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/*******************************************************************************
* Copyright (c) 2014 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.tcf.debug.test.services;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import org.eclipse.tcf.debug.test.services.ResetMap.IResettable;
import org.eclipse.tcf.debug.test.util.DataCallback;
import org.eclipse.tcf.debug.test.util.ICache;
import org.eclipse.tcf.debug.test.util.RangeCache;
import org.eclipse.tcf.debug.test.util.TokenCache;
import org.eclipse.tcf.debug.test.util.Transaction;
import org.eclipse.tcf.debug.test.util.TransactionCache;
import org.eclipse.tcf.protocol.IChannel;
import org.eclipse.tcf.protocol.IToken;
import org.eclipse.tcf.services.IMemory;
import org.eclipse.tcf.services.IMemory.MemoryContext;
import org.eclipse.tcf.services.IMemoryMap;
import org.eclipse.tcf.services.IRunControl;
import org.eclipse.tcf.services.IRunControl.RunControlContext;
import org.eclipse.tcf.services.IStackTrace;
import org.eclipse.tcf.services.IStackTrace.StackTraceContext;
/**
*
*/
public class StackTraceCM extends AbstractCacheManager {
private IStackTrace fService;
private RunControlCM fRunControlCM;
private IMemory fMemory;
private IMemoryMap fMemoryMap;
private final ResetMap fRunControlStateResetMap = new ResetMap();
private final ResetMap fMemoryResetMap = new ResetMap();
/**
* Listener public for testing purposes only.
*/
public final IRunControl.RunControlListener fRunControlListener = new IRunControl.RunControlListener() {
@Override
public void contextAdded(RunControlContext[] contexts) {
}
@Override
public void contextChanged(RunControlContext[] contexts) {
for (RunControlContext context : contexts) fRunControlStateResetMap.reset(context.getID());
}
@Override
public void contextRemoved(String[] context_ids) {
for (String id : context_ids) fRunControlStateResetMap.reset(id);
}
@Override
public void contextSuspended(String context, String pc, String reason, Map<String, Object> params) {
fRunControlStateResetMap.reset(context);
}
@Override
public void contextResumed(String context) {
fRunControlStateResetMap.reset(context);
}
@Override
public void containerSuspended(String context, String pc, String reason, Map<String, Object> params,
String[] suspended_ids)
{
for (String id : suspended_ids) fRunControlStateResetMap.reset(id);
}
@Override
public void containerResumed(String[] context_ids) {
for (String id : context_ids) fRunControlStateResetMap.reset(id);
}
@Override
public void contextException(String context, String msg) {
fRunControlStateResetMap.reset(context);
}
};
public final IMemory.MemoryListener fMemoryListener = new IMemory.MemoryListener() {
@Override
public void contextAdded(MemoryContext[] contexts) {
}
@Override
public void contextChanged(MemoryContext[] contexts) {
for (MemoryContext context : contexts) fMemoryResetMap.reset(context.getID());
}
public void contextRemoved(String[] context_ids) {
for (String context_id : context_ids) fMemoryResetMap.reset(context_id);
};
@Override
public void memoryChanged(String context_id, Number[] addr, long[] size) {
fMemoryResetMap.reset(context_id);
}
};
public final IMemoryMap.MemoryMapListener fMemoryMapListener = new IMemoryMap.MemoryMapListener() {
@Override
public void changed(String context_id) {
// Memory Map changed
fMemoryResetMap.reset(context_id);
}
};
public StackTraceCM(IChannel channel, IStackTrace service, RunControlCM runControlCM, IMemory memory, IMemoryMap memoryMap) {
super(channel);
fService = service;
fRunControlCM = runControlCM;
fRunControlCM.getService().addListener(fRunControlListener);
fMemory = memory;
fMemory.addListener(fMemoryListener);
fMemoryMap = memoryMap;
fMemoryMap.addListener(fMemoryMapListener);
}
@Override
public void dispose() {
fRunControlCM.getService().removeListener(fRunControlListener);
fMemory.removeListener(fMemoryListener);
fMemoryMap.removeListener(fMemoryMapListener);
super.dispose();
}
public ICache<String[]> getChildren(final String id) {
class MyCache extends TransactionCache<String[]> {
class InnerCache extends TokenCache<String[]> implements IStackTrace.DoneGetChildren {
InnerCache() { super(fChannel); }
@Override
protected IToken retrieveToken() {
return fService.getChildren(id, this);
}
@Override
public void doneGetChildren(IToken token, Exception error, String[] context_ids) {
set(token, context_ids, error);
}
};
private final InnerCache fInner = new InnerCache();
@Override
protected String[] process() throws InvalidCacheException, ExecutionException {
RunControlContext rcContext = validate(fRunControlCM.getContext(id));
validate(fInner);
fRunControlStateResetMap.addValid(id, fInner);
fMemoryResetMap.addValid(rcContext.getProcessID(), fInner);
return fInner.getData();
}
};
return mapCache(new IdKey<MyCache>(MyCache.class, id) {
@Override MyCache createCache() { return new MyCache(); }
});
}
public RangeCache<StackTraceContext> getContextRange(final String parentId) {
class MyCache extends RangeCache<StackTraceContext> implements IResettable {
boolean fIsValid = false;
@Override
protected void retrieve(final long offset, final int count, DataCallback<List<StackTraceContext>> rm) {
new Transaction<List<StackTraceContext>>() {
@Override
protected List<StackTraceContext> process() throws InvalidCacheException, ExecutionException {
String[] ids = validate(getChildren(parentId));
int adjustedCount = Math.min(count, ids.length + (int)offset);
String[] subIds = new String[adjustedCount];
System.arraycopy(ids, (int)offset, subIds, 0, adjustedCount);
StackTraceContext[] contexts = validate(getContexts(subIds));
RunControlContext rcContext = validate(fRunControlCM.getContext(parentId));
if (!fIsValid) {
fRunControlStateResetMap.addValid(parentId, MyCache.this);
fMemoryResetMap.addValid(rcContext.getProcessID(), MyCache.this);
}
return Arrays.asList(contexts);
}
}.request(rm);
}
public void reset() {
fIsValid = false;
@SuppressWarnings("unchecked")
List<StackTraceContext> emptyData = (List<StackTraceContext>)Collections.EMPTY_LIST;
set(0, 0, emptyData, new Throwable("Cache invalid") );
}
};
return mapCache(new IdKey<MyCache>(MyCache.class, parentId) {
@Override MyCache createCache() { return new MyCache(); }
});
}
public ICache<StackTraceContext[]> getContexts(final String[] ids) {
assert ids.length != 0;
class MyCache extends TransactionCache<StackTraceContext[]> {
class InnerCache extends TokenCache<StackTraceContext[]> implements IStackTrace.DoneGetContext {
InnerCache() { super(fChannel); }
@Override
protected IToken retrieveToken() {
return fService.getContext(ids, this);
}
public void doneGetContext(IToken token, Exception error, StackTraceContext[] contexts) {
set(token, contexts, error);
}
}
private InnerCache fInner = new InnerCache();
@Override
protected StackTraceContext[] process() throws InvalidCacheException, ExecutionException {
StackTraceContext[] contexts = validate(fInner);
String threadId = contexts[0].getParentID();
fMemoryResetMap.addPending(fInner);
RunControlContext threadContext = validate(fRunControlCM.getContext(threadId));
fRunControlStateResetMap.addValid(threadId, fInner);
fMemoryResetMap.addValid(threadContext.getProcessID(), fInner);
return contexts;
}
}
return mapCache(new IdKey<MyCache>(MyCache.class, Arrays.toString(ids)) {
@Override MyCache createCache() { return new MyCache(); }
});
}
}
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