blob: 6f6d11d22ecce50e05f33d7d442c95b6f4482fee [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
/// ])
/// . . .
/// To obtain an exclusive lock on a file it must be opened for writing.
///
/// @description Checks that a shared lock on a file may be obtain for file
/// opened for reading.
/// @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();
file.writeAsBytesSync(new List.filled(fLen, 1));
var rf = file.openSync(mode: FileMode.read);
asyncStart();
var rfLock = rf.lock(FileLock.shared);;
rfLock.then((RandomAccessFile f) {
String eScript = Platform.script.toString();
var tests = [
() => checkUnlocked(eScript, f.path, 0, -1, FileLock.shared),
() => checkUnlocked(eScript, f.path, fLen, fLen + 20, FileLock.shared)
];
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();
}
}