test/hotspot/jtreg/vmTestbase/nsk/stress/strace/strace011.java - platform/libcore - Git at Google

 /*
  * 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.
  */

 /*
  * @test
  * @key stress
  *
  * @summary converted from VM testbase nsk/stress/strace/strace011.
  * VM testbase keywords: [stress, quick, strace]
  * VM testbase readme:
  * DESCRIPTION
  *     The test runs many threads, that recursively invoke a native method.
  *     After arriving at defined depth of recursion, each thread is blocked
  *     on entering a monitor. Then the test calls java.lang.Thread.getStackTrace()
  *     and java.lang.Thread.getAllStackTraces() methods and checks their results.
  *     The test fails if:
  *     - amount of stack trace elements and stack trace elements themselves are
  *       the same for both methods;
  *     - there is at least one element corresponding to invocation of unexpected
  *       method. Expected methods are Thread.sleep(), Thread.run() and the
  *       recursive method.
  *     This test is almost the same as nsk.stress.strace.010 except for
  *     the recursive method is a native one.
  *
  * @library /vmTestbase
  *          /test/lib
  * @run driver jdk.test.lib.FileInstaller . .
  * @run main/othervm/native nsk.stress.strace.strace011
  */

 package nsk.stress.strace;

 import nsk.share.ArgumentParser;
 import nsk.share.Log;

 import java.io.PrintStream;
 import java.util.Map;

 /**
  * The test runs <code>THRD_COUNT</code> instances of <code>strace011Thread</code>,
  * that recursively invoke a native method. After arriving at defined depth
  * <code>DEPTH</code> of recursion, each thread is blocked on entering a monitor.
  * Then the test calls <code>java.lang.Thread.getStackTrace()</code> and
  * <code>java.lang.Thread.getAllStackTraces()</code> methods and checks their results.
  * <p>
  * <p>It is expected that these methods return the same stack traces. Each stack frame
  * for both stack traces must be corresponded to invocation of one of the methods
  * defined by the <code>EXPECTED_METHODS</code> array.</p>
  */
 public class strace011 {

     static final int DEPTH = 100;
     static final int THRD_COUNT = 50;
     static final String[] EXPECTED_METHODS = {
             "java.lang.Thread.sleep",
             "nsk.stress.strace.strace011Thread.run",
             "nsk.stress.strace.strace011Thread.recursiveMethod"
     };


     static PrintStream out;
     static long waitTime = 2;

     public static Object lockedObject = new Object();
     static volatile boolean isLocked = false;

     static volatile int achivedCount = 0;
     strace011Thread[] threads;
     static Log log;

     public static void main(String[] args) {
         out = System.out;
         int exitCode = run(args);
         System.exit(exitCode + 95);
     }

     public static int run(String[] args) {
         ArgumentParser argHandler = new ArgumentParser(args);
         log = new Log(out, argHandler);
         waitTime = argHandler.getWaitTime() * 60000;

         strace011 test = new strace011();
         boolean res = true;

         test.startThreads();

         res = test.makeSnapshot();

         test.finishThreads();

         if (!res) {
             complain("***>>>Test failed<<<***");
             return 2;
         }

         display(">>>Test passed<<<");
         return 0;
     }

     void startThreads() {
         threads = new strace011Thread[THRD_COUNT];
         achivedCount = 0;

         String tmp_name;
         display("starting threads...");
         for (int i = 0; i < THRD_COUNT; i++) {
             tmp_name = "strace011Thread" + Integer.toString(i);
             threads[i] = new strace011Thread(this, tmp_name);
             threads[i].start();
         }

         waitFor("the defined recursion depth ...");
     }

     void waitFor(String msg) {
         if (msg.length() > 0)
             display("waiting for " + msg);

         while (achivedCount < THRD_COUNT) {
             try {
                 Thread.sleep(1);
             } catch (InterruptedException e) {
                 complain("" + e);
             }
         }
         achivedCount = 0;
     }

     boolean makeSnapshot() {

         Map traces = null;
         int count = 0;
         StackTraceElement[][] elements = null;

         display("locking object...");
         synchronized (strace011.lockedObject) {
             isLocked = true;
             synchronized (this) {
                 notifyAll();
             }
             Thread.currentThread().yield();
             waitFor("lockedObject");

             display("making all threads snapshots...");
             traces = Thread.getAllStackTraces();
             count = ((StackTraceElement[]) traces.get(threads[0])).length;

             display("making snapshots of each thread...");
             elements = new StackTraceElement[THRD_COUNT][];
             for (int i = 0; i < THRD_COUNT; i++) {
                 elements[i] = threads[i].getStackTrace();
             }
         }
         display("object unlocked");

         display("");

         display("checking lengths of stack traces...");
         StackTraceElement[] all;
         for (int i = 1; i < THRD_COUNT; i++) {
             all = (StackTraceElement[]) traces.get(threads[i]);
             int k = all.length;
             if (count - k > 2) {
                 complain("wrong lengths of stack traces:\n\t"
                         + threads[0].getName() + ": " + count
                         + "\t"
                         + threads[i].getName() + ": " + k);
                 return false;
             }
         }

         display("checking stack traces...");
         boolean res = true;
         for (int i = 0; i < THRD_COUNT; i++) {
             all = (StackTraceElement[]) traces.get(threads[i]);
             if (!checkTraces(threads[i].getName(), elements[i], all)) {
                 res = false;
             }
         }
         return res;
     }

     boolean checkTraces(String threadName, StackTraceElement[] threadSnap,
                         StackTraceElement[] allSnap) {

         int checkedLength = threadSnap.length < allSnap.length ?
                 threadSnap.length : allSnap.length;
         boolean res = true;

         for (int j = 0; j < checkedLength; j++) {
             if (!checkElement(threadSnap[j])) {
                 complain("Unexpected " + j + "-element:");
                 complain("\tmethod name: " + threadSnap[j].getMethodName());
                 complain("\tclass name: " + threadSnap[j].getClassName());
                 if (threadSnap[j].isNativeMethod()) {
                     complain("\tline number: (native method)");
                 } else {
                     complain("\tline number: " + threadSnap[j].getLineNumber());
                     complain("\tfile name: " + threadSnap[j].getFileName());
                 }
                 complain("");
                 res = false;
             }
         }
         return res;
     }

     boolean checkElement(StackTraceElement element) {
         String name = element.getClassName() + "." + element.getMethodName();
         for (int i = 0; i < EXPECTED_METHODS.length; i++) {
             if (EXPECTED_METHODS[i].compareTo(name) == 0)
                 return true;
         }
         return false;
     }

     void finishThreads() {
         try {
             for (int i = 0; i < threads.length; i++) {
                 if (threads[i].isAlive()) {
                     display("waiting for finish " + threads[i].getName());
                     threads[i].join(waitTime);
                 }
             }
         } catch (InterruptedException e) {
             complain("" + e);
         }
         isLocked = false;
     }

     static void display(String message) {
         log.display(message);
     }

     static void complain(String message) {
         log.complain(message);
     }

 }

 class strace011Thread extends Thread {

     private int currentDepth = 0;

     strace011 test;

     static {
         try {
             System.loadLibrary("strace011");
         } catch (UnsatisfiedLinkError e) {
             System.err.println("Could not load strace011 library");
             System.err.println("java.library.path:"
                     + System.getProperty("java.library.path"));
             throw e;
         }
     }

     strace011Thread(strace011 test, String name) {
         this.test = test;
         setName(name);
     }

     public void run() {

         recursiveMethod();

     }

     native void recursiveMethod();
 }
	/*
	* 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.
	*/

	/*
	* @test
	* @key stress
	*
	* @summary converted from VM testbase nsk/stress/strace/strace011.
	* VM testbase keywords: [stress, quick, strace]
	* VM testbase readme:
	* DESCRIPTION
	* The test runs many threads, that recursively invoke a native method.
	* After arriving at defined depth of recursion, each thread is blocked
	* on entering a monitor. Then the test calls java.lang.Thread.getStackTrace()
	* and java.lang.Thread.getAllStackTraces() methods and checks their results.
	* The test fails if:
	* - amount of stack trace elements and stack trace elements themselves are
	* the same for both methods;
	* - there is at least one element corresponding to invocation of unexpected
	* method. Expected methods are Thread.sleep(), Thread.run() and the
	* recursive method.
	* This test is almost the same as nsk.stress.strace.010 except for
	* the recursive method is a native one.
	*
	* @library /vmTestbase
	* /test/lib
	* @run driver jdk.test.lib.FileInstaller . .
	* @run main/othervm/native nsk.stress.strace.strace011
	*/

	package nsk.stress.strace;

	import nsk.share.ArgumentParser;
	import nsk.share.Log;

	import java.io.PrintStream;
	import java.util.Map;

	/**
	* The test runs <code>THRD_COUNT</code> instances of <code>strace011Thread</code>,
	* that recursively invoke a native method. After arriving at defined depth
	* <code>DEPTH</code> of recursion, each thread is blocked on entering a monitor.
	* Then the test calls <code>java.lang.Thread.getStackTrace()</code> and
	* <code>java.lang.Thread.getAllStackTraces()</code> methods and checks their results.
	* <p>
	* <p>It is expected that these methods return the same stack traces. Each stack frame
	* for both stack traces must be corresponded to invocation of one of the methods
	* defined by the <code>EXPECTED_METHODS</code> array.</p>
	*/
	public class strace011 {

	static final int DEPTH = 100;
	static final int THRD_COUNT = 50;
	static final String[] EXPECTED_METHODS = {
	"java.lang.Thread.sleep",
	"nsk.stress.strace.strace011Thread.run",
	"nsk.stress.strace.strace011Thread.recursiveMethod"
	};


	static PrintStream out;
	static long waitTime = 2;

	public static Object lockedObject = new Object();
	static volatile boolean isLocked = false;

	static volatile int achivedCount = 0;
	strace011Thread[] threads;
	static Log log;

	public static void main(String[] args) {
	out = System.out;
	int exitCode = run(args);
	System.exit(exitCode + 95);
	}

	public static int run(String[] args) {
	ArgumentParser argHandler = new ArgumentParser(args);
	log = new Log(out, argHandler);
	waitTime = argHandler.getWaitTime() * 60000;

	strace011 test = new strace011();
	boolean res = true;

	test.startThreads();

	res = test.makeSnapshot();

	test.finishThreads();

	if (!res) {
	complain("*>>>Test failed<<<*");
	return 2;
	}

	display(">>>Test passed<<<");
	return 0;
	}

	void startThreads() {
	threads = new strace011Thread[THRD_COUNT];
	achivedCount = 0;

	String tmp_name;
	display("starting threads...");
	for (int i = 0; i < THRD_COUNT; i++) {
	tmp_name = "strace011Thread" + Integer.toString(i);
	threads[i] = new strace011Thread(this, tmp_name);
	threads[i].start();
	}

	waitFor("the defined recursion depth ...");
	}

	void waitFor(String msg) {
	if (msg.length() > 0)
	display("waiting for " + msg);

	while (achivedCount < THRD_COUNT) {
	try {
	Thread.sleep(1);
	} catch (InterruptedException e) {
	complain("" + e);
	}
	}
	achivedCount = 0;
	}

	boolean makeSnapshot() {

	Map traces = null;
	int count = 0;
	StackTraceElement[][] elements = null;

	display("locking object...");
	synchronized (strace011.lockedObject) {
	isLocked = true;
	synchronized (this) {
	notifyAll();
	}
	Thread.currentThread().yield();
	waitFor("lockedObject");

	display("making all threads snapshots...");
	traces = Thread.getAllStackTraces();
	count = ((StackTraceElement[]) traces.get(threads[0])).length;

	display("making snapshots of each thread...");
	elements = new StackTraceElement[THRD_COUNT][];
	for (int i = 0; i < THRD_COUNT; i++) {
	elements[i] = threads[i].getStackTrace();
	}
	}
	display("object unlocked");

	display("");

	display("checking lengths of stack traces...");
	StackTraceElement[] all;
	for (int i = 1; i < THRD_COUNT; i++) {
	all = (StackTraceElement[]) traces.get(threads[i]);
	int k = all.length;
	if (count - k > 2) {
	complain("wrong lengths of stack traces:\n\t"
	+ threads[0].getName() + ": " + count
	+ "\t"
	+ threads[i].getName() + ": " + k);
	return false;
	}
	}

	display("checking stack traces...");
	boolean res = true;
	for (int i = 0; i < THRD_COUNT; i++) {
	all = (StackTraceElement[]) traces.get(threads[i]);
	if (!checkTraces(threads[i].getName(), elements[i], all)) {
	res = false;
	}
	}
	return res;
	}

	boolean checkTraces(String threadName, StackTraceElement[] threadSnap,
	StackTraceElement[] allSnap) {

	int checkedLength = threadSnap.length < allSnap.length ?
	threadSnap.length : allSnap.length;
	boolean res = true;

	for (int j = 0; j < checkedLength; j++) {
	if (!checkElement(threadSnap[j])) {
	complain("Unexpected " + j + "-element:");
	complain("\tmethod name: " + threadSnap[j].getMethodName());
	complain("\tclass name: " + threadSnap[j].getClassName());
	if (threadSnap[j].isNativeMethod()) {
	complain("\tline number: (native method)");
	} else {
	complain("\tline number: " + threadSnap[j].getLineNumber());
	complain("\tfile name: " + threadSnap[j].getFileName());
	}
	complain("");
	res = false;
	}
	}
	return res;
	}

	boolean checkElement(StackTraceElement element) {
	String name = element.getClassName() + "." + element.getMethodName();
	for (int i = 0; i < EXPECTED_METHODS.length; i++) {
	if (EXPECTED_METHODS[i].compareTo(name) == 0)
	return true;
	}
	return false;
	}

	void finishThreads() {
	try {
	for (int i = 0; i < threads.length; i++) {
	if (threads[i].isAlive()) {
	display("waiting for finish " + threads[i].getName());
	threads[i].join(waitTime);
	}
	}
	} catch (InterruptedException e) {
	complain("" + e);
	}
	isLocked = false;
	}

	static void display(String message) {
	log.display(message);
	}

	static void complain(String message) {
	log.complain(message);
	}

	}

	class strace011Thread extends Thread {

	private int currentDepth = 0;

	strace011 test;

	static {
	try {
	System.loadLibrary("strace011");
	} catch (UnsatisfiedLinkError e) {
	System.err.println("Could not load strace011 library");
	System.err.println("java.library.path:"
	+ System.getProperty("java.library.path"));
	throw e;
	}
	}

	strace011Thread(strace011 test, String name) {
	this.test = test;
	setName(name);
	}

	public void run() {

	recursiveMethod();

	}

	native void recursiveMethod();
	}