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/*******************************************************************************
* Copyright (c) 2000, 2007 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.mi.core.cdi.model;
import java.math.BigInteger;
import org.eclipse.cdt.debug.core.cdi.CDIException;
import org.eclipse.cdt.debug.core.cdi.ICDICondition;
import org.eclipse.cdt.debug.core.cdi.model.ICDIWatchpoint;
import org.eclipse.cdt.debug.core.cdi.model.ICDIWatchpoint2;
import org.eclipse.cdt.debug.mi.core.output.MIBreakpoint;
/**
*/
public class Watchpoint extends Breakpoint implements ICDIWatchpoint2 {
int watchType;
String expression;
String memorySpace;
BigInteger range;
String derivedExpression;
public Watchpoint(Target target, String expression, int type,
int watchType, ICDICondition condition, boolean enabled) {
this(target, expression, "", BigInteger.ZERO, type, watchType, condition, enabled); //$NON-NLS-1$
}
public Watchpoint(Target target, String expression, String memorySpace,
BigInteger range, int type, int watchType, ICDICondition cond,
boolean enabled) {
super(target, type, cond, enabled);
this.watchType = watchType;
this.expression = expression;
this.memorySpace = memorySpace;
this.range = range;
// If the range and/or memory space are specified, cast the expression, e.g.,
// (@data char[4])(*0x402000)
derivedExpression = ""; //$NON-NLS-1$
boolean doSpecifyMemorySpace = memorySpace.length() > 0;
boolean doSpecifyRange = range.compareTo(BigInteger.ZERO) > 0;
boolean doSpecify = doSpecifyMemorySpace || doSpecifyRange;
if ( doSpecify ) {
derivedExpression += "("; //$NON-NLS-1$
if ( doSpecifyMemorySpace ) {
derivedExpression += "@" + memorySpace; //$NON-NLS-1$
if ( doSpecifyRange ) {
derivedExpression += " "; //$NON-NLS-1$
}
}
if ( doSpecifyRange ) {
derivedExpression += "char[" + range.toString() + "]"; //$NON-NLS-1$ //$NON-NLS-2$
}
derivedExpression += ")("; //$NON-NLS-1$
}
try {
// Check if this an address watchpoint, and add a '*'
Integer.decode(expression);
derivedExpression += '*';
} catch (NumberFormatException e) {
}
derivedExpression += expression;
if ( doSpecify ) {
derivedExpression += ")"; //$NON-NLS-1$
}
}
/**
* @see org.eclipse.cdt.debug.core.cdi.ICDIWatchpoint#getWatchExpression()
*/
@Override
public String getWatchExpression() throws CDIException {
if (expression == null) {
MIBreakpoint[] miPoints = getMIBreakpoints();
if (miPoints != null && miPoints.length > 0) {
return miPoints[0].getWhat();
}
}
return expression;
}
/**
* @see org.eclipse.cdt.debug.core.cdi.ICDIWatchpoint#isReadType()
*/
@Override
public boolean isReadType() {
return ((watchType & ICDIWatchpoint.READ) == ICDIWatchpoint.READ);
// MIBreakpoint miPoint = getMIBreakpoint();
// if (miPoint != null)
// return getMIBreakpoint().isReadWatchpoint() || getMIBreakpoint().isAccessWatchpoint();
// return ((watchType & ICDIWatchpoint.READ) == ICDIWatchpoint.READ);
}
/**
* @see org.eclipse.cdt.debug.core.cdi.ICDIWatchpoint#isWriteType()
*/
@Override
public boolean isWriteType() {
return ((watchType & ICDIWatchpoint.WRITE) == ICDIWatchpoint.WRITE);
// MIBreakpoint miPoint = getMIBreakpoint();
// if (miPoint != null)
// return getMIBreakpoint().isAccessWatchpoint() || getMIBreakpoint().isWriteWatchpoint();
// return ((watchType & ICDIWatchpoint.WRITE) == ICDIWatchpoint.WRITE);
}
@Override
public String getMemorySpace() throws CDIException {
return memorySpace;
}
@Override
public BigInteger getRange() throws CDIException {
return range;
}
public String getDerivedExpression() {
return derivedExpression;
}
}
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