summaryrefslogtreecommitdiffstats
path: root/tools/lib/h5diff_attr.c
blob: c5966da1a7be91fbbe7bc96d6ca4a2f9b68e0a11 (plain)
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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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 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.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "H5private.h"
#include "h5tools.h"
#include "h5tools_utils.h"
#include "h5diff.h"

#define ATTR_NAME_MAX 255

typedef struct table_attr_t {
    char *   name;
    unsigned exist[2];
} match_attr_t;

typedef struct table_attrs_t {
    size_t        size;
    size_t        nattrs;
    size_t        nattrs_only1;
    size_t        nattrs_only2;
    match_attr_t *attrs;
} table_attrs_t;

/*-------------------------------------------------------------------------
 * Function: table_attrs_init
 *
 * Purpose: Initialize the table
 *
 * Parameter:
 *  - tbl [OUT]
 *
 * Programmer: Jonathan Kim
 *
 * Date: March 15, 2011
 *------------------------------------------------------------------------*/
static void
table_attrs_init(table_attrs_t **tbl)
{
    table_attrs_t *table_attrs = (table_attrs_t *)HDmalloc(sizeof(table_attrs_t));

    table_attrs->size         = 0;
    table_attrs->nattrs       = 0;
    table_attrs->nattrs_only1 = 0;
    table_attrs->nattrs_only2 = 0;
    table_attrs->attrs        = NULL;

    *tbl = table_attrs;
}

/*-------------------------------------------------------------------------
 * Function: table_attrs_free
 *
 * Purpose: free given table
 *
 * Parameter:
 *  - table [IN]
 *
 * Programmer: Jonathan Kim
 *
 * Date: March 15, 2011
 *------------------------------------------------------------------------*/
static void
table_attrs_free(table_attrs_t *table)
{
    unsigned int i;

    if (table) {
        if (table->attrs) {
            for (i = 0; i < table->nattrs; i++) {
                if (table->attrs[i].name) {
                    HDfree(table->attrs[i].name);
                }
            } /* end for */
            HDfree(table->attrs);
            table->attrs = NULL;
        } /* end if */
        HDfree(table);
        table = NULL;
    }
}

/*-------------------------------------------------------------------------
 * Function: table_attr_mark_exist
 *
 * Purpose: mark given attribute name to table as sign of exist
 *
 * Parameter:
 *  - exist [IN]
 *  - name [IN]  : attribute name
 *  - table [OUT]
 *
 * Programmer: Jonathan Kim
 *
 * Date: March 15, 2011
 *------------------------------------------------------------------------*/
static void
table_attr_mark_exist(unsigned *exist, char *name, table_attrs_t *table)
{
    if (table->nattrs == table->size) {
        match_attr_t *new_attrs;

        table->size = MAX(1, table->size * 2);
        new_attrs   = (match_attr_t *)HDrealloc(table->attrs, table->size * sizeof(match_attr_t));
        if (new_attrs)
            table->attrs = new_attrs;
    } /* end if */

    if (table->nattrs < table->size) {
        size_t curr_val;

        curr_val                        = table->nattrs;
        table->attrs[curr_val].exist[0] = exist[0];
        table->attrs[curr_val].exist[1] = exist[1];
        if (name)
            table->attrs[curr_val].name = (char *)HDstrdup(name);
        table->nattrs++;
    }
}

/*-------------------------------------------------------------------------
 * Function: build_match_list_attrs
 *
 * Purpose: get list of matching attribute name from obj1 and obj2
 *
 * Note:
 *  Find common attribute; the algorithm for search is referred from
 *  build_match_list() in h5diff.c .
 *
 * Parameter:
 *  table_out [OUT] : return the list
 *------------------------------------------------------------------------*/
static herr_t
build_match_list_attrs(hid_t loc1_id, hid_t loc2_id, table_attrs_t **table_out, diff_opt_t *opts)
{
    table_attrs_t *table_lp = NULL;
    H5O_info2_t    oinfo1, oinfo2;             /* Object info */
    hid_t          attr1_id = H5I_INVALID_HID; /* attr ID */
    hid_t          attr2_id = H5I_INVALID_HID; /* attr ID */
    size_t         curr1    = 0;
    size_t         curr2    = 0;
    unsigned       infile[2];
    char           name1[ATTR_NAME_MAX];
    char           name2[ATTR_NAME_MAX];
    int            cmp;
    unsigned       i;
    herr_t         ret_value = SUCCEED;

    H5TOOLS_START_DEBUG(" - errstat:%d", opts->err_stat);

    if (H5Oget_info3(loc1_id, &oinfo1, H5O_INFO_NUM_ATTRS) < 0) {
        H5TOOLS_GOTO_ERROR(FAIL, "H5Oget_info first object failed");
    }
    H5TOOLS_DEBUG("H5Oget_info3 loc1id=%d", oinfo1.num_attrs);
    if (H5Oget_info3(loc2_id, &oinfo2, H5O_INFO_NUM_ATTRS) < 0) {
        H5TOOLS_GOTO_ERROR(FAIL, "H5Oget_info second object failed");
    }
    H5TOOLS_DEBUG("H5Oget_info3 loc2id=%d", oinfo2.num_attrs);

    table_attrs_init(&table_lp);
    if (table_lp == NULL)
        H5TOOLS_GOTO_ERROR(FAIL, "Table allocation failed");

    /*--------------------------------------------------
     * build the list
     */
    while (curr1 < oinfo1.num_attrs && curr2 < oinfo2.num_attrs) {
        H5TOOLS_DEBUG("list_attrs 1: %ld - %ld", curr1, oinfo1.num_attrs);
        H5TOOLS_DEBUG("list_attrs 2: %ld - %ld", curr2, oinfo2.num_attrs);

        /*------------------
         * open attribute1 */
        if ((attr1_id = H5Aopen_by_idx(loc1_id, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)curr1, H5P_DEFAULT,
                                       H5P_DEFAULT)) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aopen_by_idx first attribute failed");
        /* get name */
        if (H5Aget_name(attr1_id, (size_t)ATTR_NAME_MAX, name1) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aget_name first attribute failed");

        /*------------------
         * open attribute2 */
        if ((attr2_id = H5Aopen_by_idx(loc2_id, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)curr2, H5P_DEFAULT,
                                       H5P_DEFAULT)) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aopen_by_idx second attribute failed");
        /* get name */
        if (H5Aget_name(attr2_id, (size_t)ATTR_NAME_MAX, name2) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aget_name second attribute failed");

        /* criteria is string compare */
        cmp = HDstrcmp(name1, name2);

        if (cmp == 0) {
            infile[0] = 1;
            infile[1] = 1;
            table_attr_mark_exist(infile, name1, table_lp);
            curr1++;
            curr2++;
        }
        else if (cmp < 0) {
            infile[0] = 1;
            infile[1] = 0;
            table_attr_mark_exist(infile, name1, table_lp);
            table_lp->nattrs_only1++;
            curr1++;
        }
        else {
            infile[0] = 0;
            infile[1] = 1;
            table_attr_mark_exist(infile, name2, table_lp);
            table_lp->nattrs_only2++;
            curr2++;
        }

        /* close for next turn */
        H5Aclose(attr1_id);
        attr1_id = H5I_INVALID_HID;
        H5Aclose(attr2_id);
        attr2_id = H5I_INVALID_HID;
    } /* end while */

    /* list1 did not end */
    infile[0] = 1;
    infile[1] = 0;
    while (curr1 < oinfo1.num_attrs) {
        H5TOOLS_DEBUG("list_attrs 1: %ld - %ld", curr1, oinfo1.num_attrs);

        /*------------------
         * open attribute1 */
        if ((attr1_id = H5Aopen_by_idx(loc1_id, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)curr1, H5P_DEFAULT,
                                       H5P_DEFAULT)) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aopen_by_idx first attribute failed");
        /* get name */
        if (H5Aget_name(attr1_id, (size_t)ATTR_NAME_MAX, name1) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aget_name first attribute failed");
        H5TOOLS_DEBUG("list_attrs 1 name - %s", name1);

        table_attr_mark_exist(infile, name1, table_lp);
        table_lp->nattrs_only1++;
        curr1++;

        /* close for next turn */
        H5Aclose(attr1_id);
        attr1_id = H5I_INVALID_HID;
    }

    /* list2 did not end */
    infile[0] = 0;
    infile[1] = 1;
    while (curr2 < oinfo2.num_attrs) {
        H5TOOLS_DEBUG("list_attrs 2: %ld - %ld", curr2, oinfo2.num_attrs);
        /*------------------
         * open attribute2 */
        if ((attr2_id = H5Aopen_by_idx(loc2_id, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)curr2, H5P_DEFAULT,
                                       H5P_DEFAULT)) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aopen_by_idx second attribute failed");
        /* get name */
        if (H5Aget_name(attr2_id, (size_t)ATTR_NAME_MAX, name2) < 0)
            H5TOOLS_GOTO_ERROR(FAIL, "H5Aget_name second attribute failed");
        H5TOOLS_DEBUG("list_attrs 2 name - %s", name2);

        table_attr_mark_exist(infile, name2, table_lp);
        table_lp->nattrs_only2++;
        curr2++;

        /* close for next turn */
        H5Aclose(attr2_id);
        attr2_id = H5I_INVALID_HID;
    }

    /*------------------------------------------------------
     * print the list
     */
    if (opts->mode_verbose_level == 2) {
        /* if '-v2' is detected */
        parallel_print("   obj1   obj2\n");
        parallel_print(" --------------------------------------\n");
        for (i = 0; i < (unsigned int)table_lp->nattrs; i++) {
            int c1, c2;
            c1 = (table_lp->attrs[i].exist[0]) ? 'x' : ' ';
            c2 = (table_lp->attrs[i].exist[1]) ? 'x' : ' ';
            parallel_print("%5c %6c    %-15s\n", c1, c2, table_lp->attrs[i].name);
        } /* end for */
    }

    if (opts->mode_verbose_level >= 1)
        parallel_print("Attributes status:  %d common, %d only in obj1, %d only in obj2\n",
                       table_lp->nattrs - table_lp->nattrs_only1 - table_lp->nattrs_only2,
                       table_lp->nattrs_only1, table_lp->nattrs_only2);

done:
    *table_out = table_lp;

    /* disable error reporting */
    H5E_BEGIN_TRY
    {
        H5Aclose(attr1_id);
        H5Aclose(attr2_id);
    }
    H5E_END_TRY;

    H5TOOLS_ENDDEBUG(" - errstat:%d", opts->err_stat);

    return ret_value;
}

/*-------------------------------------------------------------------------
 * Function: diff_attr_data
 *
 * Purpose:  compare attribute data located in attr1_id and attr2_id, which are
 *           obtained from open attributes
 *
 * Return:   number of differences found
 *-------------------------------------------------------------------------
 */

hsize_t
diff_attr_data(hid_t attr1_id, hid_t attr2_id, const char *name1, const char *name2, const char *path1,
               const char *path2, diff_opt_t *opts)
{
    hid_t      space1_id = H5I_INVALID_HID; /* space ID */
    hid_t      space2_id = H5I_INVALID_HID; /* space ID */
    hid_t      ftype1_id = H5I_INVALID_HID; /* file data type ID */
    hid_t      ftype2_id = H5I_INVALID_HID; /* file data type ID */
    hid_t      mtype1_id = H5I_INVALID_HID; /* memory data type ID */
    hid_t      mtype2_id = H5I_INVALID_HID; /* memory data type ID */
    size_t     msize1;                      /* memory size of memory type */
    size_t     msize2;                      /* memory size of memory type */
    void *     buf1        = NULL;          /* data buffer */
    void *     buf2        = NULL;          /* data buffer */
    hbool_t    buf1hasdata = FALSE;         /* buffer has data */
    hbool_t    buf2hasdata = FALSE;         /* buffer has data */
    int        rank1;                       /* rank of dataset */
    int        rank2;                       /* rank of dataset */
    hsize_t    dims1[H5S_MAX_RANK];         /* dimensions of dataset */
    hsize_t    dims2[H5S_MAX_RANK];         /* dimensions of dataset */
    hsize_t    nfound = 0;
    size_t     sz;
    diff_err_t ret_value = opts->err_stat;

    H5TOOLS_START_DEBUG(" - errstat:%d", opts->err_stat);
    /* get the datatypes  */
    if ((ftype1_id = H5Aget_type(attr1_id)) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type first attribute failed");
    if ((ftype2_id = H5Aget_type(attr2_id)) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type second attribute failed");

    if (H5Tget_class(ftype1_id) == H5T_REFERENCE) {
        if ((mtype1_id = H5Tcopy(H5T_STD_REF)) < 0)
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tcopy(H5T_STD_REF) first attribute ftype failed");
    }
    else {
        if ((mtype1_id = H5Tget_native_type(ftype1_id, H5T_DIR_DEFAULT)) < 0)
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tget_native_type first attribute ftype failed");
    }
    if (H5Tget_class(ftype2_id) == H5T_REFERENCE) {
        if ((mtype2_id = H5Tcopy(H5T_STD_REF)) < 0)
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tcopy(H5T_STD_REF) second attribute ftype failed");
    }
    else {
        if ((mtype2_id = H5Tget_native_type(ftype2_id, H5T_DIR_DEFAULT)) < 0)
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tget_native_type second attribute ftype failed");
    }
    if ((msize1 = H5Tget_size(mtype1_id)) == 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tget_size first attribute mtype failed");
    if ((msize2 = H5Tget_size(mtype2_id)) == 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tget_size second attribute mtype failed");

    /* get the dataspace   */
    if ((space1_id = H5Aget_space(attr1_id)) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_space first attribute failed");
    if ((space2_id = H5Aget_space(attr2_id)) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_space second attribute failed");

    /* get dimensions  */
    if ((rank1 = H5Sget_simple_extent_dims(space1_id, dims1, NULL)) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Sget_simple_extent_dims first attribute failed");
    if ((rank2 = H5Sget_simple_extent_dims(space2_id, dims2, NULL)) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Sget_simple_extent_dims second attribute failed");

    /*----------------------------------------------------------------------
     * check for comparable TYPE and SPACE
     *----------------------------------------------------------------------
     */
    H5TOOLS_DEBUG("Check for comparable TYPE and SPACE");

    H5TOOLS_DEBUG("attr_names: %s - %s", name1, name2);
    if (name1) {
        sz = HDstrlen(name1);
        H5TOOLS_DEBUG("attr1_name: %s - %d", name1, sz);
        if (sz > 0) {
            opts->obj_name[0] = (char *)HDmalloc(sz + 1);
            HDstrncpy(opts->obj_name[0], name1, sz + 1);
        }
    }
    if (name2) {
        sz = HDstrlen(name2);
        H5TOOLS_DEBUG("attr2_name: %s - %d", name2, sz);
        if (sz > 0) {
            opts->obj_name[1] = (char *)HDmalloc(sz + 1);
            HDstrncpy(opts->obj_name[1], name2, sz + 1);
        }
    }
    H5TOOLS_DEBUG("attr_names: %s - %s", opts->obj_name[0], opts->obj_name[1]);

    /* pass dims1 and dims2 for maxdims as well since attribute's maxdims
     * are always same */
    if (diff_can_type(ftype1_id, ftype2_id, rank1, rank2, dims1, dims2, dims1, dims2, opts, 0) == 1) {

        int j;

        /*-----------------------------------------------------------------
         * "upgrade" the smaller memory size
         *------------------------------------------------------------------
         */
        if (FAIL == match_up_memsize(ftype1_id, ftype2_id, &mtype1_id, &mtype2_id, &msize1, &msize2))
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "match_up_memsize failed");

        H5TOOLS_DEBUG("initialize read");
        /*---------------------------------------------------------------------
         * initialize diff_opt_t structure for dimensions
         *----------------------------------------------------------------------
         */
        opts->nelmts = 1;
        for (j = 0; j < rank1; j++) {
            opts->dims[j] = dims1[j];
            opts->nelmts *= dims1[j];
        }
        opts->rank = rank1;
        init_acc_pos((unsigned)opts->rank, opts->dims, opts->acc, opts->pos, opts->p_min_idx);

        /*---------------------------------------------------------------------
         * read
         *----------------------------------------------------------------------
         */
        buf1 = (void *)HDcalloc((size_t)(opts->nelmts), msize1);
        buf2 = (void *)HDcalloc((size_t)(opts->nelmts), msize2);
        H5TOOLS_DEBUG("attr buffer size %ld * %ld", opts->nelmts, msize1);
        if (buf1 == NULL || buf2 == NULL) {
            parallel_print("cannot read into memory\n");
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "buffer allocation failed");
        }
        if (H5Aread(attr1_id, mtype1_id, buf1) < 0) {
            parallel_print("Failed reading attribute1 %s\n", name1);
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type first attribute failed");
        }
        else
            buf1hasdata = TRUE;
        H5TOOLS_DEBUG("attr H5Aread 1");

        if (H5Aread(attr2_id, mtype2_id, buf2) < 0) {
            parallel_print("Failed reading attribute2 %s\n", name2);
            H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type second attribute failed");
        }
        else
            buf2hasdata = TRUE;
        H5TOOLS_DEBUG("attr H5Aread 2");

        /* format output string */
        if (opts->obj_name[0] != NULL)
            HDfree(opts->obj_name[0]);
        opts->obj_name[0] = NULL;
        if (opts->obj_name[1] != NULL)
            HDfree(opts->obj_name[1]);
        opts->obj_name[1] = NULL;

        H5TOOLS_DEBUG("attr_names: %s - %s : %s - %s", name1, name2, path1, path2);
        if (name1) {
            sz = HDstrlen(name1) + HDstrlen(path1) + 7;
            H5TOOLS_DEBUG("attr1_name: %s - %d", name1, sz);
            opts->obj_name[0] = (char *)HDcalloc(sz + 1, sizeof(char));
            HDsnprintf(opts->obj_name[0], sz, "%s of <%s>", name1, path1);
            opts->obj_name[0][sz] = '\0';
        }
        if (name2) {
            sz = HDstrlen(name2) + HDstrlen(path2) + 7;
            H5TOOLS_DEBUG("attr2_name: %s - %d", name2, sz);
            opts->obj_name[1] = (char *)HDcalloc(sz + 1, sizeof(char));
            HDsnprintf(opts->obj_name[1], sz, "%s of <%s>", name2, path2);
            opts->obj_name[1][sz] = '\0';
        }

        /*---------------------------------------------------------------------
         * array compare
         *----------------------------------------------------------------------
         */
        H5TOOLS_DEBUG("array compare %s - %s", opts->obj_name[0], opts->obj_name[1]);

        opts->hs_nelmts = opts->nelmts;
        opts->m_tid     = mtype1_id;

        /* initialize the current stripmine position; this is necessary to print the array indices */
        for (j = 0; j < opts->rank; j++)
            opts->sm_pos[j] = (hsize_t)0;

        /* always print name */
        /* verbose (-v) and report (-r) mode */
        if (opts->mode_verbose || opts->mode_report) {
            do_print_attrname("attribute", opts->obj_name[0], opts->obj_name[1]);

            nfound = diff_array(buf1, buf2, opts, attr1_id, attr2_id);
            print_found(nfound);
        }
        /* quiet mode (-q), just count differences */
        else if (opts->mode_quiet) {
            nfound = diff_array(buf1, buf2, opts, attr1_id, attr2_id);
        }
        /* the rest (-c, none, ...) */
        else {
            nfound = diff_array(buf1, buf2, opts, attr1_id, attr2_id);

            /* print info if compatible and difference found */
            if (nfound) {
                do_print_attrname("attribute", opts->obj_name[0], opts->obj_name[1]);
                print_found(nfound);
            } /* end if */
        }     /* end else */
    }
    H5TOOLS_DEBUG("check for comparable TYPE and SPACE complete nfound:%d - errstat:%d", nfound,
                  opts->err_stat);

    /*----------------------------------------------------------------------
     * close
     *----------------------------------------------------------------------
     */
    if (opts->obj_name[0] != NULL)
        HDfree(opts->obj_name[0]);
    opts->obj_name[0] = NULL;
    if (opts->obj_name[1] != NULL)
        HDfree(opts->obj_name[1]);
    opts->obj_name[1] = NULL;

    /* Free buf1 and buf2, check both VLEN-data VLEN-string to reclaim any
     * VLEN memory first */
    if (TRUE == h5tools_detect_vlen(mtype1_id))
        H5Treclaim(mtype1_id, space1_id, H5P_DEFAULT, buf1);
    HDfree(buf1);
    buf1 = NULL;

    if (TRUE == h5tools_detect_vlen(mtype2_id))
        H5Treclaim(mtype2_id, space2_id, H5P_DEFAULT, buf2);
    HDfree(buf2);
    buf2 = NULL;

    if (H5Tclose(ftype1_id) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type first attribute failed");
    if (H5Tclose(ftype2_id) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type second attribute failed");
    if (H5Sclose(space1_id) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type first attribute failed");
    if (H5Sclose(space2_id) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type second attribute failed");
    if (H5Tclose(mtype1_id) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tclose first attribute mtype failed");
    if (H5Tclose(mtype2_id) < 0)
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Tclose second attribute mtype failed");

done:
    opts->err_stat = opts->err_stat | ret_value;

    H5E_BEGIN_TRY
    {
        if (buf1) {
            if (buf1hasdata && TRUE == h5tools_detect_vlen(mtype1_id))
                H5Treclaim(mtype1_id, space1_id, H5P_DEFAULT, buf1);
            HDfree(buf1);
        } /* end if */
        if (buf2) {
            if (buf2hasdata && TRUE == h5tools_detect_vlen(mtype2_id))
                H5Treclaim(mtype2_id, space2_id, H5P_DEFAULT, buf2);
            HDfree(buf2);
        } /* end if */

        H5Tclose(ftype1_id);
        H5Tclose(ftype2_id);
        H5Tclose(mtype1_id);
        H5Tclose(mtype2_id);
        H5Sclose(space1_id);
        H5Sclose(space2_id);
    }
    H5E_END_TRY;

    H5TOOLS_ENDDEBUG(" - errstat:%d", opts->err_stat);

    return nfound;
}

/*-------------------------------------------------------------------------
 * Function: diff_attr
 *
 * Purpose:  compare attributes located in LOC1_ID and LOC2_ID, which are
 *           obtained either from
 *               loc_id = H5Gopen2(fid, name, H5P_DEFAULT);
 *               loc_id = H5Dopen2(fid, name);
 *               loc_id = H5Topen2(fid, name, H5P_DEFAULT);
 *
 * Return:   number of differences found
 *-------------------------------------------------------------------------
 */

hsize_t
diff_attr(hid_t loc1_id, hid_t loc2_id, const char *path1, const char *path2, diff_opt_t *opts)
{
    table_attrs_t *match_list_attrs = NULL;
    hid_t          attr1_id         = H5I_INVALID_HID; /* attr ID */
    hid_t          attr2_id         = H5I_INVALID_HID; /* attr ID */
    char *         name1            = NULL;
    char *         name2            = NULL;
    unsigned       u; /* Local index variable */
    hsize_t        nfound       = 0;
    hsize_t        nfound_total = 0;
    diff_opt_t     attr_opts;
    diff_err_t     ret_value = opts->err_stat;

    H5TOOLS_START_DEBUG(" - errstat:%d", opts->err_stat);
    attr_opts             = *opts;
    attr_opts.obj_name[0] = NULL;
    attr_opts.obj_name[1] = NULL;

    if (build_match_list_attrs(loc1_id, loc2_id, &match_list_attrs, &attr_opts) < 0) {
        H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "build_match_list_attrs failed");
    }
    H5TOOLS_DEBUG("check match_list_attrs - opts->contents:%d - errstat:%d", attr_opts.contents,
                  attr_opts.err_stat);

    /* if detect any unique extra attr */
    if (match_list_attrs->nattrs_only1 || match_list_attrs->nattrs_only2) {
        H5TOOLS_DEBUG("attributes only in one file");
        /* exit will be 1 */
        attr_opts.contents = 0;
    }
    H5TOOLS_DEBUG("match_list_attrs info - opts->contents:%d", attr_opts.contents);

    for (u = 0; u < (unsigned)match_list_attrs->nattrs; u++) {
        H5TOOLS_DEBUG("match_list_attrs loop[%d] - errstat:%d", u, attr_opts.err_stat);
        if ((match_list_attrs->attrs[u].exist[0]) && (match_list_attrs->attrs[u].exist[1])) {
            name1 = name2 = match_list_attrs->attrs[u].name;
            H5TOOLS_DEBUG("name - %s", name1);

            /*--------------
             * attribute 1 */
            if ((attr1_id = H5Aopen(loc1_id, name1, H5P_DEFAULT)) < 0)
                H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aopen first attribute failed");

            /*--------------
             * attribute 2 */
            if ((attr2_id = H5Aopen(loc2_id, name2, H5P_DEFAULT)) < 0)
                H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aopen second attribute failed");

            H5TOOLS_DEBUG("got attributes");
            nfound = diff_attr_data(attr1_id, attr2_id, name1, name2, path1, path2, &attr_opts);
            if (H5Aclose(attr1_id) < 0)
                H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type first attribute failed");
            if (H5Aclose(attr2_id) < 0)
                H5TOOLS_GOTO_ERROR(H5DIFF_ERR, "H5Aget_type second attribute failed");

            nfound_total += nfound;
        }
    } /* u */

done:
    opts->print_header = attr_opts.print_header;
    opts->contents     = attr_opts.contents;
    opts->not_cmp      = attr_opts.not_cmp;
    opts->err_stat     = attr_opts.err_stat | ret_value;

    H5E_BEGIN_TRY
    {
        table_attrs_free(match_list_attrs);

        H5Aclose(attr1_id);
        H5Aclose(attr2_id);
    }
    H5E_END_TRY;

    H5TOOLS_ENDDEBUG(" - errstat:%d", opts->err_stat);
    return nfound_total;
}