Bug 386175 - all threads that have ever been displayed get refreshed on

suspend

Change-Id: I3b1e842e8dd82463fe2cc35bcbdb0e52ae16baef
Signed-off-by: Pawel Piech <pawel.1.piech@gmail.com>
Reviewed-on: https://git.eclipse.org/r/9088
Reviewed-by: Marc Khouzam <marc.khouzam@ericsson.com>
IP-Clean: Marc Khouzam <marc.khouzam@ericsson.com>
Tested-by: Marc Khouzam <marc.khouzam@ericsson.com>

dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/AbstractContainerVMNode.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2011 Wind River Systems, Inc. and others.
+ * Copyright (c) 2008, 2013 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
@@ -302,7 +302,10 @@ public abstract class AbstractContainerVMNode extends AbstractExecutionContextVM
             return IModelDelta.SELECT | IModelDelta.EXPAND;
 	    } else if (e instanceof StateChangedEvent) {
 	    	return IModelDelta.STATE;
-	    }
+	    } else if (e instanceof FullStackRefreshEvent &&
+            (((FullStackRefreshEvent)e).getTriggeringEvent() instanceof IContainerSuspendedDMEvent)) {
+            return IModelDelta.CONTENT;
+        }	    
 	    return IModelDelta.NO_CHANGE;
 	}
 
@@ -389,9 +392,72 @@ public abstract class AbstractContainerVMNode extends AbstractExecutionContextVM
 	    	// If there is a state change needed on the container, update the container
 	    	if (dmc instanceof IContainerDMContext)
 	    		parentDelta.addNode(createVMContext(dmc), IModelDelta.STATE);
+        } else if (e instanceof FullStackRefreshEvent) {
+            FullStackRefreshEvent refreshEvent = (FullStackRefreshEvent)e;
+            if (refreshEvent.getTriggeringEvent() instanceof IContainerSuspendedDMEvent) {
+            	// For a full container suspended event, issue a single change when we get
+            	// a FullStackRefreshEvent.  This avoids refreshing all threads, even those
+            	// there are not visible
+            	// bug 386175
+                IContainerSuspendedDMEvent containerTriggerEvent = 
+                    (IContainerSuspendedDMEvent)refreshEvent.getTriggeringEvent();
+                buildDeltaForFullStackRefreshEvent((IContainerDMContext)refreshEvent.getDMContext(), 
+                    containerTriggerEvent.getTriggeringContexts(), parentDelta, nodeOffset, requestMonitor);
+                return;
+            }
 	    }
 	
 		requestMonitor.done();
 	 }
 
+    /**
+     * Builds a delta in response to automatic refresh event generated after 
+     * every suspend event.  
+     * <p>
+     * As opposed to the StackFrameVMNode handling of the refresh event, the 
+     * container handles only the refresh events for container suspended events, 
+     * and it refreshes the entire container.
+     * <p>
+     * The default behavior is to check if the thread is still stepping or 
+     * suspended and refresh the stack trace.
+     */
+    protected void buildDeltaForFullStackRefreshEvent(final IContainerDMContext containerCtx, 
+        final IExecutionDMContext[] triggeringCtxs, final VMDelta parentDelta, final int nodeOffset, 
+        final RequestMonitor rm) 
+    {
+        try {
+            getSession().getExecutor().execute(new DsfRunnable() {
+                @Override
+                public void run() {
+                    IRunControl runControlService = getServicesTracker().getService(IRunControl.class); 
+                    if (runControlService == null) {
+                        // Required services have not initialized yet.  Ignore the event.
+                        rm.done();
+                        return;
+                    }         
+                    
+                    // Refresh the whole list of stack frames unless the target is already stepping the next command.  In 
+                    // which case, the refresh will occur when the stepping sequence slows down or stops.  Trying to
+                    // refresh the whole stack trace with every step would slow down stepping too much.
+                    boolean isStepping = false;
+                    for (IExecutionDMContext triggeringCtx : triggeringCtxs) {
+                        if (runControlService.isStepping(triggeringCtx)) {
+                            isStepping = true;
+                            break;
+                        }
+                    }
+                    if (!isStepping) {
+                        parentDelta.addNode(createVMContext(containerCtx), IModelDelta.CONTENT);
+                    }
+                    
+                    rm.done();
+                }
+            });
+        } catch (RejectedExecutionException e) {
+            // Session shut down, no delta to build.
+            rm.done();
+        }
+    }
+
+
 }

dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/AbstractLaunchVMProvider.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2010 Wind River Systems and others.
+ * Copyright (c) 2006, 2013 Wind River 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
@@ -156,7 +156,8 @@ public class AbstractLaunchVMProvider extends AbstractDMVMProvider
                 }
             }
         } else if (event instanceof IRunControl.ISuspendedDMEvent) {
-    		final IExecutionDMContext exeContext= ((IRunControl.ISuspendedDMEvent) event).getDMContext();
+            final IRunControl.ISuspendedDMEvent suspendEvent = (IRunControl.ISuspendedDMEvent)event;
+    		final IExecutionDMContext exeContext= suspendEvent.getDMContext();
     		ScheduledFuture<?> refreshStackFramesFuture = getRefreshFuture(exeContext);
     		// trigger delayed full stack frame update
     		if (refreshStackFramesFuture != null) {
@@ -177,7 +178,7 @@ public class AbstractLaunchVMProvider extends AbstractDMVMProvider
     	                                ScheduledFuture<?> future= fRefreshStackFramesFutures.get(exeContext);
     	                                if (future != null && !isDisposed()) {
     	                                    fRefreshStackFramesFutures.remove(exeContext);
-    	                                    handleEvent(new FullStackRefreshEvent(exeContext), null);
+    	                                    handleEvent(new FullStackRefreshEvent(exeContext, suspendEvent), null);
     	                                }
     	                            }});
     	                    }

dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/FullStackRefreshEvent.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2009 Wind River Systems, Inc. and others.
+ * Copyright (c) 2008, 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
@@ -11,6 +11,8 @@
 package org.eclipse.cdt.dsf.debug.ui.viewmodel.launch;
 
 import org.eclipse.cdt.dsf.datamodel.AbstractDMEvent;
+import org.eclipse.cdt.dsf.datamodel.IDMContext;
+import org.eclipse.cdt.dsf.datamodel.IDMEvent;
 import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
 
 /**
@@ -21,8 +23,18 @@ import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
  */
 public class FullStackRefreshEvent extends AbstractDMEvent<IExecutionDMContext> {
     
+    private final IDMEvent<? extends IDMContext> fTriggeringEvent;
+    
     public FullStackRefreshEvent(IExecutionDMContext execCtx) {
+        this(execCtx, null);
+    }
+    
+    public FullStackRefreshEvent(IExecutionDMContext execCtx, IDMEvent<? extends IDMContext> triggeringEvent) {
         super(execCtx);
+        fTriggeringEvent = triggeringEvent;
     }
 
+    public IDMEvent<? extends IDMContext> getTriggeringEvent() {
+        return fTriggeringEvent;
+    }
 }

dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/StackFramesVMNode.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2010 Wind River Systems and others.
+ * Copyright (c) 2006, 2014 Wind River 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
@@ -606,7 +606,9 @@ public class StackFramesVMNode extends AbstractDMVMNode
         // label has changed.
         if (e instanceof ISuspendedDMEvent) {
             return IModelDelta.CONTENT | IModelDelta.EXPAND | IModelDelta.SELECT;
-        } else if (e instanceof FullStackRefreshEvent) {
+        } else if (e instanceof FullStackRefreshEvent &&
+            !(((FullStackRefreshEvent)e).getTriggeringEvent() instanceof IContainerSuspendedDMEvent) ) 
+        {
         	return IModelDelta.CONTENT;
         } else if (e instanceof SteppingTimedOutEvent) {
             return IModelDelta.CONTENT;
@@ -657,8 +659,15 @@ public class StackFramesVMNode extends AbstractDMVMNode
                 rm.done();
             }
         } else if (e instanceof FullStackRefreshEvent) {
-            IExecutionDMContext execDmc = ((FullStackRefreshEvent)e).getDMContext();
+            FullStackRefreshEvent refreshEvent = (FullStackRefreshEvent)e;
-            buildDeltaForFullStackRefreshEvent(execDmc, execDmc, parent, nodeOffset, rm);
+            if ( !(refreshEvent.getTriggeringEvent() instanceof IContainerSuspendedDMEvent)) {
+            	// Don't refresh each stack frame when we get an event for the entire container
+            	// Bug 386175
+            	IExecutionDMContext execDmc = ((FullStackRefreshEvent)e).getDMContext();
+            	buildDeltaForFullStackRefreshEvent(execDmc, execDmc, parent, nodeOffset, rm);
+            } else {
+                rm.done();
+            }
         } else if (e instanceof ISuspendedDMEvent) {
             resetStackFrameLimit( ((ISuspendedDMEvent)e).getDMContext() );
             IExecutionDMContext execDmc = ((ISuspendedDMEvent)e).getDMContext();