From 7a6672b7ed734b803eb6d68057289ee5da6291ff Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@ionos.com>
Date: Tue, 12 Nov 2024 08:17:15 +0100
Subject: [PATCH] util/IntrusiveTreeSet: update the counter, fixing
 constant_time_size

---
 src/util/IntrusiveTreeSet.hxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/util/IntrusiveTreeSet.hxx b/src/util/IntrusiveTreeSet.hxx
index 6594f8b26..72989762b 100644
--- a/src/util/IntrusiveTreeSet.hxx
+++ b/src/util/IntrusiveTreeSet.hxx
@@ -365,6 +365,8 @@ public:
 
 		SetRoot(root);
 
+		++counter;
+
 		return iterator_to(value);
 	}
 
@@ -374,6 +376,7 @@ public:
 
 		auto *next = RedBlackTreeNode::GetNextNode(i.node);
 		Cast(i.node)->unlink();
+		--counter;
 		return iterator{next};
 	}