From 3b7893a400edfb01af18425d152f2d0d6433c53f Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 24 Mar 2021 12:11:18 +0000
Subject: [PATCH] vpid: Provide is_empty

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 src/vpid.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/vpid.rs b/src/vpid.rs
index eff21b3c..e4f9e971 100644
--- a/src/vpid.rs
+++ b/src/vpid.rs
@@ -154,6 +154,8 @@ impl Notches {
     }
   }
 
+  pub fn is_empty(&self) -> bool { self.used == 0 }
+
   #[cfg(test)]
   fn check(&self) {
     let mut count_free = 0;
-- 
2.30.2