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/*
* Copyright (c) 2000, 2015, 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
* @bug 4334008
* @summary RepStep detects missed step events due to lack of
* frame pop events (in back-end).
* @author Robert Field
*
* @run compile -g RepStepTarg.java
* @run build VMConnection RepStep
*
* @run driver RepStep
*/
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;
import com.sun.jdi.connect.*;
import java.util.*;
public class RepStep {
static final String TARGET = "RepStepTarg";
static final int GRANULARITY = StepRequest.STEP_LINE;
static final int DEPTH = StepRequest.STEP_INTO;
static final int SUCCESS_COUNT = 30;
VirtualMachine vm;
final EventRequestManager requestManager;
int stepNum = 0;
boolean passed = false;
public static void main(String args[]) throws Exception {
new RepStep(args);
}
RepStep(String args[]) throws Exception {
if (args.length > 0) {
attachTarget(args[0]);
} else {
launchTarget();
}
// vm.setDebugTraceMode(VirtualMachine.TRACE_ALL);
requestManager = vm.eventRequestManager();
runTests();
dieNice();
}
private void createStep(ThreadReference thread) {
final StepRequest sr =
requestManager.createStepRequest(thread,
GRANULARITY,
DEPTH);
sr.addClassExclusionFilter("java.*");
sr.addClassExclusionFilter("javax.*");
sr.addClassExclusionFilter("sun.*");
sr.addClassExclusionFilter("com.sun.*");
sr.addClassExclusionFilter("com.oracle.*");
sr.addClassExclusionFilter("oracle.*");
sr.addClassExclusionFilter("jdk.internal.*");
sr.enable();
}
private void runTests() throws Exception {
ThreadReference thread = null;
EventQueue queue = vm.eventQueue();
while (true) {
EventSet set = queue.remove();
for (EventIterator it = set.eventIterator(); it.hasNext(); ) {
Event event = it.nextEvent();
if (event instanceof VMStartEvent) {
// get thread for setting step later
thread = ((VMStartEvent)event).thread();
ClassPrepareRequest cpReq
= requestManager.createClassPrepareRequest();
cpReq.addClassFilter(TARGET);
cpReq.enable();
} else if (event instanceof ClassPrepareEvent) {
createStep(thread);
event.request().disable();
} else if (event instanceof StepEvent) {
// StepEvent stepEvent = (StepEvent)event;
// System.out.println(stepEvent);
System.out.println(++stepNum);
if (stepNum >= SUCCESS_COUNT) {
// would have failed by now (> 4)
System.out.println("RepStep passed");
event.request().disable();
set.resume();
return; // Success exit
}
} else if (event instanceof VMDeathEvent) {
throw new Exception("RepStep failed: steps missed");
} else {
throw new Exception("Unexpected event: " + event);
}
}
set.resume();
}
}
private void dieNice() throws Exception {
EventQueue queue = vm.eventQueue();
while (true) {
EventSet set = queue.remove();
for (EventIterator it = set.eventIterator(); it.hasNext(); ) {
Event event = it.nextEvent();
if (event instanceof VMDeathEvent) {
// ignore
} else if (event instanceof VMDisconnectEvent) {
set.resume();
return; // Success exit
} else {
throw new Exception("Unexpected event: " + event);
}
}
set.resume();
}
}
private Connector findConnector(String name) throws Exception {
List connectors = Bootstrap.virtualMachineManager().allConnectors();
Iterator iter = connectors.iterator();
while (iter.hasNext()) {
Connector connector = (Connector)iter.next();
if (connector.name().equals(name)) {
return connector;
}
}
throw new Exception("No connector: " + name);
}
/* launch child target vm */
private void launchTarget() throws Exception {
LaunchingConnector launcher =
(LaunchingConnector)findConnector("com.sun.jdi.CommandLineLaunch");
Map connectorArgs = launcher.defaultArguments();
Connector.Argument mainArg =
(Connector.Argument)connectorArgs.get("main");
mainArg.setValue(TARGET);
Connector.Argument optionsArg =
(Connector.Argument)connectorArgs.get("options");
optionsArg.setValue(VMConnection.getDebuggeeVMOptions());
vm = launcher.launch(connectorArgs);
System.out.println("launched: " + TARGET);
}
private void attachTarget(String portNum) throws Exception {
AttachingConnector conn =
(AttachingConnector)findConnector("com.sun.jdi.SocketAttach");
Map connectorArgs = conn.defaultArguments();
Connector.Argument portArg =
(Connector.Argument)connectorArgs.get("port");
portArg.setValue(portNum);
vm = conn.attach(connectorArgs);
System.out.println("attached to: " + portNum);
}
}
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