From 41bed4154415ec47a3bef8c2c6b607144ef3cc2d Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@iki.fi>
Date: Tue, 9 May 2023 10:51:14 +0300
Subject: [PATCH] Improve logging

---
 core/mvcc/bindings/c/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/mvcc/bindings/c/src/lib.rs b/core/mvcc/bindings/c/src/lib.rs
index 2a429cbdb..6eeffdeca 100644
--- a/core/mvcc/bindings/c/src/lib.rs
+++ b/core/mvcc/bindings/c/src/lib.rs
@@ -52,6 +52,7 @@ pub unsafe extern "C" fn MVCCDatabaseOpen(path: *const std::ffi::c_char) -> MVCC
 pub unsafe extern "C" fn MVCCDatabaseClose(db: MVCCDatabaseRef) {
     tracing::debug!("MVCCDatabaseClose");
     if db.is_null() {
+        tracing::debug!("warning: `db` is null in MVCCDatabaseClose()");
         return;
     }
     let _ = unsafe { Box::from_raw(db.get_ref_mut()) };