Files
sdk/tests/standalone/io/file_blocking_lock_script.dart
T
Jonas Termansen 3433d8cfc3 [nnbd] Migrate standalone/io to NNBD.
The tests are also now dartfmt.

Bug: https://github.com/dart-lang/sdk/issues/40040
Change-Id: I8dece8097b37b70d47a5374dae2f3fadb0fc4b90
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134338
Commit-Queue: Jonas Termansen <sortie@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
2020-02-07 14:41:36 +00:00

34 lines
927 B
Dart

// Copyright (c) 2016, 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.
//
// Script used by the file_lock_test.dart test.
import "dart:async";
import "dart:io";
Future<int> testLockWholeFile(File file, int len) async {
var raf = await file.open(mode: FileMode.append);
await raf.setPosition(0);
int nextToWrite = 1;
await raf.lock(FileLock.blockingExclusive, 0, len);
// Make sure the peer fails a non-blocking lock at some point.
await new Future.delayed(const Duration(seconds: 1));
int p = 0;
while (p < len) {
await raf.writeByte(1);
p++;
}
await raf.unlock(0, len);
await raf.close();
return 0;
}
main(List<String> args) async {
File file = new File(args[0]);
int len = int.parse(args[1]);
exit(await testLockWholeFile(file, len));
}