blob: c382faf54079bd6d22a6a05cfbb6489467e46b2d [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
/// 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 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();
rf.lockSync(FileLock.shared);
String eScript = Platform.script.toString();
var tests = [
() => checkUnlocked(eScript, rf.path, 0, fLen, FileLock.shared),
() => checkLocked(eScript, 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();
}
}