| /* |
| * 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.SuspendThread; |
| |
| import java.io.PrintStream; |
| |
| import nsk.share.*; |
| import nsk.share.jvmti.*; |
| |
| public class suspendthrd003 extends DebugeeClass { |
| |
| final static int N_THREADS = 10; |
| |
| // load native library if required |
| static { |
| System.loadLibrary("suspendthrd003"); |
| } |
| |
| // run test from command line |
| public static void main(String argv[]) { |
| argv = nsk.share.jvmti.JVMTITest.commonInit(argv); |
| |
| // JCK-compatible exit |
| System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); |
| } |
| |
| // run test from JCK-compatible environment |
| public static int run(String argv[], PrintStream out) { |
| return new suspendthrd003().runIt(argv, out); |
| } |
| |
| /* =================================================================== */ |
| |
| // scaffold objects |
| ArgumentHandler argHandler = null; |
| Log log = null; |
| long timeout = 0; |
| int status = Consts.TEST_PASSED; |
| |
| // tested thread |
| suspendthrd003Thread thread = null; |
| |
| // run debuggee |
| public int runIt(String argv[], PrintStream out) { |
| argHandler = new ArgumentHandler(argv); |
| log = new Log(out, argHandler); |
| timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds |
| |
| for (int i = 0; i < N_THREADS; i++) { |
| System.out.println("Starting TestedThread #" + i + "."); |
| |
| // Original suspendthrd001 test block starts here: |
| // |
| // create tested thread |
| // Note: Cannot use TestedThread-N for thread name since |
| // the agent has to know the thread's name. |
| thread = new suspendthrd003Thread("TestedThread"); |
| |
| // run tested thread |
| log.display("Starting tested thread"); |
| try { |
| thread.start(); |
| // SP1-w - wait for TestedThread-N to be ready |
| if (!thread.checkReady()) { |
| throw new Failure("Unable to prepare tested thread: " + thread); |
| } |
| |
| // testing sync |
| log.display("Sync: thread started"); |
| // SP2.1-w - wait for agent thread |
| // SP3.1-n - notify to start test |
| // SP5.1-w - wait while testing |
| status = checkStatus(status); |
| } finally { |
| // let thread to finish |
| thread.letFinish(); |
| } |
| |
| // wait for thread to finish |
| log.display("Finishing tested thread"); |
| try { |
| thread.join(); |
| } catch (InterruptedException e) { |
| throw new Failure(e); |
| } |
| |
| // testing sync |
| log.display("Sync: thread finished"); |
| // SP4.1-w - second wait for agent thread |
| // SP6.1-n - notify to end test |
| // SP7.1 - wait for agent end |
| status = checkStatus(status); |
| |
| // |
| // Original suspendthrd001 test block ends here. |
| |
| if (status != Consts.TEST_PASSED) { |
| break; |
| } |
| |
| resetAgentData(); // reset for another iteration |
| } |
| |
| return status; |
| } |
| } |
| |
| /* =================================================================== */ |
| |
| // basic class for tested threads |
| class suspendthrd003Thread extends Thread { |
| private volatile boolean threadReady = false; |
| private volatile boolean shouldFinish = false; |
| |
| // make thread with specific name |
| public suspendthrd003Thread(String name) { |
| super(name); |
| } |
| |
| // run thread continuously |
| public void run() { |
| // run in a loop |
| // SP1-n - tell main we are ready |
| threadReady = true; |
| int i = 0; |
| int n = 1000; |
| while (!shouldFinish) { |
| if (n <= 0) { |
| n = 1000; |
| } |
| if (i > n) { |
| i = 0; |
| n = n - 1; |
| } |
| i = i + 1; |
| } |
| } |
| |
| // check if thread is ready |
| public boolean checkReady() { |
| try { |
| while (!threadReady) { |
| sleep(1000); |
| } |
| } catch (InterruptedException e) { |
| throw new Failure("Interruption while preparing tested thread: \n\t" + e); |
| } |
| return threadReady; |
| } |
| |
| // let thread to finish |
| public void letFinish() { |
| shouldFinish = true; |
| } |
| } |