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/*
* Copyright (c) 2001, 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.jdwp.ThreadReference.FrameCount;
import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdwp.*;
import java.io.*;
/**
* This class represents debuggee part in the test.
*/
public class framecnt001a {
// name for the tested thread
public static final String THREAD_NAME = "TestedThreadName";
public static final String FIELD_NAME = "thread";
// frames count for tested thread in recursive method invokation
public static final int FRAMES_COUNT = 10;
// notification object to notify debuggee that thread is ready
private static Object threadReady = new Object();
// lock object to prevent thread from exit
private static Object threadLock = new Object();
// scaffold objects
private static volatile ArgumentHandler argumentHandler = null;
private static volatile Log log = null;
public static void main(String args[]) {
framecnt001a _framecnt001a = new framecnt001a();
System.exit(framecnt001.JCK_STATUS_BASE + _framecnt001a.runIt(args, System.err));
}
public int runIt(String args[], PrintStream out) {
//make log for debugee messages
argumentHandler = new ArgumentHandler(args);
log = new Log(out, argumentHandler);
// make communication pipe to debugger
log.display("Creating pipe");
IOPipe pipe = argumentHandler.createDebugeeIOPipe(log);
// lock the object to prevent thread from exit
synchronized (threadLock) {
// load tested class and create tested thread
log.display("Creating object of tested class");
TestedClass.thread = new TestedClass(THREAD_NAME);
// start the thread and wait for notification from it
synchronized (threadReady) {
TestedClass.thread.start();
try {
threadReady.wait();
// send debugger signal READY
log.display("Sending signal to debugger: " + framecnt001.READY);
pipe.println(framecnt001.READY);
} catch (InterruptedException e) {
log.complain("Interruption while waiting for thread started: " + e);
pipe.println(framecnt001.ERROR);
}
}
// wait for signal QUIT from debugeer
log.display("Waiting for signal from debugger: " + framecnt001.QUIT);
String signal = pipe.readln();
log.display("Received signal from debugger: " + signal);
// check received signal
if (signal == null || !signal.equals(framecnt001.QUIT)) {
log.complain("Unexpected communication signal from debugee: " + signal
+ " (expected: " + framecnt001.QUIT + ")");
log.display("Debugee FAILED");
return framecnt001.FAILED;
}
// allow started thread to exit
}
// exit debugee
log.display("Debugee PASSED");
return framecnt001.PASSED;
}
// tested thread class
public static class TestedClass extends Thread {
// field with the tested Thread value
public static volatile TestedClass thread = null;
int frames = 0;
TestedClass(String name) {
super(name);
}
// start the thread and recursive invoke makeFrames()
public void run() {
log.display("Tested thread started");
// make remaining frames already having one
frames = 1;
makeFrames(FRAMES_COUNT - frames);
}
// recursive make thread frames and notify debuggee
public void makeFrames(int count) {
frames++;
count--;
int local = frames + count;
if (count > 0) {
makeFrames(count);
} else {
log.display("Thread frames made: " + frames);
// notify debuggee that thread ready for testing
synchronized (threadReady) {
threadReady.notifyAll();
}
// wait for lock object released
synchronized (threadLock) {
log.display("Tested thread finished");
}
}
}
}
}
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