src/basic/set.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2017 Lennart Poettering
   6 ***/
   7
   8 #include "alloc-util.h"
   9 #include "set.h"
  10
  11 int set_make(Set **ret, const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS, void *add, ...) {
  12         _cleanup_set_free_ Set *s = NULL;
  13         int r;
  14
  15         assert(ret);
  16
  17         s = set_new(hash_ops HASHMAP_DEBUG_PASS_ARGS);
  18         if (!s)
  19                 return -ENOMEM;
  20
  21         if (add) {
  22                 va_list ap;
  23
  24                 r = set_put(s, add);
  25                 if (r < 0)
  26                         return r;
  27
  28                 va_start(ap, add);
  29
  30                 for (;;) {
  31                         void *arg = va_arg(ap, void*);
  32
  33                         if (!arg)
  34                                 break;
  35
  36                         r = set_put(s, arg);
  37                         if (r < 0) {
  38                                 va_end(ap);
  39                                 return r;
  40                         }
  41                 }
  42
  43                 va_end(ap);
  44         }
  45
  46         *ret = TAKE_PTR(s);
  47
  48         return 0;
  49 }