From 21858201e01b77dd3b1a8d1b96c9ba45e3d4cea7 Mon Sep 17 00:00:00 2001
From: Leo Yuriev <leo@yuriev.ru>
Date: Tue, 24 Jul 2018 00:17:54 +0300
Subject: [PATCH] mdbx: fix nasty suspend_and_append() bug.

Change-Id: I043adcff2e6c040426a51b5d4b15bac849e6dd9f
---
 src/lck-windows.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/lck-windows.c b/src/lck-windows.c
index 327979e6..02b074e9 100644
--- a/src/lck-windows.c
+++ b/src/lck-windows.c
@@ -199,7 +199,9 @@ static int suspend_and_append(mdbx_handle_array_t **array,
                                 (limit * 2 - ARRAY_LENGTH((*array)->handles)));
     if (!ptr)
       return MDBX_ENOMEM;
-    (*array) = (mdbx_handle_array_t *)ptr;
+    if (limit == ARRAY_LENGTH((*array)->handles))
+      memcpy(ptr, *array, sizeof(mdbx_handle_array_t));
+    *array = (mdbx_handle_array_t *)ptr;
     (*array)->limit = limit * 2;
   }