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/*
* Copyright (c) 2001, 2019, 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.jdi.ThreadReference.suspend;
import jdk.test.lib.Utils;
import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdi.*;
import com.sun.jdi.*;
import java.util.*;
import java.io.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;
/**
* The test for the implementation of an object of the type <BR>
* ThreadReference. <BR>
* <BR>
* The test checks up that results of the method <BR>
* <code>com.sun.jdi.ThreadReference.suspend()</code> <BR>
* complies with its spec. <BR>
* <BR>
* The cases for testing are as follows. <BR>
* After being started up, <BR>
* a debuggee creates a 'lockingObject' for synchronizing threads, <BR>
* enters a synchronized block in which it creates new thread, thread2, <BR>
* informs a debugger of the thread2 creation, and is waiting for reply.<BR>
* Since thread2 uses the same locking object in its 'run' method <BR>
* it is locked up until first thread leaves the synchronized block. <BR>
* Upon the receiption a message from the debuggee, the debugger <BR>
* sets up breakpoints within thread2's methods and checks up that <BR>
* call to the method thread2.suspend() does suspend the thread2 when <BR>
* - the thread2 is not suspended and when <BR>
* - it is suspended at a breakpoint <BR>
* In both cases is expected that resuming the thread2 results in <BR>
* timeout for waiting for the thread2 gets stopping at a breakpoint. <BR>
*/
public class suspend001 {
//----------------------------------------------------- templete section
static final int PASSED = 0;
static final int FAILED = 2;
static final int PASS_BASE = 95;
//----------------------------------------------------- templete parameters
static final String
sHeader1 = "\n==> nsk/jdi/ThreadReference/suspend/suspend001 ",
sHeader2 = "--> debugger: ",
sHeader3 = "##> debugger: ";
//----------------------------------------------------- main method
public static void main (String argv[]) {
int result = run(argv, System.out);
System.exit(result + PASS_BASE);
}
public static int run (String argv[], PrintStream out) {
return new suspend001().runThis(argv, out);
}
//-------------------------------------------------- log procedures
private static Log logHandler;
private static void log1(String message) {
logHandler.display(sHeader1 + message);
}
private static void log2(String message) {
logHandler.display(sHeader2 + message);
}
private static void log3(String message) {
logHandler.complain(sHeader3 + message);
}
// ************************************************ test parameters
private String debuggeeName =
"nsk.jdi.ThreadReference.suspend.suspend001a";
private String testedClassName =
"nsk.jdi.ThreadReference.suspend.Threadsuspend001a";
//String mName = "nsk.jdi.ThreadReference.suspend";
//====================================================== test program
//------------------------------------------------------ common section
static ArgumentHandler argsHandler;
static int waitTime;
static VirtualMachine vm = null;
static EventRequestManager eventRManager = null;
static EventQueue eventQueue = null;
static EventSet eventSet = null;
ReferenceType testedclass = null;
ThreadReference thread2 = null;
ThreadReference mainThread = null;
static int testExitCode = PASSED;
static final int returnCode0 = 0;
static final int returnCode1 = 1;
static final int returnCode2 = 2;
static final int returnCode3 = 3;
static final int returnCode4 = 4;
//------------------------------------------------------ methods
private int runThis (String argv[], PrintStream out) {
Debugee debuggee;
argsHandler = new ArgumentHandler(argv);
logHandler = new Log(out, argsHandler);
Binder binder = new Binder(argsHandler, logHandler);
if (argsHandler.verbose()) {
debuggee = binder.bindToDebugee(debuggeeName + " -vbs");
} else {
debuggee = binder.bindToDebugee(debuggeeName);
}
waitTime = argsHandler.getWaitTime();
IOPipe pipe = new IOPipe(debuggee);
debuggee.redirectStderr(out);
log2(debuggeeName + " debuggee launched");
debuggee.resume();
String line = pipe.readln();
if ((line == null) || !line.equals("ready")) {
log3("signal received is not 'ready' but: " + line);
return FAILED;
} else {
log2("'ready' recieved");
}
vm = debuggee.VM();
//------------------------------------------------------ testing section
log1(" TESTING BEGINS");
for (int i = 0; ; i++) {
pipe.println("newcheck");
line = pipe.readln();
if (line.equals("checkend")) {
log2(" : returned string is 'checkend'");
break ;
} else if (!line.equals("checkready")) {
log3("ERROR: returned string is not 'checkready'");
testExitCode = FAILED;
break ;
}
log1("new checkready: #" + i);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ variable part
int expresult = returnCode0;
eventRManager = vm.eventRequestManager();
eventQueue = vm.eventQueue();
String threadName = "testedThread";
String breakpointMethod1 = "runt1";
String breakpointMethod2 = "runt2";
String bpLine1 = "breakpointLineNumber1";
String bpLine2 = "breakpointLineNumber2";
//String bpLine3 = "breakpointLineNumber3";
List allThreads = null;
ListIterator listIterator = null;
List classes = null;
BreakpointRequest breakpRequest1 = null;
BreakpointRequest breakpRequest2 = null;
//BreakpointRequest breakpRequest3 = null;
label0: {
log2("getting ThreadReference objects and setting up breakponts");
try {
allThreads = vm.allThreads();
classes = vm.classesByName(testedClassName);
testedclass = (ReferenceType) classes.get(0);
} catch ( Exception e) {
log3("ERROR: Exception at very beginning !? : " + e);
expresult = returnCode1;
break label0;
}
listIterator = allThreads.listIterator();
for (;;) {
try {
thread2 = (ThreadReference) listIterator.next();
if (thread2.name().equals(threadName))
break ;
} catch ( NoSuchElementException e ) {
log3("ERROR: NoSuchElementException for listIterator.next()");
log3("ERROR: NO THREAD2 ?????????!!!!!!!");
expresult = returnCode1;
break label0;
}
}
log2("setting up breakpoints");
breakpRequest1 = settingBreakpoint(breakpointMethod1, bpLine1, "one");
if (breakpRequest1 == null) {
expresult = returnCode1;
break label0;
}
breakpRequest2 = settingBreakpoint(breakpointMethod2, bpLine2, "two");
if (breakpRequest2 == null) {
expresult = returnCode1;
break label0;
}
}
label1: {
if (expresult != returnCode0)
break label1;
log2("......checking up that thread2.suspend() does suspend the non-suspended thread2");
log2(" suspending the thread2");
thread2.suspend();
log2(" enabling breakpRequest1");
breakpRequest1.enable();
log2(" forcing the main thread to leave synchronized block");
pipe.println("continue");
line = pipe.readln();
if (!line.equals("docontinue")) {
log3("ERROR: returned string is not 'docontinue'");
expresult = returnCode4;
}
if (expresult != returnCode0)
break label1;
log2(" checking up that the thread2 is not at breakpoint1 because of suspension");
expresult = breakpoint();
if (expresult != returnCode3) {
log3("ERROR: no timeout for waiting for BreakpointEvent when the thread2 is suspended");
expresult = returnCode1;
break label1;
} else
expresult = returnCode0;
log2("......checking up that thread2.suspend() does suspend the suspended thread2");
log2(" resuming the thread2 with thread2.resume();");
thread2.resume();
log2(" getting BreakpointEvent");
expresult = breakpoint();
if (expresult != returnCode0)
break label1;
log2(" thread2 is at breakpoint");
if (!thread2.isSuspended()) {
log3("ERROR: !thread2.isSuspended() at the breakpoint ???");
expresult = returnCode1;
break label1;
}
log2(" suspending the thread2");
thread2.suspend();
log2(" enabling breakpRequest2");
breakpRequest2.enable();
log2(" resuming the thread2 with eventSet.resume();");
eventSet.resume();
log2(" checking up that the thread2 is not at breakpoint2 because of suspension");
expresult = breakpoint();
if (expresult != returnCode3) {
log3("ERROR: no timeout for waiting for BreakpointEvent when the thread2 is suspended");
expresult = returnCode1;
break label1;
} else
expresult = returnCode0;
log2(" resuming the thread2 with thread2.resume();");
thread2.resume();
log2(" getting BreakpointEvent");
expresult = breakpoint();
if (expresult == returnCode0) {
log2(" thread2 is at breakpoint");
log2(" resuming the thread2 with eventSet.resume();");
eventSet.resume();
} else {
log3("ERROR: breakpoint was not reached");
expresult = returnCode1;
break label1;
}
}
if (expresult != returnCode0)
testExitCode = FAILED;
}
log1(" TESTING ENDS");
//-------------------------------------------------- test summary section
//------------------------------------------------- standard end section
pipe.println("quit");
log2("waiting for the debuggee to finish ...");
debuggee.waitFor();
int status = debuggee.getStatus();
if (status != PASSED + PASS_BASE) {
log3("debuggee returned UNEXPECTED exit status: " +
status + " != PASS_BASE");
testExitCode = FAILED;
} else {
log2("debuggee returned expected exit status: " +
status + " == PASS_BASE");
}
if (testExitCode != PASSED) {
logHandler.complain("TEST FAILED");
}
return testExitCode;
}
/*
* private BreakpointRequest settingBreakpoint(String, String, String)
*
* It sets up a breakpoint within a given method at given line number
* for the thread2 only.
* Third parameter is required for any case in future debugging, as if.
*
* Return codes:
* = BreakpointRequest object in case of success
* = null in case of an Exception thrown within the method
*/
private BreakpointRequest settingBreakpoint ( String methodName,
String bpLine,
String property) {
log2("setting up a breakpoint: method: '" + methodName + "' line: " + bpLine );
List alllineLocations = null;
Location lineLocation = null;
BreakpointRequest breakpRequest = null;
try {
Method method = (Method) testedclass.methodsByName(methodName).get(0);
alllineLocations = method.allLineLocations();
int n =
( (IntegerValue) testedclass.getValue(testedclass.fieldByName(bpLine) ) ).value();
if (n > alllineLocations.size()) {
log3("ERROR: TEST_ERROR_IN_settingBreakpoint(): number is out of bound of method's lines");
} else {
lineLocation = (Location) alllineLocations.get(n);
try {
breakpRequest = eventRManager.createBreakpointRequest(lineLocation);
breakpRequest.putProperty("number", property);
breakpRequest.addThreadFilter(thread2);
breakpRequest.setSuspendPolicy( EventRequest.SUSPEND_EVENT_THREAD);
} catch ( Exception e1 ) {
log3("ERROR: inner Exception within settingBreakpoint() : " + e1);
breakpRequest = null;
}
}
} catch ( Exception e2 ) {
log3("ERROR: ATTENTION: outer Exception within settingBreakpoint() : " + e2);
breakpRequest = null;
}
if (breakpRequest == null)
log2(" A BREAKPOINT HAS NOT BEEN SET UP");
else
log2(" a breakpoint has been set up");
return breakpRequest;
}
/*
* private int breakpoint ()
*
* It removes events from EventQueue until gets first BreakpointEvent.
* To get next EventSet value, it uses the method
* EventQueue.remove(int timeout)
* The timeout argument passed to the method, is "waitTime*1000" adjusted to
* test.timeout.factor system property.
* Note: the value of waitTime is set up with
* the method ArgumentHandler.getWaitTime() at the beginning of the test.
*
* Return codes:
* = returnCode0 - success;
* = returnCode2 - Exception when "eventSet = eventQueue.remove()" is executed
* = returnCode3 - default case when loop of processing an event, that is,
* an unspecified event was taken from the EventQueue
*/
private int breakpoint () {
int returnCode = returnCode0;
log2(" waiting for BreakpointEvent");
labelBP:
for (;;) {
log2(" new: eventSet = eventQueue.remove();");
try {
eventSet = eventQueue.remove(Utils.adjustTimeout(waitTime*1000));
if (eventSet == null) {
log2(":::::: timeout when waiting for a BreakpintEvent");
// log3("ERROR: timeout for waiting for a BreakpintEvent");
returnCode = returnCode3;
break labelBP;
}
} catch ( Exception e ) {
log3("ERROR: Exception for eventSet = eventQueue.remove(); : " + e);
returnCode = 1;
break labelBP;
}
if (eventSet != null) {
log2(" : eventSet != null; size == " + eventSet.size());
EventIterator eIter = eventSet.eventIterator();
Event ev = null;
for (; eIter.hasNext(); ) {
if (returnCode != returnCode0)
break;
ev = eIter.nextEvent();
ll: for (int ifor =0; ; ifor++) {
try {
switch (ifor) {
case 0: AccessWatchpointEvent awe = (AccessWatchpointEvent) ev;
log2(" AccessWatchpointEvent removed");
break ll;
case 1: BreakpointEvent be = (BreakpointEvent) ev;
log2(" BreakpointEvent removed");
break labelBP;
case 2: ClassPrepareEvent cpe = (ClassPrepareEvent) ev;
log2(" ClassPreparEvent removed");
break ll;
case 3: ClassUnloadEvent cue = (ClassUnloadEvent) ev;
log2(" ClassUnloadEvent removed");
break ll;
case 4: ExceptionEvent ee = (ExceptionEvent) ev;
log2(" ExceptionEvent removed");
break ll;
case 5: MethodEntryEvent mene = (MethodEntryEvent) ev;
log2(" MethodEntryEvent removed");
break ll;
case 6: MethodExitEvent mexe = (MethodExitEvent) ev;
log2(" MethodExiEvent removed");
break ll;
case 7: ModificationWatchpointEvent mwe = (ModificationWatchpointEvent) ev;
log2(" ModificationWatchpointEvent removed");
break ll;
case 8: StepEvent se = (StepEvent) ev;
log2(" StepEvent removed");
break ll;
case 9: ThreadDeathEvent tde = (ThreadDeathEvent) ev;
log2(" ThreadDeathEvent removed");
break ll;
case 10: ThreadStartEvent tse = (ThreadStartEvent) ev;
log2(" ThreadStartEvent removed");
break ll;
case 11: VMDeathEvent vmde = (VMDeathEvent) ev;
log2(" VMDeathEvent removed");
break ll;
case 12: VMStartEvent vmse = (VMStartEvent) ev;
log2(" VMStartEvent removed");
break ll;
case 13: WatchpointEvent we = (WatchpointEvent) ev;
log2(" WatchpointEvent removed");
break ll;
default: log3("ERROR: default case for casting event");
returnCode = returnCode3;
break ll;
} // switch
} catch ( ClassCastException e ) {
} // try
} // ll: for (int ifor =0; ; ifor++)
} // for (; ev.hasNext(); )
}
}
if (returnCode == returnCode0)
log2(" : eventSet == null: EventQueue is empty");
return returnCode;
}
}
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