Add strmap_isempty

svn:r2250

2 files changed, 6 insertions, 0 deletions

diff --git a/src/common/util.c b/src/common/util.c
index 68d858e82..ff2b02371 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -740,6 +740,11 @@ void strmap_free(strmap_t *map, void (*free_val)(void*))
   tor_free(map);
 }
 
+int strmap_isempty(strmap_t *map)
+{
+  return SPLAY_EMPTY(&map->head);
+}
+
 /*
  *    String manipulation
  */
diff --git a/src/common/util.h b/src/common/util.h
index 915fb9d9a..4c629a221 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -181,6 +181,7 @@ void* strmap_remove_lc(strmap_t *map, const char *key);
 typedef void* (*strmap_foreach_fn)(const char *key, void *val, void *data);
 void strmap_foreach(strmap_t *map, strmap_foreach_fn fn, void *data);
 void strmap_free(strmap_t *map, void (*free_val)(void*));
+int strmap_isempty(strmap_t *map);
 
 strmap_iter_t *strmap_iter_init(strmap_t *map);
 strmap_iter_t *strmap_iter_next(strmap_t *map, strmap_iter_t *iter);