Skip setting file pointer for write maps

kriszyp · Feb 6, 2019 · 6df9039 · 6df9039
1 parent 0ed0ea0
commit 6df9039
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/dependencies/lmdb/libraries/liblmdb/mdb.c b/dependencies/lmdb/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();
 	}