| /* |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8044131 |
| * @summary Tests the hooks used for detecting idleness of the sjavac server. |
| * @modules jdk.compiler/com.sun.tools.sjavac.server |
| * @build Wrapper |
| * @run main Wrapper IdleShutdown |
| */ |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import com.sun.tools.javac.main.Main.Result; |
| import com.sun.tools.sjavac.server.IdleResetSjavac; |
| import com.sun.tools.sjavac.server.Sjavac; |
| import com.sun.tools.sjavac.server.Terminable; |
| |
| |
| public class IdleShutdown { |
| |
| final static long TEST_START = System.currentTimeMillis(); |
| final static long TIMEOUT_MS = 3000; |
| |
| public static void main(String[] args) throws InterruptedException { |
| |
| final AtomicLong timeoutTimestamp = new AtomicLong(-1); |
| |
| log("Starting IdleCallbackJavacService with timeout: " + TIMEOUT_MS); |
| Sjavac service = new IdleResetSjavac( |
| new NoopJavacService(), |
| new Terminable() { |
| public void shutdown(String msg) { |
| // Record the idle timeout time |
| log("Timeout detected"); |
| timeoutTimestamp.set(System.currentTimeMillis()); |
| } |
| }, |
| TIMEOUT_MS); |
| |
| // Make sure it didn't timeout immediately |
| if (timeoutTimestamp.get() != -1) |
| throw new AssertionError("Premature timeout detected."); |
| |
| // Use Sjavac object and wait less than TIMEOUT_MS in between calls |
| Thread.sleep(TIMEOUT_MS - 1000); |
| log("Compiling"); |
| service.compile(new String[0]); |
| |
| Thread.sleep(TIMEOUT_MS - 1000); |
| log("Compiling"); |
| service.compile(new String[0]); |
| |
| if (timeoutTimestamp.get() != -1) |
| throw new AssertionError("Premature timeout detected."); |
| |
| long expectedTimeout = System.currentTimeMillis() + TIMEOUT_MS; |
| |
| // Wait for actual timeout |
| log("Awaiting idle timeout"); |
| Thread.sleep(TIMEOUT_MS + 1000); |
| |
| // Check result |
| if (timeoutTimestamp.get() == -1) |
| throw new AssertionError("Timeout never occurred"); |
| |
| long error = Math.abs(expectedTimeout - timeoutTimestamp.get()); |
| log("Timeout error: " + error + " ms"); |
| if (error > TIMEOUT_MS * .1) |
| throw new AssertionError("Error too big"); |
| |
| log("Shutting down"); |
| service.shutdown(); |
| } |
| |
| private static void log(String msg) { |
| long logTime = System.currentTimeMillis() - TEST_START; |
| System.out.printf("After %5d ms: %s%n", logTime, msg); |
| } |
| |
| private static class NoopJavacService implements Sjavac { |
| @Override |
| public void shutdown() { |
| } |
| @Override |
| public Result compile(String[] args) { |
| // Attempt to trigger idle timeout during a call by sleeping |
| try { |
| Thread.sleep(TIMEOUT_MS + 1000); |
| } catch (InterruptedException e) { |
| } |
| return Result.OK; |
| } |
| } |
| } |