From 20d6f2013b6629566b3fe1b5b03800fecac25e96 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sat, 27 Apr 2013 20:07:22 +0200
Subject: [PATCH] Checking whether closing succeeds

---
 src/leveldb/util/env_win.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/leveldb/util/env_win.cc b/src/leveldb/util/env_win.cc
index c64027f6..4730192b 100644
--- a/src/leveldb/util/env_win.cc
+++ b/src/leveldb/util/env_win.cc
@@ -462,8 +462,8 @@ bool Win32MapFile::_UnmapCurrentRegion()
             // Defer syncing this data until next Sync() call, if any
             _pending_sync = true;
         }
-        UnmapViewOfFile(_base);
-        CloseHandle(_base_handle);
+        if (!UnmapViewOfFile(_base) || !CloseHandle(_base_handle))
+            result = false;
         _file_offset += _limit - _base;
         _base = NULL;
         _base_handle = NULL;