1 /* 2 * Copyright (c) 2003, 2018, 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 package nsk.jvmti.unit.MethodBind; 25 26 import java.io.PrintStream; 27 28 public class JvmtiTest { 29 30 final static int JCK_STATUS_BASE = 95; 31 final static int THREADS_LIMIT = 200; 32 final static String NAME_PREFIX = "JvmtiTest-"; 33 static int fail_id = 0; 34 35 static { 36 try { 37 System.loadLibrary("MethodBind"); 38 } catch (UnsatisfiedLinkError ule) { 39 System.err.println("Could not load MethodBind library"); 40 System.err.println("java.library.path:" 41 + System.getProperty("java.library.path")); 42 throw ule; 43 } 44 } 45 GetResult()46 native static int GetResult(); CreateRawMonitor(int i)47 native static void CreateRawMonitor(int i); RawMonitorEnter(int i)48 native static void RawMonitorEnter(int i); RawMonitorExit(int i)49 native static void RawMonitorExit(int i); RawMonitorWait(int i)50 native static void RawMonitorWait(int i); GetStackTrace(TestThread t)51 native static void GetStackTrace(TestThread t); GetFrameCount(TestThread t)52 native static int GetFrameCount(TestThread t); 53 54 55 static volatile int thrCount = 0; 56 main(String args[])57 public static void main(String args[]) { 58 args = nsk.share.jvmti.JVMTITest.commonInit(args); 59 60 // produce JCK-like exit status. 61 System.exit(run(args, System.out) + JCK_STATUS_BASE); 62 } 63 run(String args[], PrintStream out)64 public static int run(String args[], PrintStream out) { 65 CreateRawMonitor(0); 66 CreateRawMonitor(4); 67 TestThread t[] = new TestThread[THREADS_LIMIT]; 68 69 RawMonitorEnter(4); 70 71 for (int i=0; i < THREADS_LIMIT; i++) { 72 t[i] = new TestThread(NAME_PREFIX + thrCount); 73 t[i].start(); 74 } 75 76 77 for (int i=0; i < THREADS_LIMIT-1; i++) { 78 GetStackTrace(t[i]); 79 GetFrameCount(t[i]); 80 } 81 82 RawMonitorExit(4); 83 84 try { 85 for (int i=0; i < THREADS_LIMIT; i++) { 86 t[i].join(); 87 } 88 89 } catch (InterruptedException e) { 90 throw new Error("Unexpected: " + e); 91 } 92 return GetResult() + fail_id; 93 } 94 95 static class TestThread extends Thread { 96 static int counter=0; 97 int ind; TestThread(String name)98 public TestThread(String name) { 99 super(name); 100 } run()101 public void run() { 102 thrCount++; 103 foo(0); 104 } foo(int i)105 public void foo(int i) { 106 i++; 107 if ( i < 10 ) { 108 foo(i); 109 } else { 110 RawMonitorEnter(4); 111 RawMonitorExit(4); 112 } 113 114 } 115 } 116 } 117