File: th5o.c

package info (click to toggle)
hdf5 1.10.0-patch1+docs-4
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 143,572 kB
  • ctags: 38,562
  • sloc: ansic: 472,614; f90: 28,734; java: 27,116; xml: 17,791; sh: 16,757; cpp: 14,937; makefile: 1,769; perl: 1,339; yacc: 338; lex: 184; ruby: 24
file content (1380 lines) | stat: -rw-r--r-- 52,060 bytes parent folder | download | duplicates (2)
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
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/***********************************************************
*
* Test program:	 th5o
*
* Test public H5O functions for accessing
*
*************************************************************/

#include "testhdf5.h"

#define TEST_FILENAME "th5o_file"

#define RANK 2
#define DIM0 5
#define DIM1 10

#define TEST6_DIM1 100
#define TEST6_DIM2 100


/****************************************************************
**
**  test_h5o_open(): Test H5Oopen function.
**
****************************************************************/
static void
test_h5o_open(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    hsize_t     dims[RANK];
    H5I_type_t  id_type;                    /* Type of IDs returned from H5Oopen */
    H5G_info_t  ginfo;                      /* Group info struct */
    H5T_class_t type_class;                 /* Class of the datatype */
    herr_t      ret;                        /* Value returned from API calls */

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create a group, dataset, and committed datatype within the file */
    /* Create the group */
    grp = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate2");
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");

    /* Commit the type inside the group */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit2(fid, "group/datatype", dtype, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit2");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create the data space for the dataset. */
    dims[0] = DIM0;
    dims[1] = DIM1;
    dspace = H5Screate_simple(RANK, dims, NULL);
    CHECK(dspace, FAIL, "H5Screate_simple");

    /* Create the dataset. */
    dset = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, dspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate2");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");

    /* Now make sure that H5Oopen can open all three types of objects */
    grp = H5Oopen(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Oopen");
    dtype = H5Oopen(fid, "group/datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Oopen");
    /* Check that we can use the group as a valid location */
    dset = H5Oopen(grp, "/dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Oopen");

    /* Make sure that each is the right kind of ID */
    id_type = H5Iget_type(grp);
    VERIFY(id_type, H5I_GROUP, "H5Iget_type for group ID");
    id_type = H5Iget_type(dtype);
    VERIFY(id_type, H5I_DATATYPE, "H5Iget_type for datatype ID");
    id_type = H5Iget_type(dset);
    VERIFY(id_type, H5I_DATASET, "H5Iget_type for dataset ID");

    /* Do something more complex with each of the IDs to make sure they "work" */
    ret = H5Gget_info(grp, &ginfo);
    CHECK(ret, FAIL, "H5Gget_info");
    VERIFY(ginfo.nlinks, 1, "H5Gget_info"); /* There should be one object, the datatype */

    type_class = H5Tget_class(dtype);
    VERIFY(type_class, H5T_INTEGER, "H5Tget_class");

    dspace = H5Dget_space(dset);
    CHECK(dspace, FAIL, "H5Dget_space");

    /* Close the IDs */
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Trying to open objects with bogus names should fail gracefully */
    H5E_BEGIN_TRY {
        grp = H5Oopen(fid, "bogus_group", H5P_DEFAULT);
        VERIFY(grp, FAIL, "H5Oopen");
        dtype = H5Oopen(fid, "group/bogus_datatype", H5P_DEFAULT);
        VERIFY(dtype, FAIL, "H5Oopen");
        dset = H5Oopen(fid, "/bogus_dataset", H5P_DEFAULT);
        VERIFY(dset, FAIL, "H5Oopen");
    } H5E_END_TRY

    /* Close the file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Trying to open an object with a bogus file ID should fail */
    H5E_BEGIN_TRY {
        dset = H5Oopen(fid, "dataset", H5P_DEFAULT);
        VERIFY(dset, FAIL, "H5Oopen");
    } H5E_END_TRY
} /* test_h5o_open() */



/****************************************************************
**
**  test_h5o_close(): Test H5Oclose function.
**
****************************************************************/
static void
test_h5o_close(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    hsize_t     dims[RANK];
    herr_t      ret;                        /* Value returned from API calls */

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create a group, dataset, and committed datatype within the file */
    /* Create the group and close it with H5Oclose */
    grp = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate2");
    VERIFY_TYPE(H5Iget_type(grp), H5I_GROUP, H5I_type_t, "%d", "H5Iget_type");
    ret = H5Oclose(grp);
    CHECK(ret, FAIL, "H5Oclose");

    /* Commit the type inside the group */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit2(fid, "group/datatype", dtype, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit2");
    ret = H5Oclose(dtype);
    CHECK(ret, FAIL, "H5Oclose");

    /* Create the data space for the dataset. */
    dims[0] = DIM0;
    dims[1] = DIM1;
    dspace = H5Screate_simple(RANK, dims, NULL);
    CHECK(dspace, FAIL, "H5Screate_simple");

    /* Create the dataset. */
    dset = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, dspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate2");
    ret = H5Oclose(dset);
    CHECK(ret, FAIL, "H5Oclose");

    /* Attempting to close the data space with H5Oclose should fail */
    H5E_BEGIN_TRY {
       ret = H5Oclose(dspace);
       VERIFY(ret, FAIL, "H5Oclose");
    } H5E_END_TRY
    /* Close the dataspace for real */
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");

    /* Make sure that H5Oclose can close objects opened with H5Oopen */
    grp = H5Oopen(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Oopen");
    dtype = H5Oopen(fid, "group/datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Oopen");
    dset = H5Oopen(fid, "dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Oopen");

    ret = H5Oclose(grp);
    CHECK(ret, FAIL, "H5Oclose");
    ret = H5Oclose(dtype);
    CHECK(ret, FAIL, "H5Oclose");
    ret = H5Oclose(dset);
    CHECK(ret, FAIL, "H5Oclose");

    /* Make sure H5Oclose can close objects opened with H5*open */
    grp = H5Gopen2(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gopen2");
    dtype = H5Topen2(fid, "group/datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Topen2");
    dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dopen2");

    ret = H5Oclose(grp);
    CHECK(ret, FAIL, "H5Oclose");
    ret = H5Oclose(dtype);
    CHECK(ret, FAIL, "H5Oclose");
    ret = H5Oclose(dset);
    CHECK(ret, FAIL, "H5Oclose");

    /* Close the file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");
}


/****************************************************************
**
**  test_h5o_open_by_addr(): Test H5Oopen_by_addr function.
**
****************************************************************/
static void
test_h5o_open_by_addr(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    H5L_info_t li;                      /* Buffer for H5Lget_info */
    haddr_t grp_addr;                       /* Addresses for objects */
    haddr_t dset_addr;
    haddr_t dtype_addr;
    hsize_t     dims[RANK];
    H5I_type_t  id_type;                    /* Type of IDs returned from H5Oopen */
    H5G_info_t  ginfo;                      /* Group info struct */
    H5T_class_t type_class;                 /* Class of the datatype */
    herr_t      ret;                        /* Value returned from API calls */

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create a group, dataset, and committed datatype within the file */
    /* Create the group */
    grp = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate2");
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");

    /* Commit the type inside the group */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit2(fid, "group/datatype", dtype, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit2");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create the data space for the dataset. */
    dims[0] = DIM0;
    dims[1] = DIM1;
    dspace = H5Screate_simple(RANK, dims, NULL);
    CHECK(dspace, FAIL, "H5Screate_simple");

    /* Create the dataset. */
    dset = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, dspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate2");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");

    /* Get address for each object */
    ret = H5Lget_info(fid, "group", &li, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Lget_info");
    grp_addr = li.u.address;
    ret = H5Lget_info(fid, "group/datatype", &li, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Lget_info");
    dtype_addr = li.u.address;
    ret = H5Lget_info(fid, "dataset", &li, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Lget_info");
    dset_addr = li.u.address;

    /* Now make sure that H5Oopen_by_addr can open all three types of objects */
    grp = H5Oopen_by_addr(fid, grp_addr);
    CHECK(grp, FAIL, "H5Oopen_by_addr");
    dtype = H5Oopen_by_addr(fid, dtype_addr);
    CHECK(dtype, FAIL, "H5Oopen_by_addr");
    /* Check that we can use the group ID as a valid location */
    dset = H5Oopen_by_addr(grp, dset_addr);
    CHECK(dset, FAIL, "H5Oopen_by_addr");

    /* Make sure that each is the right kind of ID */
    id_type = H5Iget_type(grp);
    VERIFY(id_type, H5I_GROUP, "H5Iget_type for group ID");
    id_type = H5Iget_type(dtype);
    VERIFY(id_type, H5I_DATATYPE, "H5Iget_type for datatype ID");
    id_type = H5Iget_type(dset);
    VERIFY(id_type, H5I_DATASET, "H5Iget_type for dataset ID");

    /* Do something more complex with each of the IDs to make sure they "work" */
    ret = H5Gget_info(grp, &ginfo);
    CHECK(ret, FAIL, "H5Gget_info");
    VERIFY(ginfo.nlinks, 1, "H5Gget_info"); /* There should be one object, the datatype */

    type_class = H5Tget_class(dtype);
    VERIFY(type_class, H5T_INTEGER, "H5Tget_class");

    dspace = H5Dget_space(dset);
    CHECK(dspace, FAIL, "H5Dget_space");

    /* Close the IDs */
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Try giving some bogus values to H5O_open_by_addr. */
    /* Try to open an object with a bad address */
    grp_addr += 20;
    H5E_BEGIN_TRY{
      grp = H5Oopen_by_addr(fid, grp_addr);
    }H5E_END_TRY
    VERIFY(grp, FAIL, "H5Oopen_by_addr");

    /* For instance, an objectno smaller than the end of the file's superblock should
     * trigger an error */
    grp_addr = 10;
    H5E_BEGIN_TRY{
      grp = H5Oopen_by_addr(fid, grp_addr);
    }H5E_END_TRY
    VERIFY(grp, FAIL, "H5Oopen_by_addr");

    /* Likewise, an objectno larger than the size of the file should fail */
    grp_addr = 0;
    grp_addr = 1000000000;
    H5E_BEGIN_TRY{
      grp = H5Oopen_by_addr(fid, grp_addr);
    }H5E_END_TRY
    VERIFY(grp, FAIL, "H5Oopen_by_addr");

    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Also, trying to open an object without a valid location should fail */
    H5E_BEGIN_TRY{
      dtype = H5Oopen_by_addr(fid, dtype_addr);
    }H5E_END_TRY
    VERIFY(dtype, FAIL, "H5Oopen_by_addr");
} /* test_h5o_open_by_addr() */


/****************************************************************
**
**  test_h5o_refcount(): Test H5O refcounting functions.
**
****************************************************************/
static void
test_h5o_refcount(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    H5O_info_t	oinfo;                      /* Object info struct */
    hsize_t     dims[RANK];
    herr_t      ret;                        /* Value returned from API calls */

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create a group, dataset, and committed datatype within the file */
    /* Create the group */
    grp = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate2");

    /* Commit the type inside the group */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit2(fid, "datatype", dtype, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit2");

    /* Create the data space for the dataset. */
    dims[0] = DIM0;
    dims[1] = DIM1;
    dspace = H5Screate_simple(RANK, dims, NULL);
    CHECK(dspace, FAIL, "H5Screate_simple");

    /* Create the dataset. */
    dset = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, dspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate2");
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");

    /* Get ref counts for each object.  They should all be 1, since each object has a hard link. */
    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");

    /* Increment each object's reference count. */
    ret = H5Oincr_refcount(grp);
    CHECK(ret, FAIL, "H5Oincr_refcount");
    ret = H5Oincr_refcount(dtype);
    CHECK(ret, FAIL, "H5Oincr_refcount");
    ret = H5Oincr_refcount(dset);
    CHECK(ret, FAIL, "H5Oincr_refcount");

    /* Get ref counts for each object.  They should all be 2 now. */
    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");

    /* Decrement the reference counts and check that they decrease back to 1. */
    ret = H5Odecr_refcount(grp);
    CHECK(ret, FAIL, "H5Odecr_refcount");
    ret = H5Odecr_refcount(dtype);
    CHECK(ret, FAIL, "H5Odecr_refcount");
    ret = H5Odecr_refcount(dset);
    CHECK(ret, FAIL, "H5Odecr_refcount");

    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");

    /* Increment the reference counts and then close the file to make sure the increment is permanant */
    ret = H5Oincr_refcount(grp);
    CHECK(ret, FAIL, "H5Oincr_refcount");
    ret = H5Oincr_refcount(dtype);
    CHECK(ret, FAIL, "H5Oincr_refcount");
    ret = H5Oincr_refcount(dset);
    CHECK(ret, FAIL, "H5Oincr_refcount");

    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Re-open the file and check that the reference counts were really incremented */
    fid = H5Fopen(TEST_FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    grp = H5Gopen2(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gopen2");
    dtype = H5Topen2(fid, "datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Topen2");
    dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dopen2");

    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");

    /* Decrement the reference counts and close the file */
    ret = H5Odecr_refcount(grp);
    CHECK(ret, FAIL, "H5Odecr_refcount");
    ret = H5Odecr_refcount(dtype);
    CHECK(ret, FAIL, "H5Odecr_refcount");
    ret = H5Odecr_refcount(dset);
    CHECK(ret, FAIL, "H5Odecr_refcount");

    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Re-open the file and check that the reference counts were really decremented */
    fid = H5Fopen(TEST_FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    grp = H5Gopen2(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gopen2");
    dtype = H5Topen2(fid, "datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Topen2");
    dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dopen2");

    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");

    /* Close the IDs */
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Make sure that bogus IDs return errors properly */
    H5E_BEGIN_TRY {
        ret = H5Oincr_refcount(grp);
        VERIFY(ret, FAIL, "H5Oincr_refcount");
        ret = H5Oincr_refcount(dtype);
        VERIFY(ret, FAIL, "H5Oincr_refcount");
        ret = H5Oincr_refcount(dset);
        VERIFY(ret, FAIL, "H5Oincr_refcount");
        ret = H5Odecr_refcount(grp);
        VERIFY(ret, FAIL, "H5Odecr_refcount");
        ret = H5Odecr_refcount(dtype);
        VERIFY(ret, FAIL, "H5Odecr_refcount");
        ret = H5Odecr_refcount(dset);
        VERIFY(ret, FAIL, "H5Odecr_refcount");
    } H5E_END_TRY

    /* Close the file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");
} /* test_h5o_refcount() */


/****************************************************************
**
**  test_h5o_plist(): Test object creation properties
**
****************************************************************/
static void
test_h5o_plist(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    hid_t       fapl;                       /* File access property list */
    hid_t       gcpl, dcpl, tcpl;           /* Object creation properties */
    unsigned    def_max_compact, def_min_dense; /* Default phase change parameters */
    unsigned    max_compact, min_dense;         /* Actual phase change parameters */
    herr_t      ret;                        /* Value returned from API calls */

    /* Make a FAPL that uses the "use the latest version of the format" flag */
    fapl = H5Pcreate(H5P_FILE_ACCESS);
    CHECK(fapl, FAIL, "H5Pcreate");

    /* Set the "use the latest version of the format" bounds for creating objects in the file */
    ret = H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST);
    CHECK(ret, FAIL, "H5Pset_libver_bounds");

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create group, dataset & named datatype creation property lists */
    gcpl = H5Pcreate(H5P_GROUP_CREATE);
    CHECK(gcpl, FAIL, "H5Pcreate");
    dcpl = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl, FAIL, "H5Pcreate");
    tcpl = H5Pcreate(H5P_DATATYPE_CREATE);
    CHECK(tcpl, FAIL, "H5Pcreate");

    /* Retrieve default attribute phase change values */
    ret = H5Pget_attr_phase_change(gcpl, &def_max_compact, &def_min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");

    /* Set non-default attribute phase change values on each creation property list */
    ret = H5Pset_attr_phase_change(gcpl, def_max_compact + 1, def_min_dense - 1);
    CHECK(ret, FAIL, "H5Pset_attr_phase_change");
    ret = H5Pset_attr_phase_change(dcpl, def_max_compact + 1, def_min_dense - 1);
    CHECK(ret, FAIL, "H5Pset_attr_phase_change");
    ret = H5Pset_attr_phase_change(tcpl, def_max_compact + 1, def_min_dense - 1);
    CHECK(ret, FAIL, "H5Pset_attr_phase_change");

    /* Retrieve attribute phase change values on each creation property list and verify */
    ret = H5Pget_attr_phase_change(gcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");
    ret = H5Pget_attr_phase_change(dcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");
    ret = H5Pget_attr_phase_change(tcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");

    /* Create a group, dataset, and committed datatype within the file,
     *  using the respective type of creation property lists.
     */

    /* Create the group anonymously and link it in */
    grp = H5Gcreate_anon(fid, gcpl, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate_anon");
    ret = H5Olink(grp, fid, "group", H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Olink");

    /* Commit the type inside the group anonymously and link it in */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit_anon(fid, dtype, tcpl, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit_anon");
    ret = H5Olink(dtype, fid, "datatype", H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Olink");

    /* Create the dataspace for the dataset. */
    dspace = H5Screate(H5S_SCALAR);
    CHECK(dspace, FAIL, "H5Screate");

    /* Create the dataset anonymously and link it in */
    dset = H5Dcreate_anon(fid, H5T_NATIVE_INT, dspace, dcpl, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate_anon");
    ret = H5Olink(dset, fid, "dataset", H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Olink");
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close current creation property lists */
    ret = H5Pclose(gcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Pclose(dcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Pclose(tcpl);
    CHECK(ret, FAIL, "H5Pclose");

    /* Retrieve each object's creation property list */
    gcpl = H5Gget_create_plist(grp);
    CHECK(gcpl, FAIL, "H5Gget_create_plist");
    tcpl = H5Tget_create_plist(dtype);
    CHECK(tcpl, FAIL, "H5Tget_create_plist");
    dcpl = H5Dget_create_plist(dset);
    CHECK(dcpl, FAIL, "H5Dget_create_plist");

    /* Retrieve attribute phase change values on each creation property list and verify */
    ret = H5Pget_attr_phase_change(gcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");
    ret = H5Pget_attr_phase_change(dcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");
    ret = H5Pget_attr_phase_change(tcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");

    /* Close current objects */
    ret = H5Pclose(gcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Pclose(dcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Pclose(tcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Re-open the file and check that the object creation properties persist */
    fid = H5Fopen(TEST_FILENAME, H5F_ACC_RDONLY, fapl);
    CHECK(fid, FAIL, "H5Fopen");

    /* Re-open objects */
    grp = H5Gopen2(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gopen2");
    dtype = H5Topen2(fid, "datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Topen2");
    dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dopen2");

    /* Retrieve each object's creation property list */
    gcpl = H5Gget_create_plist(grp);
    CHECK(gcpl, FAIL, "H5Gget_create_plist");
    tcpl = H5Tget_create_plist(dtype);
    CHECK(tcpl, FAIL, "H5Tget_create_plist");
    dcpl = H5Dget_create_plist(dset);
    CHECK(dcpl, FAIL, "H5Dget_create_plist");

    /* Retrieve attribute phase change values on each creation property list and verify */
    ret = H5Pget_attr_phase_change(gcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");
    ret = H5Pget_attr_phase_change(dcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");
    ret = H5Pget_attr_phase_change(tcpl, &max_compact, &min_dense);
    CHECK(ret, FAIL, "H5Pget_attr_phase_change");
    VERIFY(max_compact, (def_max_compact + 1), "H5Pget_attr_phase_change");
    VERIFY(min_dense, (def_min_dense - 1), "H5Pget_attr_phase_change");

    /* Close current objects */
    ret = H5Pclose(gcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Pclose(dcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Pclose(tcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Close the FAPL */
    ret = H5Pclose(fapl);
    CHECK(ret, FAIL, "H5Pclose");
} /* test_h5o_plist() */


/****************************************************************
**
**  test_h5o_link(): Test creating link to object
**
****************************************************************/
static void
test_h5o_link(void)
{
    hid_t file_id=-1;
    hid_t group_id=-1;
    hid_t space_id=-1;
    hid_t dset_id=-1;
    hid_t type_id=-1;
    hid_t fapl_id=-1;
    hid_t lcpl_id=-1;
    hsize_t dims[2] = {TEST6_DIM1, TEST6_DIM2};
    htri_t committed;           /* Whether the named datatype is committed */
    unsigned new_format;        /* Whether to use the new format or not */
    int wdata[TEST6_DIM1][TEST6_DIM2];
    int rdata[TEST6_DIM1][TEST6_DIM2];
    int i, n, j;
    herr_t ret;                 /* Value returned from API calls */

    /* Initialize the raw data */
    for(i = n = 0; i < TEST6_DIM1; i++)
        for(j = 0; j < TEST6_DIM2; j++)
          wdata[i][j] = n++;

    /* Create the dataspace */
    space_id = H5Screate_simple(2 ,dims, NULL);
    CHECK(space_id, FAIL, "H5Screate_simple");

    /* Create LCPL with intermediate group creation flag set */
    lcpl_id = H5Pcreate(H5P_LINK_CREATE);
    CHECK(lcpl_id, FAIL, "H5Pcreate");
    ret = H5Pset_create_intermediate_group(lcpl_id, TRUE);
    CHECK(ret, FAIL, "H5Pset_create_intermediate_group");

    /* Loop over using new group format */
    for(new_format = FALSE; new_format <= TRUE; new_format++) {

        /* Make a FAPL that uses the "use the latest version of the format" bounds */
        fapl_id = H5Pcreate(H5P_FILE_ACCESS);
        CHECK(fapl_id, FAIL, "H5Pcreate");

        /* Set the "use the latest version of the format" bounds for creating objects in the file */
        ret = H5Pset_libver_bounds(fapl_id, (new_format ? H5F_LIBVER_LATEST : H5F_LIBVER_EARLIEST), H5F_LIBVER_LATEST);
        CHECK(ret, FAIL, "H5Pset_libver_bounds");

        /* Create a new HDF5 file */
        file_id = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
        CHECK(file_id, FAIL, "H5Fcreate");

        /* Close the FAPL */
        ret = H5Pclose(fapl_id);
        CHECK(ret, FAIL, "H5Pclose");


        /* Create and commit a datatype with no name */
        type_id = H5Tcopy(H5T_NATIVE_INT);
        CHECK(type_id, FAIL, "H5Fcreate");
        ret = H5Tcommit_anon(file_id, type_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK(ret, FAIL, "H5Tcommit_anon");
        committed = H5Tcommitted(type_id);
        VERIFY(committed, TRUE, "H5Tcommitted");

        /* Create a dataset with no name using the committed datatype*/
        dset_id = H5Dcreate_anon(file_id, type_id, space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK(dset_id, FAIL, "H5Dcreate_anon");

        /* Verify that we can write to and read from the dataset */

        /* Write the data to the dataset */
        ret = H5Dwrite(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
        CHECK(ret, FAIL, "H5Dwrite");

        /* Read the data back */
        ret = H5Dread(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
        CHECK(ret, FAIL, "H5Dread");

        /* Verify the data */
        for(i = 0; i < TEST6_DIM1; i++)
            for(j = 0; j < TEST6_DIM2; j++)
                VERIFY(wdata[i][j], rdata[i][j], "H5Dread");

        /* Create a group with no name*/
        group_id = H5Gcreate_anon(file_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK(group_id, FAIL, "H5Gcreate_anon");

        /* Link nameless datatype into nameless group */
        ret = H5Olink(type_id, group_id, "datatype", H5P_DEFAULT, H5P_DEFAULT);
        CHECK(ret, FAIL, "H5Olink");

        /* Link nameless dataset into nameless group with intermediate group */
        ret = H5Olink(dset_id, group_id, "inter_group/dataset", lcpl_id, H5P_DEFAULT);
        CHECK(ret, FAIL, "H5Olink");

        /* Close IDs for dataset and datatype */
        ret = H5Dclose(dset_id);
        CHECK(ret, FAIL, "H5Dclose");
        ret = H5Tclose(type_id);
        CHECK(ret, FAIL, "H5Tclose");

        /* Re-open datatype using new link */
        type_id = H5Topen2(group_id, "datatype", H5P_DEFAULT);
        CHECK(type_id, FAIL, "H5Topen2");

        /* Link nameless group to root group and close the group ID*/
        ret = H5Olink(group_id, file_id, "/group", H5P_DEFAULT, H5P_DEFAULT);
        CHECK(ret, FAIL, "H5Olink");
        ret = H5Gclose(group_id);
        CHECK(ret, FAIL, "H5Gclose");

        /* Open dataset through root group and verify its data */
        dset_id = H5Dopen2(file_id, "/group/inter_group/dataset", H5P_DEFAULT);
        CHECK(dset_id, FAIL, "H5Dopen2");

        /* Read data from dataset */
        ret = H5Dread(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
        CHECK(ret, FAIL, "H5Dread");
        for(i = 0; i < TEST6_DIM1; i++)
            for(j = 0; j < TEST6_DIM2; j++)
                VERIFY(wdata[i][j], rdata[i][j], "H5Dread");

        /* Close open IDs */
        ret = H5Dclose(dset_id);
        CHECK(ret, FAIL, "H5Dclose");
        ret = H5Tclose(type_id);
        CHECK(ret, FAIL, "H5Tclose");
        ret = H5Fclose(file_id);
        CHECK(ret, FAIL, "H5Fclose");
    } /* end for */

    /* Close remaining IDs */
    ret = H5Sclose(space_id);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Pclose(lcpl_id);
    CHECK(ret, FAIL, "H5Pclose");
} /* end test_h5o_link() */


/****************************************************************
**
**  test_h5o_comment(): Test H5Oset(get)_comment functions.
**
****************************************************************/
static void
test_h5o_comment(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    hid_t       attr_space, attr_id;
    hsize_t     dims[RANK];
    hsize_t     attr_dims = 1;
    int         attr_value = 5;
    const char  *file_comment = "file comment";
    const char  *grp_comment = "group comment";
    const char  *dset_comment = "dataset comment";
    const char  *dtype_comment = "datatype comment";
    char        check_comment[64];
    ssize_t     comment_len = 0;
    herr_t      ret;                        /* Value returned from API calls */
    int         ret_value;

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create an attribute for the file */
    attr_space = H5Screate_simple(1, &attr_dims, NULL);
    CHECK(attr_space, FAIL, "H5Screate_simple");
    attr_id = H5Acreate2(fid, "file attribute", H5T_NATIVE_INT, attr_space, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(attr_id, FAIL, "H5Acreate2");
    ret = H5Awrite(attr_id, H5T_NATIVE_INT, &attr_value);
    CHECK(ret, FAIL, "H5Awrite");

    /* Putting a comment on the file through its attribute */
    ret = H5Oset_comment(attr_id, file_comment);
    CHECK(ret, FAIL, "H5Oset_comment");

    ret = H5Sclose(attr_space);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Aclose(attr_id);
    CHECK(ret, FAIL, "H5Aclose");

    /* Create a group, dataset, and committed datatype within the file */
    /* Create the group */
    grp = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate2");

    /* Putting a comment on the group */
    ret = H5Oset_comment(grp, grp_comment);
    CHECK(ret, FAIL, "H5Oset_comment");

    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");

    /* Commit the type inside the group */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit2(fid, "group/datatype", dtype, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit2");

    /* Putting a comment on the committed data type */
    ret = H5Oset_comment(dtype, dtype_comment);
    CHECK(ret, FAIL, "H5Oset_comment");

    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create the data space for the dataset. */
    dims[0] = DIM0;
    dims[1] = DIM1;
    dspace = H5Screate_simple(RANK, dims, NULL);
    CHECK(dspace, FAIL, "H5Screate_simple");

    /* Create the dataset. */
    dset = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, dspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate2");

    /* Putting a comment on the dataset */
    ret = H5Oset_comment(dset, dset_comment);
    CHECK(ret, FAIL, "H5Oset_comment");

    /* Putting a comment on the dataspace.  It's supposed to fail. */
    H5E_BEGIN_TRY {
        ret = H5Oset_comment(dspace, "dataspace comment");
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Oset_comment");

    /* Close the file */
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");


    /* Now make sure that the comments are correct all 4 types of objects */
    /* Open file */
    fid = H5Fopen(TEST_FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    /* Getting the comment on the file and verify it */
    comment_len = H5Oget_comment(fid, NULL, (size_t)0);
    CHECK(comment_len, FAIL, "H5Oget_comment");

    ret = H5Oget_comment(fid, check_comment, (size_t)comment_len+1);
    CHECK(ret, FAIL, "H5Oget_comment");

    ret_value = HDstrcmp(file_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment");

    /* Open the group */
    grp = H5Gopen2(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gopen2");

    /* Getting the comment on the group and verify it */
    comment_len = H5Oget_comment(grp, NULL, (size_t)0);
    CHECK(comment_len, FAIL, "H5Oget_comment");

    ret = H5Oget_comment(grp, check_comment, (size_t)comment_len+1);
    CHECK(ret, FAIL, "H5Oget_comment");

    ret_value = HDstrcmp(grp_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment");

    /* Open the datatype */
    dtype = H5Topen2(fid, "group/datatype", H5P_DEFAULT);
    CHECK(dtype, FAIL, "H5Topen2");

    /* Getting the comment on the datatype and verify it */
    comment_len = H5Oget_comment(dtype, NULL, (size_t)0);
    CHECK(comment_len, FAIL, "H5Oget_comment");

    ret = H5Oget_comment(dtype, check_comment, (size_t)comment_len+1);
    CHECK(ret, FAIL, "H5Oget_comment");

    ret_value = HDstrcmp(dtype_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment");

    /* Open the dataset */
    dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dopen2");

    /* Getting the comment on the dataset and verify it */
    comment_len = H5Oget_comment(dset, NULL, (size_t)0);
    CHECK(comment_len, FAIL, "H5Oget_comment");

    ret = H5Oget_comment(dset, check_comment, (size_t)comment_len+1);
    CHECK(ret, FAIL, "H5Oget_comment");

    ret_value = HDstrcmp(dset_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment");


    /* Close the IDs */
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close the file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

} /* test_h5o_comment() */


/****************************************************************
**
**  test_h5o_comment_by_name(): Test H5Oset(get)_comment_by_name functions.
**
****************************************************************/
static void
test_h5o_comment_by_name(void)
{
    hid_t       fid;                        /* HDF5 File ID      */
    hid_t       grp, dset, dtype, dspace;   /* Object identifiers */
    hid_t       attr_space, attr_id;
    hsize_t     dims[RANK];
    hsize_t     attr_dims = 1;
    int         attr_value = 5;
    const char  *file_comment = "file comment by name";
    const char  *grp_comment = "group comment by name";
    const char  *dset_comment = "dataset comment by name";
    const char  *dtype_comment = "datatype comment by name";
    char        check_comment[64];
    ssize_t     comment_len = 0;
    herr_t      ret;                        /* Value returned from API calls */
    int         ret_value;

    /* Create a new HDF5 file */
    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create an attribute for the file */
    attr_space = H5Screate_simple(1, &attr_dims, NULL);
    CHECK(attr_space, FAIL, "H5Screate_simple");
    attr_id = H5Acreate2(fid, "file attribute", H5T_NATIVE_INT, attr_space, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(attr_id, FAIL, "H5Acreate2");
    ret = H5Awrite(attr_id, H5T_NATIVE_INT, &attr_value);
    CHECK(ret, FAIL, "H5Awrite");

    /* Putting a comment on the file through its attribute */
    ret = H5Oset_comment_by_name(attr_id, ".", file_comment, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oset_comment_by_name");

    ret = H5Sclose(attr_space);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Aclose(attr_id);
    CHECK(ret, FAIL, "H5Aclose");

    /* Create a group, dataset, and committed datatype within the file */
    /* Create the group */
    grp = H5Gcreate2(fid, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gcreate2");

    /* Putting a comment on the group */
    ret = H5Oset_comment_by_name(fid, "group", grp_comment, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oset_comment_by_name");

    /* Commit the type inside the group */
    dtype = H5Tcopy(H5T_NATIVE_INT);
    CHECK(dtype, FAIL, "H5Tcopy");
    ret = H5Tcommit2(fid, "group/datatype", dtype, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Tcommit2");

    /* Putting a comment on the committed data type */
    ret = H5Oset_comment_by_name(grp, "datatype", dtype_comment, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oset_comment_by_name");

    ret = H5Tclose(dtype);
    CHECK(ret, FAIL, "H5Tclose");

    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");

    /* Create the data space for the dataset. */
    dims[0] = DIM0;
    dims[1] = DIM1;
    dspace = H5Screate_simple(RANK, dims, NULL);
    CHECK(dspace, FAIL, "H5Screate_simple");

    /* Create the dataset. */
    dset = H5Dcreate2(fid, "dataset", H5T_NATIVE_INT, dspace, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset, FAIL, "H5Dcreate2");

    /* Putting a comment on the dataset */
    ret = H5Oset_comment_by_name(fid, "dataset", dset_comment, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oset_comment_by_name");

    /* Putting a comment on the dataspace.  It's supposed to fail. */
    H5E_BEGIN_TRY {
        ret = H5Oset_comment_by_name(dspace, ".", "dataspace comment", H5P_DEFAULT);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Oset_comment");

    /* Close the file */
    ret = H5Dclose(dset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Sclose(dspace);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Now make sure that the comments are correct all 4 types of objects */
    /* Open file */
    fid = H5Fopen(TEST_FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    /* Getting the comment on the file and verify it */
    comment_len = H5Oget_comment_by_name(fid, ".", NULL, (size_t)0, H5P_DEFAULT);
    CHECK(comment_len, FAIL, "H5Oget_comment_by_name");

    ret = H5Oget_comment_by_name(fid, ".", check_comment, (size_t)comment_len+1, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_comment_by_name");

    ret_value = HDstrcmp(file_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment_by_name");

    /* Open the group */
    grp = H5Gopen2(fid, "group", H5P_DEFAULT);
    CHECK(grp, FAIL, "H5Gopen2");

    /* Getting the comment on the group and verify it */
    comment_len = H5Oget_comment_by_name(fid, "group", NULL, (size_t)0, H5P_DEFAULT);
    CHECK(comment_len, FAIL, "H5Oget_comment_by_name");

    ret = H5Oget_comment_by_name(fid, "group", check_comment, (size_t)comment_len+1, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_comment_by_name");

    ret_value = HDstrcmp(grp_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment_by_name");

    /* Getting the comment on the datatype and verify it */
    comment_len = H5Oget_comment_by_name(grp, "datatype", NULL, (size_t)0, H5P_DEFAULT);
    CHECK(comment_len, FAIL, "H5Oget_comment_by_name");

    ret = H5Oget_comment_by_name(grp, "datatype", check_comment, (size_t)comment_len+1, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_comment");

    ret_value = HDstrcmp(dtype_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment_by_name");

    /* Getting the comment on the dataset and verify it */
    comment_len = H5Oget_comment_by_name(fid, "dataset", NULL, (size_t)0, H5P_DEFAULT);
    CHECK(comment_len, FAIL, "H5Oget_comment_by_name");

    ret = H5Oget_comment_by_name(fid, "dataset", check_comment, (size_t)comment_len+1, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_comment_by_name");

    ret_value = HDstrcmp(dset_comment, check_comment);
    VERIFY(ret_value, 0, "H5Oget_comment_by_name");

    /* Close the IDs */
    ret = H5Gclose(grp);
    CHECK(ret, FAIL, "H5Gclose");

    /* Close the file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

} /* test_h5o_comment_by_name() */


/****************************************************************
**
**  test_h5o_getinfo_same_file():  Test that querying the object info for
**      objects in the same file will return the same file "number"
**
****************************************************************/
static void
test_h5o_getinfo_same_file(void)
{
    hid_t       fid1, fid2;             /* HDF5 File ID */
    hid_t       gid1, gid2;             /* Group IDs */
    H5O_info_t	oinfo1, oinfo2;         /* Object info structs */
    herr_t      ret;                    /* Value returned from API calls */

    /* Create a new HDF5 file */
    fid1 = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create two groups in the file */
    gid1 = H5Gcreate2(fid1, "group1", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(gid1, FAIL, "H5Gcreate2");
    gid2 = H5Gcreate2(fid1, "group2", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(gid2, FAIL, "H5Gcreate2");

    /* Reset object info */
    HDmemset(&oinfo1, 0, sizeof(oinfo1));
    HDmemset(&oinfo2, 0, sizeof(oinfo2));

    /* Query the object info for each object, through group IDs */
    ret = H5Oget_info(gid1, &oinfo1);
    CHECK(ret, FAIL, "H5Oget_info");
    ret = H5Oget_info(gid2, &oinfo2);
    CHECK(ret, FAIL, "H5Oget_info");

    VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");

    /* Reset object info */
    HDmemset(&oinfo1, 0, sizeof(oinfo1));
    HDmemset(&oinfo2, 0, sizeof(oinfo2));

    /* Query the object info for each object, by name */
    ret = H5Oget_info_by_name(fid1, "group1", &oinfo1, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid1, "group2", &oinfo2, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");

    VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");

    /* Close everything */
    ret = H5Gclose(gid1);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Gclose(gid2);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");


    /* Open file twice */
    fid1 = H5Fopen(TEST_FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");
    fid2 = H5Fopen(TEST_FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid2, FAIL, "H5Fopen");

    /* Open the two groups in the file */
    gid1 = H5Gopen2(fid1, "group1", H5P_DEFAULT);
    CHECK(gid1, FAIL, "H5Gopen2");
    gid2 = H5Gopen2(fid2, "group2", H5P_DEFAULT);
    CHECK(gid2, FAIL, "H5Gopen2");

    /* Reset object info */
    HDmemset(&oinfo1, 0, sizeof(oinfo1));
    HDmemset(&oinfo2, 0, sizeof(oinfo2));

    /* Query the object info for each object, through group IDs */
    ret = H5Oget_info(gid1, &oinfo1);
    CHECK(ret, FAIL, "H5Oget_info");
    ret = H5Oget_info(gid2, &oinfo2);
    CHECK(ret, FAIL, "H5Oget_info");

    VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");

    /* Reset object info */
    HDmemset(&oinfo1, 0, sizeof(oinfo1));
    HDmemset(&oinfo2, 0, sizeof(oinfo2));

    /* Query the object info for each object, by name */
    ret = H5Oget_info_by_name(fid1, "group1", &oinfo1, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");
    ret = H5Oget_info_by_name(fid1, "group2", &oinfo2, H5P_DEFAULT);
    CHECK(ret, FAIL, "H5Oget_info_by_name");

    VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");

    /* Close everything */
    ret = H5Gclose(gid1);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Gclose(gid2);
    CHECK(ret, FAIL, "H5Gclose");
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");
    ret = H5Fclose(fid2);
    CHECK(ret, FAIL, "H5Fclose");

} /* test_h5o_getinfo_same_file() */



/****************************************************************
**
**  test_h5o(): Main H5O (generic object) testing routine.
**
****************************************************************/
void
test_h5o(void)
{
    /* Output message about test being performed */
    MESSAGE(5, ("Testing Objects\n"));

    test_h5o_open();		/* Test generic open function */
    test_h5o_open_by_addr();	/* Test opening objects by address */
    test_h5o_close();		/* Test generic close function */
    test_h5o_refcount();        /* Test incrementing and decrementing reference count */
    test_h5o_plist();           /* Test object creation properties */
    test_h5o_link();            /* Test object link routine */
    test_h5o_comment();         /* Test routines for comment */
    test_h5o_comment_by_name(); /* Test routines for comment by name */
    test_h5o_getinfo_same_file(); /* Test info for objects in the same file */
} /* test_h5o() */


/*-------------------------------------------------------------------------
 * Function:	cleanup_h5o
 *
 * Purpose:	Cleanup temporary test files
 *
 * Return:	none
 *
 * Programmer:	James Laird
 *              June 3, 2006
 *
 *-------------------------------------------------------------------------
 */
void
cleanup_h5o(void)
{
    remove(TEST_FILENAME);
}