| /* |
| * Copyright (c) 2014, 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. |
| */ |
| |
| import java.io.IOException; |
| import java.time.Duration; |
| import java.time.Instant; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ExecutionException; |
| |
| import jdk.test.lib.Utils; |
| |
| import org.testng.annotations.Test; |
| import org.testng.Assert; |
| import org.testng.TestNG; |
| |
| /* |
| * @test |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * jdk.management |
| * @build jdk.test.lib.Platform jdk.test.lib.Utils |
| * @run testng OnExitTest |
| * @summary Functions of Process.onExit and ProcessHandle.onExit |
| * @author Roger Riggs |
| */ |
| |
| public class OnExitTest extends ProcessUtil { |
| |
| @SuppressWarnings("raw_types") |
| public static void main(String[] args) { |
| Class<?>[] testclass = { OnExitTest.class}; |
| TestNG testng = new TestNG(); |
| testng.setTestClasses(testclass); |
| testng.run(); |
| } |
| |
| /** |
| * Basic test of exitValue and onExit. |
| */ |
| @Test |
| public static void test1() { |
| try { |
| int[] exitValues = {0, 1, 10}; |
| for (int value : exitValues) { |
| Process p = JavaChild.spawn("exit", Integer.toString(value)); |
| CompletableFuture<Process> future = p.onExit(); |
| future.thenAccept( (ph) -> { |
| int actualExitValue = ph.exitValue(); |
| printf(" javaChild done: %s, exitStatus: %d%n", |
| ph, actualExitValue); |
| Assert.assertEquals(actualExitValue, value, "actualExitValue incorrect"); |
| Assert.assertEquals(ph, p, "Different Process passed to thenAccept"); |
| }); |
| |
| Process h = future.get(); |
| Assert.assertEquals(h, p); |
| Assert.assertEquals(p.exitValue(), value); |
| Assert.assertFalse(p.isAlive(), "Process should not be alive"); |
| p.waitFor(); |
| } |
| } catch (IOException | InterruptedException | ExecutionException ex) { |
| Assert.fail(ex.getMessage(), ex); |
| } finally { |
| destroyProcessTree(ProcessHandle.current()); |
| } |
| } |
| |
| /** |
| * Test of Completion handler when parent is killed. |
| * Spawn 1 child to spawn 3 children each with 2 children. |
| */ |
| @Test |
| public static void test2() { |
| ProcessHandle procHandle = null; |
| try { |
| ConcurrentHashMap<ProcessHandle, ProcessHandle> processes = new ConcurrentHashMap<>(); |
| List<ProcessHandle> children = getChildren(ProcessHandle.current()); |
| children.forEach(ProcessUtil::printProcess); |
| |
| JavaChild proc = JavaChild.spawnJavaChild("stdin"); |
| procHandle = proc.toHandle(); |
| printf(" spawned: %d%n", proc.getPid()); |
| |
| proc.forEachOutputLine((s) -> { |
| String[] split = s.trim().split(" "); |
| if (split.length == 3 && split[1].equals("spawn")) { |
| Long child = Long.valueOf(split[2]); |
| Long parent = Long.valueOf(split[0].split(":")[0]); |
| processes.put(ProcessHandle.of(child).get(), ProcessHandle.of(parent).get()); |
| } |
| }); |
| |
| proc.sendAction("spawn", "3", "stdin"); |
| |
| proc.sendAction("child", "spawn", "2", "stdin"); |
| |
| // Poll until all 9 child processes exist or the timeout is reached |
| int expected = 9; |
| long timeout = Utils.adjustTimeout(10L); |
| Instant endTimeout = Instant.now().plusSeconds(timeout); |
| do { |
| Thread.sleep(200L); |
| printf(" subprocess count: %d, waiting for %d%n", processes.size(), expected); |
| } while (processes.size() < expected && |
| Instant.now().isBefore(endTimeout)); |
| |
| if (processes.size() < expected) { |
| printf("WARNING: not all children have been started. Can't complete test.%n"); |
| printf(" You can try to increase the timeout or%n"); |
| printf(" you can try to use a faster VM (i.e. not a debug version).%n"); |
| } |
| children = getDescendants(procHandle); |
| |
| ConcurrentHashMap<ProcessHandle, CompletableFuture<ProcessHandle>> completions = |
| new ConcurrentHashMap<>(); |
| Instant startTime = Instant.now(); |
| // Create a future for each of the 9 children |
| processes.forEach( (p, parent) -> { |
| CompletableFuture<ProcessHandle> cf = p.onExit().whenComplete((ph, ex) -> { |
| Duration elapsed = Duration.between(startTime, Instant.now()); |
| printf("whenComplete: pid: %s, exception: %s, thread: %s, elapsed: %s%n", |
| ph, ex, Thread.currentThread(), elapsed); |
| }); |
| completions.put(p, cf); |
| }); |
| |
| // Check that each of the spawned processes is included in the children |
| List<ProcessHandle> remaining = new ArrayList<>(children); |
| processes.forEach((p, parent) -> { |
| Assert.assertTrue(remaining.remove(p), "spawned process should have been in children"); |
| }); |
| |
| // Remove Win32 system spawned conhost.exe processes |
| remaining.removeIf(ProcessUtil::isWindowsConsole); |
| |
| remaining.forEach(p -> printProcess(p, "unexpected: ")); |
| if (remaining.size() > 0) { |
| // Show full list for debugging |
| ProcessUtil.logTaskList(); |
| } |
| |
| proc.destroy(); // kill off the parent |
| proc.waitFor(); |
| |
| // Wait for all the processes and corresponding onExit CF to be completed |
| processes.forEach((p, parent) -> { |
| try { |
| p.onExit().get(); |
| completions.get(p).join(); |
| } catch (InterruptedException | ExecutionException ex) { |
| // ignore |
| } |
| }); |
| |
| // Verify that all 9 exit handlers were called with the correct ProcessHandle |
| processes.forEach((p, parent) -> { |
| ProcessHandle value = completions.get(p).getNow(null); |
| Assert.assertEquals(p, value, "onExit.get value expected: " + p |
| + ", actual: " + value |
| + ": " + p.info()); |
| }); |
| |
| // Show the status of the original children |
| children.forEach(p -> printProcess(p, "after onExit:")); |
| |
| Assert.assertEquals(proc.isAlive(), false, "destroyed process is alive:: %s%n" + proc); |
| } catch (IOException | InterruptedException ex) { |
| Assert.fail(ex.getMessage()); |
| } finally { |
| if (procHandle != null) { |
| destroyProcessTree(procHandle); |
| } |
| } |
| } |
| |
| } |