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/*
* Copyright (c) 2015, 2016, Oracle and/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 8139133
* @summary Verify ability to set time attributes of socket files with no device
* @requires os.family == "linux"
*/
import java.io.File;
import java.io.InputStream;
import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardWatchEventKinds;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;
import java.nio.file.attribute.BasicFileAttributeView;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.FileTime;
public class UnixSocketFile {
private static final String TEST_SUB_DIR = "UnixSocketFile";
private static final String SOCKET_FILE_NAME = "mysocket";
private static final String CMD_BASE = "nc -lU";
public static void main(String[] args)
throws InterruptedException, IOException {
// Use 'which' to verify that 'nc' is available and skip the test
// if it is not.
Process proc = Runtime.getRuntime().exec("which nc");
InputStream stdout = proc.getInputStream();
int b = stdout.read();
proc.destroy();
if (b == -1) {
System.err.println("Netcat command unavailable; skipping test.");
return;
}
// Verify that 'nc' accepts '-U' for Unix domain sockets.
// Skip the test if it is not.
Process procHelp = Runtime.getRuntime().exec(CMD_BASE + " -h");
if (procHelp.waitFor() != 0) {
System.err.println("Netcat does not accept required options; skipping test.");
return;
}
// Create a new sub-directory of the nominal test directory in which
// 'nc' will create the socket file.
String testSubDir = System.getProperty("test.dir", ".")
+ File.separator + TEST_SUB_DIR;
Path socketTestDir = Paths.get(testSubDir);
Files.createDirectory(socketTestDir);
// Set the path of the socket file.
String socketFilePath = testSubDir + File.separator
+ SOCKET_FILE_NAME;
// Create a process which executes the nc (netcat) utility to create
// a socket file at the indicated location.
FileSystem fs = FileSystems.getDefault();
try (WatchService ws = fs.newWatchService()) {
// Watch the test sub-directory to receive notification when an
// entry, i.e., the socket file, is added to the sub-directory.
WatchKey wk = socketTestDir.register(ws,
StandardWatchEventKinds.ENTRY_CREATE);
// Execute the 'nc' command.
proc = Runtime.getRuntime().exec(CMD_BASE + " " + socketFilePath);
// Wait until the socket file is created.
WatchKey key = ws.take();
if (key != wk) {
throw new RuntimeException("Unknown entry created - expected: "
+ wk.watchable() + ", actual: " + key.watchable());
}
wk.cancel();
}
// Verify that the socket file in fact exists.
Path socketPath = fs.getPath(socketFilePath);
if (!Files.exists(socketPath)) {
throw new RuntimeException("Socket file " + socketFilePath
+ " was not created by \"nc\" command.");
}
// Retrieve the most recent access and modification times of the
// socket file; print the values.
BasicFileAttributeView attributeView = Files.getFileAttributeView(
socketPath, BasicFileAttributeView.class);
BasicFileAttributes oldAttributes = attributeView.readAttributes();
FileTime oldAccessTime = oldAttributes.lastAccessTime();
FileTime oldModifiedTime = oldAttributes.lastModifiedTime();
System.out.println("Old times: " + oldAccessTime
+ " " + oldModifiedTime);
// Calculate the time to which the access and modification times of the
// socket file will be changed.
FileTime newFileTime =
FileTime.fromMillis(oldAccessTime.toMillis() + 1066);
try {
// Set the access and modification times of the socket file.
attributeView.setTimes(newFileTime, newFileTime, null);
// Retrieve the updated access and modification times of the
// socket file; print the values.
FileTime newAccessTime = null;
FileTime newModifiedTime = null;
BasicFileAttributes newAttributes = attributeView.readAttributes();
newAccessTime = newAttributes.lastAccessTime();
newModifiedTime = newAttributes.lastModifiedTime();
System.out.println("New times: " + newAccessTime + " "
+ newModifiedTime);
// Verify that the updated times have the expected values.
if ((newAccessTime != null && !newAccessTime.equals(newFileTime))
|| (newModifiedTime != null
&& !newModifiedTime.equals(newFileTime))) {
throw new RuntimeException("Failed to set correct times.");
}
} finally {
// Destry the process running netcat and delete the socket file.
proc.destroy();
Files.delete(socketPath);
}
}
}
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