From 1e2f60201da25d64afbe37f874737ca95b13dbee Mon Sep 17 00:00:00 2001
From: Torrie Fischer <torrie@ripple.com>
Date: Mon, 11 Dec 2023 07:48:59 +0100
Subject: [PATCH] figments: ringbuf: prevent infinite loop if ringbuf is empty

---
 lib/Figments/Ringbuf.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Figments/Ringbuf.h b/lib/Figments/Ringbuf.h
index 955c505..5c1c425 100644
--- a/lib/Figments/Ringbuf.h
+++ b/lib/Figments/Ringbuf.h
@@ -86,6 +86,8 @@ struct Ringbuf {
     size_t size() {
       if (m_tail > m_head) {
         return m_tail - m_head;
+      } else if (m_tail == m_head) {
+        return 0;
       }
       return m_tail + (Size - m_head);
     }