isl_list.c

   1 #include "isl_list.h"
   2 #include "isl_set.h"
   3
   4 struct isl_basic_set_list *isl_basic_set_list_alloc(struct isl_ctx *ctx, int n)
   5 {
   6         struct isl_basic_set_list *list;
   7
   8         isl_assert(ctx, n >= 0, return NULL);
   9         list = isl_alloc(ctx, struct isl_basic_set_list,
  10                          sizeof(struct isl_basic_set_list) +
  11                          (n - 1) * sizeof(struct isl_basic_set *));
  12         if (!list)
  13                 return NULL;
  14
  15         list->ctx = ctx;
  16         isl_ctx_ref(ctx);
  17         list->ref = 1;
  18         list->size = n;
  19         list->n = 0;
  20         return list;
  21 }
  22
  23 struct isl_basic_set_list *isl_basic_set_list_add(
  24         struct isl_basic_set_list *list,
  25         struct isl_basic_set *bset)
  26 {
  27         if (!list || !bset)
  28                 goto error;
  29         isl_assert(list->ctx, list->n < list->size, goto error);
  30         list->p[list->n] = bset;
  31         list->n++;
  32         return list;
  33 error:
  34         isl_basic_set_free(bset);
  35         isl_basic_set_list_free(list);
  36         return NULL;
  37 }
  38
  39 void isl_basic_set_list_free(struct isl_basic_set_list *list)
  40 {
  41         int i;
  42
  43         if (!list)
  44                 return;
  45
  46         if (--list->ref > 0)
  47                 return;
  48
  49         isl_ctx_deref(list->ctx);
  50         for (i = 0; i < list->n; ++i)
  51                 isl_basic_set_free(list->p[i]);
  52         free(list);
  53 }