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
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5FA.c
*
* Purpose: Implements a Fixed Array for storing elements
* of datasets with fixed dimensions.
*
*-------------------------------------------------------------------------
*/
/**********************/
/* Module Declaration */
/**********************/
#include "H5FAmodule.h" /* This source code file is part of the H5FA module */
/***********************/
/* Other Packages Used */
/***********************/
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FApkg.h" /* Fixed Arrays */
#include "H5FLprivate.h" /* Free Lists */
#include "H5MMprivate.h" /* Memory management */
#include "H5VMprivate.h" /* Vector functions */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
static H5FA_t *H5FA__new(H5F_t *f, haddr_t fa_addr, hbool_t from_open, void *ctx_udata);
/*********************/
/* Package Variables */
/*********************/
/* Fixed array client ID to class mapping */
/* Remember to add client ID to H5FA_cls_id_t in H5FAprivate.h when adding a new
* client class..
*/
const H5FA_class_t *const H5FA_client_class_g[] = {
H5FA_CLS_CHUNK, /* 0 - H5FA_CLS_CHUNK_ID */
H5FA_CLS_FILT_CHUNK, /* 1 - H5FA_CLS_FILT_CHUNK_ID */
H5FA_CLS_TEST, /* ? - H5FA_CLS_TEST_ID */
};
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage the H5FA_t struct */
H5FL_DEFINE_STATIC(H5FA_t);
/* Declare a PQ free list to manage the element */
H5FL_BLK_DEFINE(fa_native_elmt);
/*-------------------------------------------------------------------------
* Function: H5FA__new
*
* Purpose: Allocate and initialize a new fixed array wrapper in memory
*
* Return: Pointer to farray wrapper success
* NULL on failure
*
*-------------------------------------------------------------------------
*/
static H5FA_t *
H5FA__new(H5F_t *f, haddr_t fa_addr, hbool_t from_open, void *ctx_udata)
{
H5FA_t *fa = NULL; /* Pointer to new fixed array */
H5FA_hdr_t *hdr = NULL; /* The fixed array header information */
H5FA_t *ret_value = NULL;
FUNC_ENTER_PACKAGE
/* Check arguments */
assert(f);
assert(H5F_addr_defined(fa_addr));
/* Allocate fixed array wrapper */
if (NULL == (fa = H5FL_CALLOC(H5FA_t)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTALLOC, NULL, "memory allocation failed for fixed array info")
/* Lock the array header into memory */
if (NULL == (hdr = H5FA__hdr_protect(f, fa_addr, ctx_udata, H5AC__READ_ONLY_FLAG)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTPROTECT, NULL, "unable to load fixed array header")
/* Check for pending array deletion */
if (from_open && hdr->pending_delete)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTOPENOBJ, NULL, "can't open fixed array pending deletion")
/* Point fixed array wrapper at header and bump it's ref count */
fa->hdr = hdr;
if (H5FA__hdr_incr(fa->hdr) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTINC, NULL, "can't increment reference count on shared array header")
/* Increment # of files using this array header */
if (H5FA__hdr_fuse_incr(fa->hdr) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTINC, NULL,
"can't increment file reference count on shared array header")
/* Set file pointer for this array open context */
fa->f = f;
/* Set the return value */
ret_value = fa;
done:
if (hdr && H5FA__hdr_unprotect(hdr, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTUNPROTECT, NULL, "unable to release fixed array header")
if (!ret_value)
if (fa && H5FA_close(fa) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CLOSEERROR, NULL, "unable to close fixed array")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA__new() */
/*-------------------------------------------------------------------------
* Function: H5FA_create
*
* Purpose: Creates a new fixed array (header) in the file.
*
* Return: Pointer to fixed array wrapper on success
* NULL on failure
*
*-------------------------------------------------------------------------
*/
H5FA_t *
H5FA_create(H5F_t *f, const H5FA_create_t *cparam, void *ctx_udata)
{
H5FA_t *fa = NULL; /* Pointer to new fixed array */
haddr_t fa_addr; /* Fixed array header address */
H5FA_t *ret_value = NULL;
FUNC_ENTER_NOAPI(NULL)
/* Check arguments */
assert(f);
assert(cparam);
/* H5FA interface sanity check */
HDcompile_assert(H5FA_NUM_CLS_ID == NELMTS(H5FA_client_class_g));
/* Create fixed array header */
if (HADDR_UNDEF == (fa_addr = H5FA__hdr_create(f, cparam, ctx_udata)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTINIT, NULL, "can't create fixed array header")
/* Allocate and initialize new fixed array wrapper */
if (NULL == (fa = H5FA__new(f, fa_addr, FALSE, ctx_udata)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTINIT, NULL,
"allocation and/or initialization failed for fixed array wrapper")
/* Set the return value */
ret_value = fa;
done:
if (!ret_value)
if (fa && H5FA_close(fa) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CLOSEERROR, NULL, "unable to close fixed array")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_create() */
/*-------------------------------------------------------------------------
* Function: H5FA_open
*
* Purpose: Opens an existing fixed array in the file.
*
* Return: Pointer to array wrapper on success
* NULL on failure
*
*-------------------------------------------------------------------------
*/
H5FA_t *
H5FA_open(H5F_t *f, haddr_t fa_addr, void *ctx_udata)
{
H5FA_t *fa = NULL; /* Pointer to new fixed array wrapper */
H5FA_t *ret_value = NULL;
FUNC_ENTER_NOAPI(NULL)
/* Check arguments */
assert(f);
assert(H5F_addr_defined(fa_addr));
/* Allocate and initialize new fixed array wrapper */
if (NULL == (fa = H5FA__new(f, fa_addr, TRUE, ctx_udata)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTINIT, NULL,
"allocation and/or initialization failed for fixed array wrapper")
/* Set the return value */
ret_value = fa;
done:
if (!ret_value)
if (fa && H5FA_close(fa) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CLOSEERROR, NULL, "unable to close fixed array")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_open() */
/*-------------------------------------------------------------------------
* Function: H5FA_get_nelmts
*
* Purpose: Query the current number of elements in array
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_get_nelmts(const H5FA_t *fa, hsize_t *nelmts)
{
FUNC_ENTER_NOAPI_NOERR
/* Check arguments */
assert(fa);
assert(nelmts);
/* Retrieve the current number of elements in the fixed array */
*nelmts = fa->hdr->stats.nelmts;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5FA_get_nelmts() */
/*-------------------------------------------------------------------------
* Function: H5FA_get_addr
*
* Purpose: Query the address of the array
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_get_addr(const H5FA_t *fa, haddr_t *addr)
{
FUNC_ENTER_NOAPI_NOERR
/* Check arguments */
assert(fa);
assert(fa->hdr);
assert(addr);
/* Retrieve the address of the fixed array's header */
*addr = fa->hdr->addr;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5FA_get_addr() */
/*-------------------------------------------------------------------------
* Function: H5FA_set
*
* Purpose: Set an element of a fixed array
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_set(const H5FA_t *fa, hsize_t idx, const void *elmt)
{
H5FA_hdr_t *hdr = fa->hdr; /* Header for fixed array */
H5FA_dblock_t *dblock = NULL; /* Pointer to fixed array Data block */
H5FA_dblk_page_t *dblk_page = NULL; /* Pointer to fixed array Data block page */
unsigned dblock_cache_flags = H5AC__NO_FLAGS_SET; /* Flags to unprotecting fixed array Data block */
unsigned dblk_page_cache_flags =
H5AC__NO_FLAGS_SET; /* Flags to unprotecting FIxed Array Data block page */
hbool_t hdr_dirty = FALSE; /* Whether header information changed */
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Check arguments */
assert(fa);
assert(fa->hdr);
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Check if we need to create the fixed array data block */
if (!H5F_addr_defined(hdr->dblk_addr)) {
/* Create the data block */
hdr->dblk_addr = H5FA__dblock_create(hdr, &hdr_dirty);
if (!H5F_addr_defined(hdr->dblk_addr))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTCREATE, FAIL, "unable to create fixed array data block")
}
assert(idx < hdr->cparam.nelmts);
/* Protect data block */
if (NULL == (dblock = H5FA__dblock_protect(hdr, hdr->dblk_addr, H5AC__NO_FLAGS_SET)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTPROTECT, FAIL,
"unable to protect fixed array data block, address = %llu",
(unsigned long long)hdr->dblk_addr)
/* Check for paging data block */
if (!dblock->npages) {
/* Set element in data block */
H5MM_memcpy(((uint8_t *)dblock->elmts) + (hdr->cparam.cls->nat_elmt_size * idx), elmt,
hdr->cparam.cls->nat_elmt_size);
dblock_cache_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
else { /* paging */
size_t page_idx; /* Index of page within data block */
size_t dblk_page_nelmts; /* # of elements in a data block page */
size_t elmt_idx; /* Element index within the page */
haddr_t dblk_page_addr; /* Address of data block page */
/* Compute the page & element index */
page_idx = (size_t)(idx / dblock->dblk_page_nelmts);
elmt_idx = (size_t)(idx % dblock->dblk_page_nelmts);
/* Get the address of the data block page */
dblk_page_addr =
dblock->addr + H5FA_DBLOCK_PREFIX_SIZE(dblock) + ((hsize_t)page_idx * dblock->dblk_page_size);
/* Check for using last page, to set the number of elements on the page */
if ((page_idx + 1) == dblock->npages)
dblk_page_nelmts = dblock->last_page_nelmts;
else
dblk_page_nelmts = dblock->dblk_page_nelmts;
/* Check if the page has been created yet */
if (!H5VM_bit_get(dblock->dblk_page_init, page_idx)) {
/* Create the data block page */
if (H5FA__dblk_page_create(hdr, dblk_page_addr, dblk_page_nelmts) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTCREATE, FAIL, "unable to create data block page")
/* Mark data block page as initialized in data block */
H5VM_bit_set(dblock->dblk_page_init, page_idx, TRUE);
dblock_cache_flags |= H5AC__DIRTIED_FLAG;
} /* end if */
/* Protect the data block page */
if (NULL ==
(dblk_page = H5FA__dblk_page_protect(hdr, dblk_page_addr, dblk_page_nelmts, H5AC__NO_FLAGS_SET)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTPROTECT, FAIL,
"unable to protect fixed array data block page, address = %llu",
(unsigned long long)dblk_page_addr)
/* Set the element in the data block page */
H5MM_memcpy(((uint8_t *)dblk_page->elmts) + (hdr->cparam.cls->nat_elmt_size * elmt_idx), elmt,
hdr->cparam.cls->nat_elmt_size);
dblk_page_cache_flags |= H5AC__DIRTIED_FLAG;
} /* end else */
done:
/* Check for header modified */
if (hdr_dirty)
if (H5FA__hdr_modified(hdr) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTMARKDIRTY, FAIL, "unable to mark fixed array header as modified")
/* Release resources */
if (dblock && H5FA__dblock_unprotect(dblock, dblock_cache_flags) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTUNPROTECT, FAIL, "unable to release fixed array data block")
if (dblk_page && H5FA__dblk_page_unprotect(dblk_page, dblk_page_cache_flags) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTUNPROTECT, FAIL, "unable to release fixed array data block page")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_set() */
/*-------------------------------------------------------------------------
* Function: H5FA_get
*
* Purpose: Get an element of a fixed array
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_get(const H5FA_t *fa, hsize_t idx, void *elmt)
{
H5FA_hdr_t *hdr = fa->hdr; /* Header for FA */
H5FA_dblock_t *dblock = NULL; /* Pointer to data block for FA */
H5FA_dblk_page_t *dblk_page = NULL; /* Pointer to data block page for FA */
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Check arguments */
assert(fa);
assert(fa->hdr);
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Check if the fixed array data block has been allocated on disk yet */
if (!H5F_addr_defined(hdr->dblk_addr)) {
/* Call the class's 'fill' callback */
if ((hdr->cparam.cls->fill)(elmt, (size_t)1) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTSET, FAIL, "can't set element to class's fill value")
} /* end if */
else {
/* Get the data block */
assert(H5F_addr_defined(hdr->dblk_addr));
if (NULL == (dblock = H5FA__dblock_protect(hdr, hdr->dblk_addr, H5AC__READ_ONLY_FLAG)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTPROTECT, FAIL,
"unable to protect fixed array data block, address = %llu",
(unsigned long long)hdr->dblk_addr)
/* Check for paged data block */
if (!dblock->npages)
/* Retrieve element from data block */
H5MM_memcpy(elmt, ((uint8_t *)dblock->elmts) + (hdr->cparam.cls->nat_elmt_size * idx),
hdr->cparam.cls->nat_elmt_size);
else { /* paging */
size_t page_idx; /* Index of page within data block */
/* Compute the page index */
page_idx = (size_t)(idx / dblock->dblk_page_nelmts);
/* Check if the page is defined yet */
if (!H5VM_bit_get(dblock->dblk_page_init, page_idx)) {
/* Call the class's 'fill' callback */
if ((hdr->cparam.cls->fill)(elmt, (size_t)1) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTSET, FAIL, "can't set element to class's fill value")
/* We've retrieved the value, leave now */
HGOTO_DONE(SUCCEED)
} /* end if */
else { /* get the page */
size_t dblk_page_nelmts; /* # of elements in a data block page */
size_t elmt_idx; /* Element index within the page */
haddr_t dblk_page_addr; /* Address of data block page */
/* Compute the element index */
elmt_idx = (size_t)(idx % dblock->dblk_page_nelmts);
/* Compute the address of the data block */
dblk_page_addr = dblock->addr + H5FA_DBLOCK_PREFIX_SIZE(dblock) +
((hsize_t)page_idx * dblock->dblk_page_size);
/* Check for using last page, to set the number of elements on the page */
if ((page_idx + 1) == dblock->npages)
dblk_page_nelmts = dblock->last_page_nelmts;
else
dblk_page_nelmts = dblock->dblk_page_nelmts;
/* Protect the data block page */
if (NULL == (dblk_page = H5FA__dblk_page_protect(hdr, dblk_page_addr, dblk_page_nelmts,
H5AC__READ_ONLY_FLAG)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTPROTECT, FAIL,
"unable to protect fixed array data block page, address = %llu",
(unsigned long long)dblk_page_addr)
/* Retrieve element from data block */
H5MM_memcpy(elmt, ((uint8_t *)dblk_page->elmts) + (hdr->cparam.cls->nat_elmt_size * elmt_idx),
hdr->cparam.cls->nat_elmt_size);
} /* end else */
} /* end else */
} /* end else */
done:
if (dblock && H5FA__dblock_unprotect(dblock, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTUNPROTECT, FAIL, "unable to release fixed array data block")
if (dblk_page && H5FA__dblk_page_unprotect(dblk_page, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTUNPROTECT, FAIL, "unable to release fixed array data block page")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_get() */
/*-------------------------------------------------------------------------
* Function: H5FA_close
*
* Purpose: Close a fixed array
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_close(H5FA_t *fa)
{
hbool_t pending_delete = FALSE; /* Whether the array is pending deletion */
haddr_t fa_addr = HADDR_UNDEF; /* Address of array (for deletion) */
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Check arguments */
assert(fa);
/* Close the header if it was set */
if (fa->hdr) {
/* Decrement file reference & check if this is the last open fixed array using the shared array header
*/
if (0 == H5FA__hdr_fuse_decr(fa->hdr)) {
/* Set the shared array header's file context for this operation */
fa->hdr->f = fa->f;
/* Shut down anything that can't be put in the header's 'flush' callback */
/* Check for pending array deletion */
if (fa->hdr->pending_delete) {
/* Set local info, so array deletion can occur after decrementing the
* header's ref count
*/
pending_delete = TRUE;
fa_addr = fa->hdr->addr;
} /* end if */
} /* end if */
/* Check for pending array deletion */
if (pending_delete) {
H5FA_hdr_t *hdr; /* Another pointer to fixed array header */
#ifndef NDEBUG
{
unsigned hdr_status = 0; /* Header's status in the metadata cache */
/* Check the header's status in the metadata cache */
if (H5AC_get_entry_status(fa->f, fa_addr, &hdr_status) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTGET, FAIL,
"unable to check metadata cache status for fixed array header")
/* Sanity checks on header */
assert(hdr_status & H5AC_ES__IN_CACHE);
assert(hdr_status & H5AC_ES__IS_PINNED);
assert(!(hdr_status & H5AC_ES__IS_PROTECTED));
}
#endif /* NDEBUG */
/* Lock the array header into memory */
/* (OK to pass in NULL for callback context, since we know the header must be in the cache) */
if (NULL == (hdr = H5FA__hdr_protect(fa->f, fa_addr, NULL, H5AC__NO_FLAGS_SET)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTLOAD, FAIL, "unable to load fixed array header")
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Decrement the reference count on the array header */
/* (don't put in H5FA_hdr_fuse_decr() as the array header may be evicted
* immediately -QAK)
*/
if (H5FA__hdr_decr(fa->hdr) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTDEC, FAIL,
"can't decrement reference count on shared array header")
/* Delete array, starting with header (unprotects header) */
if (H5FA__hdr_delete(hdr) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTDELETE, FAIL, "unable to delete fixed array")
} /* end if */
else {
/* Decrement the reference count on the array header */
/* (don't put in H5FA_hdr_fuse_decr() as the array header may be evicted
* immediately -QAK)
*/
if (H5FA__hdr_decr(fa->hdr) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTDEC, FAIL,
"can't decrement reference count on shared array header")
} /* end else */
} /* end if */
/* Release the fixed array wrapper */
fa = H5FL_FREE(H5FA_t, fa);
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_close() */
/*-------------------------------------------------------------------------
* Function: H5FA_delete
*
* Purpose: Delete a fixed array
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_delete(H5F_t *f, haddr_t fa_addr, void *ctx_udata)
{
H5FA_hdr_t *hdr = NULL; /* The fixed array header information */
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Check arguments */
assert(f);
assert(H5F_addr_defined(fa_addr));
/* Lock the array header into memory */
if (NULL == (hdr = H5FA__hdr_protect(f, fa_addr, ctx_udata, H5AC__NO_FLAGS_SET)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTPROTECT, FAIL, "unable to protect fixed array header, address = %llu",
(unsigned long long)fa_addr)
/* Check for files using shared array header */
if (hdr->file_rc)
hdr->pending_delete = TRUE;
else {
/* Set the shared array header's file context for this operation */
hdr->f = f;
/* Delete array now, starting with header (unprotects header) */
if (H5FA__hdr_delete(hdr) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTDELETE, FAIL, "unable to delete fixed array")
hdr = NULL;
}
done:
/* Unprotect the header if an error occurred */
if (hdr && H5FA__hdr_unprotect(hdr, H5AC__NO_FLAGS_SET) < 0)
HDONE_ERROR(H5E_FARRAY, H5E_CANTUNPROTECT, FAIL, "unable to release fixed array header")
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_delete() */
/*-------------------------------------------------------------------------
* Function: H5FA_iterate
*
* Purpose: Iterate over the elements of a fixed array
*
* Note: This is not very efficient, we should be iterating directly
* over the fixed array's direct block [pages].
*
* Return: H5_ITER_CONT/H5_ITER_ERROR
*
*-------------------------------------------------------------------------
*/
int
H5FA_iterate(H5FA_t *fa, H5FA_operator_t op, void *udata)
{
uint8_t *elmt = NULL;
hsize_t u;
int ret_value = H5_ITER_CONT;
FUNC_ENTER_NOAPI(H5_ITER_ERROR)
/* Check arguments */
assert(fa);
assert(op);
assert(udata);
/* Allocate space for a native array element */
if (NULL == (elmt = H5FL_BLK_MALLOC(fa_native_elmt, fa->hdr->cparam.cls->nat_elmt_size)))
HGOTO_ERROR(H5E_FARRAY, H5E_CANTALLOC, H5_ITER_ERROR,
"memory allocation failed for fixed array element")
/* Iterate over all elements in array */
for (u = 0; u < fa->hdr->stats.nelmts && ret_value == H5_ITER_CONT; u++) {
/* Get array element */
if (H5FA_get(fa, u, elmt) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTGET, H5_ITER_ERROR, "unable to delete fixed array")
/* Invoke callback */
if ((ret_value = (*op)(u, elmt, udata)) < 0) {
HERROR(H5E_FARRAY, H5E_BADITER, "iteration callback error");
break;
}
}
done:
if (elmt)
elmt = H5FL_BLK_FREE(fa_native_elmt, elmt);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_iterate() */
/*-------------------------------------------------------------------------
* Function: H5FA_depend
*
* Purpose: Make a child flush dependency between the fixed array
* and another piece of metadata in the file.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_depend(H5FA_t *fa, H5AC_proxy_entry_t *parent)
{
H5FA_hdr_t *hdr = fa->hdr; /* Header for FA */
herr_t ret_value = SUCCEED;
FUNC_ENTER_NOAPI(FAIL)
/* Check arguments */
assert(fa);
assert(hdr);
assert(parent);
/*
* Check to see if a flush dependency between the fixed array
* and another data structure in the file has already been set up.
* If it hasn't, do so now.
*/
if (NULL == hdr->parent) {
/* Sanity check */
assert(hdr->top_proxy);
/* Set the shared array header's file context for this operation */
hdr->f = fa->f;
/* Add the fixed array as a child of the parent (proxy) */
if (H5AC_proxy_entry_add_child(parent, hdr->f, hdr->top_proxy) < 0)
HGOTO_ERROR(H5E_FARRAY, H5E_CANTSET, FAIL, "unable to add fixed array as child of proxy")
hdr->parent = parent;
}
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5FA_depend() */
/*-------------------------------------------------------------------------
* Function: H5FA_patch_file
*
* Purpose: Patch the top-level file pointer contained in fa
* to point to idx_info->f if they are different.
* This is possible because the file pointer in fa can be
* closed out if fa remains open.
*
* Return: SUCCEED
*
*-------------------------------------------------------------------------
*/
herr_t
H5FA_patch_file(H5FA_t *fa, H5F_t *f)
{
FUNC_ENTER_NOAPI_NOERR
/* Check arguments */
assert(fa);
assert(f);
if (fa->f != f || fa->hdr->f != f)
fa->f = fa->hdr->f = f;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5FA_patch_file() */
|