| /* |
| * Copyright (c) 2003, 2018, 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. |
| */ |
| |
| package nsk.jvmti.PopFrame; |
| |
| import nsk.share.Wicket; |
| import java.io.PrintStream; |
| |
| /** |
| * This test checks that a frame can be popped and<br> |
| * no JVMTI events would be generated by the JVMTI function |
| * <code>PopFrame()</code>.<br> |
| * The test creates an instance of inner class <code>popFrameCls</code> |
| * and start it in a separate thread. Then the test pops frame |
| * from the thread's stack of the class <code>popFrameCls</code>. |
| */ |
| public class popframe001 { |
| static final int PASSED = 0; |
| static final int FAILED = 2; |
| static final int JCK_STATUS_BASE = 95; |
| |
| static boolean DEBUG_MODE = false; |
| static volatile boolean popFdone = false; |
| static volatile int totRes = PASSED; |
| private PrintStream out; |
| private popFrameCls popFrameClsThr; |
| static Object barrier = new Object(); |
| static Wicket startingBarrier; |
| |
| static { |
| try { |
| System.loadLibrary("popframe001"); |
| } catch (UnsatisfiedLinkError e) { |
| System.err.println("Could not load popframe001 library"); |
| System.err.println("java.library.path:" + |
| System.getProperty("java.library.path")); |
| throw e; |
| } |
| } |
| |
| native static int doPopFrame(int vrb, popFrameCls popFrameClsThr); |
| native static int suspThread(int vrb, popFrameCls popFrameClsThr); |
| native static int resThread(int vrb, popFrameCls popFrameClsThr); |
| |
| public static void main(String[] argv) { |
| argv = nsk.share.jvmti.JVMTITest.commonInit(argv); |
| |
| System.exit(run(argv, System.out) + JCK_STATUS_BASE); |
| } |
| |
| public static int run(String argv[], PrintStream out) { |
| return new popframe001().runIt(argv, out); |
| } |
| |
| private int runIt(String argv[], PrintStream out) { |
| int retValue = 0; |
| |
| this.out = out; |
| for (int i = 0; i < argv.length; i++) { |
| if (argv[i].equals("-v")) // verbose mode |
| DEBUG_MODE = true; |
| } |
| |
| popFrameClsThr = new popFrameCls("Tested Thread"); |
| startingBarrier = new Wicket(); |
| // start the child thread |
| popFrameClsThr.start(); |
| startingBarrier.waitFor(); |
| // pause until the child thread exits notification-block |
| synchronized (barrier) { |
| } |
| |
| if (DEBUG_MODE) { |
| out.println("Going to suspend the thread..."); |
| retValue = suspThread(1, popFrameClsThr); |
| } else |
| retValue = suspThread(0, popFrameClsThr); |
| if (retValue != PASSED) { |
| out.println("TEST: failed to suspend thread"); |
| return FAILED; |
| } |
| |
| // pop a frame of the child thread |
| if (DEBUG_MODE) { |
| out.println("Going to pop a frame..."); |
| retValue = doPopFrame(1, popFrameClsThr); |
| } else |
| retValue = doPopFrame(0, popFrameClsThr); |
| popFdone = true; |
| popFrameClsThr.letItGo(); |
| if (retValue != PASSED) { |
| out.println("TEST: failed to pop frame"); |
| resThread(0, popFrameClsThr); |
| return FAILED; |
| } |
| |
| if (DEBUG_MODE) { |
| out.println("Going to resume the thread..."); |
| retValue = resThread(1, popFrameClsThr); |
| } else |
| retValue = resThread(0, popFrameClsThr); |
| if (retValue != PASSED) { |
| out.println("TEST: failed to resume thread"); |
| return FAILED; |
| } |
| |
| try { |
| popFrameClsThr.join(); |
| } catch (InterruptedException e) { |
| out.println("TEST INCOMPLETE: caught " + e); |
| return FAILED; |
| } |
| |
| return totRes; |
| } |
| |
| class popFrameCls extends Thread { |
| private volatile boolean flag = true; |
| |
| popFrameCls(String name) { |
| super(name); |
| } |
| |
| public void run() { |
| activeMethod(); |
| if (DEBUG_MODE) |
| out.println("popFrameCls (" + this + |
| "): exiting..."); |
| } |
| |
| public void activeMethod() { |
| boolean compl = true; // complain in a finally block |
| |
| if (popframe001.popFdone) { // popping has been done |
| if (DEBUG_MODE) |
| out.println("popFrameCls (" + this + |
| "): enter activeMethod() after popping"); |
| return; |
| } |
| try { |
| // notify the main thread |
| synchronized (popframe001.barrier) { |
| if (DEBUG_MODE) |
| out.println("popFrameCls (" + this + |
| "): notifying main thread"); |
| popframe001.startingBarrier.unlock(); |
| if (DEBUG_MODE) |
| out.println("popFrameCls (" + this + |
| "): inside activeMethod()"); |
| } |
| // loop until the main thread pops us |
| int i = 0; |
| int n = 1000; |
| while (flag) { |
| if (n <= 0) { |
| n = 1000; |
| } |
| if (i > n) { |
| i = 0; |
| n--; |
| } |
| i++; |
| } |
| if (popframe001.popFdone) { // popping has been done |
| out.println("TEST FAILED: a tested frame has not been really popped"); |
| popframe001.totRes = FAILED; |
| compl = false; |
| } |
| } catch (Exception e) { |
| out.println("FAILURE: popFrameCls (" + this + "): caught " + e); |
| popframe001.totRes = FAILED; |
| compl = false; |
| } finally { |
| if (compl) { |
| out.println("TEST FAILED: finally block was executed after PopFrame()"); |
| popframe001.totRes = FAILED; |
| } |
| } |
| } |
| |
| public void letItGo() { |
| flag = false; |
| } |
| } |
| } |