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/*******************************************************************************
* Copyright (c) 2007, 2010 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tm.internal.tcf.debug.ui.model;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.tm.tcf.protocol.IToken;
import org.eclipse.tm.tcf.services.IMemory;
import org.eclipse.tm.tcf.services.IRunControl;
import org.eclipse.tm.tcf.util.TCFDataCache;
/**
* This class is used to maintain a dynamic list of both executable contexts and memory spaces
* that are children of a given parent context. The job is slightly complicated by necessity
* to merge results from two independent services.
*/
public class TCFChildrenExecContext extends TCFChildren {
private final TCFChildren mem_children;
private final TCFChildren run_children;
TCFChildrenExecContext(final TCFNode node) {
super(node);
mem_children = new TCFChildren(node) {
@Override
protected boolean startDataRetrieval() {
IMemory mem = node.model.getLaunch().getService(IMemory.class);
if (mem == null) {
set(null, null, new HashMap<String,TCFNode>());
return true;
}
assert command == null;
command = mem.getChildren(node.id, new IMemory.DoneGetChildren() {
public void doneGetChildren(IToken token, Exception error, String[] contexts) {
Map<String,TCFNode> data = null;
if (command == token && error == null) {
int cnt = 0;
data = new HashMap<String,TCFNode>();
for (String id : contexts) {
TCFNode n = node.model.getNode(id);
if (n == null) n = new TCFNodeExecContext(node, id);
((TCFNodeExecContext)n).setMemSeqNo(cnt++);
assert n.parent == node;
data.put(id, n);
}
}
set(token, error, data);
}
});
return false;
}
};
run_children = new TCFChildren(node) {
@Override
protected boolean startDataRetrieval() {
IRunControl run = node.model.getLaunch().getService(IRunControl.class);
if (run == null) {
set(null, null, new HashMap<String,TCFNode>());
return true;
}
assert command == null;
command = run.getChildren(node.id, new IRunControl.DoneGetChildren() {
public void doneGetChildren(IToken token, Exception error, String[] contexts) {
Map<String,TCFNode> data = null;
if (command == token && error == null) {
int cnt = 0;
data = new HashMap<String,TCFNode>();
for (String id : contexts) {
TCFNode n = node.model.getNode(id);
if (n == null) n = new TCFNodeExecContext(node, id);
((TCFNodeExecContext)n).setExeSeqNo(cnt++);
assert n.parent == node;
data.put(id, n);
}
}
set(token, error, data);
}
});
return false;
}
};
}
@Override
protected boolean startDataRetrieval() {
TCFDataCache<?> pending = null;
if (!mem_children.validate()) pending = mem_children;
if (!run_children.validate()) pending = run_children;
if (pending != null) {
pending.wait(this);
return false;
}
Throwable error = mem_children.getError();
if (error == null) error = run_children.getError();
Map<String,TCFNode> data = new HashMap<String,TCFNode>();
Map<String,TCFNode> m1 = mem_children.getData();
Map<String,TCFNode> m2 = run_children.getData();
if (m1 != null) data.putAll(m1);
if (m2 != null) data.putAll(m2);
set(null, error, data);
return true;
}
void onContextAdded(IRunControl.RunControlContext context) {
// To preserve children order need to reset children list.
reset();
run_children.reset();
mem_children.reset();
assert !node.isDisposed();
String id = context.getID();
TCFNodeExecContext n = (TCFNodeExecContext)node.model.getNode(id);
if (n == null) {
n = new TCFNodeExecContext(node, id);
n.postContextAddedDelta();
add(n);
}
else {
n.postAllChangedDelta();
}
run_children.add(n);
n.setRunContext(context);
}
void onContextAdded(IMemory.MemoryContext context) {
// To preserve children order need to reset children list.
reset();
run_children.reset();
mem_children.reset();
assert !node.isDisposed();
String id = context.getID();
TCFNodeExecContext n = (TCFNodeExecContext)node.model.getNode(id);
if (n == null) {
n = new TCFNodeExecContext(node, id);
n.postContextAddedDelta();
add(n);
}
else {
n.postAllChangedDelta();
}
mem_children.add(n);
n.setMemoryContext(context);
}
void onMemoryMapChanged() {
for (TCFNode n : getNodes()) ((TCFNodeExecContext)n).onMemoryMapChanged();
}
}
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