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authorLennart Poettering <lennart@poettering.net>2015-11-24 21:54:22 +0100
committerLennart Poettering <lennart@poettering.net>2015-11-25 21:58:38 +0100
commit0264d0726fac78f7d689ded632987ff9edfc03d2 (patch)
treeafd234971ceb167d72ae352f76dbb087c68c8e26 /src/basic/ordered-set.h
parenteed857b71702f8551b46b66b31fa0d08583cf23c (diff)
util-lib: add ordered_set_ensure_allocated()
ordered_set_ensure_allocated() does for an OrderedSet, what set_ensure_allicated() does for a Set.
Diffstat (limited to 'src/basic/ordered-set.h')
-rw-r--r--src/basic/ordered-set.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/basic/ordered-set.h b/src/basic/ordered-set.h
index 6c617ab305..da10e90ff2 100644
--- a/src/basic/ordered-set.h
+++ b/src/basic/ordered-set.h
@@ -29,6 +29,17 @@ static inline OrderedSet* ordered_set_new(const struct hash_ops *ops) {
return (OrderedSet*) ordered_hashmap_new(ops);
}
+static inline int ordered_set_ensure_allocated(OrderedSet **s, const struct hash_ops *ops) {
+ if (*s)
+ return 0;
+
+ *s = ordered_set_new(ops);
+ if (!*s)
+ return -ENOMEM;
+
+ return 0;
+}
+
static inline OrderedSet* ordered_set_free(OrderedSet *s) {
ordered_hashmap_free((OrderedHashmap*) s);
return NULL;