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-rw-r--r--tools/net/ynl/lib/ynl.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/net/ynl/lib/ynl.h b/tools/net/ynl/lib/ynl.h
index 9842e85a8c57..eef7c6324ed4 100644
--- a/tools/net/ynl/lib/ynl.h
+++ b/tools/net/ynl/lib/ynl.h
@@ -91,6 +91,18 @@ void ynl_sock_destroy(struct ynl_sock *ys);
!ynl_dump_obj_is_last(iter); \
iter = ynl_dump_obj_next(iter))
+/**
+ * ynl_dump_empty() - does the dump have no entries
+ * @dump: pointer to the dump list, as returned by a dump call
+ *
+ * Check if the dump is empty, i.e. contains no objects.
+ * Dump calls return NULL on error, and terminator element if empty.
+ */
+static inline bool ynl_dump_empty(void *dump)
+{
+ return dump == (void *)YNL_LIST_END;
+}
+
int ynl_subscribe(struct ynl_sock *ys, const char *grp_name);
int ynl_socket_get_fd(struct ynl_sock *ys);
int ynl_ntf_check(struct ynl_sock *ys);