summaryrefslogtreecommitdiffstats
path: root/test/use_disable_mdc_flushes.c
blob: d40e56df676ed37e5915b1c6bddc92117d77d705 (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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 * This is copied from use_append_chunk.c with modifications to show
 * the usage of H5Odisable_mdc_flushes/H5Oenable_mdc_flushes/H5Oare_mdc_flushes_disabled public routines.
 */

#include "h5test.h"

/* This test uses many POSIX things that are not available on
 * Windows.
 */
#ifdef H5_HAVE_UNISTD_H

#define H5D_FRIEND /*suppress error about including H5Dpkg      */
#define H5D_TESTING
#include "H5Dpkg.h"

/* Global Variable definitions */
const char *progname_g = "use_disable_mdc_flushes"; /* program name */

/* these two definitions must match each other */
#define UC_DATATYPE   H5T_NATIVE_SHORT /* use case HDF5 data type */
#define UC_CTYPE      short            /* use case C data type */
#define UC_RANK       3                /* use case dataset rank */
#define Chunksize_DFT 256              /* chunksize default */
#define Hgoto_error(val)                                                                                     \
    {                                                                                                        \
        ret_value = val;                                                                                     \
        goto done;                                                                                           \
    }

char *  filename_g;
hsize_t nplanes_g;
int     use_swmr_g;
int     chunkplanes_g;
int     chunksize_g;
hsize_t dims_g[UC_RANK];
hsize_t max_dims_g[UC_RANK];
hsize_t chunkdims_g[UC_RANK];

static void usage(const char *prog);
static int  parse_option(int argc, char *const argv[]);
static void show_parameters(void);
static int  create_file(void);
static int  setup_parameters(int argc, char *const argv[]);

/*
 * Note: Long options are not yet implemented.
 *
 * usage: use_disable_mdc_flushes [OPTIONS]
 * OPTIONS
 *  -h, --help           Print a usage message and exit
 *  -f FN                 Test file name [default: use_disable_mdc_flushes.h5]
 *  -n N, --nplanes=N     Number of planes to write. [default: 1000]
 *  -s N, --swmr=N        Use SWMR mode (0: no, non-0: yes) default is yes
 *  -z N, --chunksize=N   Chunk size [default: 256]
 *  -y N, --chunkplanes=N Number of planes per chunk [default: 1]
 */
static void
usage(const char *prog)
{
    HDfprintf(stderr, "usage: %s [OPTIONS]\n", prog);
    HDfprintf(stderr, "  OPTIONS\n");
    HDfprintf(stderr, "     -h          Print a usage message and exit\n");
    HDfprintf(stderr, "     -f FN       Test file name [default: %s.h5]\n", prog);
    HDfprintf(stderr, "     -n N        Number of planes to write. [default: 1000]\n");
    HDfprintf(stderr, "     -s N        Use SWMR mode (0: no, non-0: yes) default is yes\n");
    HDfprintf(stderr, "     -z N        Chunk size [default: %d]\n", Chunksize_DFT);
    HDfprintf(stderr, "     -y N        Number of planes per chunk [default: 1]\n");
    HDfprintf(stderr, "\n");
} /* usage() */

/*
 * Setup Use Case parameters by parsing command line options.
 * Setup default values if not set by options. */
static int
parse_option(int argc, char *const argv[])
{
    int ret_value = 0;
    int c;
    /* command line options: See function usage for a description */
    const char *cmd_options = "f:hn:s:y:z:";

    /* suppress getopt from printing error */
    opterr = 0;

    while (1) {
        c = getopt(argc, argv, cmd_options);
        if (-1 == c)
            break;
        switch (c) {
            case 'h':
                usage(progname_g);
                HDexit(EXIT_SUCCESS);
                break;
            case 'f': /* usecase data file name */
                filename_g = optarg;
                break;
            case 'n': /* number of planes to write/read */
                if ((nplanes_g = (hsize_t)HDatoi(optarg)) <= 0) {
                    HDfprintf(stderr, "bad number of planes %s, must be a positive integer\n", optarg);
                    usage(progname_g);
                    Hgoto_error(-1);
                };
                break;
            case 's': /* use swmr file open mode */
                if ((use_swmr_g = HDatoi(optarg)) < 0) {
                    HDfprintf(stderr, "swmr value should be 0(no) or 1(yes)\n");
                    usage(progname_g);
                    Hgoto_error(-1);
                };
                break;
            case 'y': /* Number of planes per chunk */
                if ((chunkplanes_g = HDatoi(optarg)) <= 0) {
                    HDfprintf(stderr, "bad number of planes per chunk %s, must be a positive integer\n",
                              optarg);
                    usage(progname_g);
                    Hgoto_error(-1);
                };
                break;
            case 'z': /* size of chunk=(z,z) */
                if ((chunksize_g = HDatoi(optarg)) <= 0) {
                    HDfprintf(stderr, "bad chunksize %s, must be a positive integer\n", optarg);
                    usage(progname_g);
                    Hgoto_error(-1);
                };
                break;
            case '?':
                HDfprintf(stderr, "getopt returned '%c'.\n", c);
                Hgoto_error(-1);
            default:
                HDfprintf(stderr, "getopt returned unexpected value.\n");
                HDfprintf(stderr, "Unexpected value is %d\n", c);
                Hgoto_error(-1);
        }
    }

    /* set test file name if not given */
    if (!filename_g) {
        /* default data file name is <progname>.h5 */
        if ((filename_g = (char *)HDmalloc(HDstrlen(progname_g) + 4)) == NULL) {
            HDfprintf(stderr, "malloc: failed\n");
            Hgoto_error(-1);
        };
        HDstrcpy(filename_g, progname_g);
        HDstrcat(filename_g, ".h5");
    }

done:
    /* All done. */
    return (ret_value);
} /* parse_option() */

/* Show parameters used for this use case */
static void
show_parameters(void)
{
    HDprintf("===Parameters used:===\n");
    HDprintf("chunk dims=(%llu, %llu, %llu)\n", (unsigned long long)chunkdims_g[0],
             (unsigned long long)chunkdims_g[1], (unsigned long long)chunkdims_g[2]);
    HDprintf("dataset max dims=(%llu, %llu, %llu)\n", (unsigned long long)max_dims_g[0],
             (unsigned long long)max_dims_g[1], (unsigned long long)max_dims_g[2]);
    HDprintf("number of planes to write=%llu\n", (unsigned long long)nplanes_g);
    HDprintf("using SWMR mode=%s\n", use_swmr_g ? "yes(1)" : "no(0)");
    HDprintf("data filename=%s\n", filename_g);
    HDprintf("===Parameters shown===\n");
} /* show_parameters() */

/*
 * Setup parameters for the use case.
 * Return: 0 succeed; -1 fail.
 */
static int
setup_parameters(int argc, char *const argv[])
{
    /* use case defaults */
    chunksize_g   = Chunksize_DFT;
    use_swmr_g    = 1; /* use swmr open */
    chunkplanes_g = 1;

    /* parse options */
    if (parse_option(argc, argv) < 0) {
        return (-1);
    }
    /* set chunk dims */
    chunkdims_g[0] = (hsize_t)chunkplanes_g;
    chunkdims_g[1] = chunkdims_g[2] = (hsize_t)chunksize_g;

    /* set dataset initial and max dims */
    dims_g[0]     = 0;
    max_dims_g[0] = H5S_UNLIMITED;
    dims_g[1] = dims_g[2] = max_dims_g[1] = max_dims_g[2] = (hsize_t)chunksize_g;

    /* set nplanes */
    if (nplanes_g == 0)
        nplanes_g = (hsize_t)chunksize_g;

    /* show parameters and return */
    show_parameters();
    return (0);
} /* setup_parameters() */

/*
 * Create the skeleton use case file for testing.
 * It has one 3d dataset using chunked storage.
 * The dataset is (unlimited, chunksize, chunksize).
 * Dataset type is 2 bytes integer.
 * It starts out "empty", i.e., first dimension is 0.
 *
 * Return: 0 succeed; -1 fail.
 */
static int
create_file(void)
{
    hsize_t           dims[3];  /* Dataset starting dimensions */
    hid_t             fid;      /* File ID for new HDF5 file */
    hid_t             dcpl;     /* Dataset creation property list */
    hid_t             sid;      /* Dataspace ID */
    hid_t             dsid;     /* Dataset ID */
    hid_t             fapl;     /* File access property list */
    H5D_chunk_index_t idx_type; /* Chunk index type */

    /* Create the file */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        return -1;
    if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
        return -1;
    if ((fid = H5Fcreate(filename_g, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
        return -1;

    /* Set up dimension sizes */
    dims[0] = 0;
    dims[1] = dims[2] = max_dims_g[1];

    /* Create dataspace for creating datasets */
    if ((sid = H5Screate_simple(3, dims, max_dims_g)) < 0)
        return -1;

    /* Create dataset creation property list */
    if ((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        return -1;
    if (H5Pset_chunk(dcpl, 3, chunkdims_g) < 0)
        return -1;

    /* create dataset of progname */
    if ((dsid = H5Dcreate2(fid, progname_g, UC_DATATYPE, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        return -1;

    /* Check that the chunk index type is not version 1 B-tree.
     * Version 1 B-trees are not supported under SWMR.
     */
    if (H5D__layout_idx_type_test(dsid, &idx_type) < 0)
        return -1;
    if (idx_type == H5D_CHUNK_IDX_BTREE) {
        HDfprintf(stderr, "ERROR: Chunk index is version 1 B-tree: aborting.\n");
        return -1;
    }

    /* Close everything */
    if (H5Dclose(dsid) < 0)
        return -1;
    if (H5Pclose(fapl) < 0)
        return -1;
    if (H5Pclose(dcpl) < 0)
        return -1;
    if (H5Sclose(sid) < 0)
        return -1;
    if (H5Fclose(fid) < 0)
        return -1;

    return 0;
} /* create_file() */

/*
 * Append planes, each of (1,2*chunksize,2*chunksize) to the dataset.
 * In other words, 4 chunks are appended to the dataset at a time.
 * Fill each plane with the plane number and then write it at the nth plane.
 * Increase the plane number and repeat till the end of dataset, when it
 * reaches chunksize long. End product is a (2*chunksize)^3 cube.
 *
 * Return: 0 succeed; -1 fail.
 */
static int
write_file(void)
{
    hid_t     fid;  /* File ID for new HDF5 file */
    hid_t     dsid; /* dataset ID */
    hid_t     fapl; /* File access property list */
    hid_t     dcpl; /* Dataset creation property list */
    char *    name;
    UC_CTYPE *buffer, *bufptr;                /* data buffer */
    hsize_t   cz = (hsize_t)chunksize_g;      /* Chunk size */
    hid_t     f_sid;                          /* dataset file space id */
    hid_t     m_sid;                          /* memory space id */
    int       rank;                           /* rank */
    hsize_t   chunk_dims[3];                  /* Chunk dimensions */
    hsize_t   dims[3];                        /* Dataspace dimensions */
    hsize_t   memdims[3];                     /* Memory space dimensions */
    hsize_t   start[3] = {0, 0, 0}, count[3]; /* Hyperslab selection values */
    hbool_t   disabled;                       /* Object's disabled status */
    hsize_t   i, j, k;

    name = filename_g;

    /* Open the file */
    if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
        return -1;
    if (use_swmr_g)
        if (H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
            return -1;
    if ((fid = H5Fopen(name, H5F_ACC_RDWR | (use_swmr_g ? H5F_ACC_SWMR_WRITE : 0), fapl)) < 0) {
        HDfprintf(stderr, "H5Fopen failed\n");
        return -1;
    }

    /* Open the dataset of the program name */
    if ((dsid = H5Dopen2(fid, progname_g, H5P_DEFAULT)) < 0) {
        HDfprintf(stderr, "H5Dopen2 failed\n");
        return -1;
    }

    /* Disabled mdc flushed for the dataset */
    if (H5Odisable_mdc_flushes(dsid) < 0) {
        HDfprintf(stderr, "H5Odisable_mdc_flushes failed\n");
        return -1;
    }

    /* Get mdc disabled status of the dataset */
    if (H5Oare_mdc_flushes_disabled(dsid, &disabled) < 0) {
        HDfprintf(stderr, "H5Oare_mdc_flushes_disabled failed\n");
        return -1;
    }
    else if (disabled)
        HDprintf("Dataset has disabled mdc flushes.\n");
    else
        HDprintf("Dataset should have disabled its mdc flushes.\n");

    /* Find chunksize used */
    if ((dcpl = H5Dget_create_plist(dsid)) < 0) {
        HDfprintf(stderr, "H5Dget_create_plist failed\n");
        return -1;
    }
    if (H5D_CHUNKED != H5Pget_layout(dcpl)) {
        HDfprintf(stderr, "storage layout is not chunked\n");
        return -1;
    }
    if ((rank = H5Pget_chunk(dcpl, 3, chunk_dims)) != 3) {
        HDfprintf(stderr, "storage rank is not 3\n");
        return -1;
    }

    /* verify chunk_dims against set parameters */
    if (chunk_dims[0] != chunkdims_g[0] || chunk_dims[1] != cz || chunk_dims[2] != cz) {
        HDfprintf(stderr, "chunk size is not as expected. Got dims=(%llu,%llu,%llu)\n",
                  (unsigned long long)chunk_dims[0], (unsigned long long)chunk_dims[1],
                  (unsigned long long)chunk_dims[2]);
        return -1;
    }

    /* allocate space for data buffer 1 X dims[1] X dims[2] of UC_CTYPE */
    memdims[0] = 1;
    memdims[1] = dims_g[1];
    memdims[2] = dims_g[2];
    if ((buffer = (UC_CTYPE *)HDmalloc((size_t)memdims[1] * (size_t)memdims[2] * sizeof(UC_CTYPE))) == NULL) {
        HDfprintf(stderr, "malloc: failed\n");
        return -1;
    };

    /*
     * Get dataset rank and dimension.
     */
    f_sid = H5Dget_space(dsid); /* Get filespace handle first. */
    rank  = H5Sget_simple_extent_ndims(f_sid);
    if (rank != UC_RANK) {
        HDfprintf(stderr, "rank(%d) of dataset does not match\n", rank);
        return -1;
    }
    if (H5Sget_simple_extent_dims(f_sid, dims, NULL) < 0) {
        HDfprintf(stderr, "H5Sget_simple_extent_dims got error\n");
        return -1;
    }
    HDprintf("dataset rank %d, dimensions %llu x %llu x %llu\n", rank, (unsigned long long)(dims[0]),
             (unsigned long long)(dims[1]), (unsigned long long)(dims[2]));
    /* verify that file space dims are as expected and are consistent with memory space dims */
    if (dims[0] != 0 || dims[1] != memdims[1] || dims[2] != memdims[2]) {
        HDfprintf(stderr, "dataset is not empty. Got dims=(%llu,%llu,%llu)\n", (unsigned long long)dims[0],
                  (unsigned long long)dims[1], (unsigned long long)dims[2]);
        return -1;
    }

    /* setup mem-space for buffer */
    if ((m_sid = H5Screate_simple(rank, memdims, NULL)) < 0) {
        HDfprintf(stderr, "H5Screate_simple for memory failed\n");
        return -1;
    };

    /* write planes */
    count[0] = 1;
    count[1] = dims[1];
    count[2] = dims[2];
    for (i = 0; i < nplanes_g; i++) {
        /* fill buffer with value i+1 */
        bufptr = buffer;
        for (j = 0; j < dims[1]; j++)
            for (k = 0; k < dims[2]; k++) {
                if (i > SHRT_MAX) {
                    HDfprintf(stderr, "rank(%d) of dataset overflow\n", rank);
                    return -1;
                }
                *bufptr++ = (short)i;
            }

        /* extend the dataset by one for new plane */
        dims[0] = i + 1;
        if (H5Dset_extent(dsid, dims) < 0) {
            HDfprintf(stderr, "H5Dset_extent failed\n");
            return -1;
        }

        /* Get the dataset's dataspace */
        if ((f_sid = H5Dget_space(dsid)) < 0) {
            HDfprintf(stderr, "H5Dset_extent failed\n");
            return -1;
        }

        start[0] = i;
        /* Choose the next plane to write */
        if (H5Sselect_hyperslab(f_sid, H5S_SELECT_SET, start, NULL, count, NULL) < 0) {
            HDfprintf(stderr, "Failed H5Sselect_hyperslab\n");
            return -1;
        }

        /* Write plane to the dataset */
        if (H5Dwrite(dsid, UC_DATATYPE, m_sid, f_sid, H5P_DEFAULT, buffer) < 0) {
            HDfprintf(stderr, "Failed H5Dwrite\n");
            return -1;
        }

        /* Flush the dataset for every "chunkplanes_g" planes */
        if (!((i + 1) % (hsize_t)chunkplanes_g)) {
            if (H5Dflush(dsid) < 0) {
                HDfprintf(stderr, "Failed to H5Dflush dataset\n");
                return -1;
            }
        }
    }

    if (H5Dflush(dsid) < 0) {
        HDfprintf(stderr, "Failed to H5Dflush dataset\n");
        return -1;
    }

    /* Enable mdc flushes for the dataset */
    /* Closing the dataset later will enable mdc flushes automatically if this is not done */
    if (disabled)
        if (H5Oenable_mdc_flushes(dsid) < 0) {
            HDfprintf(stderr, "Failed to H5Oenable_mdc_flushes\n");
            return -1;
        }

    /* Done writing. Free/Close all resources including data file */
    HDfree(buffer);

    if (H5Dclose(dsid) < 0) {
        HDfprintf(stderr, "Failed to close datasete\n");
        return -1;
    }
    if (H5Sclose(m_sid) < 0) {
        HDfprintf(stderr, "Failed to close memory space\n");
        return -1;
    }
    if (H5Sclose(f_sid) < 0) {
        HDfprintf(stderr, "Failed to close file space\n");
        return -1;
    }
    if (H5Pclose(fapl) < 0) {
        HDfprintf(stderr, "Failed to property list\n");
        return -1;
    }
    if (H5Fclose(fid) < 0) {
        HDfprintf(stderr, "Failed to close file id\n");
        return -1;
    }

    return 0;
} /* write_file() */

/* Overall Algorithm:
 * Parse options from user;
 * Generate/pre-created test files needed and close it;
 * Write to the file.
 */
int
main(int argc, char *argv[])
{
    int ret_value = 0;

    /* initialization */
    if (setup_parameters(argc, argv) < 0)
        Hgoto_error(1);

    /* ============*/
    /* Create file */
    /* ============*/
    HDprintf("Creating skeleton data file for testing H5Odisable_mdc_flushes()...\n");
    if (create_file() < 0) {
        HDfprintf(stderr, "***encounter error\n");
        Hgoto_error(1);
    } /* end if */
    else
        HDprintf("File created.\n");

    HDprintf("writing to the file\n");
    if (write_file() < 0) {
        HDfprintf(stderr, "write_file encountered error\n");
        Hgoto_error(1);
    }

done:
    /* Print result and exit */
    if (ret_value != 0)
        HDprintf("Error(s) encountered\n");
    else
        HDprintf("All passed\n");

    return (ret_value);
}

#else /* H5_HAVE_UNISTD_H */

int
main(void)
{
    HDfprintf(stderr, "Non-POSIX platform. Skipping.\n");
    HDexit(EXIT_SUCCESS);
} /* end main() */

#endif /* H5_HAVE_UNISTD_H */