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more fix for 100442

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This commit is contained in:
Alain Magloire 2005-07-29 05:46:25 +00:00
parent a5fdd63e34
commit b2aff9b7c5
4 changed files with 110 additions and 47 deletions
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121
debug/org.eclipse.cdt.debug.mi.core/cdi/org/eclipse/cdt/debug/mi/core/cdi/RegisterManager.java
View file

@ -13,14 +13,16 @@ package org.eclipse.cdt.debug.mi.core.cdi;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Hashtable;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.cdt.debug.core.cdi.CDIException;
import org.eclipse.cdt.debug.core.cdi.model.ICDIRegisterDescriptor;
import org.eclipse.cdt.debug.core.cdi.model.ICDIRegisterGroup;
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.LocalVariable;
import org.eclipse.cdt.debug.mi.core.cdi.model.Register;
import org.eclipse.cdt.debug.mi.core.cdi.model.RegisterDescriptor;
import org.eclipse.cdt.debug.mi.core.cdi.model.RegisterGroup;
@ -49,14 +51,86 @@ import org.eclipse.cdt.debug.mi.core.output.MIVarUpdateInfo;
*/
public class RegisterManager extends Manager {
final int MAX_ENTRIES = 150;
/**
*
* LRUMap.<br>
* Simple LRU cache using a LinkedHashMap
*/
class LRUMap extends LinkedHashMap {
private static final long serialVersionUID = 1L;
LRUMap() {
super(MAX_ENTRIES+1, .75F, true);
}
/* (non-Javadoc)
* @see java.util.LinkedHashMap#removeEldestEntry(java.util.Map.Entry)
*/
protected boolean removeEldestEntry(Entry eldest) {
boolean toRemove = size() > MAX_ENTRIES;
if (toRemove) {
ShadowRegister v = (ShadowRegister)eldest.getValue();
try {
Target target = (Target)v.getTarget();
removeMIVar(target.getMISession(), v.getMIVar());
} catch (Exception e) {
// ignore all
}
v.setMIVar(null);
}
return toRemove;
}
}
/**
*
* ShadowRegister.<br>
* To keep track of the register value we can a shadow variable. If the
* the variable MIVar was destroy by the LRUCache we try to recreate it.
*/
class ShadowRegister extends Register {
public ShadowRegister(Register reg, StackFrame frame, String n, MIVar v) {
super((Target)reg.getTarget(), (Thread)frame.getThread(), frame, n, null, 0, 0, v);
try {
fTypename = reg.getTypeName();
} catch (CDIException e) {
// ignore
}
try {
fType = reg.getType();
} catch (CDIException e) {
// ignore
}
}
/* (non-Javadoc)
* @see org.eclipse.cdt.debug.mi.core.cdi.model.Variable#getMIVar()
*/
public MIVar getMIVar() {
if (fMiVar == null) {
try {
fMiVar = createMiVar((StackFrame)getStackFrame(), getName());
} catch (CDIException e) {
//
}
}
return fMiVar;
}
public void setMIVar(MIVar newMIVar) {
fMiVar = newMIVar;
}
}
Map regsMap;
Map varMap;
Map varsMap;
MIVarChange[] noChanges = new MIVarChange[0];
public RegisterManager(Session session) {
super(session, true);
regsMap = new Hashtable();
varMap = new Hashtable();
varsMap = new Hashtable();
// The register bookkeeping provides better update control.
setAutoUpdate( true );
}
@ -70,13 +144,13 @@ public class RegisterManager extends Manager {
return regsList;
}
synchronized List getVariableList(Target target) {
List varList = (List)varMap.get(target);
if (varList == null) {
varList = Collections.synchronizedList(new ArrayList());
varMap.put(target, varList);
synchronized Map getVariableMap(Target target) {
Map varMap = (Map)varsMap.get(target);
if (varMap == null) {
varMap = Collections.synchronizedMap(new LRUMap());
varsMap.put(target, varMap);
}
return varList;
return varMap;
}
public ICDIRegisterGroup[] getRegisterGroups(Target target) throws CDIException {
@ -135,7 +209,6 @@ public class RegisterManager extends Manager {
}
}
return reg;
//throw new CDIException(CdiResources.getString("cdi.RegisterManager.Wrong_register_type")); //$NON-NLS-1$
}
public void destroyRegister(Register reg) {
@ -167,7 +240,7 @@ public class RegisterManager extends Manager {
}
}
public Variable createVariable(StackFrame frame, String reg) throws CDIException {
public MIVar createMiVar(StackFrame frame, String regName) throws CDIException {
Target target = (Target)frame.getTarget();
Thread currentThread = (Thread)target.getCurrentThread();
StackFrame currentFrame = currentThread.getCurrentStackFrame();
@ -176,16 +249,13 @@ public class RegisterManager extends Manager {
try {
MISession mi = target.getMISession();
CommandFactory factory = mi.getCommandFactory();
MIVarCreate var = factory.createMIVarCreate(reg);
MIVarCreate var = factory.createMIVarCreate(regName);
mi.postCommand(var);
MIVarCreateInfo info = var.getMIVarCreateInfo();
if (info == null) {
throw new CDIException(CdiResources.getString("cdi.Common.No_answer")); //$NON-NLS-1$
}
Variable variable = new LocalVariable(target, null, frame, reg, null, 0, 0, info.getMIVar());
List varList = getVariableList(target);
varList.add(variable);
return variable;
return info.getMIVar();
} catch (MIException e) {
throw new MI2CDIException(e);
} finally {
@ -194,6 +264,15 @@ public class RegisterManager extends Manager {
}
}
public Variable createShadowRegister(Register register, StackFrame frame, String regName) throws CDIException {
Target target = (Target)frame.getTarget();
MIVar miVar = createMiVar(frame, regName);
ShadowRegister variable = new ShadowRegister(register, frame, regName, miVar);
Map varMap = getVariableMap(target);
varMap.put(miVar.getVarName(), variable);
return variable;
}
/**
* Use by the eventManager to find the Register;
*/
@ -234,13 +313,6 @@ public class RegisterManager extends Manager {
public void update(Target target) throws CDIException {
MISession mi = target.getMISession();
// Variable[] vars = getVariables(target);
// for (int i = 0; i < vars.length; ++i) {
// removeMIVar(mi, vars[i].getMIVar());
// List varList = getVariableList(target);
// varList.remove(vars[i]);
// }
CommandFactory factory = mi.getCommandFactory();
MIDataListChangedRegisters changed = factory.createMIDataListChangedRegisters();
try {
@ -301,7 +373,7 @@ public class RegisterManager extends Manager {
}
private Variable[] getVariables(Target target) {
List varList = (List)varMap.get(target);
List varList = (List)varsMap.get(target);
if (varList != null) {
return (Variable[]) varList.toArray(new Variable[varList.size()]);
}
@ -331,5 +403,4 @@ public class RegisterManager extends Manager {
return null;
}
}

13
debug/org.eclipse.cdt.debug.mi.core/cdi/org/eclipse/cdt/debug/mi/core/cdi/model/Register.java
View file

@ -10,24 +10,15 @@
*******************************************************************************/
package org.eclipse.cdt.debug.mi.core.cdi.model;
import java.util.List;
import org.eclipse.cdt.debug.core.cdi.CDIException;
import org.eclipse.cdt.debug.core.cdi.model.ICDIRegister;
import org.eclipse.cdt.debug.core.cdi.model.ICDIStackFrame;
import org.eclipse.cdt.debug.core.cdi.model.ICDITarget;
import org.eclipse.cdt.debug.core.cdi.model.ICDIValue;
import org.eclipse.cdt.debug.mi.core.MIException;
import org.eclipse.cdt.debug.mi.core.MISession;
import org.eclipse.cdt.debug.mi.core.cdi.CdiResources;
import org.eclipse.cdt.debug.mi.core.cdi.ExpressionManager;
import org.eclipse.cdt.debug.mi.core.cdi.MI2CDIException;
import org.eclipse.cdt.debug.mi.core.cdi.RegisterManager;
import org.eclipse.cdt.debug.mi.core.cdi.Session;
import org.eclipse.cdt.debug.mi.core.command.CommandFactory;
import org.eclipse.cdt.debug.mi.core.command.MIVarCreate;
import org.eclipse.cdt.debug.mi.core.output.MIVar;
import org.eclipse.cdt.debug.mi.core.output.MIVarCreateInfo;
/**
*/
@ -60,6 +51,8 @@ public class Register extends Variable implements ICDIRegister {
String n = getName();
if (!n.startsWith("$")) { //$NON-NLS-1$
fFullName = "$" + n; //$NON-NLS-1$
} else {
fFullName = n;
}
}
return fFullName;
@ -84,7 +77,7 @@ public class Register extends Variable implements ICDIRegister {
public ICDIValue getValue(ICDIStackFrame context) throws CDIException {
Session session = (Session)getTarget().getSession();
RegisterManager mgr = session.getRegisterManager();
Variable var = mgr.createVariable((StackFrame)context, getQualifiedName());
Variable var = mgr.createShadowRegister(this, (StackFrame)context, getQualifiedName());
return var.getValue();
}

18
debug/org.eclipse.cdt.debug.mi.core/cdi/org/eclipse/cdt/debug/mi/core/cdi/model/Variable.java
View file

@ -73,7 +73,7 @@ import org.eclipse.cdt.debug.mi.core.output.MIVarShowAttributesInfo;
*/
public abstract class Variable extends VariableDescriptor implements ICDIVariable {
MIVar fMiVar;
protected MIVar fMiVar;
Value value;
public ICDIVariable[] children = new ICDIVariable[0];
String editable = null;
@ -273,7 +273,7 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
String name, String fullName, int pos, int depth, MIVar miVar);
public int getChildrenNumber() throws CDIException {
return fMiVar.getNumChild();
return getMIVar().getNumChild();
}
/**
@ -333,7 +333,7 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
Target target = (Target)getTarget();
MISession miSession = target.getMISession();
CommandFactory factory = miSession.getCommandFactory();
MIVarAssign var = factory.createMIVarAssign(fMiVar.getVarName(), expression);
MIVarAssign var = factory.createMIVarAssign(getMIVar().getVarName(), expression);
try {
miSession.postCommand(var);
MIInfo info = var.getMIInfo();
@ -346,7 +346,7 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
// If the assign was succesfull fire a MIVarChangedEvent() for the variable
// Note GDB will not fire an event for the changed variable we have to do it manually.
MIVarChangedEvent change = new MIVarChangedEvent(miSession, var.getToken(), fMiVar.getVarName());
MIVarChangedEvent change = new MIVarChangedEvent(miSession, var.getToken(), getMIVar().getVarName());
miSession.fireEvent(change);
// Changing values may have side effects i.e. affecting other variables
@ -382,7 +382,7 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
if (editable == null) {
MISession mi = ((Target) getTarget()).getMISession();
CommandFactory factory = mi.getCommandFactory();
MIVarShowAttributes var = factory.createMIVarShowAttributes(fMiVar.getVarName());
MIVarShowAttributes var = factory.createMIVarShowAttributes(getMIVar().getVarName());
try {
mi.postCommand(var);
MIVarShowAttributesInfo info = var.getMIVarShowAttributesInfo();
@ -404,7 +404,7 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
int fmt = Format.toMIFormat(format);
MISession mi = ((Target) getTarget()).getMISession();
CommandFactory factory = mi.getCommandFactory();
MIVarSetFormat var = factory.createMIVarSetFormat(fMiVar.getVarName(), fmt);
MIVarSetFormat var = factory.createMIVarSetFormat(getMIVar().getVarName(), fmt);
try {
mi.postCommand(var);
MIInfo info = var.getMIInfo();
@ -432,7 +432,7 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
* @return
*/
public boolean equals(Variable variable) {
return fMiVar.getVarName().equals(variable.getMIVar().getVarName());
return getMIVar().getVarName().equals(variable.getMIVar().getVarName());
}
/* (non-Javadoc)
@ -449,11 +449,11 @@ public abstract class Variable extends VariableDescriptor implements ICDIVariabl
*/
public String getTypeName() throws CDIException {
if (fTypename == null) {
fTypename = fMiVar.getType();
fTypename = getMIVar().getType();
if (fTypename == null || fTypename.length() == 0) {
MISession mi = ((Target) getTarget()).getMISession();
CommandFactory factory = mi.getCommandFactory();
MIVarInfoType infoType = factory.createMIVarInfoType(fMiVar.getVarName());
MIVarInfoType infoType = factory.createMIVarInfoType(getMIVar().getVarName());
try {
mi.postCommand(infoType);
MIVarInfoTypeInfo info = infoType.getMIVarInfoTypeInfo();

5
debug/org.eclipse.cdt.debug.mi.core/cdi/org/eclipse/cdt/debug/mi/core/cdi/model/VariableDescriptor.java
View file

@ -13,7 +13,6 @@ package org.eclipse.cdt.debug.mi.core.cdi.model;
import org.eclipse.cdt.debug.core.cdi.CDIException;
import org.eclipse.cdt.debug.core.cdi.model.ICDIStackFrame;
import org.eclipse.cdt.debug.core.cdi.model.ICDIThread;
import org.eclipse.cdt.debug.core.cdi.model.ICDIVariable;
import org.eclipse.cdt.debug.core.cdi.model.ICDIVariableDescriptor;
import org.eclipse.cdt.debug.core.cdi.model.type.ICDIType;
import org.eclipse.cdt.debug.mi.core.MIException;
@ -45,8 +44,8 @@ public abstract class VariableDescriptor extends CObject implements ICDIVariable
String qualifiedName = null;
String fFullName = null;
ICDIType fType = null;
String fTypename = null;
protected ICDIType fType = null;
protected String fTypename = null;
String sizeof = null;
/**