| // 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 |
| /// void lockSync([ |
| /// FileLock mode = FileLock.exclusive, |
| /// int start = 0, |
| /// int end = -1 |
| /// ]) |
| /// Synchronously locks the file or part of the file. |
| /// . . . |
| /// To obtain an exclusive lock on a file it must be opened for writing. |
| /// |
| /// @description Checks that to obtain an exclusive lock on a file it must be |
| /// opened for writing. |
| /// @author ngl@unipro.ru |
| |
| import "dart:async"; |
| import "dart:io"; |
| import "../../../Utils/expect.dart"; |
| import "../file_utils.dart"; |
| import "lock_check_1_lib.dart"; |
| |
| void check(int fLen) { |
| File file = getTempFileSync(); |
| var rf = file.openSync(mode: FileMode.write); |
| rf.writeFromSync(new List.filled(fLen, 1)); |
| asyncStart(); |
| rf.lockSync(FileLock.exclusive); |
| var tests = [ |
| () => checkLocked( |
| Platform.script.toString(), rf.path, 0, fLen, FileLock.exclusive) |
| ]; |
| Future.forEach(tests, (Function f) => f()).whenComplete(() { |
| asyncEnd(); |
| rf.unlockSync(); |
| rf.closeSync(); |
| file.deleteSync(); |
| }); |
| } |
| |
| runMain() { |
| check(10); |
| check(1000); |
| } |
| |
| main(List<String> args) { |
| if (args.length > 0) |
| runProcess(args); |
| else { |
| runMain(); |
| } |
| } |