summaryrefslogtreecommitdiffstats
path: root/java/src/jni/h5oImp.c
blob: 7665c7063af51c6db4947cb10f92e48050373ac1 (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
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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 *  For details of the HDF libraries, see the HDF Documentation at:
 *    http://hdfgroup.org/HDF5/doc/
 *
 */

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#include <stdlib.h>
#include "hdf5.h"
#include "h5jni.h"
#include "h5oImp.h"

extern JavaVM *jvm;
extern jobject visit_callback;

/********************/
/* Local Prototypes */
/********************/

static herr_t H5O_iterate_cb(hid_t g_id, const char *name, const H5O_info_t *info, void *op_data);

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    _H5Oopen
 * Signature: (JLjava/lang/String;J)J
 */
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5__1H5Oopen
    (JNIEnv *env, jclass clss, jlong loc_id, jstring name, jlong access_plist_id)
{
    hid_t       status = -1;
    const char *oName;

    PIN_JAVA_STRING(name, oName);
    if (oName != NULL) {
        status = H5Oopen((hid_t)loc_id, oName, (hid_t)access_plist_id );

        UNPIN_JAVA_STRING(name, oName);

        if (status < 0)
            h5libraryError(env);
    }

    return (jlong)status;
} /* end Java_hdf_hdf5lib_H5__1H5Oopen */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    _H5Oclose
 * Signature: (J)I
 */
JNIEXPORT jint JNICALL
Java_hdf_hdf5lib_H5__1H5Oclose
    (JNIEnv *env, jclass clss, jlong object_id)
{
    herr_t retVal = H5Oclose((hid_t)object_id);

    if (retVal < 0)
        h5libraryError(env);

    return (jint)retVal;
} /* end Java_hdf_hdf5lib_H5__1H5Oclose */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Ocopy
 * Signature: (JLjava/lang/String;JLjava/lang/String;JJ)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Ocopy
    (JNIEnv *env, jclass clss, jlong cur_loc_id, jstring cur_name,
        jlong dst_loc_id, jstring dst_name, jlong create_id, jlong access_id)
{
    herr_t      status = -1;
    const char *lCurName;
    const char *lDstName;

    PIN_JAVA_STRING_TWO(cur_name, lCurName, dst_name, lDstName);
    if (lCurName != NULL && lDstName != NULL) {
        status = H5Ocopy((hid_t)cur_loc_id, lCurName, (hid_t)dst_loc_id, lDstName, (hid_t)create_id, (hid_t)access_id);

        UNPIN_JAVA_STRING_TWO(cur_name, lCurName, dst_name, lDstName);

        if (status < 0)
            h5libraryError(env);
    }
} /* end Java_hdf_hdf5lib_H5_H5Ocopy */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oget_info
 * Signature: (JI)Lhdf/hdf5lib/structs/H5O_info_t;
 */
JNIEXPORT jobject JNICALL
Java_hdf_hdf5lib_H5_H5Oget_1info
    (JNIEnv *env, jclass clss, jlong loc_id, jint fields)
{
    herr_t      status = -1;
    H5O_info_t  infobuf;
    jvalue      args[12];
    jobject     hdrinfobuf;
    jobject     ihinfobuf1;
    jobject     ihinfobuf2;
    jobject     ret_obj = NULL;

    status = H5Oget_info2((hid_t)loc_id, &infobuf, (unsigned)fields);

    if (status < 0) {
        h5libraryError(env);
    } /* end if */
    else {
        args[0].i = (jint)infobuf.hdr.version;
        args[1].i = (jint)infobuf.hdr.nmesgs;
        args[2].i = (jint)infobuf.hdr.nchunks;
        args[3].i = (jint)infobuf.hdr.flags;
        args[4].j = (jlong)infobuf.hdr.space.total;
        args[5].j = (jlong)infobuf.hdr.space.meta;
        args[6].j = (jlong)infobuf.hdr.space.mesg;
        args[7].j = (jlong)infobuf.hdr.space.free;
        args[8].j = (jlong)infobuf.hdr.mesg.present;
        args[9].j = (jlong)infobuf.hdr.mesg.shared;
        CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5O_hdr_info_t", "(IIIIJJJJJJ)V", args);
        hdrinfobuf = ret_obj;

        args[0].j = (jlong)infobuf.meta_size.obj.index_size;
        args[1].j = (jlong)infobuf.meta_size.obj.heap_size;
        CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5_ih_info_t", "(JJ)V", args);
        ihinfobuf1 = ret_obj;
        args[0].j = (jlong)infobuf.meta_size.attr.index_size;
        args[1].j = (jlong)infobuf.meta_size.attr.heap_size;
        CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5_ih_info_t", "(JJ)V", args);
        ihinfobuf2 = ret_obj;

        args[0].j = (jlong)infobuf.fileno;
        args[1].j = (jlong)infobuf.addr;
        args[2].i = infobuf.type;
        args[3].i = (jint)infobuf.rc;
        args[4].j = (jlong)infobuf.num_attrs;
        args[5].j = infobuf.atime;
        args[6].j = infobuf.mtime;
        args[7].j = infobuf.ctime;
        args[8].j = infobuf.btime;
        args[9].l = hdrinfobuf;
        args[10].l = ihinfobuf1;
        args[11].l = ihinfobuf2;
        CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5O_info_t", "(JJIIJJJJJLhdf/hdf5lib/structs/H5O_hdr_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;)V", args);
    }

    return ret_obj;
} /* end Java_hdf_hdf5lib_H5_H5Oget_1info */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oget_info_by_name
 * Signature: (JLjava/lang/String;IJ)Lhdf/hdf5lib/structs/H5O_info_t;
 */
JNIEXPORT jobject JNICALL
Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1name
    (JNIEnv *env, jclass clss, jlong loc_id, jstring name, jint fields, jlong access_id)
{
    const char *lName;
    herr_t      status = -1;
    H5O_info_t  infobuf;
    jvalue      args[12];
    jobject     hdrinfobuf;
    jobject     ihinfobuf1;
    jobject     ihinfobuf2;
    jobject     ret_obj = NULL;

    PIN_JAVA_STRING(name, lName);
    if (lName != NULL) {
        status = H5Oget_info_by_name2((hid_t)loc_id, lName, &infobuf, (unsigned)fields, (hid_t)access_id);

        UNPIN_JAVA_STRING(name, lName);

        if (status < 0) {
            h5libraryError(env);
        } /* end if */
        else {
            args[0].i = (jint)infobuf.hdr.version;
            args[1].i = (jint)infobuf.hdr.nmesgs;
            args[2].i = (jint)infobuf.hdr.nchunks;
            args[3].i = (jint)infobuf.hdr.flags;
            args[4].j = (jlong)infobuf.hdr.space.total;
            args[5].j = (jlong)infobuf.hdr.space.meta;
            args[6].j = (jlong)infobuf.hdr.space.mesg;
            args[7].j = (jlong)infobuf.hdr.space.free;
            args[8].j = (jlong)infobuf.hdr.mesg.present;
            args[9].j = (jlong)infobuf.hdr.mesg.shared;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5O_hdr_info_t", "(IIIIJJJJJJ)V", args);
            hdrinfobuf = ret_obj;

            args[0].j = (jlong)infobuf.meta_size.obj.index_size;
            args[1].j = (jlong)infobuf.meta_size.obj.heap_size;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5_ih_info_t", "(JJ)V", args);
            ihinfobuf1 = ret_obj;
            args[0].j = (jlong)infobuf.meta_size.attr.index_size;
            args[1].j = (jlong)infobuf.meta_size.attr.heap_size;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5_ih_info_t", "(JJ)V", args);
            ihinfobuf2 = ret_obj;

            args[0].j = (jlong)infobuf.fileno;
            args[1].j = (jlong)infobuf.addr;
            args[2].i = infobuf.type;
            args[3].i = (jint)infobuf.rc;
            args[4].j = (jlong)infobuf.num_attrs;
            args[5].j = infobuf.atime;
            args[6].j = infobuf.mtime;
            args[7].j = infobuf.ctime;
            args[8].j = infobuf.btime;
            args[9].l = hdrinfobuf;
            args[10].l = ihinfobuf1;
            args[11].l = ihinfobuf2;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5O_info_t", "(JJIIJJJJJLhdf/hdf5lib/structs/H5O_hdr_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;)V", args);
        }
    }

    return ret_obj;
} /* end Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1name */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oget_info_by_idx
 * Signature: (JLjava/lang/String;IIJIJ)Lhdf/hdf5lib/structs/H5O_info_t;
 */
JNIEXPORT jobject JNICALL
Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1idx
    (JNIEnv *env, jclass clss, jlong loc_id,
        jstring name, jint index_field, jint order, jlong link_n, jint fields, jlong access_id)
{
    const char *lName;
    herr_t      status;
    H5O_info_t  infobuf;
    jvalue      args[12];
    jobject     hdrinfobuf;
    jobject     ihinfobuf1;
    jobject     ihinfobuf2;
    jobject     ret_obj = NULL;

    PIN_JAVA_STRING(name, lName);
    if (lName != NULL) {
        status = H5Oget_info_by_idx2((hid_t)loc_id, lName, (H5_index_t)index_field, (H5_iter_order_t)order, (hsize_t)link_n, &infobuf, (unsigned)fields, (hid_t)access_id);

        UNPIN_JAVA_STRING(name, lName);

        if (status < 0) {
            h5libraryError(env);
        } /* end if */
        else {
            args[0].i = (jint)infobuf.hdr.version;
            args[1].i = (jint)infobuf.hdr.nmesgs;
            args[2].i = (jint)infobuf.hdr.nchunks;
            args[3].i = (jint)infobuf.hdr.flags;
            args[4].j = (jlong)infobuf.hdr.space.total;
            args[5].j = (jlong)infobuf.hdr.space.meta;
            args[6].j = (jlong)infobuf.hdr.space.mesg;
            args[7].j = (jlong)infobuf.hdr.space.free;
            args[8].j = (jlong)infobuf.hdr.mesg.present;
            args[9].j = (jlong)infobuf.hdr.mesg.shared;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5O_hdr_info_t", "(IIIIJJJJJJ)V", args);
            hdrinfobuf = ret_obj;

            args[0].j = (jlong)infobuf.meta_size.obj.index_size;
            args[1].j = (jlong)infobuf.meta_size.obj.heap_size;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5_ih_info_t", "(JJ)V", args);
            ihinfobuf1 = ret_obj;
            args[0].j = (jlong)infobuf.meta_size.attr.index_size;
            args[1].j = (jlong)infobuf.meta_size.attr.heap_size;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5_ih_info_t", "(JJ)V", args);
            ihinfobuf2 = ret_obj;

            args[0].j = (jlong)infobuf.fileno;
            args[1].j = (jlong)infobuf.addr;
            args[2].i = infobuf.type;
            args[3].i = (jint)infobuf.rc;
            args[4].j = (jlong)infobuf.num_attrs;
            args[5].j = infobuf.atime;
            args[6].j = infobuf.mtime;
            args[7].j = infobuf.ctime;
            args[8].j = infobuf.btime;
            args[9].l = hdrinfobuf;
            args[10].l = ihinfobuf1;
            args[11].l = ihinfobuf2;
            CALL_CONSTRUCTOR("hdf/hdf5lib/structs/H5O_info_t", "(JJIIJJJJJLhdf/hdf5lib/structs/H5O_hdr_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;)V", args);
        }
    }

    return ret_obj;
} /* end Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1idx */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Olink
 * Signature: (JJLjava/lang/String;JJ)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Olink
    (JNIEnv *env, jclass clss, jlong cur_loc_id, jlong dst_loc_id,
        jstring dst_name, jlong create_id, jlong access_id)
{
    herr_t      status = -1;
    const char *lDstName;

    PIN_JAVA_STRING(dst_name, lDstName);
    if (lDstName != NULL) {
        status = H5Olink((hid_t)cur_loc_id, (hid_t)dst_loc_id, lDstName, (hid_t)create_id, (hid_t)access_id);

        UNPIN_JAVA_STRING(dst_name, lDstName);

        if (status < 0)
            h5libraryError(env);
    }
} /* end Java_hdf_hdf5lib_H5_H5Olink */

static herr_t
H5O_iterate_cb
    (hid_t g_id, const char *name, const H5O_info_t *info, void *op_data)
{
    JNIEnv    *cbenv;
    jint       status = -1;
    jclass     cls;
    jmethodID  mid;
    jstring    str;
    jmethodID  constructor;
    jvalue     args[12];
    jobject    hdrinfobuf;
    jobject    ihinfobuf1;
    jobject    ihinfobuf2;
    jobject    cb_info_t = NULL;

    if(JVMPTR->AttachCurrentThread(JVMPAR2 (void**)&cbenv, NULL) != 0) {
        /* printf("JNI H5O_iterate_cb error: AttachCurrentThread failed\n"); */
        JVMPTR->DetachCurrentThread(JVMPAR);
        return -1;
    } /* end if */
    cls = CBENVPTR->GetObjectClass(CBENVPAR visit_callback);
    if (cls != 0) {
        mid = CBENVPTR->GetMethodID(CBENVPAR cls, "callback", "(JLjava/lang/String;Lhdf/hdf5lib/structs/H5O_info_t;Lhdf/hdf5lib/callbacks/H5O_iterate_t;)I");
        if (mid != 0) {
            str = CBENVPTR->NewStringUTF(CBENVPAR name);

            args[0].i = (jint)info->hdr.version;
            args[1].i = (jint)info->hdr.nmesgs;
            args[2].i = (jint)info->hdr.nchunks;
            args[3].i = (jint)info->hdr.flags;
            args[4].j = (jlong)info->hdr.space.total;
            args[5].j = (jlong)info->hdr.space.meta;
            args[6].j = (jlong)info->hdr.space.mesg;
            args[7].j = (jlong)info->hdr.space.free;
            args[8].j = (jlong)info->hdr.mesg.present;
            args[9].j = (jlong)info->hdr.mesg.shared;
            // get a reference to the H5_hdr_info_t class
            cls = CBENVPTR->FindClass(CBENVPAR "hdf/hdf5lib/structs/H5O_hdr_info_t");
            if (cls != 0) {
                // get a reference to the constructor; the name is <init>
                constructor = CBENVPTR->GetMethodID(CBENVPAR cls, "<init>", "(IIIIJJJJJJ)V");
                if (constructor != 0) {
                    hdrinfobuf = CBENVPTR->NewObjectA(CBENVPAR cls, constructor, args);

                    args[0].j = (jlong)info->meta_size.obj.index_size;
                    args[1].j = (jlong)info->meta_size.obj.heap_size;
                    // get a reference to the H5_ih_info_t class
                    cls = CBENVPTR->FindClass(CBENVPAR "hdf/hdf5lib/structs/H5_ih_info_t");
                    if (cls != 0) {
                        // get a reference to the constructor; the name is <init>
                        constructor = CBENVPTR->GetMethodID(CBENVPAR cls, "<init>", "(JJ)V");
                        if (constructor != 0) {
                            ihinfobuf1 = CBENVPTR->NewObjectA(CBENVPAR cls, constructor, args);
                            args[0].j = (jlong)info->meta_size.attr.index_size;
                            args[1].j = (jlong)info->meta_size.attr.heap_size;
                            ihinfobuf2 = CBENVPTR->NewObjectA(CBENVPAR cls, constructor, args);

                            args[0].j = (jlong)info->fileno;
                            args[1].j = (jlong)info->addr;
                            args[2].i = info->type;
                            args[3].i = (jint)info->rc;
                            args[4].j = (jlong)info->num_attrs;
                            args[5].j = info->atime;
                            args[6].j = info->mtime;
                            args[7].j = info->ctime;
                            args[8].j = info->btime;
                            args[9].l = hdrinfobuf;
                            args[10].l = ihinfobuf1;
                            args[11].l = ihinfobuf2;
                            // get a reference to the H5O_info_t class
                            cls = CBENVPTR->FindClass(CBENVPAR "hdf/hdf5lib/structs/H5O_info_t");
                            if (cls != 0) {
                                // get a reference to the constructor; the name is <init>
                                constructor = CBENVPTR->GetMethodID(CBENVPAR cls, "<init>", "(JJIIJJJJJLhdf/hdf5lib/structs/H5O_hdr_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;Lhdf/hdf5lib/structs/H5_ih_info_t;)V");
                                if (constructor != 0) {
                                    cb_info_t = CBENVPTR->NewObjectA(CBENVPAR cls, constructor, args);

                                    status = CBENVPTR->CallIntMethod(CBENVPAR visit_callback, mid, g_id, str, cb_info_t, op_data);
                                }
                            }
                        }
                    }
                }
            }
        }
    } /* end if */
    JVMPTR->DetachCurrentThread(JVMPAR);

    return status;
} /* end H5O_iterate_cb */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Ovisit
 * Signature: (JIILjava/lang/Object;Ljava/lang/Object;I)I
 */
JNIEXPORT jint JNICALL
Java_hdf_hdf5lib_H5_H5Ovisit
    (JNIEnv *env, jclass clss, jlong grp_id, jint idx_type, jint order,
        jobject callback_op, jobject op_data, jint fields)
{
    herr_t   status = -1;

    ENVPTR->GetJavaVM(ENVPAR &jvm);
    visit_callback = callback_op;

    if (op_data == NULL) {
        h5nullArgument(env, "H5Ovisit:  op_data is NULL");
    } /* end if */
    else if (callback_op == NULL) {
        h5nullArgument(env, "H5Ovisit:  callback_op is NULL");
    } /* end if */
    else {
        status = H5Ovisit2((hid_t)grp_id, (H5_index_t)idx_type, (H5_iter_order_t)order, (H5O_iterate_t)H5O_iterate_cb, (void*)op_data, (unsigned)fields);

        if (status < 0)
            h5libraryError(env);
    }

    return status;
} /* end Java_hdf_hdf5lib_H5_H5Ovisit */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Ovisit_by_name
 * Signature: (JLjava/lang/String;IILjava/lang/Object;Ljava/lang/Object;IJ)I
 */
JNIEXPORT jint JNICALL
Java_hdf_hdf5lib_H5_H5Ovisit_1by_1name
    (JNIEnv *env, jclass clss, jlong grp_id, jstring name, jint idx_type, jint order,
        jobject callback_op, jobject op_data, jint fields, jlong access_id)
{
    herr_t        status = -1;
    const char   *lName;

    ENVPTR->GetJavaVM(ENVPAR &jvm);
    visit_callback = callback_op;

    if (op_data == NULL) {
        h5nullArgument(env, "H5Ovisit_by_name:  op_data is NULL");
        return -1;
    } /* end if */
    else if (callback_op == NULL) {
        h5nullArgument(env, "H5Ovisit_by_name:  callback_op is NULL");
        return -1;
    } /* end if */
    else {
        PIN_JAVA_STRING(name, lName);
        if (lName != NULL) {
            status = H5Ovisit_by_name2((hid_t)grp_id, lName, (H5_index_t)idx_type, (H5_iter_order_t)order, (H5O_iterate_t)H5O_iterate_cb, (void*)op_data, (unsigned)fields, (hid_t)access_id);

            UNPIN_JAVA_STRING(name, lName);

            if (status < 0)
                h5libraryError(env);
        }
    }

    return status;
} /* end Java_hdf_hdf5lib_H5_H5Ovisit_1by_1name */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oset_comment
 * Signature: (JLjava/lang/String;)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Oset_1comment
    (JNIEnv *env, jclass clss, jlong loc_id, jstring comment)
{
    herr_t      status = -1;
    const char *oComment = NULL;
    jboolean    isCopy;

    if (comment == NULL) {
        status = H5Oset_comment((hid_t)loc_id, oComment);
    } /* end if */
    else {
        oComment = ENVPTR->GetStringUTFChars(ENVPAR comment, &isCopy);
        if (oComment != NULL) {
            status = H5Oset_comment((hid_t)loc_id, oComment);

            ENVPTR->ReleaseStringUTFChars(ENVPAR comment, oComment);
        }
    } /* end else */

    if (status < 0)
        h5libraryError(env);
} /* end Java_hdf_hdf5lib_H5_H5Oset_1comment */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oset_comment_by_name
 * Signature: (JLjava/lang/String;Ljava/lang/String;J)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Oset_1comment_1by_1name
    (JNIEnv *env, jclass clss, jlong loc_id,
        jstring name, jstring comment, jlong access_id)
{
    herr_t      status = -1;
    const char *oName;
    const char *oComment;

    PIN_JAVA_STRING(name, oName);
    if (oName != NULL) {
        if (comment == NULL) {
            status = H5Oset_comment_by_name((hid_t)loc_id, oName, NULL, (hid_t)access_id);
        } /* end if */
        else {
            jboolean    isCopy;
            oComment = ENVPTR->GetStringUTFChars(ENVPAR comment, &isCopy);
            if (oComment != NULL) {
                status = H5Oset_comment_by_name((hid_t)loc_id, oName, oComment, (hid_t)access_id);
                ENVPTR->ReleaseStringUTFChars(ENVPAR comment, oComment);
            } /* end if */
        } /* end else */

        UNPIN_JAVA_STRING(name, oName);

        if (status < 0)
            h5libraryError(env);
    }
} /* end Java_hdf_hdf5lib_H5_H5Oset_1comment_1by_1name */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oget_comment
 * Signature: (J)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL
Java_hdf_hdf5lib_H5_H5Oget_1comment
    (JNIEnv *env, jclass clss, jlong loc_id)
{
    char    *oComment;
    ssize_t  buf_size;
    ssize_t  status;
    jstring  str = NULL;

    /* get the length of the comment */
    buf_size = H5Oget_comment((hid_t)loc_id, NULL, 0);
    if (buf_size < 0) {
        h5badArgument( env, "H5Oget_comment:  buf_size < 0");
    } /* end if */
    else if (buf_size > 0) {
        buf_size++; /* add extra space for the null terminator */
        oComment = (char *)HDmalloc(sizeof(char) * (size_t)buf_size);
        if (oComment == NULL) {
            /* exception -- out of memory */
            h5outOfMemory( env, "H5Oget_comment:  malloc failed");
        } /* end if */
        else {
            status = H5Oget_comment((hid_t)loc_id, oComment, (size_t)buf_size);

            if (status < 0) {
                h5libraryError(env);
            } /* end if */
            else {
                /*  may throw OutOfMemoryError */
                str = ENVPTR->NewStringUTF(ENVPAR oComment);
                if (str == NULL) {
                    h5JNIFatalError( env, "H5Oget_comment:  return string not allocated");
                } /* end if */
            } /* end else */
            HDfree(oComment);
        }
    } /* end else if */

    return (jstring)str;
} /* end Java_hdf_hdf5lib_H5_H5Oget_1comment */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oget_comment_by_name
 * Signature: (JLjava/lang/String;J)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL
Java_hdf_hdf5lib_H5_H5Oget_1comment_1by_1name
    (JNIEnv *env, jclass clss, jlong loc_id, jstring name, jlong access_id)
{
    char       *oComment;
    const char *oName;
    ssize_t     buf_size;
    ssize_t     status;
    jstring     str = NULL;

    PIN_JAVA_STRING(name, oName);
    if (oName != NULL) {
        /* get the length of the comment */
        buf_size = H5Oget_comment_by_name((hid_t)loc_id, oName, NULL, 0, (hid_t)access_id);
        if (buf_size < 0) {
            h5badArgument( env, "H5Oget_comment_by_name:  buf_size < 0");
        } /* end if */
        else if (buf_size > 0) {
            buf_size++; /* add extra space for the null terminator */
            oComment = (char *)HDmalloc(sizeof(char) * (size_t)buf_size);
            if (oComment == NULL) {
                h5outOfMemory( env, "H5Oget_comment_by_name:  malloc failed");
            } /* end if */
            else {
                status = H5Oget_comment_by_name((hid_t)loc_id, oName, oComment, (size_t)buf_size, (hid_t)access_id);

                if (status < 0) {
                    h5libraryError(env);
                } /* end if */
                else {
                    /*  may throw OutOfMemoryError */
                    str = ENVPTR->NewStringUTF(ENVPAR oComment);
                    if (str == NULL) {
                        h5JNIFatalError( env, "H5Oget_comment_by_name:  return string not allocated");
                    } /* end if */
                } /* end else */
                HDfree(oComment);
            }
        } /* end if */
        UNPIN_JAVA_STRING(name, oName);
    }

    return (jstring)str;
} /* end Java_hdf_hdf5lib_H5_H5Oget_1comment_1by_1name */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oexists_by_name
 * Signature: (JLjava/lang/String;J)Z
 */
JNIEXPORT jboolean JNICALL
Java_hdf_hdf5lib_H5_H5Oexists_1by_1name
    (JNIEnv *env, jclass clss, jlong loc_id, jstring name, jlong access_id)
{
    htri_t      bval = JNI_FALSE;
    const char *oName;

    PIN_JAVA_STRING(name, oName);
    if (oName != NULL) {
        bval = H5Oexists_by_name((hid_t)loc_id, oName, (hid_t)access_id);

        UNPIN_JAVA_STRING(name, oName);

        if (bval > 0)
            bval = JNI_TRUE;
        else if (bval < 0)
            h5libraryError(env);
    }

    return (jboolean)bval;
} /* end Java_hdf_hdf5lib_H5_H5Oexists_1by_1name */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Odecr_refcount
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Odecr_1refcount
    (JNIEnv *env, jclass clss, jlong object_id)
{
    if (H5Odecr_refcount((hid_t)object_id) < 0)
        h5libraryError(env);
}
/* end Java_hdf_hdf5lib_H5_H5Odecr_1refcount */
/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oincr_refcount
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Oincr_1refcount
    (JNIEnv *env, jclass clss, jlong object_id)
{
    if (H5Oincr_refcount((hid_t)object_id) < 0)
        h5libraryError(env);
} /* end Java_hdf_hdf5lib_H5_H5Oincr_1refcount */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    _H5Oopen_by_addr
 * Signature: (JJ)J;
 */
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5__1H5Oopen_1by_1addr
    (JNIEnv *env, jclass clss, jlong loc_id, jlong addr)
{
    hid_t retVal = -1;

    retVal = H5Oopen_by_addr((hid_t)loc_id, (haddr_t)addr );
    if (retVal < 0)
        h5libraryError(env);

    return (jlong)retVal;
} /* end Java_hdf_hdf5lib_H5__1H5Oopen_1by_1addr */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    _H5Oopen_by_idx
 * Signature: (JLjava/lang/String;IIJJ)J;
 */
JNIEXPORT jlong JNICALL
Java_hdf_hdf5lib_H5__1H5Oopen_1by_1idx
    (JNIEnv *env, jclass clss, jlong loc_id, jstring name,
        jint index_field, jint order, jlong link_n, jlong lapl_id)
{
    hid_t       retVal = -1;
    const char *oName;

    PIN_JAVA_STRING(name, oName);
    if (oName != NULL) {
        retVal = H5Oopen_by_idx((hid_t)loc_id, oName, (H5_index_t)index_field, (H5_iter_order_t)order, (hsize_t)link_n, (hid_t)lapl_id );

        UNPIN_JAVA_STRING(name, oName);

        if (retVal < 0)
            h5libraryError(env);
    }

    return (jlong)retVal;
} /* end Java_hdf_hdf5lib_H5__1H5Oopen_1by_1idx */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Oflush
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Oflush
    (JNIEnv *env, jclass clss, jlong loc_id)
{
    if (H5Oflush((hid_t)loc_id) < 0)
        h5libraryError(env);
} /* end Java_hdf_hdf5lib_H5_H5Oflush */

/*
 * Class:     hdf_hdf5lib_H5
 * Method:    H5Orefresh
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_hdf_hdf5lib_H5_H5Orefresh
    (JNIEnv *env, jclass clss, jlong loc_id)
{
    if (H5Orefresh((hid_t)loc_id) < 0)
        h5libraryError(env);
} /* end Java_hdf_hdf5lib_H5_H5Orefresh */



#ifdef __cplusplus
} /* end extern "C" */
#endif /* __cplusplus */