summaryrefslogtreecommitdiffstats
path: root/tools/h5diff/h5diff_common.c
blob: c0bad1c368443148c9dea565c104bf530c745ba9 (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
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include <stdlib.h>
#include <string.h>
#include "h5diff.h"
#include "h5diff_common.h"
#include "h5tools_utils.h"

static int check_n_input( const char* );
static int check_p_input( const char* );
static int check_d_input( const char* );


/* module-scoped variables */
const char  *progname = "h5diff";

/*
 * Command-line options: The user can specify short or long-named
 * parameters.
 */
static const char *s_opts = "hVrvqn:d:p:Nc";
static struct long_options l_opts[] = {
    { "help", no_arg, 'h' },
    { "version", no_arg, 'V' },
    { "report", no_arg, 'r' },
    { "verbose", no_arg, 'v' },
    { "quiet", no_arg, 'q' },
    { "count", require_arg, 'n' },
    { "delta", require_arg, 'd' },
    { "relative", require_arg, 'p' },
    { "nan", no_arg, 'N' },
    { "compare", no_arg, 'c' },
    { "use-system-epsilon", no_arg, 'e' },
    { NULL, 0, '\0' }
};


/*-------------------------------------------------------------------------
 * Function: parse_command_line
 *
 * Purpose: parse command line input
 *
 *-------------------------------------------------------------------------
 */

void parse_command_line(int argc,
                        const char* argv[],
                        const char** fname1,
                        const char** fname2,
                        const char** objname1,
                        const char** objname2,
                        diff_opt_t* options)
{

    int opt;

    /* process the command-line */
    memset(options, 0, sizeof (diff_opt_t));

    /* assume equal contents initially */
    options->contents = 1;

    /* NaNs are handled by default */
    options->do_nans = 1;

    /* parse command line options */
    while ((opt = get_option(argc, argv, s_opts, l_opts)) != EOF)
    {
        switch ((char)opt)
        {
        default:
            usage();
            h5diff_exit(EXIT_FAILURE);
        case 'h':
            usage();
            h5diff_exit(EXIT_SUCCESS);
        case 'V':
            print_version(progname);
            h5diff_exit(EXIT_SUCCESS);
        case 'v':
            options->m_verbose = 1;
            break;
        case 'q':
            /* use quiet mode; supress the message "0 differences found" */
            options->m_quiet = 1;
            break;
        case 'r':
            options->m_report = 1;
            break;
        case 'd':
            options->d=1;

            if ( check_d_input( opt_arg )==-1)
            {
                printf("<-d %s> is not a valid option\n", opt_arg );
                usage();
                h5diff_exit(EXIT_FAILURE);
            }
            options->delta = atof( opt_arg );

            /* -d 0 is the same as default */
            if (options->delta == 0)
            options->d=0;

            break;

        case 'p':

            options->p=1;
            if ( check_p_input( opt_arg )==-1)
            {
                printf("<-p %s> is not a valid option\n", opt_arg );
                usage();
                h5diff_exit(EXIT_FAILURE);
            }
            options->percent = atof( opt_arg );

            /* -p 0 is the same as default */
            if (options->percent == 0)
            options->p = 0;

            break;

        case 'n':

            options->n=1;
            if ( check_n_input( opt_arg )==-1)
            {
                printf("<-n %s> is not a valid option\n", opt_arg );
                usage();
                h5diff_exit(EXIT_FAILURE);
            }
            options->count = atol( opt_arg );

            break;

        case 'N':
            options->do_nans = 0;
            break;
        case 'c':
            options->m_list_not_cmp = 1;
            break;
        case 'e':
            options->use_system_epsilon = 1;
            break;
        }
    }

    /* if use system epsilon, unset -p and -d option */
    if (options->use_system_epsilon)
        options->d = options->p = 0;

    /* check for file names to be processed */
    if (argc <= opt_ind || argv[ opt_ind + 1 ] == NULL)
    {
        error_msg(progname, "missing file names\n");
        usage();
        h5diff_exit(EXIT_FAILURE);
    }

    *fname1 = argv[ opt_ind ];
    *fname2 = argv[ opt_ind + 1 ];
    *objname1 = argv[ opt_ind + 2 ];

    if ( *objname1 == NULL )
    {
        *objname2 = NULL;
        return;
    }

    if ( argv[ opt_ind + 3 ] != NULL)
    {
        *objname2 = argv[ opt_ind + 3 ];
    }
    else
    {
        *objname2 = *objname1;
    }


}


/*-------------------------------------------------------------------------
 * Function: print_info
 *
 * Purpose: print several information messages after h5diff call
 *
 *-------------------------------------------------------------------------
 */

 void  print_info(diff_opt_t* options)
 {
     if (options->m_quiet || options->err_stat )
         return;

     if (options->cmn_objs==0)
     {
         printf("No common objects found. Files are not comparable.\n");
         if (!options->m_verbose)
             printf("Use -v for a list of objects.\n");
     }

     if (options->not_cmp==1)
     {
         if ( options->m_list_not_cmp == 0 )
         {
             printf("--------------------------------\n");
             printf("Some objects are not comparable\n");
             printf("--------------------------------\n");
             printf("Use -c for a list of objects.\n");
         }


     }

 }

/*-------------------------------------------------------------------------
 * Function: check_n_input
 *
 * Purpose: check for valid input
 *
 * Return: 1 for ok, -1 for fail
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: May 9, 2003
 *
 * Comments:
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
check_n_input( const char *str )
{
    unsigned i;
    char c;

    for ( i = 0; i < strlen(str); i++)
    {
        c = str[i];
        if ( i==0 )
        {
            if ( c < 49 || c > 57  ) /* ascii values between 1 and 9 */
                return -1;
        }
        else
            if ( c < 48 || c > 57  ) /* 0 also */
                return -1;
    }
    return 1;
}

/*-------------------------------------------------------------------------
 * Function: check_p_input
 *
 * Purpose: check for a valid p option input
 *
 * Return: 1 for ok, -1 for fail
 *
 * Date: May 9, 2003
 *
 * Comments:
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
check_p_input( const char *str )
{
    double x;

    /*
    the atof return value on a hexadecimal input is different
    on some systems; we do a character check for this
    */
    if (strlen(str)>2 && str[0]=='0' && str[1]=='x')
        return -1;

    x=atof(str);
    if (x<0)
        return -1;

    return 1;
}

/*-------------------------------------------------------------------------
 * Function: check_d_input
 *
 * Purpose: check for a valid d option input
 *
 * Return: 1 for ok, -1 for fail
 *
 * Date: November 11, 2007
 *
 * Comments:
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
check_d_input( const char *str )
{
    double x;

    /*
    the atof return value on a hexadecimal input is different
    on some systems; we do a character check for this
    */
    if (strlen(str)>2 && str[0]=='0' && str[1]=='x')
        return -1;

    x=atof(str);
    if (x <0)
        return -1;

    return 1;
}

/*-------------------------------------------------------------------------
 * Function: usage
 *
 * Purpose: print a usage message
 *
 * Return: void
 *
 *-------------------------------------------------------------------------
 */

void usage(void)
{
 printf("usage: h5diff [OPTIONS] file1 file2 [obj1[obj2]] \n");
 printf("  file1                    File name of the first HDF5 file\n");
 printf("  file2                    File name of the second HDF5 file\n");
 printf("  [obj1]                   Name of an HDF5 object, in absolute path\n");
 printf("  [obj2]                   Name of an HDF5 object, in absolute path\n");

 printf("  OPTIONS\n");

 printf("   -h, --help              Print a usage message and exit\n");
 printf("   -V, --version           Print version number and exit\n");
 printf("   -r, --report            Report mode. Print differences\n");
 printf("   -v, --verbose           Verbose mode. Print differences, list of objects\n");
 printf("   -q, --quiet             Quiet mode. Do not do output\n");
 printf("   -c, --compare           List objects that are not comparable\n");
 printf("   -N, --nan               Avoid NaNs detection\n");
 printf("   -n C, --count=C         Print differences up to C number, C is a positive integer.\n");

 printf("   -d D, --delta=D         Print difference if (|a-b| > D), D is a positive number.\n");
 printf("   -p R, --relative=R      Print difference if (|(a-b)/b| > R), R is a positive number.\n");
 printf("   --use-system-epsilon    Print difference if (|a-b| > EPSILON),\n");
 printf("                           where EPSILON (FLT_EPSILON or FLT_EPSILON) is the system epsilon value. \n");
 printf("                           If the system epsilon is not defined, use the value below:\n");
 printf("                               FLT_EPSILON = 1.19209E-07 for float\n");
 printf("                               DBL_EPSILON = 2.22045E-16 for double\n");

 printf("                           -d, -p, and --use-system-epsilon options are used for comparing floating point values.\n");
 printf("                           By default, strict equality is used. Use -p or -d to set specific tolerance.\n");
 printf("\n");

 printf(" Modes of output:\n");
 printf("\n");
 printf("  Default mode: print the number of differences found and where they occured\n");
 printf("  -r Report mode: print the above plus the differences\n");
 printf("  -v Verbose mode: print the above plus a list of objects and warnings\n");
 printf("  -q Quiet mode: do not print output\n");

 printf("\n");

 printf(" Compare criteria\n");
 printf("\n");
 printf(" If no objects [obj1[obj2]] are specified, h5diff only compares objects\n");
 printf("   with the same absolute path in both files\n");
 printf("\n");

 printf(" The compare criteria is:\n");
 printf("   1) datasets: numerical array differences 2) groups: name string difference\n");
 printf("   3) datatypes: the return value of H5Tequal 4) links: name string difference\n");
 printf("   of the linked value\n");

 printf("\n");

 printf(" Return exit code:\n");
 printf("\n");
 printf("  1 if differences found, 0 if no differences, 2 if error\n");

 printf("\n");

 printf(" Examples of use:\n");
 printf("\n");
 printf(" 1) h5diff file1 file2 /g1/dset1 /g1/dset2\n");
 printf("\n");
 printf("    Compares object '/g1/dset1' in file1 with '/g1/dset2' in file2\n");
 printf("\n");
 printf(" 2) h5diff file1 file2 /g1/dset1\n");
 printf("\n");
 printf("    Compares object '/g1/dset1' in both files\n");
 printf("\n");
 printf(" 3) h5diff file1 file2\n");
 printf("\n");
 printf("    Compares all objects in both files\n");
 printf("\n");
 printf(" Note)  file1 and file2 can be the same file. Use\n");
 printf("\n");
 printf("    h5diff file1 file1 /g1/dset1 /g1/dset2\n");
 printf("\n");
 printf("    to compare '/g1/dset1' and '/g1/dset2' in the same file\n");
 printf("\n");


}


/*-------------------------------------------------------------------------
 * Function: h5diff_exit
 *
 * Purpose: dismiss phdiff worker processes and exit
 *
 * Return: none
 *
 * Programmer: Albert Cheng
 * Date: Feb 6, 2005
 *
 * Comments:
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
void h5diff_exit(int status)
{
#ifdef H5_HAVE_PARALLEL
    /* if in parallel mode, dismiss workers, close down MPI, then exit */
    if((g_nTasks > 1) && g_Parallel) {
        phdiff_dismiss_workers();
        MPI_Barrier(MPI_COMM_WORLD);
    }
    if(g_Parallel)
        MPI_Finalize();
#endif
    exit(status);
}