open-autonomous-connection/luaj
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 2 Wiki Activity

debug support refactoring

Browse Source
This commit is contained in:
Shu Lei
2007-10-17 00:56:08 +00:00
parent 70442348a1
commit a8422a6908
9 changed files with 510 additions and 368 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
.classpath
View File

@@ -6,5 +6,6 @@
<classpathentry kind="src" path="src/test/res"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/3.8.1"/>
<classpathentry combineaccessrules="false" kind="src" path="/wtk22"/>
<classpathentry kind="output" path="bin"/>
</classpath>

5
build.xml
View File

@@ -13,8 +13,9 @@
<target name="compile">
<mkdir dir="build/classes"/>
<javac destdir="build/classes" encoding="utf-8" source="1.3" target="1.1">
<src path="src/main/java"/>
<src path="src/addon/java"/>
<src path="src/main/java" />
<src path="src/addon/java" />
<exclude name="lua/debug/j2me/**"/>
</javac>
</target>

84
src/main/java/lua/debug/DebugStackState.java
View File

@@ -21,7 +21,10 @@
******************************************************************************/
package lua.debug;
import java.io.IOException;
import java.util.Hashtable;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;
import lua.CallInfo;
@@ -30,7 +33,7 @@ import lua.StackState;
import lua.addon.compile.LexState;
import lua.debug.event.DebugEvent;
import lua.debug.event.DebugEventBreakpoint;
import lua.debug.event.DebugEventListener;
import lua.debug.event.DebugEventType;
import lua.debug.request.DebugRequest;
import lua.debug.request.DebugRequestLineBreakpointToggle;
import lua.debug.request.DebugRequestListener;
@@ -40,6 +43,7 @@ import lua.debug.response.DebugResponse;
import lua.debug.response.DebugResponseCallgraph;
import lua.debug.response.DebugResponseSimple;
import lua.debug.response.DebugResponseStack;
import lua.io.Closure;
import lua.io.LocVars;
import lua.io.Proto;
import lua.value.LTable;
@@ -54,9 +58,18 @@ public class DebugStackState extends StackState implements DebugRequestListener
protected boolean suspended = false;
protected boolean stepping = false;
protected int lastline = -1;
protected Vector debugEventListeners = new Vector();
protected DebugSupport debugSupport = null;
public DebugStackState() {
public DebugStackState() {}
public void setDebugSupport(DebugSupport debugSupport) throws IOException {
if (debugSupport == null) {
throw new IllegalArgumentException("DebugSupport cannot be null");
}
this.debugSupport = debugSupport;
debugSupport.setDebugStackState(this);
debugSupport.start();
}
protected void debugAssert(boolean b) {
@@ -64,25 +77,6 @@ public class DebugStackState extends StackState implements DebugRequestListener
error( "assert failure" );
}
public void addDebugEventListener(DebugEventListener listener) {
if (!debugEventListeners.contains(listener)) {
debugEventListeners.addElement(listener);
}
}
public void removeDebugEventListener(DebugEventListener listener) {
if (debugEventListeners.contains(listener)) {
debugEventListeners.removeElement(listener);
}
}
protected void notifyDebugEventListeners(DebugEvent event) {
for (int i = 0; debugEventListeners != null && i < debugEventListeners.size(); i++) {
DebugEventListener listener = (DebugEventListener)debugEventListeners.elementAt(i);
listener.notifyDebugEvent(event);
}
}
private String getFileLine(int cindex) {
String func = "?";
String line = "?";
@@ -157,10 +151,12 @@ public class DebugStackState extends StackState implements DebugRequestListener
Proto p = calls[cc].closure.p;
String source = DebugUtils.getSourceFileName(p.source);
if ( breakpoints.containsKey(constructBreakpointKey(source, line))){
if(DebugUtils.IS_DEBUG)
if(DebugUtils.IS_DEBUG) {
DebugUtils.println("hitting breakpoint " + constructBreakpointKey(source, line));
notifyDebugEventListeners(
new DebugEventBreakpoint(source, line));
}
if (debugSupport != null) {
debugSupport.notifyDebugEvent(new DebugEventBreakpoint(source, line));
}
suspended = true;
} else {
return;
@@ -195,16 +191,28 @@ public class DebugStackState extends StackState implements DebugRequestListener
// ------------------ commands coming from the debugger -------------------
public DebugResponse handleRequest(DebugRequest request) {
if (this.debugSupport == null) {
throw new IllegalStateException("DebugStackState is not equiped with DebugSupport.");
}
DebugUtils.println("DebugStackState is handling request: " + request.toString());
DebugRequestType requestType = request.getType();
if (DebugRequestType.suspend == requestType) {
if (DebugRequestType.start == requestType) {
DebugEvent event = new DebugEvent(DebugEventType.started);
debugSupport.notifyDebugEvent(event);
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.exit == requestType) {
stop();
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.suspend == requestType) {
suspend();
DebugEvent event = new DebugEvent(DebugEventType.suspendedByClient);
debugSupport.notifyDebugEvent(event);
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.resume == requestType) {
resume();
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.exit == requestType) {
exit();
DebugEvent event = new DebugEvent(DebugEventType.resumedByClient);
debugSupport.notifyDebugEvent(event);
return DebugResponseSimple.SUCCESS;
} else if (DebugRequestType.lineBreakpointSet == requestType) {
DebugRequestLineBreakpointToggle setBreakpointRequest
@@ -253,6 +261,24 @@ public class DebugStackState extends StackState implements DebugRequestListener
}
}
public void stop() {
if (this.debugSupport == null) {
throw new IllegalStateException("DebugStackState is not equiped with DebugSupport.");
}
DebugEvent event = new DebugEvent(DebugEventType.terminated);
debugSupport.notifyDebugEvent(event);
new Timer().schedule(new TimerTask() {
public void run () {
debugSupport.stop();
debugSupport = null;
}
}, 300);
exit();
}
/**
* terminate the execution
*/

198
src/main/java/lua/debug/DebugSupport.java Normal file
View File

@@ -0,0 +1,198 @@
package lua.debug;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.IOException;
import lua.debug.event.DebugEvent;
import lua.debug.event.DebugEventListener;
import lua.debug.request.DebugRequest;
import lua.debug.request.DebugRequestListener;
import lua.debug.response.DebugResponse;
public class DebugSupport implements DebugRequestListener, DebugEventListener {
protected static final int UNKNOWN = 0;
protected static final int RUNNING = 1;
protected static final int STOPPED = 2;
protected DebugStackState vm;
protected int requestPort;
protected int eventPort;
protected Thread requestWatcherThread;
protected int state = UNKNOWN;
protected DataInputStream requestReader;
protected DataOutputStream requestWriter;
protected DataOutputStream eventWriter;
public DebugSupport(int requestPort,
int eventPort) {
if (requestPort == -1) {
throw new IllegalArgumentException("requestPort is invalid");
}
if (eventPort == -1) {
throw new IllegalArgumentException("eventPort is invalid");
}
this.requestPort = requestPort;
this.eventPort = eventPort;
}
public void setDebugStackState(DebugStackState vm) {
this.vm = vm;
}
protected void releaseServer() {
DebugUtils.println("shutting down the debug server...");
if (requestReader != null) {
try {
requestReader.close();
} catch (IOException e) {}
}
if (requestWriter != null) {
try {
requestWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (eventWriter != null) {
try {
eventWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public synchronized boolean isStarted() {
return (state == RUNNING || state == STOPPED);
}
/* (non-Javadoc)
* @see lua.debug.j2se.DebugSupport#start()
*/
public synchronized void start() throws IOException {
if (this.vm == null) {
throw new IllegalStateException("DebugStackState is not set. Please call setDebugStackState first.");
}
this.requestWatcherThread = new Thread(new Runnable() {
public void run() {
if (getState() != STOPPED) {
handleRequest();
} else {
releaseServer();
}
}
});
this.requestWatcherThread.start();
this.state = RUNNING;
System.out.println("LuaJ debug server is started on ports: " + requestPort + ", " + eventPort);
}
protected synchronized int getState() {
return this.state;
}
/* (non-Javadoc)
* @see lua.debug.j2se.DebugSupport#stop()
*/
public synchronized void stop() {
DebugUtils.println("stopping the debug support...");
this.state = STOPPED;
}
protected void handleRequest() {
try {
while (getState() != STOPPED) {
int size = requestReader.readInt();
byte[] data = new byte[size];
requestReader.readFully(data);
DebugRequest request
= (DebugRequest) SerializationHelper.deserialize(data);
DebugUtils.println("SERVER receives request: " + request.toString());
DebugResponse response = handleRequest(request);
data = SerializationHelper.serialize(response);
requestWriter.writeInt(data.length);
requestWriter.write(data);
requestWriter.flush();
DebugUtils.println("SERVER sends response: " + response);
}
if (getState() == STOPPED) {
cleanup();
}
} catch (EOFException e) {
cleanup();
} catch (IOException e) {
e.printStackTrace();
}
}
private void cleanup() {
DebugUtils.println("SERVER terminated...");
releaseServer();
System.exit(0);
}
/**
* This method provides the second communication channel with the debugging
* client. The server can send events via this channel to notify the client
* about debug events (see below) asynchronously.
*
* The following events can be fired:
* 1. started -- the vm is started and ready to receive debugging requests
* (guaranteed to be the first event sent)
* 2. terminated -- the vm is terminated (guaranteed to be the last event sent)
* 3. suspended client|step|breakpoint N
* -- the vm is suspended by client, due to a stepping request or
* the breakpoint at line N is hit
* 4. resumed client|step
* -- the vm resumes execution by client or step
*
* @param event
*/
protected void sendEvent(DebugEvent event) {
DebugUtils.println("SERVER sending event: " + event.toString());
try {
byte[] data = SerializationHelper.serialize(event);
eventWriter.writeInt(data.length);
eventWriter.write(data);
eventWriter.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
/* (non-Javadoc)
* @see lua.debug.DebugEventListener#notifyDebugEvent(lua.debug.DebugEvent)
*/
/* (non-Javadoc)
* @see lua.debug.j2se.DebugSupport#notifyDebugEvent(lua.debug.event.DebugEvent)
*/
public void notifyDebugEvent(DebugEvent event) {
sendEvent(event);
}
/* (non-Javadoc)
* @see lua.debug.DebugRequestListener#handleRequest(java.lang.String)
*/
/* (non-Javadoc)
* @see lua.debug.j2se.DebugSupport#handleRequest(lua.debug.request.DebugRequest)
*/
public DebugResponse handleRequest(DebugRequest request) {
if (DebugUtils.IS_DEBUG) {
DebugUtils.println("handling request: " + request.toString());
}
DebugResponse response = vm.handleRequest(request);
return response;
}
}

98
src/main/java/lua/debug/j2me/DebugSupportImpl.java Normal file
View File

@@ -0,0 +1,98 @@
package lua.debug.j2me;
import java.io.IOException;
import javax.microedition.io.Connector;
import javax.microedition.io.ServerSocketConnection;
import javax.microedition.io.SocketConnection;
import lua.debug.DebugSupport;
import lua.debug.DebugUtils;
import lua.debug.event.DebugEvent;
public class DebugSupportImpl extends DebugSupport {
protected ServerSocketConnection requestServerConnection;
protected SocketConnection requestSocketConnection;
protected ServerSocketConnection eventServerConnection;
protected SocketConnection eventSocketConnection;
public DebugSupportImpl(int requestPort,
int eventPort) {
super(requestPort, eventPort);
}
/* (non-Javadoc)
* @see lua.debug.j2se.DebugSupport#start()
*/
public synchronized void start() throws IOException {
System.out.println("Starting the sockets....");
// Set up the request socket and request input + output streams
this.requestServerConnection
= (ServerSocketConnection)Connector.open("socket://:" + this.requestPort);
this.requestSocketConnection =
(SocketConnection) requestServerConnection.acceptAndOpen();
requestSocketConnection.setSocketOption(SocketConnection.DELAY, 0);
requestSocketConnection.setSocketOption(SocketConnection.LINGER, 0);
requestSocketConnection.setSocketOption(SocketConnection.KEEPALIVE, 1);
requestSocketConnection.setSocketOption(SocketConnection.RCVBUF, 1024);
requestSocketConnection.setSocketOption(SocketConnection.SNDBUF, 1024);
this.requestReader = requestSocketConnection.openDataInputStream();
this.requestWriter = requestSocketConnection.openDataOutputStream();
// Set up the event socket and event output stream
this.eventServerConnection
= (ServerSocketConnection)Connector.open("socket://:" + this.eventPort);
this.eventSocketConnection
= (SocketConnection) eventServerConnection.acceptAndOpen();
eventSocketConnection.setSocketOption(SocketConnection.DELAY, 0);
eventSocketConnection.setSocketOption(SocketConnection.LINGER, 0);
eventSocketConnection.setSocketOption(SocketConnection.KEEPALIVE, 1);
eventSocketConnection.setSocketOption(SocketConnection.RCVBUF, 1024);
eventSocketConnection.setSocketOption(SocketConnection.SNDBUF, 1024);
this.eventWriter = eventSocketConnection.openDataOutputStream();;
System.out.println("Lua debug server is started on ports: " + requestPort + ", " + eventPort);
super.start();
}
protected void releaseServer() {
super.releaseServer();
if (requestSocketConnection != null) {
try {
requestSocketConnection.close();
} catch (IOException e) {}
}
if (requestServerConnection != null) {
try {
requestServerConnection.close();
} catch (IOException e) {}
}
if (eventSocketConnection != null) {
try {
eventSocketConnection.close();
} catch (IOException e) {}
}
if (eventServerConnection != null){
try {
eventServerConnection.close();
} catch (IOException e) {}
}
}
protected void handleRequest() {
synchronized (requestSocketConnection) {
super.handleRequest();
}
}
protected void sendEvent(DebugEvent event) {
synchronized (eventSocketConnection) {
super.sendEvent(event);
}
}
}

238
src/main/java/lua/debug/j2se/DebugSupport.java
View File

@@ -1,238 +0,0 @@
/*******************************************************************************
* Copyright (c) 2007 LuaJ. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package lua.debug.j2se;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import lua.debug.DebugUtils;
import lua.debug.SerializationHelper;
import lua.debug.event.DebugEvent;
import lua.debug.event.DebugEventListener;
import lua.debug.request.DebugRequest;
import lua.debug.request.DebugRequestListener;
import lua.debug.response.DebugResponse;
public class DebugSupport implements DebugRequestListener, DebugEventListener {
protected static final int UNKNOWN = 0;
protected static final int RUNNING = 1;
protected static final int STOPPED = 2;
protected DebugRequestListener vm;
protected int requestPort;
protected int eventPort;
protected Thread requestWatcherThread;
protected int state = UNKNOWN;
protected ServerSocket requestSocket;
protected Socket clientRequestSocket;
protected DataInputStream requestReader;
protected DataOutputStream requestWriter;
protected ServerSocket eventSocket;
protected Socket clientEventSocket;
protected DataOutputStream eventWriter;
public DebugSupport(DebugRequestListener vm,
int requestPort,
int eventPort) {
this.vm = vm;
this.requestPort = requestPort;
this.eventPort = eventPort;
}
protected void releaseServer() {
DebugUtils.println("shutting down the debug server...");
if (requestReader != null) {
try {
requestReader.close();
} catch (IOException e) {}
}
if (requestWriter != null) {
try {
requestWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (clientRequestSocket != null) {
try {
clientRequestSocket.close();
} catch (IOException e) {}
}
if (requestSocket != null) {
try {
requestSocket.close();
} catch (IOException e) {}
}
if (eventWriter != null) {
try {
eventWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (clientEventSocket != null) {
try {
clientEventSocket.close();
} catch (IOException e) {}
}
if (eventSocket != null){
try {
eventSocket.close();
} catch (IOException e) {}
}
}
public synchronized void start() throws IOException {
this.requestSocket = new ServerSocket(requestPort);
this.clientRequestSocket = requestSocket.accept();
this.requestReader
= new DataInputStream(clientRequestSocket.getInputStream());
this.requestWriter
= new DataOutputStream(clientRequestSocket.getOutputStream());
this.eventSocket = new ServerSocket(eventPort);
this.clientEventSocket = eventSocket.accept();
this.eventWriter
= new DataOutputStream(clientEventSocket.getOutputStream());
this.requestWatcherThread = new Thread(new Runnable() {
public void run() {
if (getState() != STOPPED) {
handleRequest();
} else {
releaseServer();
}
}
});
this.requestWatcherThread.start();
this.state = RUNNING;
}
protected synchronized int getState() {
return this.state;
}
public synchronized void stop() {
this.state = STOPPED;
}
protected void handleRequest() {
synchronized (clientRequestSocket) {
try {
while (getState() != STOPPED) {
int size = requestReader.readInt();
byte[] data = new byte[size];
requestReader.readFully(data);
DebugRequest request
= (DebugRequest) SerializationHelper.deserialize(data);
DebugUtils.println("SERVER receives request: " + request.toString());
DebugResponse response = handleRequest(request);
data = SerializationHelper.serialize(response);
requestWriter.writeInt(data.length);
requestWriter.write(data);
requestWriter.flush();
DebugUtils.println("SERVER sends response: " + response);
}
if (getState() == STOPPED) {
cleanup();
}
} catch (EOFException e) {
cleanup();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
*
*/
private void cleanup() {
DebugUtils.println("SERVER terminated...");
releaseServer();
System.exit(0);
}
/**
* This method provides the second communication channel with the debugging
* client. The server can send events via this channel to notify the client
* about debug events (see below) asynchonously.
*
* The following events can be fired:
* 1. started -- the vm is started and ready to receive debugging requests
* (guaranteed to be the first event sent)
* 2. terminated -- the vm is terminated (guaranteed to be the last event sent)
* 3. suspended client|step|breakpoint N
* -- the vm is suspended by client, due to a stepping request or
* the breakpoint at line N is hit
* 4. resumed client|step
* -- the vm resumes execution by client or step
*
* @param event
*/
protected void sendEvent(DebugEvent event) {
DebugUtils.println("SERVER sending event: " + event.toString());
synchronized (eventSocket) {
try {
byte[] data = SerializationHelper.serialize(event);
eventWriter.writeInt(data.length);
eventWriter.write(data);
eventWriter.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/* (non-Javadoc)
* @see lua.debug.DebugEventListener#notifyDebugEvent(lua.debug.DebugEvent)
*/
public void notifyDebugEvent(DebugEvent event) {
sendEvent(event);
}
/* (non-Javadoc)
* @see lua.debug.DebugRequestListener#handleRequest(java.lang.String)
*/
public DebugResponse handleRequest(DebugRequest request) {
if (DebugUtils.IS_DEBUG) {
DebugUtils.println("handling request: " + request.toString());
}
DebugResponse response = vm.handleRequest(request);
return response;
}
}

120
src/main/java/lua/debug/j2se/DebugSupportImpl.java Normal file
View File

@@ -0,0 +1,120 @@
/*******************************************************************************
* Copyright (c) 2007 LuaJ. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package lua.debug.j2se;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import lua.debug.DebugSupport;
import lua.debug.DebugUtils;
import lua.debug.event.DebugEvent;
public class DebugSupportImpl extends DebugSupport {
protected ServerSocket requestSocket;
protected Socket clientRequestSocket;
protected ServerSocket eventSocket;
protected Socket clientEventSocket;
public DebugSupportImpl(int requestPort, int eventPort) {
super(requestPort, eventPort);
}
/* (non-Javadoc)
* @see lua.debug.j2se.DebugSupport#start()
*/
public synchronized void start() throws IOException {
this.requestSocket = new ServerSocket(requestPort);
this.clientRequestSocket = requestSocket.accept();
this.requestReader
= new DataInputStream(clientRequestSocket.getInputStream());
this.requestWriter
= new DataOutputStream(clientRequestSocket.getOutputStream());
this.eventSocket = new ServerSocket(eventPort);
this.clientEventSocket = eventSocket.accept();
this.eventWriter
= new DataOutputStream(clientEventSocket.getOutputStream());
super.start();
}
protected void releaseServer() {
super.releaseServer();
if (clientRequestSocket != null) {
try {
clientRequestSocket.close();
} catch (IOException e) {}
}
if (requestSocket != null) {
try {
requestSocket.close();
} catch (IOException e) {}
}
if (clientEventSocket != null) {
try {
clientEventSocket.close();
} catch (IOException e) {}
}
if (eventSocket != null){
try {
eventSocket.close();
} catch (IOException e) {}
}
}
protected void handleRequest() {
synchronized (clientRequestSocket) {
super.handleRequest();
}
}
/**
* This method provides the second communication channel with the debugging
* client. The server can send events via this channel to notify the client
* about debug events (see below) asynchronously.
*
* The following events can be fired:
* 1. started -- the vm is started and ready to receive debugging requests
* (guaranteed to be the first event sent)
* 2. terminated -- the vm is terminated (guaranteed to be the last event sent)
* 3. suspended client|step|breakpoint N
* -- the vm is suspended by client, due to a stepping request or
* the breakpoint at line N is hit
* 4. resumed client|step
* -- the vm resumes execution by client or step
*
* @param event
*/
protected void sendEvent(DebugEvent event) {
synchronized (eventSocket) {
super.sendEvent(event);
}
}
}

120
src/main/java/lua/debug/j2se/StandardLuaJVM.java
View File

@@ -25,24 +25,14 @@ import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.Timer;
import java.util.TimerTask;
import lua.GlobalState;
import lua.StackState;
import lua.addon.luacompat.LuaCompat;
import lua.addon.luajava.LuaJava;
import lua.debug.DebugStackState;
import lua.debug.DebugSupport;
import lua.debug.DebugUtils;
import lua.debug.event.DebugEvent;
import lua.debug.event.DebugEventType;
import lua.debug.request.DebugRequest;
import lua.debug.request.DebugRequestListener;
import lua.debug.request.DebugRequestType;
import lua.debug.response.DebugResponse;
import lua.debug.response.DebugResponseSimple;
import lua.io.Closure;
import lua.io.LoadState;
import lua.io.Proto;
@@ -55,9 +45,8 @@ import lua.value.LValue;
* @author: Shu Lei
* @version: 1.0
*/
public class StandardLuaJVM implements DebugRequestListener {
public class StandardLuaJVM {
protected boolean isDebugMode = false;
protected DebugSupport debugSupport;
protected int requestPort;
protected int eventPort;
protected String script;
@@ -125,19 +114,15 @@ public class StandardLuaJVM implements DebugRequestListener {
throw new ParseException("script is missing.");
}
try {
this.script = URLDecoder.decode(args[0], "UTF-8");
DebugUtils.println("Lua script to run: " + this.script);
int scriptArgsLength = args.length - 1;
if (scriptArgsLength > 0) {
this.scriptArgs = new String[scriptArgsLength];
for (int i = 1; i < args.length; i++) {
this.scriptArgs[i - 1] = URLDecoder.decode(args[i], "UTF-8");
}
}
} catch (UnsupportedEncodingException e) {
throw new ParseException("Malformed program argument strings: " + e.getMessage());
}
this.script = args[0];
DebugUtils.println("Lua script to run: " + this.script);
int scriptArgsLength = args.length - 1;
if (scriptArgsLength > 0) {
this.scriptArgs = new String[scriptArgsLength];
for (int i = 1; i < args.length; i++) {
this.scriptArgs[i - 1] = args[i];
}
}
}
// end of command line parsing utilities
@@ -184,7 +169,7 @@ public class StandardLuaJVM implements DebugRequestListener {
LuaCompat.install();
}
public void doRun() throws IOException {
protected void doRun() throws IOException {
init();
// new lua state
@@ -208,10 +193,13 @@ public class StandardLuaJVM implements DebugRequestListener {
state.doCall(c, vargs);
}
private void doDebug() throws IOException {
protected void doDebug() throws IOException {
DebugUtils.println("setting up LuaJava and debug stack state...");
init();
// new lua debug state
state = new DebugStackState();
// load the Lua file
DebugUtils.println("loading Lua script '" + getScript() + "'");
InputStream is = new FileInputStream(new File(getScript()));
@@ -219,81 +207,27 @@ public class StandardLuaJVM implements DebugRequestListener {
// set up debug support if the file is successfully loaded
DebugUtils.println("start debugging...");
this.debugSupport = new DebugSupport(this, getRequestPort(), getEventPort());
DebugUtils.println("created client request socket connection...");
debugSupport.start();
// new lua debug state
state = new DebugStackState();
getDebugState().addDebugEventListener(debugSupport);
DebugSupport debugSupport
= new DebugSupportImpl(getRequestPort(), getEventPort());
getDebugState().setDebugSupport(debugSupport);
getDebugState().suspend();
// create closure and execute
final Closure c = new Closure(state, p);
new Thread(new Runnable() {
public void run() {
String[] args = getScriptArgs();
int numOfScriptArgs = (args != null ? args.length : 0);
LValue[] vargs = new LValue[numOfScriptArgs];
for (int i = 0; i < numOfScriptArgs; i++) {
vargs[i] = new LString(args[i]);
}
getDebugState().doCall(c, vargs);
stop();
}
}).start();
debugSupport.notifyDebugEvent(new DebugEvent(DebugEventType.started));
String[] args = getScriptArgs();
int numOfScriptArgs = (args != null ? args.length : 0);
LValue[] vargs = new LValue[numOfScriptArgs];
for (int i = 0; i < numOfScriptArgs; i++) {
vargs[i] = new LString(args[i]);
}
getDebugState().doCall(c, vargs);
getDebugState().stop();
}
private DebugStackState getDebugState() {
return (DebugStackState)state;
}
/* (non-Javadoc)
* @see lua.debug.DebugRequestListener#handleRequest(java.lang.String)
*/
public DebugResponse handleRequest(DebugRequest request) {
if (!isDebug()) {
throw new UnsupportedOperationException("Must be in debug mode to handle the debug requests");
}
DebugRequestType requestType = request.getType();
if (DebugRequestType.suspend == requestType) {
DebugResponse status = getDebugState().handleRequest(request);
DebugEvent event = new DebugEvent(DebugEventType.suspendedByClient);
debugSupport.notifyDebugEvent(event);
return status;
} else if (DebugRequestType.resume == requestType) {
DebugResponse status = getDebugState().handleRequest(request);
DebugEvent event = new DebugEvent(DebugEventType.resumedByClient);
debugSupport.notifyDebugEvent(event);
return status;
} else if (DebugRequestType.exit == requestType) {
stop();
return DebugResponseSimple.SUCCESS;
} else {
return getDebugState().handleRequest(request);
}
}
protected void stop() {
if (this.debugSupport != null) {
DebugEvent event = new DebugEvent(DebugEventType.terminated);
debugSupport.notifyDebugEvent(event);
Timer timer = new Timer("DebugServerDeathThread");
timer.schedule(new TimerTask() {
public void run() {
debugSupport.stop();
debugSupport = null;
}
}, 300);
}
getDebugState().exit();
}
/**
* Parses the command line arguments and executes/debugs the lua program.
* @param args -- command line arguments:

4
src/main/java/lua/debug/request/DebugRequestType.java
View File

@@ -38,6 +38,7 @@ public class DebugRequestType extends EnumType {
public static final DebugRequestType callgraph = new DebugRequestType("callgraph", 7);
public static final DebugRequestType stack = new DebugRequestType("stack", 8);
public static final DebugRequestType step = new DebugRequestType("step", 9);
public static final DebugRequestType start = new DebugRequestType("start", 10);
protected static final DebugRequestType[] ENUMS = new DebugRequestType[] {
suspend,
@@ -49,7 +50,8 @@ public class DebugRequestType extends EnumType {
watchpointClear,
callgraph,
stack,
step
step,
start
};
public DebugRequestType(String name, int ordinal) {