package net.mograsim.plugin.launch;
+import static org.eclipse.core.resources.IResourceDelta.CHANGED;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.function.Consumer;
+
+import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarkerDelta;
+import org.eclipse.core.resources.IResourceChangeEvent;
+import org.eclipse.core.resources.IResourceChangeListener;
+import org.eclipse.core.resources.IResourceDelta;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.PlatformObject;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.model.IProcess;
import org.eclipse.debug.core.model.IStepFilters;
import org.eclipse.debug.core.model.IThread;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.ui.PlatformUI;
import net.mograsim.logic.model.LogicExecuter;
import net.mograsim.machine.Machine;
import net.mograsim.machine.MachineDefinition;
+import net.mograsim.machine.mi.MicroInstructionMemoryParser;
+import net.mograsim.machine.standard.memory.MainMemoryParser;
import net.mograsim.plugin.MograsimActivator;
public class MachineDebugTarget extends PlatformObject implements IDebugTarget, IMemoryBlockRetrievalExtension
{
+ private final static boolean USE_PSEUDO_THREAD = true;
+
private final ILaunch launch;
private final Machine machine;
private final LogicExecuter exec;
+ private final MachineThread thread;
+ private final IFile mpmFile;
+ private final Optional<IFile> memFile;
private boolean running;
- public MachineDebugTarget(ILaunch launch, MachineDefinition machineDefinition)
+ private final List<Consumer<Double>> executionSpeedListeners;
+
+ private final IResourceChangeListener resChangedListener;
+
+ public MachineDebugTarget(ILaunch launch, IFile mpmFile, Optional<IFile> memFile, MachineDefinition machineDefinition)
+ throws CoreException
{
this.launch = launch;
this.machine = machineDefinition.createNew();
this.exec = new LogicExecuter(machine.getTimeline());
+ this.executionSpeedListeners = new ArrayList<>();
+ this.mpmFile = mpmFile;
+ this.memFile = memFile;
+
+ assignMicroInstructionMemory();
+ assignMainMemory();
+
exec.startLiveExecution();
running = true;
getLaunch().addDebugTarget(this);
fireCreationEvent();
+
+ this.resChangedListener = this::resourceChanged;
+ ResourcesPlugin.getWorkspace().addResourceChangeListener(resChangedListener, IResourceChangeEvent.POST_CHANGE);
+
+ // create after creating ourself
+ this.thread = USE_PSEUDO_THREAD ? new MachineThread(this) : null;
}
public Machine getMachine()
public void setExecutionSpeed(double speed)
{
if (getExecutionSpeed() != speed)
+ {
exec.setSpeedFactor(speed);
+ callExecutionSpeedListener(speed);
+ }
}
@Override
if (isTerminated())
return;
+ ResourcesPlugin.getWorkspace().removeResourceChangeListener(resChangedListener);
exec.stopLiveExecution();
running = false;
fireTerminateEvent();
@Override
public boolean hasThreads() throws DebugException
{
- return false;
+ return USE_PSEUDO_THREAD;
}
@Override
public IThread[] getThreads() throws DebugException
{
- return new IThread[0];
+ return thread == null ? new IThread[0] : new IThread[] { thread };
+ }
+
+ public void addExecutionSpeedListener(Consumer<Double> executionSpeedListener)
+ {
+ executionSpeedListeners.add(executionSpeedListener);
+ }
+
+ public void removeExecutionSpeedListener(Consumer<Double> executionSpeedListener)
+ {
+ executionSpeedListeners.remove(executionSpeedListener);
+ }
+
+ private void callExecutionSpeedListener(double executionSpeed)
+ {
+ executionSpeedListeners.forEach(l -> l.accept(executionSpeed));
}
@SuppressWarnings("unchecked")
throw new DebugException(
new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, DebugException.TARGET_REQUEST_FAILED, message, null));
}
+
+ private void resourceChanged(IResourceChangeEvent event)
+ {
+ IResourceDelta mpmDelta;
+ if (event.getType() == IResourceChangeEvent.POST_CHANGE && (mpmDelta = event.getDelta().findMember(mpmFile.getFullPath())) != null
+ && (mpmDelta.getKind() & CHANGED) == CHANGED && mpmFile.exists())
+ {
+ AtomicBoolean doHotReplace = new AtomicBoolean();
+ PlatformUI.getWorkbench().getDisplay().syncExec(() ->
+ {
+ if (MessageDialog.openConfirm(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Hot Replace MPM?",
+ String.format("The MPM %s has been modified on the file system. Replace simulated MPM with modified contents?",
+ mpmFile.getName())))
+ doHotReplace.set(true);
+ });
+ if (doHotReplace.get())
+ {
+ try
+ {
+ assignMicroInstructionMemory();
+ }
+ catch (CoreException e)
+ {
+ PlatformUI.getWorkbench().getDisplay()
+ .asyncExec(() -> MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(),
+ "Failed Hot Replace!",
+ "An error occurred trying to read the modified MPM from the file system: " + e.getMessage()));
+ }
+ }
+ }
+ }
+
+ private void assignMicroInstructionMemory() throws CoreException
+ {
+ try (InputStream mpmStream = mpmFile.getContents())
+ {
+ machine.getMicroInstructionMemory().bind(
+ MicroInstructionMemoryParser.parseMemory(machine.getDefinition().getMicroInstructionMemoryDefinition(), mpmStream));
+ }
+ catch (IOException e)
+ {
+ throw new CoreException(new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, "Unexpected IO exception reading MPM file", e));
+ }
+ }
+
+ private void assignMainMemory() throws CoreException
+ {
+ if (memFile.isPresent())
+ {
+ try (InputStream initialRAMStream = memFile.get().getContents())
+ {
+ machine.getMainMemory()
+ .bind(MainMemoryParser.parseMemory(machine.getDefinition().getMainMemoryDefinition(), initialRAMStream));
+ }
+ catch (IOException e)
+ {
+ throw new CoreException(
+ new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, "Unexpected IO exception reading initial RAM file", e));
+ }
+ }
+ }
+
+ public IFile getMPMFile()
+ {
+ return mpmFile;
+ }
+
+ public Optional<IFile> getMEMFile()
+ {
+ return memFile;
+ }
}
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