git.ozlabs.org Git - ccan/blob - ccan/jbitset/jbitset.c

   1 #include <ccan/jbitset/jbitset.h>
   2 #include <ccan/build_assert/build_assert.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 struct jbitset *jbit_new(void)
   7 {
   8         struct jbitset *set;
   9
  10         /* Judy uses Word_t, we use size_t. */
  11         BUILD_ASSERT(sizeof(size_t) == sizeof(Word_t));
  12
  13         set = malloc(sizeof(*set));
  14         if (set) {
  15                 set->judy = NULL;
  16                 memset(&set->err, 0, sizeof(set->err));
  17                 set->errstr = NULL;
  18         }
  19         return set;
  20 }
  21
  22 const char *jbit_error_(struct jbitset *set)
  23 {
  24         char *str;
  25         free((char *)set->errstr);
  26         set->errstr = str = malloc(100);
  27         if (!set->errstr)
  28                 return "out of memory";
  29
  30         sprintf(str,
  31                 "JU_ERRNO_* == %d, ID == %d\n",
  32                 JU_ERRNO(&set->err), JU_ERRID(&set->err));
  33         return str;
  34 }
  35
  36 void jbit_free(const struct jbitset *set)
  37 {
  38         free((char *)set->errstr);
  39         Judy1FreeArray((PPvoid_t)&set->judy, PJE0);
  40         free((void *)set);
  41 }