From: Kris Zyp <kriszyp@gmail.com>
Date: Wed, 6 Feb 2019 20:49:27 +0000 (-0700)
Subject: ITS#8975 WIN32: Skip setting file pointer for write maps
X-Git-Tag: LMDB_0.9.24~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea30be6109d6abdc6c67db312cd61ea6c9753820;p=thirdparty%2Fopenldap.git

ITS#8975 WIN32: Skip setting file pointer for write maps

CreateFileMapping already takes care of it.
---

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 22740ce80f..1e71e3b635 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -3991,9 +3991,9 @@ mdb_env_map(MDB_env *env, void *addr)
 		 * and won't map more than the file size.
 		 * Just set the maxsize right now.
 		 */
-		if (SetFilePointer(env->me_fd, sizelo, &sizehi, 0) != (DWORD)sizelo
+		if (!(flags & MDB_WRITEMAP) && (SetFilePointer(env->me_fd, sizelo, &sizehi, 0) != (DWORD)sizelo
 			|| !SetEndOfFile(env->me_fd)
-			|| SetFilePointer(env->me_fd, 0, NULL, 0) != 0)
+			|| SetFilePointer(env->me_fd, 0, NULL, 0) != 0))
 			return ErrCode();
 	}