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/*******************************************************************************
* Copyright (c) 2000, 2004 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.mi.core.cdi;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.cdt.debug.core.cdi.CDIException;
import org.eclipse.cdt.debug.core.cdi.ICDISignalManager;
import org.eclipse.cdt.debug.core.cdi.model.ICDISignal;
import org.eclipse.cdt.debug.mi.core.MIException;
import org.eclipse.cdt.debug.mi.core.MISession;
import org.eclipse.cdt.debug.mi.core.cdi.model.Signal;
import org.eclipse.cdt.debug.mi.core.command.CommandFactory;
import org.eclipse.cdt.debug.mi.core.command.MIHandle;
import org.eclipse.cdt.debug.mi.core.command.MIInfoSignals;
import org.eclipse.cdt.debug.mi.core.event.MIEvent;
import org.eclipse.cdt.debug.mi.core.event.MISignalChangedEvent;
import org.eclipse.cdt.debug.mi.core.output.MIInfoSignalsInfo;
import org.eclipse.cdt.debug.mi.core.output.MISigHandle;
/**
*/
public class SignalManager extends Manager implements ICDISignalManager {
MISigHandle[] noSigs = new MISigHandle[0];
List signalsList = null;
public SignalManager(Session session) {
super(session, false);
}
MISigHandle[] getMISignals() throws CDIException {
MISigHandle[] miSigs = noSigs;
Session session = (Session)getSession();
MISession mi = session.getMISession();
CommandFactory factory = mi.getCommandFactory();
MIInfoSignals sigs = factory.createMIInfoSignals();
try {
mi.postCommand(sigs);
MIInfoSignalsInfo info = sigs.getMIInfoSignalsInfo();
if (info == null) {
throw new CDIException(CdiResources.getString("cdi.Common.No_answer")); //$NON-NLS-1$
}
miSigs = info.getMISignals();
} catch (MIException e) {
throw new MI2CDIException(e);
}
return miSigs;
}
MISigHandle getMISignal(String name) throws CDIException {
MISigHandle sig = null;
Session session = (Session)getSession();
MISession mi = session.getMISession();
CommandFactory factory = mi.getCommandFactory();
MIInfoSignals sigs = factory.createMIInfoSignals(name);
try {
mi.postCommand(sigs);
MIInfoSignalsInfo info = sigs.getMIInfoSignalsInfo();
if (info == null) {
throw new CDIException(CdiResources.getString("cdi.Common.No_answer")); //$NON-NLS-1$
}
MISigHandle[] miSigs = info.getMISignals();
if (miSigs.length > 0) {
sig = miSigs[0];
}
} catch (MIException e) {
throw new MI2CDIException(e);
}
return sig;
}
/**
* Method hasSignalChanged.
* @param sig
* @param mISignal
* @return boolean
*/
private boolean hasSignalChanged(ICDISignal sig, MISigHandle miSignal) {
return !sig.getName().equals(miSignal.getName()) ||
sig.isStopSet() != miSignal.isStop() ||
sig.isIgnore() != !miSignal.isPass();
}
public ICDISignal findSignal(String name) {
ICDISignal sig = null;
if (signalsList != null) {
ICDISignal[] sigs = (ICDISignal[])signalsList.toArray(new ICDISignal[0]);
for (int i = 0; i < sigs.length; i++) {
if (sigs[i].getName().equals(name)) {
sig = sigs[i];
break;
}
}
}
return sig;
}
public ICDISignal getSignal(String name) {
ICDISignal sig = findSignal(name);
if (sig == null) {
MISigHandle miSig = null;
try {
miSig = getMISignal(name);
sig = new Signal(this, miSig);
if (signalsList != null) {
signalsList.add(sig);
}
} catch (CDIException e) {
// The session maybe terminated because of the signal.
miSig = new MISigHandle(name, false, false, false, name);
sig = new Signal(this, miSig);
}
}
return sig;
}
public void handle(ICDISignal sig, boolean isIgnore, boolean isStop) throws CDIException {
Session session = (Session)getSession();
MISession mi = session.getMISession();
CommandFactory factory = mi.getCommandFactory();
StringBuffer buffer = new StringBuffer(sig.getName());
buffer.append(" "); //$NON-NLS-1$
if (isIgnore) {
buffer.append("ignore"); //$NON-NLS-1$
} else {
buffer.append("noignore"); //$NON-NLS-1$
}
buffer.append(" "); //$NON-NLS-1$
if (isStop) {
buffer.append("stop"); //$NON-NLS-1$
} else {
buffer.append("nostop"); //$NON-NLS-1$
}
MIHandle handle = factory.createMIHandle(buffer.toString());
try {
mi.postCommand(handle);
handle.getMIInfo();
} catch (MIException e) {
throw new MI2CDIException(e);
}
((Signal)sig).getMISignal().handle(isIgnore, isStop);
mi.fireEvent(new MISignalChangedEvent(sig.getName()));
}
/**
* @see org.eclipse.cdt.debug.core.cdi.ICDISignalManager#getSignals()
*/
public ICDISignal[] getSignals() throws CDIException {
if (signalsList == null) {
update();
}
return (ICDISignal[])signalsList.toArray(new ICDISignal[0]);
}
/**
* @see org.eclipse.cdt.debug.core.cdi.ICDISignalManager#update()
*/
public void update() throws CDIException {
Session session = (Session)getSession();
MISigHandle[] miSigs = getMISignals();
List eventList = new ArrayList(miSigs.length);
if (signalsList == null) {
signalsList = Collections.synchronizedList(new ArrayList(5));
}
for (int i = 0; i < miSigs.length; i++) {
ICDISignal sig = findSignal(miSigs[i].getName());
if (sig != null) {
if (hasSignalChanged(sig, miSigs[i])) {
// Fire ChangedEvent
((Signal)sig).setMISignal(miSigs[i]);
eventList.add(new MISignalChangedEvent(miSigs[i].getName()));
}
} else {
// add the new breakpoint and fire CreatedEvent
signalsList.add(new Signal(this, miSigs[i]));
}
}
MISession mi = session.getMISession();
MIEvent[] events = (MIEvent[])eventList.toArray(new MIEvent[0]);
mi.fireEvents(events);
}
}
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