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
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: vfd_swmr_addrem_writer.c
* (copied and modified from swmr_addrem_writer.c)
*
* Purpose: Adds and removes data to a randomly selected subset of the
* datasets in the VFD SWMR test file.
*
* This program is intended to run concurrently with the
* vfd_swmr_reader program. It is also run AFTER a sequential
* (not concurrent!) invoking of vfd_swmr_writer so the writer
* can dump a bunch of data into the datasets. Otherwise,
* there wouldn't be much to shrink :)
*
*-------------------------------------------------------------------------
*/
/***********/
/* Headers */
/***********/
#include <err.h> /* errx(3) */
#include "h5test.h"
#include "vfd_swmr_common.h"
#include "swmr_common.h"
/****************/
/* Local Macros */
/****************/
/********************/
/* Local Prototypes */
/********************/
static hid_t open_skeleton(const char *filename, unsigned verbose);
static int addrem_records(hid_t fid, unsigned verbose, unsigned long nops,
unsigned long flush_count);
static void usage(void);
/*-------------------------------------------------------------------------
* Function: open_skeleton
*
* Purpose: Opens the SWMR HDF5 file and datasets.
*
* Parameters: const char *filename
* The filename of the SWMR HDF5 file to open
*
* unsigned verbose
* Whether or not to emit verbose console messages
*
* Return: Success: The file ID of the opened SWMR file
* The dataset IDs are stored in a global array
*
* Failure: -1
*
*-------------------------------------------------------------------------
*/
static hid_t
open_skeleton(const char *filename, unsigned verbose)
{
hid_t dapl = H5I_INVALID_HID;
hid_t fid = -1; /* File ID for new HDF5 file */
hid_t fapl = -1; /* File access property list */
hid_t sid = -1; /* Dataspace ID */
hsize_t dim[2]; /* Dataspace dimension */
unsigned u, v; /* Local index variable */
H5F_vfd_swmr_config_t *config = NULL; /* Configuration for VFD SWMR */
HDassert(filename);
if ((dapl = H5Pcreate(H5P_DATASET_ACCESS)) < 0)
errx(EXIT_FAILURE, "%s.%d: H5Pcreate failed", __func__, __LINE__);
if (H5Pset_chunk_cache(dapl, H5D_CHUNK_CACHE_NSLOTS_DEFAULT, 0,
H5D_CHUNK_CACHE_W0_DEFAULT) < 0)
errx(EXIT_FAILURE, "H5Pset_chunk_cache failed");
/* Allocate memory for the configuration structure */
if((config = calloc(1, sizeof(*config))) == NULL)
goto error;
/* config, tick_len, max_lag, writer, flush_raw_data, md_pages_reserved, md_file_path */
init_vfd_swmr_config(config, 4, 5 , TRUE, FALSE, 128, "./rw-shadow");
/* use_latest_format, use_vfd_swmr, only_meta_page, config */
if((fapl = vfd_swmr_create_fapl(TRUE, TRUE, FALSE, config)) < 0)
goto error;
/* Open the file */
if((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl)) < 0)
goto error;
/* Close file access property list */
if(H5Pclose(fapl) < 0)
goto error;
if(config)
HDfree(config);
/* Emit informational message */
if(verbose)
HDfprintf(stderr, "WRITER: Opening datasets\n");
/* Open the datasets */
for(u = 0; u < NLEVELS; u++)
for(v = 0; v < symbol_count[u]; v++) {
hid_t dsid;
if((dsid = H5Dopen2(fid, symbol_info[u][v].name, dapl)) < 0)
goto error;
symbol_info[u][v].dsid = dsid;
if((sid = H5Dget_space(symbol_info[u][v].dsid)) < 0)
goto error;
if(2 != H5Sget_simple_extent_ndims(sid))
goto error;
if(H5Sget_simple_extent_dims(sid, dim, NULL) < 0)
goto error;
symbol_info[u][v].nrecords = dim[1];
if(H5Sclose(sid) < 0)
goto error;
} /* end for */
return fid;
error:
if(config)
HDfree(config);
H5E_BEGIN_TRY {
for(u = 0; u < NLEVELS; u++)
for(v = 0; v < symbol_count[u]; v++)
H5Dclose(symbol_info[u][v].dsid);
H5Sclose(sid);
H5Pclose(fapl);
H5Fclose(fid);
H5Pclose(dapl);
} H5E_END_TRY;
return -1;
} /* open_skeleton() */
/*-------------------------------------------------------------------------
* Function: addrem_records
*
* Purpose: Adds/removes a specified number of records to random datasets
* to the SWMR test file.
*
* Parameters: hid_t fid
* The file ID of the SWMR HDF5 file
*
* unsigned verbose
* Whether or not to emit verbose console messages
*
* unsigned long nops
* # of records to read/write in the datasets
*
* unsigned long flush_count
* # of records to write before flushing the file to disk
*
* Return: Success: 0
* Failure: -1
*
*-------------------------------------------------------------------------
*/
static int
addrem_records(hid_t fid, unsigned verbose, unsigned long nops, unsigned long flush_count)
{
hid_t tid = -1; /* Datatype ID for records */
hid_t mem_sid = -1; /* Memory dataspace ID */
hid_t file_sid = -1; /* Dataset's space ID */
hsize_t start[2] = {0, 0}, count[2] = {1, 1}; /* Hyperslab selection values */
hsize_t dim[2] = {1, 0}; /* Dataspace dimensions */
symbol_t buf[MAX_SIZE_CHANGE]; /* Write buffer */
unsigned long op_to_flush; /* # of operations before flush */
unsigned long u, v; /* Local index variables */
HDassert(fid > 0);
/* Reset the buffer */
HDmemset(&buf, 0, sizeof(buf));
/* Create a dataspace for the record to add */
if((mem_sid = H5Screate_simple(2, count, NULL)) < 0)
goto error;
/* Create datatype for appending records */
if((tid = create_symbol_datatype()) < 0)
goto error;
/* Add and remove records to random datasets, according to frequency
* distribution */
op_to_flush = flush_count;
for(u=0; u<nops; u++) {
symbol_info_t *symbol; /* Symbol to write record to */
/* Get a random dataset, according to the symbol distribution */
symbol = choose_dataset(NULL, NULL);
/* Decide whether to shrink or expand, and by how much */
count[1] = (hsize_t)HDrandom() % (MAX_SIZE_CHANGE * 2) + 1;
if(count[1] > MAX_SIZE_CHANGE) {
/* Add records */
count[1] -= MAX_SIZE_CHANGE;
/* Set the buffer's IDs (equal to its position) */
for(v=0; v<count[1]; v++)
buf[v].rec_id = (uint64_t)symbol->nrecords + (uint64_t)v;
/* Set the memory space to the correct size */
if(H5Sset_extent_simple(mem_sid, 2, count, NULL) < 0)
goto error;
/* Get the coordinates to write */
start[1] = symbol->nrecords;
/* Extend the dataset's dataspace to hold the new record */
symbol->nrecords+= count[1];
dim[1] = symbol->nrecords;
if(H5Dset_extent(symbol->dsid, dim) < 0)
goto error;
/* Get the dataset's dataspace */
if((file_sid = H5Dget_space(symbol->dsid)) < 0)
goto error;
/* Choose the last record in the dataset */
if(H5Sselect_hyperslab(file_sid, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
goto error;
/* Write record to the dataset */
if(H5Dwrite(symbol->dsid, tid, mem_sid, file_sid, H5P_DEFAULT, &buf) < 0)
goto error;
if(H5Dflush(symbol->dsid) < 0)
goto error;
/* Close the dataset's dataspace */
if(H5Sclose(file_sid) < 0)
goto error;
} /* end if */
else {
/* Shrink the dataset's dataspace */
if(count[1] > symbol->nrecords)
symbol->nrecords = 0;
else
symbol->nrecords -= count[1];
dim[1] = symbol->nrecords;
if(H5Dset_extent(symbol->dsid, dim) < 0)
goto error;
} /* end else */
/* Check for flushing file */
if(flush_count > 0) {
/* Decrement count of records to write before flushing */
op_to_flush--;
/* Check for counter being reached */
if(0 == op_to_flush) {
/* Reset flush counter */
op_to_flush = flush_count;
} /* end if */
} /* end if */
} /* end for */
/* Emit informational message */
if(verbose)
HDfprintf(stderr, "WRITER: Closing datasets\n");
/* Close the datasets */
for(u = 0; u < NLEVELS; u++)
for(v = 0; v < symbol_count[u]; v++)
if(H5Dclose(symbol_info[u][v].dsid) < 0)
return -1;
return 0;
error:
H5E_BEGIN_TRY {
H5Sclose(mem_sid);
H5Sclose(file_sid);
H5Tclose(tid);
for(u = 0; u < NLEVELS; u++)
for(v = 0; v < symbol_count[u]; v++)
H5Dclose(symbol_info[u][v].dsid);
} H5E_END_TRY;
return -1;
} /* addrem_records() */
static void
usage(void)
{
printf("\n");
printf("Usage error!\n");
printf("\n");
printf("Usage: vfd_swmr_addrem_writer [-q] [-f <# of operations between flushing\n");
printf(" file contents>] [-r <random seed>] <# of operations>\n");
printf("\n");
printf("<# of operations between flushing file contents> should be 0 (for\n");
printf("no flushing) or between 1 and (<# of operations> - 1).\n");
printf("\n");
printf("<# of operations> must be specified.\n");
printf("\n");
printf("Defaults to verbose (no '-q' given), flushing every 1000 operations\n");
printf("('-f 1000'), and will generate a random seed (no -r given).\n");
printf("\n");
HDexit(1);
} /* usage() */
int main(int argc, const char *argv[])
{
sigset_t oldset;
hid_t fid; /* File ID for file opened */
long nops = 0; /* # of times to grow or shrink the dataset */
long flush_count = 1000; /* # of records to write between flushing file */
unsigned verbose = 1; /* Whether to emit some informational messages */
unsigned use_seed = 0; /* Set to 1 if a seed was set on the command line */
unsigned random_seed = 0; /* Random # seed */
unsigned u; /* Local index variable */
int temp;
block_signals(&oldset);
/* Parse command line options */
if(argc < 2)
usage();
if(argc > 1) {
u = 1;
while(u < (unsigned)argc) {
if(argv[u][0] == '-') {
switch(argv[u][1]) {
/* # of records to write between flushing file */
case 'f':
flush_count = HDatol(argv[u + 1]);
if(flush_count < 0)
usage();
u += 2;
break;
/* Be quiet */
case 'q':
verbose = 0;
u++;
break;
/* Random # seed */
case 'r':
use_seed = 1;
temp = HDatoi(argv[u + 1]);
if(temp < 0)
usage();
else
random_seed = (unsigned)temp;
u += 2;
break;
default:
usage();
break;
} /* end switch */
} /* end if */
else {
/* Get the number of records to append */
nops = HDatol(argv[u]);
if(nops <= 0)
usage();
u++;
} /* end else */
} /* end while */
} /* end if */
if(nops <= 0)
usage();
if(flush_count >= nops)
usage();
/* Emit informational message */
if(verbose) {
HDfprintf(stderr, "WRITER: Parameters:\n");
HDfprintf(stderr, "\t# of operations between flushes = %ld\n", flush_count);
HDfprintf(stderr, "\t# of operations = %ld\n", nops);
} /* end if */
/* Set the random seed */
if(0 == use_seed) {
struct timeval t;
HDgettimeofday(&t, NULL);
random_seed = (unsigned)(t.tv_usec);
} /* end if */
HDsrandom(random_seed);
/* ALWAYS emit the random seed for possible debugging */
HDfprintf(stderr, "WRITER: Using writer random seed: %u\n", random_seed);
/* Emit informational message */
if(verbose)
HDfprintf(stderr, "WRITER: Generating symbol names\n");
/* Generate dataset names */
if(generate_symbols() < 0)
return -1;
/* Emit informational message */
if(verbose) {
HDfprintf(stderr, "WRITER: Opening skeleton file: %s\n",
VFD_SWMR_FILENAME);
}
/* Open file skeleton */
if((fid = open_skeleton(VFD_SWMR_FILENAME, verbose)) < 0) {
HDfprintf(stderr, "WRITER: Error opening skeleton file!\n");
HDexit(1);
} /* end if */
/* Send a message to indicate "H5Fopen" is complete--releasing the file lock */
h5_send_message(VFD_SWMR_WRITER_MESSAGE, NULL, NULL);
/* Emit informational message */
if(verbose)
HDfprintf(stderr, "WRITER: Adding and removing records\n");
/* Grow and shrink datasets */
if(addrem_records(fid, verbose, (unsigned long)nops, (unsigned long)flush_count) < 0) {
HDfprintf(stderr, "WRITER: Error adding and removing records from datasets!\n");
HDexit(1);
} /* end if */
/* Emit informational message */
if(verbose)
HDfprintf(stderr, "WRITER: Releasing symbols\n");
/* Clean up the symbols */
if(shutdown_symbols() < 0) {
HDfprintf(stderr, "WRITER: Error releasing symbols!\n");
HDexit(1);
} /* end if */
await_signal(fid);
restore_signals(&oldset);
/* Emit informational message */
if(verbose)
HDfprintf(stderr, "WRITER: Closing objects\n");
/* Close objects opened */
if(H5Fclose(fid) < 0) {
HDfprintf(stderr, "WRITER: Error closing file!\n");
HDexit(1);
} /* end if */
return 0;
} /* main() */
|