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/*
* Copyright (c) 2012, 2018, 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 4244896
* @summary Test for the various platform specific implementations of
* destroyForcibly.
*/
import java.io.*;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
abstract class ProcessTest implements Runnable {
ProcessBuilder bldr;
Process p;
public Process killProc(boolean force) throws Exception {
if (force) {
p.destroyForcibly();
} else {
p.destroy();
}
return p;
}
public boolean isAlive() {
return p.isAlive();
}
public void run() {
try {
String line;
BufferedReader is =
new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = is.readLine()) != null)
System.err.println("ProcessTrap: " + line);
} catch(IOException e) {
if (!e.getMessage().matches("[Ss]tream [Cc]losed")) {
throw new RuntimeException(e);
}
}
}
public abstract void runTest() throws Exception;
}
class UnixTest extends ProcessTest {
public UnixTest(File script) throws IOException {
script.deleteOnExit();
createScript(script);
bldr = new ProcessBuilder(script.getCanonicalPath());
bldr.redirectErrorStream(true);
bldr.directory(new File("."));
p = bldr.start();
}
void createScript(File processTrapScript) throws IOException {
processTrapScript.deleteOnExit();
FileWriter fstream = new FileWriter(processTrapScript);
try (BufferedWriter out = new BufferedWriter(fstream)) {
out.write("#!/bin/bash\n" +
"echo \\\"ProcessTrap.sh started: trapping SIGTERM/SIGINT\\\"\n" +
"trap bashtrap SIGTERM SIGINT\n" +
"bashtrap()\n" +
"{\n" +
" echo \\\"SIGTERM/SIGINT detected!\\\"\n" +
"}\n" +
"\n" +
"while :\n" +
"do\n" +
" sleep 1;\n" +
"done\n");
}
processTrapScript.setExecutable(true, true);
}
@Override
public void runTest() throws Exception {
killProc(false);
Thread.sleep(1000);
if (!p.isAlive())
throw new RuntimeException("Process terminated prematurely.");
killProc(true).waitFor();
if (p.isAlive())
throw new RuntimeException("Problem terminating the process.");
}
}
class MacTest extends UnixTest {
public MacTest(File script) throws IOException {
super(script);
}
@Override
public void runTest() throws Exception {
// On Mac, it appears that when we close the processes streams
// after a destroy() call, the process terminates with a
// SIGPIPE even if it was trapping the SIGTERM, so as with
// windows, we skip the trap test and go straight to destroyForcibly().
killProc(true).waitFor();
if (p.isAlive())
throw new RuntimeException("Problem terminating the process.");
}
}
class WindowsTest extends ProcessTest {
public WindowsTest() throws IOException {
bldr = new ProcessBuilder("ftp");
bldr.redirectErrorStream(true);
bldr.directory(new File("."));
p = bldr.start();
}
@Override
public void runTest() throws Exception {
killProc(true).waitFor();
}
}
public class DestroyTest {
public static ProcessTest getTest() throws Exception {
String osName = System.getProperty("os.name");
if (osName.startsWith("Windows")) {
return new WindowsTest();
} else {
File userDir = new File(System.getProperty("user.dir", "."));
File tempFile = File.createTempFile("ProcessTrap-", ".sh", userDir);
if (osName.startsWith("Linux") == true
|| osName.equals("SunOS")
|| osName.equals("AIX")) {
return new UnixTest(tempFile);
} else if (osName.startsWith("Mac OS")) {
return new MacTest(tempFile);
}
}
return null;
}
public static void main(String args[]) throws Exception {
ProcessTest test = getTest();
if (test == null) {
throw new RuntimeException("Unrecognised OS");
} else {
new Thread(test).start();
Thread.sleep(1000);
test.runTest();
}
}
}
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