1 files changed, 5 insertions, 0 deletions
diff --git a/src/ioq.h b/src/ioq.h
index 064e2e2..9901293 100644
--- a/src/ioq.h
+++ b/src/ioq.h
@@ -41,6 +41,11 @@ struct ioq_res {
 struct ioq *ioq_create(size_t depth, size_t nthreads);
 
 /**
+ * Check the remaining capacity of a queue.
+ */
+size_t ioq_capacity(const struct ioq *ioq);
+
+/**
  * Asynchronous bfs_opendir().
  *
  * @param ioq