1 files changed, 7 insertions, 0 deletions
diff --git a/src/queue.c b/src/queue.c
index 90823ae6..5c2e7a67 100644
--- a/src/queue.c
+++ b/src/queue.c
@@ -73,5 +73,12 @@ void* queue_pop(struct queue *q) {
     p = e->data;
     free(e);
 
+    q->length--;
+    
     return p;
 }
+
+int queue_is_empty(struct queue *q) {
+    assert(q);
+    return q->length == 0;
+}