prism/util/pm_list.c

   1 #include "prism/util/pm_list.h"
   2
   3 /**
   4  * Returns true if the given list is empty.
   5  */
   6 PRISM_EXPORTED_FUNCTION bool
   7 pm_list_empty_p(pm_list_t *list) {
   8     return list->head == NULL;
   9 }
  10
  11 /**
  12  * Returns the size of the list.
  13  */
  14 PRISM_EXPORTED_FUNCTION size_t
  15 pm_list_size(pm_list_t *list) {
  16     return list->size;
  17 }
  18
  19 /**
  20  * Append a node to the given list.
  21  */
  22 void
  23 pm_list_append(pm_list_t *list, pm_list_node_t *node) {
  24     if (list->head == NULL) {
  25         list->head = node;
  26     } else {
  27         list->tail->next = node;
  28     }
  29
  30     list->tail = node;
  31     list->size++;
  32 }
  33
  34 /**
  35  * Deallocate the internal state of the given list.
  36  */
  37 PRISM_EXPORTED_FUNCTION void
  38 pm_list_free(pm_list_t *list) {
  39     pm_list_node_t *node = list->head;
  40     pm_list_node_t *next;
  41
  42     while (node != NULL) {
  43         next = node->next;
  44         xfree(node);
  45         node = next;
  46     }
  47
  48     list->size = 0;
  49 }