summaryrefslogtreecommitdiffstats
path: root/test/dsets.c
blob: 7171b18f83c50b801203d997f91d2a08bc335a18 (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
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
/*
 * Copyright (C) 1997 NCSA
 *		      All rights reserved.
 *
 * Programmer:	Robb Matzke <matzke@llnl.gov>
 *		Tuesday, December  9, 1997
 *
 * Purpose:	Tests the dataset interface (H5D)
 */
#include <assert.h>
#include <hdf5.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <H5config.h>
#ifndef HAVE_ATTRIBUTE
#   undef __attribute__
#   define __attribute__(X) /*void*/
#   define __unused__ /*void*/
#else
#   define __unused__ __attribute__((unused))
#endif

#ifndef HAVE_FUNCTION
#   undef __FUNCTION__
#   define __FUNCTION__ ""
#endif

#define AT() printf ("	 at %s:%d in %s()...\n",			    \
		     __FILE__, __LINE__, __FUNCTION__);

#define TEST_FILE_NAME		"dataset.h5"
#define DSET_DEFAULT_NAME	"default"
#define DSET_CHUNKED_NAME	"chunked"
#define DSET_SIMPLE_IO_NAME	"simple_io"
#define DSET_TCONV_NAME		"tconv"
#define DSET_COMPRESS_NAME	"compressed"
#define DSET_BOGUS_NAME		"bogus"

#define H5Z_BOGUS		305


/*-------------------------------------------------------------------------
 * Function:	display_error_cb
 *
 * Purpose:	Displays the error stack after printing "*FAILED*".
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *		Wednesday, March  4, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
display_error_cb (void __unused__ *client_data)
{
    puts ("*FAILED*");
    H5Eprint (stdout);
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	test_create
 *
 * Purpose:	Attempts to create a dataset.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *		Tuesday, December  9, 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
test_create(hid_t file)
{
    hid_t	dataset, space, create_parms;
    hsize_t	dims[2];
    herr_t	status;
    hsize_t	csize[2];
    herr_t	(*func)(void*) = NULL;
    void	*client_data = NULL;

    printf("%-70s", "Testing create/open/close");
    fflush (stdout);

    /* Create the data space */
    dims[0] = 256;
    dims[1] = 512;
    space = H5Screate_simple(2, dims, NULL);
    assert(space>=0);

    /*
     * Create a dataset using the default dataset creation properties.	We're
     * not sure what they are, so we won't check.
     */
    dataset = H5Dcreate(file, DSET_DEFAULT_NAME, H5T_NATIVE_DOUBLE, space,
			H5P_DEFAULT);
    if (dataset<0) goto error;

    /* Close the dataset */
    if (H5Dclose(dataset) < 0) goto error;

    /* Add a comment to the dataset */
    status = H5Gset_comment(file, DSET_DEFAULT_NAME, "This is a dataset");
    if (status<0) goto error;

    /*
     * Try creating a dataset that already exists.  This should fail since a
     * dataset can only be created once.  Temporarily turn off error
     * reporting.
     */
    H5Eget_auto (&func, &client_data);
    H5Eset_auto (NULL, NULL);
    dataset = H5Dcreate(file, DSET_DEFAULT_NAME, H5T_NATIVE_DOUBLE, space,
			H5P_DEFAULT);
    H5Eset_auto (func, client_data);
    if (dataset >= 0) {
	puts("*FAILED*");
	printf("   Library allowed overwrite of existing dataset.\n");
	goto error;
    }
    
    /*
     * Open the dataset we created above and then close it.  This is how
     * existing datasets are accessed.
     */
    if ((dataset = H5Dopen(file, DSET_DEFAULT_NAME))<0) goto error;
    if (H5Dclose(dataset) < 0) goto error;
    
    /*
     * Try opening a non-existent dataset. This should fail since new datasets
     * cannot be created with this function.  Temporarily turn off error
     * reporting.
     */
    H5Eget_auto (&func, &client_data);
    H5Eset_auto (NULL, NULL);
    dataset = H5Dopen(file, "does_not_exist");
    H5Eset_auto (func, client_data);
    if (dataset >= 0) {
	puts("*FAILED*");
	printf("   Opened a non-existent dataset.\n");
	goto error;
    }

    /*
     * Create a new dataset that uses chunked storage instead of the default
     * layout.
     */
    create_parms = H5Pcreate(H5P_DATASET_CREATE);
    assert(create_parms >= 0);
    csize[0] = 5;
    csize[1] = 100;
    status = H5Pset_chunk(create_parms, 2, csize);
    assert(status >= 0);

    dataset = H5Dcreate(file, DSET_CHUNKED_NAME, H5T_NATIVE_DOUBLE, space,
			create_parms);
    if (dataset < 0) goto error;
    H5Pclose (create_parms);

    /*
     * Close the chunked dataset.
     */
    if (H5Dclose(dataset) < 0) goto error;

    puts(" PASSED");
    return 0;

 error:
    return -1;
}


/*-------------------------------------------------------------------------
 * Function:	test_simple_io
 *
 * Purpose:	Tests simple I/O.  That is, reading and writing a complete
 *		multi-dimensional array without data type or data space
 *		conversions, without compression, and stored contiguously.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *		Wednesday, December 10, 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
test_simple_io(hid_t file)
{
    hid_t		dataset, space, xfer;
    herr_t		status;
    int			points[100][200], check[100][200];
    int			i, j, n;
    hsize_t		dims[2];
    void		*tconv_buf = NULL;

    printf("%-70s", "Testing simple I/O");
    fflush (stdout);

    /* Initialize the dataset */
    for (i = n = 0; i < 100; i++) {
	for (j = 0; j < 100; j++) {
	    points[i][j] = n++;
	}
    }

    /* Create the data space */
    dims[0] = 100;
    dims[1] = 200;
    space = H5Screate_simple(2, dims, NULL);
    assert(space>=0);

    /* Create a small conversion buffer to test strip mining */
    tconv_buf = malloc (1000);
    xfer = H5Pcreate (H5P_DATASET_XFER);
    assert (xfer>=0);
    status = H5Pset_buffer (xfer, 1000, tconv_buf, NULL);
    assert (status>=0);

    /* Create the dataset */
    dataset = H5Dcreate(file, DSET_SIMPLE_IO_NAME, H5T_NATIVE_INT, space,
			H5P_DEFAULT);
    assert(dataset >= 0);

    /* Write the data to the dataset */
    status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		      xfer, points);
    if (status<0) goto error;

    /* Read the dataset back */
    status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		     xfer, check);
    if (status<0) goto error;

    /* Check that the values read are the same as the values written */
    for (i = 0; i < 100; i++) {
	for (j = 0; j < 200; j++) {
	    if (points[i][j] != check[i][j]) {
		puts("*FAILED*");
		printf("   Read different values than written.\n");
		printf("   At index %d,%d\n", i, j);
		goto error;
	    }
	}
    }

    H5Pclose (xfer);
    H5Dclose(dataset);
    free (tconv_buf);
    puts(" PASSED");
    return 0;

  error:
    return -1;
}

/*-------------------------------------------------------------------------
 * Function:	test_tconv
 *
 * Purpose:	Test some simple data type conversion stuff.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *		Wednesday, January 14, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
test_tconv(hid_t file)
{
    char	*out=NULL, *in=NULL;
    int		i;
    hsize_t	dims[1];
    hid_t	space, dataset;
    herr_t	status;

    out = malloc (4*1000000);
    assert (out);
    in = malloc (4*1000000);
    assert (in);

    printf("%-70s", "Testing data type conversion");
    fflush (stdout);
    
    /* Initialize the dataset */
    for (i = 0; i < 1000000; i++) {
	out[i*4+0] = 0x11;
	out[i*4+1] = 0x22;
	out[i*4+2] = 0x33;
	out[i*4+3] = 0x44;
    }

    /* Create the data space */
    dims[0] = 1000000;
    space = H5Screate_simple (1, dims, NULL);
    assert(space >= 0);

    /* Create the data set */
    dataset = H5Dcreate(file, DSET_TCONV_NAME, H5T_STD_I32LE, space,
			H5P_DEFAULT);
    assert(dataset >= 0);

    /* Write the data to the dataset */
    status = H5Dwrite(dataset, H5T_STD_I32LE, H5S_ALL, H5S_ALL,
		      H5P_DEFAULT, out);
    assert(status >= 0);

    /* Read data with byte order conversion */
    status = H5Dread(dataset, H5T_STD_I32BE, H5S_ALL, H5S_ALL,
		     H5P_DEFAULT, in);
    assert(status >= 0);

    /* Check */
    for (i = 0; i < 1000000; i++) {
	assert(in[4 * i + 0] == out[4 * i + 3]);
	assert(in[4 * i + 1] == out[4 * i + 2]);
	assert(in[4 * i + 2] == out[4 * i + 1]);
	assert(in[4 * i + 3] == out[4 * i + 0]);
    }

    H5Dclose(dataset);
    free (out);
    free (in);

    puts(" PASSED");
    return 0;
}


/*-------------------------------------------------------------------------
 * Function:	bogus
 *
 * Purpose:	A bogus compression method that doesn't do anything.
 *
 * Return:	Success:	Data chunk size
 *
 *		Failure:	0
 *
 * Programmer:	Robb Matzke
 *              Tuesday, April 21, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static size_t
bogus(unsigned int __unused__ flags, size_t __unused__ cd_nelmts,
      const unsigned int __unused__ cd_values[], size_t nbytes,
      size_t __unused__ *buf_size, void __unused__ **buf)
{
#if 0
    abort();
#endif
    return nbytes;
}


/*-------------------------------------------------------------------------
 * Function:	test_compression
 *
 * Purpose:	Tests dataset compression.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Wednesday, April 15, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
test_compression(hid_t file)
{
    hid_t		dataset, space, xfer, dc;
    herr_t		status;
    int			points[100][200], check[100][200];
    const hsize_t	size[2] = {100, 200};
    const hsize_t	chunk_size[2] = {2, 25};
    const hssize_t	hs_offset[2] = {7, 30};
    const hsize_t	hs_size[2] = {4, 50};
    
    hsize_t		i, j, n;
    void		*tconv_buf = NULL;

    printf ("%-70s", "Testing compression (setup)");
    fflush (stderr);
    
    /* Create the data space */
    space = H5Screate_simple(2, size, NULL);
    assert(space>=0);

    /*
     * Create a small conversion buffer to test strip mining. We
     * might as well test all we can!
     */
    xfer = H5Pcreate (H5P_DATASET_XFER);
    assert (xfer>=0);
    tconv_buf = malloc (1000);
    status = H5Pset_buffer (xfer, 1000, tconv_buf, NULL);
    assert (status>=0);

    /* Use chunked storage with compression */
    dc = H5Pcreate (H5P_DATASET_CREATE);
    H5Pset_chunk (dc, 2, chunk_size);
    H5Pset_deflate (dc, 6);

    /* Create the dataset */
    dataset = H5Dcreate(file, DSET_COMPRESS_NAME, H5T_NATIVE_INT, space, dc);
    assert(dataset >= 0);
    puts (" PASSED");

    /*----------------------------------------------------------------------
     * STEP 1: Read uninitialized data.  It should be zero.
     *---------------------------------------------------------------------- 
     */
    printf ("%-70s", "Testing compression (uninitialized read)");
    fflush (stdout);

    status = H5Dread (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		      xfer, check);
    if (status<0) goto error;
    
    for (i=0; i<size[0]; i++) {
	for (j=0; j<size[1]; j++) {
	    if (0!=check[i][j]) {
		puts("*FAILED*");
		printf("   Read a non-zero value.\n");
		printf("   At index %lu,%lu\n",
		       (unsigned long)i, (unsigned long)j);
		goto error;
	    }
	}
    }
    puts (" PASSED");

    /*----------------------------------------------------------------------
     * STEP 2: Test compression by setting up a chunked dataset and writing
     * to it.
     *---------------------------------------------------------------------- 
     */
    printf("%-70s", "Testing compression (write)");
    fflush (stdout);
    
    for (i=n=0; i<size[0]; i++) {
	for (j=0; j<size[1]; j++) {
	    points[i][j] = n++;
	}
    }

    status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		      xfer, points);
    if (status<0) goto error;
    puts (" PASSED");

    /*----------------------------------------------------------------------
     * STEP 3: Try to read the data we just wrote.
     *---------------------------------------------------------------------- 
     */
    printf ("%-70s", "Testing compression (read)");
    fflush (stdout);

    /* Read the dataset back */
    status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		     xfer, check);
    if (status<0) goto error;

    /* Check that the values read are the same as the values written */
    for (i=0; i<size[0]; i++) {
	for (j=0; j<size[1]; j++) {
	    if (points[i][j] != check[i][j]) {
		puts("*FAILED*");
		printf("   Read different values than written.\n");
		printf("   At index %lu,%lu\n",
		       (unsigned long)i, (unsigned long)j);
		goto error;
	    }
	}
    }
    puts (" PASSED");

    /*----------------------------------------------------------------------
     * STEP 4: Write new data over the top of the old data.  The new data is
     * random thus not very compressible, and will cause the chunks to move
     * around as they grow.  We only change values for the left half of the
     * dataset although we rewrite the whole thing.
     *---------------------------------------------------------------------- 
     */
    printf ("%-70s", "Testing compression (modify)");
    fflush (stdout);
    
    for (i=0; i<size[0]; i++) {
	for (j=0; j<size[1]/2; j++) {
	    points[i][j] = rand ();
	}
    }
    status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		       xfer, points);
    if (status<0) goto error;


    /* Read the dataset back and check it */
    status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		     xfer, check);
    if (status<0) goto error;

    /* Check that the values read are the same as the values written */
    for (i=0; i<size[0]; i++) {
	for (j=0; j<size[1]; j++) {
	    if (points[i][j] != check[i][j]) {
		puts("*FAILED*");
		printf("   Read different values than written.\n");
		printf("   At index %lu,%lu\n",
		       (unsigned long)i, (unsigned long)j);
		goto error;
	    }
	}
    }
    puts (" PASSED");

    /*----------------------------------------------------------------------
     * STEP 5: Close the dataset and then open it and read it again.  This
     * insures that the compression message is picked up properly from the
     * object header.
     *---------------------------------------------------------------------- 
     */
    printf ("%-70s", "Testing compression (re-open)");
    fflush (stdout);
    
    H5Dclose (dataset);
    dataset = H5Dopen (file, DSET_COMPRESS_NAME);
    status = H5Dread(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		     xfer, check);
    if (status<0) goto error;

    /* Check that the values read are the same as the values written */
    for (i=0; i<size[0]; i++) {
	for (j=0; j<size[1]; j++) {
	    if (points[i][j] != check[i][j]) {
		puts("*FAILED*");
		printf("   Read different values than written.\n");
		printf("   At index %lu,%lu\n",
		       (unsigned long)i, (unsigned long)j);
		goto error;
	    }
	}
    }
    puts (" PASSED");


    /*----------------------------------------------------------------------
     * STEP 6: Test partial I/O by writing to and then reading from a
     * hyperslab of the dataset.  The hyperslab does not line up on chunk
     * boundaries (we know that case already works from above tests).
     *---------------------------------------------------------------------- 
     */
    printf ("%-70s", "Testing compression (partial I/O)");
    fflush (stderr);

    for (i=0; i<hs_size[0]; i++) {
	for (j=0; j<hs_size[1]; j++) {
	    points[hs_offset[0]+i][hs_offset[1]+j] = rand ();
	}
    }
    H5Sselect_hyperslab(space, H5S_SELECT_SET, hs_offset, NULL, hs_size, NULL);

    status = H5Dwrite (dataset, H5T_NATIVE_INT, space, space, xfer, points);
    if (status<0) goto error;
    status = H5Dread (dataset, H5T_NATIVE_INT, space, space, xfer, check);
    if (status<0) goto error;
    
    /* Check that the values read are the same as the values written */
    for (i=0; i<hs_size[0]; i++) {
	for (j=0; j<hs_size[1]; j++) {
	    if (points[hs_offset[0]+i][hs_offset[1]+j] !=
		check[hs_offset[0]+i][hs_offset[1]+j]) {
		puts("*FAILED*");
		printf("   Read different values than written.\n");
		printf("   At index %lu,%lu\n",
		       (unsigned long)(hs_offset[0]+i),
		       (unsigned long)(hs_offset[1]+j));
		printf("   At original: %d\n",
		       (int)points[hs_offset[0]+i][hs_offset[1]+j]);
		printf("   At returned: %d\n",
		       (int)check[hs_offset[0]+i][hs_offset[1]+j]);
		goto error;
	    }
	}
    }
    puts (" PASSED");

    /*----------------------------------------------------------------------
     * STEP 7: Register an application-defined compression method and use it
     * to write and then read the dataset.
     *---------------------------------------------------------------------- 
     */
    printf ("%-70s", "Testing compression (app-defined method)");
    fflush (stdout);

    if (H5Zregister (H5Z_BOGUS, "bogus", bogus)<0) goto error;
    if (H5Pset_filter (dc, H5Z_BOGUS, 0, 0, NULL)<0) goto error;
    if (H5Dclose (dataset)<0) goto error;
    if (H5Sclose (space)<0) goto error;
    if ((space = H5Screate_simple (2, size, NULL))<0) goto error;
    dataset = H5Dcreate (file, DSET_BOGUS_NAME, H5T_NATIVE_INT, space, dc);
    assert (dataset>=0);

    status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		       xfer, points);
    if (status<0) goto error;
    status = H5Dread (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
		      xfer, check);
    if (status<0) goto error;
    
    for (i=0; i<size[0]; i++) {
	for (j=0; j<size[1]; j++) {
	    if (points[i][j] != check[i][j]) {
		puts("*FAILED*");
		printf("   Read different values than written.\n");
		printf("   At index %lu,%lu\n",
		       (unsigned long)i, (unsigned long)j);
		goto error;
	    }
	}
    }
    puts (" PASSED");
    
			 
  
    /*----------------------------------------------------------------------
     * Cleanup
     *---------------------------------------------------------------------- 
     */
    H5Pclose (xfer);
    H5Pclose (dc);
    H5Dclose(dataset);
    free (tconv_buf);
    return 0;

  error:
    return -1;
}


/*-------------------------------------------------------------------------
 * Function:	test_multiopen
 *
 * Purpose:	Tests that a bug no longer exists.  If a dataset is opened
 *		twice and one of the handles is used to extend the dataset,
 *		then the other handle should return the new size when
 *		queried.
 *
 * Return:	Success:	0
 *
 *		Failure:	-1
 *
 * Programmer:	Robb Matzke
 *              Tuesday, June  9, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static herr_t
test_multiopen (hid_t file)
{
    hid_t		dcpl=-1, space=-1, dset1=-1, dset2=-1;
    hsize_t		cur_size[1] = {10};
    static hsize_t	max_size[1] = {H5S_UNLIMITED};
    hsize_t		tmp_size[1];

    printf ("%-70s", "Testing multi-open with extending");

    /* Create the dataset and open it twice */
    if ((dcpl=H5Pcreate (H5P_DATASET_CREATE))<0) goto error;
    if (H5Pset_chunk (dcpl, 1, cur_size)<0) goto error;
    if ((space=H5Screate_simple (1, cur_size, max_size))<0) goto error;
    if ((dset1=H5Dcreate (file, "multiopen", H5T_NATIVE_INT, space,
			  dcpl))<0) goto error;
    if ((dset2=H5Dopen (file, "multiopen"))<0) goto error;
    if (H5Sclose (space)<0) goto error;

    /* Extend with the first handle */
    cur_size[0] = 20;
    if (H5Dextend (dset1, cur_size)<0) goto error;

    /* Get the size from the second handle */
    if ((space = H5Dget_space (dset2))<0) goto error;
    if (H5Sextent_dims (space, tmp_size, NULL)<0) goto error;
    if (cur_size[0]!=tmp_size[0]) {
	puts ("*FAILED*");
	printf ("   Got %d instead of %d!\n",
		(int)tmp_size[0], (int)cur_size[0]);
	goto error;
    }
    
    if (H5Dclose (dset1)<0) goto error;
    if (H5Dclose (dset2)<0) goto error;
    if (H5Sclose (space)<0) goto error;
    if (H5Pclose (dcpl)<0) goto error;
    puts (" PASSED");
    return 0;
    
 error:
    H5E_BEGIN_TRY {
	H5Dclose (dset1);
	H5Dclose (dset2);
	H5Sclose (space);
	H5Pclose (dcpl);
    } H5E_END_TRY;
    return -1;
}


/*-------------------------------------------------------------------------
 * Function:	cleanup
 *
 * Purpose:	Cleanup temporary test files
 *
 * Return:	none
 *
 * Programmer:	Albert Cheng
 *              May 28, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
cleanup(void)
{
    if (!getenv ("HDF5_NOCLEANUP")) {
	remove(TEST_FILE_NAME);
    }
}


/*-------------------------------------------------------------------------
 * Function:	main
 *
 * Purpose:	Tests the dataset interface (H5D)
 *
 * Return:	Success:	exit(0)
 *
 *		Failure:	exit(1)
 *
 * Programmer:	Robb Matzke
 *		Tuesday, December  9, 1997
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
int
main(void)
{
    hid_t		file, grp, fapl;
    herr_t		status;
    int			nerrors=0, mdc_nelmts;
    size_t		rdcc_nbytes;
    double		rdcc_w0;

    status = H5open ();
    assert (status>=0);

    /* Automatic error reporting to standard output */
    H5Eset_auto (display_error_cb, NULL);

    /* Create the file */
    fapl = H5Pcreate(H5P_FILE_ACCESS);
    assert(fapl>=0);

#if 1
    /* Turn off raw data cache */
    status = H5Pget_cache(fapl, &mdc_nelmts, &rdcc_nbytes, &rdcc_w0);
    assert(status>=0);
    status = H5Pset_cache(fapl, mdc_nelmts, 0, rdcc_w0);
    assert(status>=0);
#endif
    
    file = H5Fcreate(TEST_FILE_NAME, H5F_ACC_TRUNC|H5F_ACC_DEBUG,
		     H5P_DEFAULT, fapl);
    assert(file >= 0);
    H5Pclose(fapl);

    /* Cause the library to emit initial messages */
    grp = H5Gcreate (file, "emit diagnostics", 0);
    H5Gset_comment(grp, ".", "Causes diagnostic messages to be emitted");
    H5Gclose (grp);

    

    status = test_create(file);
    nerrors += status < 0 ? 1 : 0;

    status = test_simple_io(file);
    nerrors += status < 0 ? 1 : 0;

    status = test_tconv(file);
    nerrors += status < 0 ? 1 : 0;
    
    status = test_compression(file);
    nerrors += status < 0 ? 1 : 0;

    status = test_multiopen (file);
    nerrors += status < 0 ? 1 : 0;

    status = H5Fclose(file);

    if (nerrors) {
	printf("***** %d DATASET TEST%s FAILED! *****\n",
	       nerrors, 1 == nerrors ? "" : "S");
	exit(1);
    }
    printf("All dataset tests passed.\n");

    status = H5close ();
    assert (status>=0);
    
    cleanup();
    return 0;
}