src/dtk_list.c

   1 /** \ingroup contrac
   2  * @file
   3  * @author      David Llewellyn-Jones
   4  * @version     $(VERSION)
   5  *
   6  * @section LICENSE
   7  *
   8  *
   9  *
  10  * @brief
  11  * @section DESCRIPTION
  12  *
  13  *
  14  *
  15  */
  16
  17 // Includes
  18
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <stddef.h>
  22 #include <stdint.h>
  23
  24 #include "contrac/contrac.h"
  25 #include "contrac/utils.h"
  26 #include "contrac/log.h"
  27
  28 #include "contrac/dtk_list.h"
  29
  30 // Defines
  31
  32 // Structures
  33
  34 struct _DtkListItem {
  35         Dtk * dtk;
  36         DtkListItem * next;
  37 };
  38
  39 struct _DtkList {
  40         DtkListItem * first;
  41         DtkListItem * last;
  42 };
  43
  44 // Function prototypes
  45
  46 // Function definitions
  47
  48 DtkList * dtk_list_new() {
  49         DtkList * data;
  50
  51         data = calloc(sizeof(DtkList), 1);
  52
  53         return data;
  54 }
  55
  56 void dtk_list_delete(DtkList * data) {
  57         DtkListItem * item;
  58         DtkListItem * next;
  59
  60         if (data) {
  61                 item = data->first;
  62                 while (item) {
  63                         next = item->next;
  64                         dtk_delete(item->dtk);
  65                         free(item);
  66                         item = next;
  67                 }
  68
  69                 free(data);
  70         }
  71 }
  72
  73 void dtk_list_append(DtkList * data, Dtk * dtk) {
  74         DtkListItem * item;
  75
  76         item = calloc(sizeof(DtkListItem), 1);
  77         item->dtk = dtk;
  78
  79         if (data->last == NULL) {
  80                 data->first = item;
  81                 data->last = item;
  82         }
  83         else {
  84                 data->last->next = item;
  85                 data->last = item;
  86         }
  87 }
  88
  89 DtkListItem const * dtk_list_first(DtkList const * data) {
  90         return data->first;
  91 }
  92
  93 DtkListItem const * dtk_list_next(DtkListItem const * data) {
  94         return data->next;
  95 }
  96
  97 Dtk const * dtk_list_get_dtk(DtkListItem const * data) {
  98         return data->dtk;
  99 }
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