blob: 1fcde97ca0aa2bc9b9e08a4552f778cdbbf495e9 [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.
/// . . .
/// If mode is FileLock.exclusive or FileLock.shared, an exception is thrown if
/// the lock cannot be obtained. If mode is FileLock.blockingExclusive or
/// FileLock.blockingShared, the call returns only after the lock has been
/// obtained.
///
/// @description Checks that if mode is FileLock.blockingExclusive, the returned
/// Future is resolved only when the lock has been obtained.
/// @author ngl@unipro.ru
import "dart:async";
import "dart:io";
import "../../../Utils/expect.dart";
import "../file_utils.dart";
import "lock_check_3_lib.dart";
void check(int fLen) {
File file = getTempFileSync();
asyncStart();
var rf = file.openSync(mode: FileMode.write);
rf.writeFromSync(new List.filled(fLen, 1));
rf.lockSync(FileLock.exclusive);
var tests = [
() => checkUnlocked(Platform.script.toString(), rf.path, 0, -1, FileLock.blockingExclusive)
];
Future.forEach(tests, (Function f) => f()).whenComplete(() {
asyncEnd();
rf.closeSync();
file.deleteSync();
});
rf.unlockSync();
}
runMain() {
check(10);
check(1000);
}
main(List<String> args) {
if (args.length > 0)
runProcess(args);
else {
runMain();
}
}