1 /* 2 * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 import jdk.test.lib.Utils; 26 import jdk.test.lib.process.ProcessTools; 27 import jdk.test.lib.process.OutputAnalyzer; 28 29 import sun.hotspot.WhiteBox; 30 31 /* 32 * @test HandshakeTransitionTest 33 * @summary This does a sanity test of the poll in the native wrapper. 34 * @requires vm.debug 35 * @library /testlibrary /test/lib 36 * @build HandshakeTransitionTest 37 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 38 * @run main/othervm/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI HandshakeTransitionTest 39 */ 40 41 public class HandshakeTransitionTest { someTime(int ms)42 public static native void someTime(int ms); 43 main(String[] args)44 public static void main(String[] args) throws Exception { 45 WhiteBox wb = WhiteBox.getWhiteBox(); 46 Boolean useJVMCICompiler = wb.getBooleanVMFlag("UseJVMCICompiler"); 47 String useJVMCICompilerStr; 48 if (useJVMCICompiler != null) { 49 useJVMCICompilerStr = useJVMCICompiler ? "-XX:+UseJVMCICompiler" : "-XX:-UseJVMCICompiler"; 50 } else { 51 // pass something innocuous 52 useJVMCICompilerStr = "-XX:+UnlockExperimentalVMOptions"; 53 } 54 ProcessBuilder pb = 55 ProcessTools.createTestJvm( 56 "-Djava.library.path=" + Utils.TEST_NATIVE_PATH, 57 "-XX:+SafepointALot", 58 "-XX:+HandshakeALot", 59 "-XX:GuaranteedSafepointInterval=20", 60 "-Xlog:ergo*", 61 "-XX:ParallelGCThreads=1", 62 "-XX:ConcGCThreads=1", 63 "-XX:CICompilerCount=2", 64 "-XX:+UnlockExperimentalVMOptions", 65 useJVMCICompilerStr, 66 "HandshakeTransitionTest$Test"); 67 68 OutputAnalyzer output = ProcessTools.executeProcess(pb); 69 output.reportDiagnosticSummary(); 70 output.shouldHaveExitValue(0); 71 output.stdoutShouldContain("JOINED"); 72 } 73 74 static class Test implements Runnable { 75 final static int testLoops = 2000; 76 final static int testSleep = 1; //ms 77 main(String[] args)78 public static void main(String[] args) throws Exception { 79 System.loadLibrary("HandshakeTransitionTest"); 80 Test test = new Test(); 81 Thread[] threads = new Thread[64]; 82 for (int i = 0; i<threads.length ; i++) { 83 threads[i] = new Thread(test); 84 threads[i].start(); 85 } 86 for (Thread t : threads) { 87 t.join(); 88 } 89 System.out.println("JOINED"); 90 } 91 92 @Override run()93 public void run() { 94 try { 95 for (int i = 0; i<testLoops ; i++) { 96 someTime(testSleep); 97 } 98 } catch (Exception e) { 99 System.out.println(e.getMessage()); 100 System.exit(1); 101 } 102 } 103 } 104 } 105