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/*
* Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 8314120
* @summary Sanity test for FileDescriptor.sync
* @library /test/lib
* @run main Sync
*/
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.SyncFailedException;
import jdk.test.lib.thread.VThreadRunner;
public class Sync {
static final String TEST_DIR = System.getProperty("test.dir", ".");
static final int TRIES = 10_000;
public static void testWith(File file) throws Exception {
try (FileOutputStream fos = new FileOutputStream(file)) {
FileDescriptor fd = fos.getFD();
for (int t = 0; t < TRIES; t++) {
fd.sync();
}
} catch (SyncFailedException sfe) {
// Can happen on some filesystems, print it in the log
System.out.println("Sync failed (acceptable)");
sfe.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
// Run on platform threads
System.out.println("With platform threads");
run();
// Run on virtual threads
System.out.println("With virtual threads");
VThreadRunner.run(Sync::run);
System.out.println("Complete");
}
private static class AutoDelete implements AutoCloseable {
private final File file;
public AutoDelete(File file) {
this.file = file;
}
public File file() {
return file;
}
@Override
public void close() throws Exception {
file.delete();
}
}
public static void run() throws Exception {
try (var w = new AutoDelete(new File(TEST_DIR, "FileDescriptorSync1"))) {
testWith(w.file());
}
try (var w = new AutoDelete(File.createTempFile("FileDescriptorSync2", "tmp"))) {
testWith(w.file());
}
}
}
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