From 91a6e84caba43733ad2af15e98501bdf10b07368 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9B=D0=B5=D0=BE=D0=BD=D0=B8=D0=B4=20=D0=AE=D1=80=D1=8C?=
 =?UTF-8?q?=D0=B5=D0=B2=20=28Leonid=20Yuriev=29?= <leo@yuriev.ru>
Date: Thu, 3 Nov 2022 12:57:18 +0300
Subject: [PATCH] =?UTF-8?q?mdbx-windows:=20=D0=BF=D0=BE=D0=BF=D1=8B=D1=82?=
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---
 src/lck-windows.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/lck-windows.c b/src/lck-windows.c
index 7038854e..96d416ad 100644
--- a/src/lck-windows.c
+++ b/src/lck-windows.c
@@ -203,6 +203,16 @@ int mdbx_txn_lock(MDBX_env *env, bool dontwait) {
                             dontwait ? (LCK_EXCLUSIVE | LCK_DONTWAIT)
                                      : (LCK_EXCLUSIVE | LCK_WAITFOR),
                             DXB_BODY);
+  if (rc == ERROR_LOCK_VIOLATION && dontwait) {
+    SleepEx(0, true);
+    rc = flock_with_event(env->me_fd4data, env->me_data_lock_event,
+                          LCK_EXCLUSIVE | LCK_DONTWAIT, DXB_BODY);
+    if (rc == ERROR_LOCK_VIOLATION) {
+      SleepEx(0, true);
+      rc = flock_with_event(env->me_fd4data, env->me_data_lock_event,
+                            LCK_EXCLUSIVE | LCK_DONTWAIT, DXB_BODY);
+    }
+  }
   if (rc == MDBX_SUCCESS)
     return rc;