| /* |
| * Copyright (c) 2017, 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.File; |
| import java.nio.file.Paths; |
| import java.time.Duration; |
| |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| |
| import sun.hotspot.WhiteBox; |
| |
| /* |
| * @test HandshakeTransitionTest |
| * @summary This does a sanity test of the poll in the native wrapper. |
| * @requires vm.debug |
| * @library /testlibrary /test/lib |
| * @build HandshakeTransitionTest |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI HandshakeTransitionTest |
| */ |
| |
| public class HandshakeTransitionTest { |
| |
| public static native void someTime(int ms); |
| |
| public static void main(String[] args) throws Exception { |
| String lib = System.getProperty("test.nativepath"); |
| WhiteBox wb = WhiteBox.getWhiteBox(); |
| Boolean useJVMCICompiler = wb.getBooleanVMFlag("UseJVMCICompiler"); |
| String useJVMCICompilerStr; |
| if (useJVMCICompiler != null) { |
| useJVMCICompilerStr = useJVMCICompiler ? "-XX:+UseJVMCICompiler" : "-XX:-UseJVMCICompiler"; |
| } else { |
| // pass something innocuous |
| useJVMCICompilerStr = "-XX:+UnlockExperimentalVMOptions"; |
| } |
| ProcessBuilder pb = |
| ProcessTools.createJavaProcessBuilder( |
| true, |
| "-Djava.library.path=" + lib, |
| "-XX:+SafepointALot", |
| "-XX:GuaranteedSafepointInterval=20", |
| "-Xlog:ergo*", |
| "-XX:ParallelGCThreads=1", |
| "-XX:ConcGCThreads=1", |
| "-XX:CICompilerCount=2", |
| "-XX:+UnlockExperimentalVMOptions", |
| useJVMCICompilerStr, |
| "HandshakeTransitionTest$Test"); |
| |
| |
| OutputAnalyzer output = ProcessTools.executeProcess(pb); |
| output.reportDiagnosticSummary(); |
| output.shouldHaveExitValue(0); |
| output.stdoutShouldContain("JOINED"); |
| } |
| |
| static class Test implements Runnable { |
| final static int testLoops = 2000; |
| final static int testSleep = 1; //ms |
| |
| public static void main(String[] args) throws Exception { |
| System.loadLibrary("HandshakeTransitionTest"); |
| Test test = new Test(); |
| Thread[] threads = new Thread[64]; |
| for (int i = 0; i<threads.length ; i++) { |
| threads[i] = new Thread(test); |
| threads[i].start(); |
| } |
| for (Thread t : threads) { |
| t.join(); |
| } |
| System.out.println("JOINED"); |
| } |
| |
| @Override |
| public void run() { |
| try { |
| for (int i = 0; i<testLoops ; i++) { |
| someTime(testSleep); |
| } |
| } catch (Exception e) { |
| System.out.println(e.getMessage()); |
| System.exit(1); |
| } |
| } |
| } |
| } |