| /* |
| * Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /** |
| * @assertion |
| * Future<RandomAccessFile> lock([ |
| * FileLock mode = FileLock.exclusive, |
| * int start = 0, |
| * int end = -1 |
| * ]) |
| * Locks the file or part of the file. |
| * |
| * By default an exclusive lock will be obtained, but that can be overridden by |
| * the mode argument. |
| * |
| * @description Checks that method lock may lock the part of file (by default in |
| * an exclusive mode). |
| * @author ngl@unipro.ru |
| */ |
| import "dart:async"; |
| import "dart:io"; |
| import "../../../Utils/expect.dart"; |
| import "../file_utils.dart"; |
| import "lock_check_1_lib.dart"; |
| |
| main() { |
| File file = getTempFileSync(); |
| file.writeAsBytesSync(new List.filled(6, 0)); |
| var rf = file.openSync(mode: FileMode.write); |
| asyncStart(); |
| var rfLock = rf.lock(FileLock.exclusive, 2, 5); |
| rfLock.then((RandomAccessFile f) { |
| var tests = [ |
| () => checkUnlocked(f.path, 0, 1), |
| () => checkUnlocked(f.path, 1, 2), |
| () => checkLocked(f.path, 2, 3), |
| () => checkLocked(f.path, 3, 4), |
| () => checkLocked(f.path, 4, 5), |
| () => checkUnlocked(f.path, 5, 6) |
| ]; |
| Future.forEach(tests, (f) => f()).whenComplete(() { |
| asyncEnd(); |
| if (Platform.isWindows) { |
| rf.unlockSync(2, 5); |
| } else { |
| rf.unlockSync(); |
| } |
| rf.closeSync(); |
| file.deleteSync(); |
| }); |
| }); |
| } |