aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/libraries/eina/src/lib/eina_inarray.c
blob: dc95bc600fd1597bca3a22be45636dfd3dfe5401 (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
/* EINA - EFL data type library
 * Copyright (C) 2012 - ProFUSION embedded systems
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library;
 * if not, see <http://www.gnu.org/licenses/>.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdlib.h>
#include <string.h>

#include "eina_config.h"
#include "eina_private.h"
#include "eina_error.h"
#include "eina_log.h"

/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
#include "eina_safety_checks.h"
#include "eina_inarray.h"

/*============================================================================*
*                                  Local                                     *
*============================================================================*/

/**
 * @cond LOCAL
 */

static const char EINA_MAGIC_INARRAY_STR[] = "Eina Inline Array";
static const char EINA_MAGIC_INARRAY_ITERATOR_STR[] = "Eina Inline Array Iterator";
static const char EINA_MAGIC_INARRAY_ACCESSOR_STR[] = "Eina Inline Array Accessor";

typedef struct _Eina_Iterator_Inarray Eina_Iterator_Inarray;
typedef struct _Eina_Accessor_Inarray Eina_Accessor_Inarray;

struct _Eina_Iterator_Inarray
{
   Eina_Iterator iterator;
   const Eina_Inarray *array;
   unsigned int pos;
   EINA_MAGIC
};

struct _Eina_Accessor_Inarray
{
   Eina_Accessor accessor;
   const Eina_Inarray *array;
   EINA_MAGIC
};

static int _eina_inarray_log_dom = -1;

#ifdef ERR
#undef ERR
#endif
#define ERR(...) EINA_LOG_DOM_ERR(_eina_inarray_log_dom, __VA_ARGS__)

#ifdef DBG
#undef DBG
#endif
#define DBG(...) EINA_LOG_DOM_DBG(_eina_inarray_log_dom, __VA_ARGS__)

#define EINA_MAGIC_CHECK_INARRAY(d, ...)                \
  do                                                    \
    {                                                   \
       if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_INARRAY))    \
         {                                              \
            EINA_MAGIC_FAIL(d, EINA_MAGIC_INARRAY);     \
            return __VA_ARGS__;                         \
         }                                              \
       eina_error_set(0);                               \
    }                                                   \
  while(0)

#define EINA_MAGIC_CHECK_INARRAY_ITERATOR(d, ...)               \
  do                                                            \
    {                                                           \
       if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_INARRAY_ITERATOR))   \
         {                                                      \
            EINA_MAGIC_FAIL(d, EINA_MAGIC_INARRAY_ITERATOR);    \
            return __VA_ARGS__;                                 \
         }                                                      \
       eina_error_set(0);                                       \
    }                                                           \
  while(0)

#define EINA_MAGIC_CHECK_INARRAY_ACCESSOR(d, ...)               \
  do                                                            \
    {                                                           \
       if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_INARRAY_ACCESSOR))   \
         {                                                      \
            EINA_MAGIC_FAIL(d, EINA_MAGIC_INARRAY_ACCESSOR);    \
            return __VA_ARGS__;                                 \
         }                                                      \
       eina_error_set(0);                                       \
    }                                                           \
  while(0)

static void
_eina_inarray_setup(Eina_Inarray *array, unsigned int member_size, unsigned int step)
{
   EINA_MAGIC_SET(array, EINA_MAGIC_INARRAY);
   array->member_size = member_size;
   array->len = 0;
   array->max = 0;
   array->step = (step > 0) ? step : 32;
   array->members = NULL;
}

static Eina_Bool
_eina_inarray_resize(Eina_Inarray *array, unsigned int new_size)
{
   unsigned int new_max;
   void *tmp;

   if (new_size < array->max)
     return EINA_TRUE;

   if (new_size % array->step == 0)
     new_max = new_size;
   else
     new_max = ((new_size / array->step) + 1) * array->step;

   tmp = realloc(array->members, new_max * array->member_size);
   if ((!tmp) && (new_max > 0))
     {
        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
        return EINA_FALSE;
     }

   array->members = tmp;
   array->max = new_max;
   return EINA_TRUE;
}

static inline void *
_eina_inarray_get(const Eina_Inarray *array, unsigned int position)
{
   unsigned int offset = position * array->member_size;
   return (unsigned char *)array->members + offset;
}

static int
_eina_inarray_search(const Eina_Inarray *array, const void *data, Eina_Compare_Cb compare)
{
   const unsigned char *start, *found;
   start = array->members;
   found = bsearch(data, start, array->len, array->member_size, compare);
   if (!found)
     return -1;
   return (found - start) / array->member_size;
}

static unsigned int
_eina_inarray_search_sorted_near(const Eina_Inarray *array, const void *data, Eina_Compare_Cb compare, int *cmp)
{
   unsigned int start, last, middle;

   if (array->len == 0)
     {
        *cmp = -1;
        return 0;
     }
   else if (array->len == 1)
     {
        *cmp = compare(data, array->members);
        return 0;
     }

   start = 0;
   last = array->len - 1; /* inclusive */
   do
     {
        void *p;
        middle = start + (last - start) / 2; /* avoid overflow */
        p = _eina_inarray_get(array, middle);
        *cmp = compare(data, p);
        if (*cmp == 0)
          return middle;
        else if (*cmp > 0)
          start = middle + 1;
        else if (middle > 0)
          last = middle - 1;
        else
          break;
     }
   while (start <= last);
   return middle;
}


static Eina_Bool
_eina_inarray_iterator_next(Eina_Iterator_Inarray *it, void **data)
{
   EINA_MAGIC_CHECK_INARRAY_ITERATOR(it, EINA_FALSE);

   if (it->pos >= it->array->len)
     return EINA_FALSE;

   *data = _eina_inarray_get(it->array, it->pos);
   it->pos++;

   return EINA_TRUE;
}

static Eina_Bool
_eina_inarray_iterator_prev(Eina_Iterator_Inarray *it, void **data)
{
   EINA_MAGIC_CHECK_INARRAY_ITERATOR(it, EINA_FALSE);

   if (it->pos == 0)
     return EINA_FALSE;

   it->pos--;
   *data = _eina_inarray_get(it->array, it->pos);

   return EINA_TRUE;
}

static Eina_Inarray *
_eina_inarray_iterator_get_container(Eina_Iterator_Inarray *it)
{
   EINA_MAGIC_CHECK_INARRAY_ITERATOR(it, NULL);
   return (Eina_Inarray *)it->array;
}

static void
_eina_inarray_iterator_free(Eina_Iterator_Inarray *it)
{
   EINA_MAGIC_CHECK_INARRAY_ITERATOR(it);
   MAGIC_FREE(it);
}

static Eina_Bool
_eina_inarray_accessor_get_at(Eina_Accessor_Inarray *it, unsigned int pos, void **data)
{
   EINA_MAGIC_CHECK_INARRAY_ACCESSOR(it, EINA_FALSE);

   if (pos >= it->array->len)
     return EINA_FALSE;

   *data = _eina_inarray_get(it->array, pos);
   return EINA_TRUE;
}

static Eina_Inarray *
_eina_inarray_accessor_get_container(Eina_Accessor_Inarray *it)
{
   EINA_MAGIC_CHECK_INARRAY_ACCESSOR(it, NULL);
   return (Eina_Inarray *)it->array;
}

static void
_eina_inarray_accessor_free(Eina_Accessor_Inarray *it)
{
   EINA_MAGIC_CHECK_INARRAY_ACCESSOR(it);
   MAGIC_FREE(it);
}

/**
 * @endcond
 */


/*============================================================================*
*                                 Global                                     *
*============================================================================*/

/**
 * @internal
 * @brief Initialize the inline array module.
 *
 * @return #EINA_TRUE on success, #EINA_FALSE on failure.
 *
 * This function sets up the inline array module of Eina. It is called
 * by eina_init().
 *
 * @see eina_init()
 */
Eina_Bool
eina_inarray_init(void)
{
   _eina_inarray_log_dom = eina_log_domain_register("eina_inarray",
                                                    EINA_LOG_COLOR_DEFAULT);
   if (_eina_inarray_log_dom < 0)
     {
        EINA_LOG_ERR("Could not register log domain: eina_inarray");
        return EINA_FALSE;
     }

#define EMS(n) eina_magic_string_static_set(n, n ## _STR)
   EMS(EINA_MAGIC_INARRAY);
   EMS(EINA_MAGIC_INARRAY_ITERATOR);
   EMS(EINA_MAGIC_INARRAY_ACCESSOR);
#undef EMS

   return EINA_TRUE;
}

/**
 * @internal
 * @brief Shut down the inline array module.
 *
 * @return #EINA_TRUE on success, #EINA_FALSE on failure.
 *
 * This function shuts down the inline array module set up by
 * eina_inarray_init(). It is called by eina_shutdown().
 *
 * @see eina_shutdown()
 */
Eina_Bool
eina_inarray_shutdown(void)
{
   eina_log_domain_unregister(_eina_inarray_log_dom);
   _eina_inarray_log_dom = -1;
   return EINA_TRUE;
}

/*============================================================================*
*                                   API                                      *
*============================================================================*/
EAPI Eina_Inarray *
eina_inarray_new(unsigned int member_size, unsigned int step)
{
   Eina_Inarray *ret;

   EINA_SAFETY_ON_TRUE_RETURN_VAL(member_size == 0, NULL);

   ret = malloc(sizeof(*ret));
   if (!ret)
     {
        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
        return NULL;
     }
   eina_error_set(0);
   _eina_inarray_setup(ret, member_size, step);
   return ret;
}

EAPI void
eina_inarray_free(Eina_Inarray *array)
{
   EINA_MAGIC_CHECK_INARRAY(array);
   free(array->members);
   free(array);
}

EAPI void
eina_inarray_setup(Eina_Inarray *array, unsigned int member_size, unsigned int step)
{
   EINA_SAFETY_ON_NULL_RETURN(array);
   EINA_SAFETY_ON_TRUE_RETURN(member_size == 0);
   _eina_inarray_setup(array, member_size, step);
}

EAPI void
eina_inarray_flush(Eina_Inarray *array)
{
   EINA_MAGIC_CHECK_INARRAY(array);
   free(array->members);
   array->len = 0;
   array->max = 0;
   array->members = NULL;
}

EAPI int
eina_inarray_append(Eina_Inarray *array, const void *data)
{
   void *p;

   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(data, -1);

   if (!_eina_inarray_resize(array, array->len + 1))
     return -1;

   p = _eina_inarray_get(array, array->len);
   memcpy(p, data, array->member_size);

   array->len++;
   return array->len - 1;
}

EAPI int
eina_inarray_insert(Eina_Inarray *array, const void *data, Eina_Compare_Cb compare)
{
   const unsigned char *itr, *itr_end;
   unsigned int sz;

   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(data, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(compare, -1);

   sz = array->member_size;
   itr = array->members;
   itr_end = itr + array->len * sz;
   for (; itr < itr_end; itr += sz)
     {
      unsigned int offset, position;
      int cmp = compare(itr, data);
      if (cmp <= 0)
        continue;

      offset = itr - (unsigned char *)array->members;
      position = offset / sz;
      if (!eina_inarray_insert_at(array, position, data))
        return -1;
      return position;
   }
   return eina_inarray_append(array, data);
}

EAPI int
eina_inarray_insert_sorted(Eina_Inarray *array, const void *data, Eina_Compare_Cb compare)
{
   unsigned int pos;
   int cmp;

   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(data, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(compare, -1);

   pos = _eina_inarray_search_sorted_near(array, data, compare, &cmp);
   if (cmp > 0)
     pos++;

   if (!eina_inarray_insert_at(array, pos, data))
     return -1;
   return pos;
}

EAPI int
eina_inarray_remove(Eina_Inarray *array, const void *data)
{
   const unsigned char *itr, *itr_end;
   unsigned int position, sz;

   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(data, -1);

   sz = array->member_size;
   if ((data >= array->members) &&
       (data < _eina_inarray_get(array, array->len)))
     {
        unsigned int offset = ((unsigned char *)data -
                               (unsigned char *)array->members);
        position = offset / sz;
        goto found;
     }

   itr = array->members;
   itr_end = itr + array->len * sz;
   for (; itr < itr_end; itr += sz)
     {
        if (memcmp(data, itr, sz) == 0)
          {
             unsigned int offset = itr - (unsigned char *)array->members;
             position = offset / sz;
             goto found;
          }
     }
   return -1;

found:
   if (!eina_inarray_remove_at(array, position))
     return -1;
   return position;
}

EAPI int
eina_inarray_pop(Eina_Inarray *array)
{
   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(array->len == 0, -1);
   if (!_eina_inarray_resize(array, array->len - 1))
     return -1;
   array->len--;
   return array->len + 1;
}

EAPI void *
eina_inarray_nth(const Eina_Inarray *array, unsigned int position)
{
   EINA_MAGIC_CHECK_INARRAY(array, NULL);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(position >= array->len, NULL);
   return _eina_inarray_get(array, position);
}

EAPI Eina_Bool
eina_inarray_insert_at(Eina_Inarray *array, unsigned int position, const void *data)
{
   unsigned int sz;
   unsigned char *p;

   EINA_MAGIC_CHECK_INARRAY(array, EINA_FALSE);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(position > array->len, EINA_FALSE);

   if (!_eina_inarray_resize(array, array->len + 1))
     return EINA_FALSE;

   p = _eina_inarray_get(array, position);
   sz = array->member_size;
   if (array->len > position)
     memmove(p + sz, p, (array->len - position) * sz);
   memcpy(p, data, sz);

   array->len++;
   return EINA_TRUE;
}

EAPI void *
eina_inarray_alloc_at(Eina_Inarray *array, unsigned int position, unsigned int member_count)
{
   unsigned int sz;
   unsigned char *p;

   EINA_MAGIC_CHECK_INARRAY(array, NULL);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(position > array->len, NULL);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(member_count == 0, NULL);

   if (!_eina_inarray_resize(array, array->len + member_count))
     return NULL;

   p = _eina_inarray_get(array, position);
   sz = array->member_size;
   if (array->len > position)
     memmove(p + member_count * sz, p, (array->len - position) * sz);

   array->len += member_count;
   return p;
}

EAPI Eina_Bool
eina_inarray_replace_at(Eina_Inarray *array, unsigned int position, const void *data)
{
   unsigned char *p;

   EINA_MAGIC_CHECK_INARRAY(array, EINA_FALSE);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(position >= array->len, EINA_FALSE);

   p = _eina_inarray_get(array, position);
   memcpy(p, data, array->member_size);

   return EINA_TRUE;
}

EAPI Eina_Bool
eina_inarray_remove_at(Eina_Inarray *array, unsigned int position)
{
   EINA_MAGIC_CHECK_INARRAY(array, EINA_FALSE);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(position >= array->len, EINA_FALSE);

   if (position + 1 < array->len)
     {
        unsigned int sz = array->member_size;
        unsigned char *p = _eina_inarray_get(array, position);
        memmove(p, p + sz, (array->len - position - 1) * sz);
     }

   _eina_inarray_resize(array, array->len - 1);
   array->len--;
   return EINA_TRUE;
}

EAPI void
eina_inarray_reverse(Eina_Inarray *array)
{
   size_t sz;
   unsigned char *fwd, *rev, *fwd_end;
   void *tmp;

   EINA_MAGIC_CHECK_INARRAY(array);

   if (array->len < 2)
     return;

   sz = array->member_size;

   tmp = alloca(sz);
   EINA_SAFETY_ON_NULL_RETURN(tmp);

   fwd = array->members;
   fwd_end = fwd + (array->len / 2) * sz;

   rev = fwd + (array->len - 1) * sz;

   for (; fwd < fwd_end; fwd += sz, rev -= sz)
     {
        memcpy(tmp, fwd, sz);
        memcpy(fwd, rev, sz);
        memcpy(rev, tmp, sz);
     }
}

EAPI void
eina_inarray_sort(Eina_Inarray *array, Eina_Compare_Cb compare)
{
   EINA_MAGIC_CHECK_INARRAY(array);
   EINA_SAFETY_ON_NULL_RETURN(compare);
   qsort(array->members, array->len, array->member_size, compare);
}

EAPI int
eina_inarray_search(const Eina_Inarray *array, const void *data, Eina_Compare_Cb compare)
{
   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(data, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(compare, -1);
   return _eina_inarray_search(array, data, compare);
}

EAPI int
eina_inarray_search_sorted(const Eina_Inarray *array, const void *data, Eina_Compare_Cb compare)
{
   unsigned int pos;
   int cmp;

   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(data, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(compare, -1);

   pos = _eina_inarray_search_sorted_near(array, data, compare, &cmp);
   if (cmp == 0)
     return pos;
   return -1;
}

EAPI Eina_Bool
eina_inarray_foreach(const Eina_Inarray *array, Eina_Each_Cb function, const void *user_data)
{
   unsigned char *itr, *itr_end;
   unsigned int sz;
   Eina_Bool ret = EINA_TRUE;

   EINA_MAGIC_CHECK_INARRAY(array, EINA_FALSE);
   EINA_SAFETY_ON_NULL_RETURN_VAL(function, EINA_FALSE);

   sz = array->member_size;
   itr = array->members;
   itr_end = itr + array->len * sz;
   for (; (itr < itr_end) && (ret); itr += sz)
     ret = function(array, itr, (void *)user_data);
   return ret;
}

EAPI int
eina_inarray_foreach_remove(Eina_Inarray *array, Eina_Each_Cb match, const void *user_data)
{
   unsigned int i = 0, count = 0;

   EINA_MAGIC_CHECK_INARRAY(array, -1);
   EINA_SAFETY_ON_NULL_RETURN_VAL(match, -1);

   while (i < array->len)
     {
        void *p = _eina_inarray_get(array, i);
        if (match(array, p, (void *)user_data) == EINA_FALSE)
          {
             i++;
             continue;
          }

        eina_inarray_remove_at(array, i);
        count++;
     }

   return count;
}

EAPI unsigned int
eina_inarray_count(const Eina_Inarray *array)
{
   EINA_MAGIC_CHECK_INARRAY(array, 0);
   return array->len;
}

EAPI Eina_Iterator *
eina_inarray_iterator_new(const Eina_Inarray *array)
{
   Eina_Iterator_Inarray *it;

   EINA_MAGIC_CHECK_INARRAY(array, NULL);

   eina_error_set(0);
   it = calloc(1, sizeof(Eina_Iterator_Inarray));
   if (!it)
     {
        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
        return NULL;
     }

   EINA_MAGIC_SET(it,            EINA_MAGIC_INARRAY_ITERATOR);
   EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);

   it->array = array;

   it->iterator.version = EINA_ITERATOR_VERSION;
   it->iterator.next = FUNC_ITERATOR_NEXT(_eina_inarray_iterator_next);
   it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER
     (_eina_inarray_iterator_get_container);
   it->iterator.free = FUNC_ITERATOR_FREE(_eina_inarray_iterator_free);

   return &it->iterator;
}

EAPI Eina_Iterator *
eina_inarray_iterator_reversed_new(const Eina_Inarray *array)
{
   Eina_Iterator_Inarray *it;

   EINA_MAGIC_CHECK_INARRAY(array, NULL);

   eina_error_set(0);
   it = calloc(1, sizeof(Eina_Iterator_Inarray));
   if (!it)
     {
        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
        return NULL;
     }

   EINA_MAGIC_SET(it,            EINA_MAGIC_INARRAY_ITERATOR);
   EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);

   it->array = array;
   it->pos = array->len;

   it->iterator.version = EINA_ITERATOR_VERSION;
   it->iterator.next = FUNC_ITERATOR_NEXT(_eina_inarray_iterator_prev);
   it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER
     (_eina_inarray_iterator_get_container);
   it->iterator.free = FUNC_ITERATOR_FREE(_eina_inarray_iterator_free);

   return &it->iterator;
}

EAPI Eina_Accessor *
eina_inarray_accessor_new(const Eina_Inarray *array)
{
   Eina_Accessor_Inarray *ac;

   EINA_MAGIC_CHECK_INARRAY(array, NULL);

   eina_error_set(0);
   ac = calloc(1, sizeof(Eina_Accessor_Inarray));
   if (!ac)
     {
        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
        return NULL;
     }

   EINA_MAGIC_SET(ac,            EINA_MAGIC_INARRAY_ACCESSOR);
   EINA_MAGIC_SET(&ac->accessor, EINA_MAGIC_ACCESSOR);

   ac->array = array;

   ac->accessor.version = EINA_ACCESSOR_VERSION;
   ac->accessor.get_at = FUNC_ACCESSOR_GET_AT(_eina_inarray_accessor_get_at);
   ac->accessor.get_container = FUNC_ACCESSOR_GET_CONTAINER
     (_eina_inarray_accessor_get_container);
   ac->accessor.free = FUNC_ACCESSOR_FREE(_eina_inarray_accessor_free);

   return &ac->accessor;
}