| /* |
| * 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.SuspendThreadList; |
| |
| import java.io.PrintStream; |
| |
| import nsk.share.*; |
| import nsk.share.jvmti.*; |
| |
| public class suspendthrdlst001 extends DebugeeClass { |
| |
| // load native library if required |
| static { |
| System.loadLibrary("suspendthrdlst001"); |
| } |
| |
| // 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 suspendthrdlst001().runIt(argv, out); |
| } |
| |
| /* =================================================================== */ |
| |
| // scaffold objects |
| ArgumentHandler argHandler = null; |
| Log log = null; |
| long timeout = 0; |
| int status = Consts.TEST_PASSED; |
| |
| // constants |
| public static final int DEFAULT_THREADS_COUNT = 10; |
| |
| // tested thread |
| suspendthrdlst001Thread threads[] = null; |
| int threadsCount = 0; |
| |
| // run debuggee |
| public int runIt(String argv[], PrintStream out) { |
| argHandler = new ArgumentHandler(argv); |
| log = new Log(out, argHandler); |
| timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds |
| |
| threadsCount = argHandler.findOptionIntValue("threads", DEFAULT_THREADS_COUNT); |
| |
| // create tested threads |
| threads = new suspendthrdlst001Thread[threadsCount]; |
| for (int i = 0; i < threadsCount; i++) { |
| threads[i] = new suspendthrdlst001Thread("TestedThread #" + i); |
| } |
| |
| // run tested threads |
| log.display("Staring tested threads"); |
| try { |
| for (int i = 0; i < threadsCount; i++) { |
| threads[i].start(); |
| if (!threads[i].checkReady()) { |
| throw new Failure("Unable to prepare tested thread: " + threads[i]); |
| } |
| } |
| |
| // testing sync |
| log.display("Sync: thread started"); |
| status = checkStatus(status); |
| } finally { |
| // let threads to finish |
| for (int i = 0; i < threadsCount; i++) { |
| threads[i].letFinish(); |
| } |
| } |
| |
| // wait for thread to finish |
| log.display("Finishing tested threads"); |
| try { |
| for (int i = 0; i < threadsCount; i++) { |
| threads[i].join(); |
| } |
| } catch (InterruptedException e) { |
| throw new Failure(e); |
| } |
| |
| // testing sync |
| log.display("Sync: thread finished"); |
| status = checkStatus(status); |
| |
| return status; |
| } |
| } |
| |
| /* =================================================================== */ |
| |
| // basic class for tested threads |
| class suspendthrdlst001Thread extends Thread { |
| private volatile boolean threadReady = false; |
| private volatile boolean shouldFinish = false; |
| |
| // make thread with specific name |
| public suspendthrdlst001Thread(String name) { |
| super(name); |
| } |
| |
| // run thread continuously |
| public void run() { |
| // run in a loop |
| 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; |
| } |
| } |