOSEERROR, FAIL, "unable to release dataset")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_dset_open() */
/*-------------------------------------------------------------------------
* Function: H5O_dset_create
*
* Purpose: Create a dataset in a file
*
* Return: Success: Pointer to the dataset data structure
* Failure: NULL
*
* Programmer: Quincey Koziol
* Wednesday, April 11, 2007
*
*-------------------------------------------------------------------------
*/
static void *
H5O_dset_create(H5F_t *f, void *_crt_info, H5G_loc_t *obj_loc, hid_t dxpl_id)
{
H5D_obj_create_t *crt_info = (H5D_obj_create_t *)_crt_info; /* Dataset creation parameters */
H5D_t *dset = NULL; /* New dataset created */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_dset_create)
/* Sanity checks */
HDassert(f);
HDassert(crt_info);
HDassert(obj_loc);
/* Create the the dqtaset */
if(NULL == (dset = H5D_create(f, crt_info->type_id, crt_info->space, crt_info->dcpl_id, dxpl_id)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to create dataset")
/* Set up the new dataset's location */
if(NULL == (obj_loc->oloc = H5D_oloc(dset)))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "unable to get object location of dataset")
if(NULL == (obj_loc->path = H5D_nameof(dset)))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "unable to get path of dataset")
/* Set the return value */
ret_value = dset;
done:
if(ret_value == NULL)
if(dset && H5D_close(dset) < 0)
HDONE_ERROR(H5E_DATASET, H5E_CLOSEERROR, NULL, "unable to release dataset")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_dset_create() */
/*-------------------------------------------------------------------------
* Function: H5O_dset_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_dset_get_oloc(hid_t obj_id)
{
H5D_t *dset; /* Dataset opened */
H5O_loc_t *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_dset_get_oloc)
/* Get the dataset */
if(NULL == (dset = H5I_object(obj_id)))
HGOTO_ERROR(H5E_OHDR, H5E_BADATOM, NULL, "couldn't get object from ID")
/* Get the dataset's object header location */
if(NULL == (ret_value = H5D_oloc(dset)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get object location from object")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_dset_get_oloc() */
/*-------------------------------------------------------------------------
* Function: H5O_dset_bh_info
*
* Purpose: Returns the amount of btree storage that is used for chunked
* dataset.
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Vailin Choi
* July 11, 2007
*
*-------------------------------------------------------------------------
*/
herr_t
H5O_dset_bh_info(H5O_loc_t *oloc, H5O_t *oh, hid_t dxpl_id, H5_ih_info_t *bh_info)
{
H5O_layout_t layout; /* Data storage layout message */
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5O_dset_bh_info, FAIL)
/* Sanity check */
HDassert(oloc);
HDassert(oh);
HDassert(bh_info);
if (NULL==H5O_msg_read_real(oloc->file, dxpl_id, oh, H5O_LAYOUT_ID, &layout))
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't find LAYOUT message")
else {
if ((layout.type == H5D_CHUNKED) && (layout.u.chunk.addr != HADDR_UNDEF)) {
ret_value = H5D_obj_istore_bh_info(oloc, &layout, dxpl_id, &(bh_info->index_size));
if (ret_value < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't determine chunked dataset btree info")
}
}
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_dset_bh_info() */
|
