blob: fd8aae159eacd0bc81b67a3f92c320afb6a30e4d [file] [log] [blame]
// 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.
// @dart = 2.9
/// @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";
runMain() {
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) {
String eScript = Platform.script.toString();
var tests = [
() => checkUnlocked(eScript, f.path, 0, 1),
() => checkUnlocked(eScript, f.path, 1, 2),
() => checkLocked(eScript, f.path, 2, 3),
() => checkLocked(eScript, f.path, 3, 4),
() => checkLocked(eScript, f.path, 4, 5),
() => checkUnlocked(eScript, f.path, 5, 6)
];
Future.forEach(tests, (Function f) => f()).whenComplete(() {
asyncEnd();
if (Platform.isWindows) {
rf.unlockSync(2, 5);
} else {
rf.unlockSync();
}
rf.closeSync();
file.deleteSync();
});
});
}
main(List<String> args) {
if(args.length > 0)
runProcess(args);
else {
runMain();
}
}