Added hot replace functionality for modified mpm files
[Mograsim.git] / plugins / net.mograsim.plugin.core / src / net / mograsim / plugin / launch / MachineLaunchConfigType.java
index 27aca7e..a97d2c6 100644 (file)
@@ -1,25 +1,51 @@
 package net.mograsim.plugin.launch;
 
+import static org.eclipse.core.resources.IResourceDelta.CHANGED;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Optional;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 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.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
 import org.eclipse.debug.core.ILaunch;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.model.LaunchConfigurationDelegate;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.statushandlers.StatusManager;
 
+import net.mograsim.machine.Machine;
 import net.mograsim.machine.MachineDefinition;
+import net.mograsim.machine.MainMemory;
+import net.mograsim.machine.MainMemoryDefinition;
+import net.mograsim.machine.mi.MicroInstructionMemory;
+import net.mograsim.machine.mi.MicroInstructionMemoryDefinition;
+import net.mograsim.machine.mi.MicroInstructionMemoryParser;
+import net.mograsim.machine.standard.memory.MainMemoryParser;
 import net.mograsim.plugin.MograsimActivator;
 import net.mograsim.plugin.nature.MachineContext;
+import net.mograsim.plugin.nature.MograsimNature;
 import net.mograsim.plugin.nature.ProjectMachineContext;
 
 public class MachineLaunchConfigType extends LaunchConfigurationDelegate
 {
-       public static final String PROJECT_ATTR = MograsimActivator.PLUGIN_ID + "project";
+       public static final String PROJECT_ATTR = MograsimActivator.PLUGIN_ID + ".project";
+       public static final String MPM_FILE_ATTR = MograsimActivator.PLUGIN_ID + ".mpm";
+       public static final String INITIAL_RAM_FILE_ATTR = MograsimActivator.PLUGIN_ID + ".initialram";
 
        private final IResourceChangeListener resChangedListener;
+       private IFile mpmFile;
+       private Machine machine;
 
        public MachineLaunchConfigType()
        {
@@ -34,21 +60,128 @@ public class MachineLaunchConfigType extends LaunchConfigurationDelegate
                                                0);
        }
 
+       @Override
+       public boolean preLaunchCheck(ILaunchConfiguration configuration, String mode, IProgressMonitor monitor) throws CoreException
+       {
+               String projName = configuration.getAttribute(PROJECT_ATTR, "");
+               if ("".equals(projName))
+                       return showErrorAndReturnFalse("No project specified");
+
+               IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projName);
+               if (!project.isAccessible())
+                       return showErrorAndReturnFalse("Project not accessible");
+               if (!project.hasNature(MograsimNature.NATURE_ID))
+                       return showErrorAndReturnFalse("Project is not a Mograsim project");
+
+               MachineContext machineContext = ProjectMachineContext.getMachineContextOf(project);
+               Optional<MachineDefinition> machDefOptional = machineContext.getMachineDefinition();
+               if (machDefOptional.isEmpty())
+                       return showErrorAndReturnFalse("No machine definition set");
+
+               MachineDefinition machineDefinition = machDefOptional.orElseThrow();
+               MicroInstructionMemoryDefinition miMemDef = machineDefinition.getMicroInstructionMemoryDefinition();
+               MainMemoryDefinition mainMemDef = machineDefinition.getMainMemoryDefinition();
+
+               String mpmFileName = configuration.getAttribute(MPM_FILE_ATTR, "");
+               if ("".equals(mpmFileName))
+                       return showErrorAndReturnFalse("No MPM file specified");
+
+               IFile mpmFile = project.getFile(mpmFileName);
+               if (mpmFile == null || !mpmFile.isAccessible())
+                       return showErrorAndReturnFalse("MPM file not accessible");
+
+               try (InputStream mpmStream = mpmFile.getContents())
+               {
+                       MicroInstructionMemoryParser.parseMemory(miMemDef, mpmStream);
+               }
+               catch (IOException e)
+               {
+                       throw new CoreException(new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, "Unexpected IO exception reading MPM file", e));
+               }
+
+               String initialRAMFileName = configuration.getAttribute(INITIAL_RAM_FILE_ATTR, "");
+               if (!"".equals(initialRAMFileName))
+               {
+                       IFile initialRAMFile = project.getFile(initialRAMFileName);
+                       if (initialRAMFile == null || !initialRAMFile.isAccessible())
+                               return showErrorAndReturnFalse("Initial RAM file not accessible");
+
+                       try (InputStream initialRAMStream = initialRAMFile.getContents())
+                       {
+                               MainMemoryParser.parseMemory(mainMemDef, initialRAMStream);
+                       }
+                       catch (IOException e)
+                       {
+                               throw new CoreException(
+                                               new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, "Unexpected IO exception reading initial RAM file", e));
+                       }
+               }
+
+               return super.preLaunchCheck(configuration, mode, monitor);
+       }
+
+       private static boolean showErrorAndReturnFalse(String message)
+       {
+               StatusManager.getManager().handle(new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, message, null), StatusManager.SHOW);
+               return false;
+       }
+
        @Override
        public void launch(ILaunchConfiguration configuration, String mode, ILaunch launch, IProgressMonitor monitor) throws CoreException
        {
                String projName = configuration.getAttribute(PROJECT_ATTR, "");
                IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projName);
+
                MachineContext machineContext = ProjectMachineContext.getMachineContextOf(project);
                MachineDefinition machineDefinition = machineContext.getMachineDefinition().orElseThrow();
+               MainMemoryDefinition mainMemDef = machineDefinition.getMainMemoryDefinition();
+
+               mpmFile = project.getFile(configuration.getAttribute(MPM_FILE_ATTR, ""));
 
-               MachineDebugTarget debugTarget = new MachineDebugTarget(new MachineProcess(launch, machineDefinition));
-               debugTarget.setExecutionSpeed(10d);
+               String initialRAMFileName = configuration.getAttribute(INITIAL_RAM_FILE_ATTR, "");
+               MainMemory mem;
+               if (!"".equals(initialRAMFileName))
+               {
+                       IFile initialRAMFile = project.getFile(initialRAMFileName);
+                       try (InputStream initialRAMStream = initialRAMFile.getContents())
+                       {
+                               mem = MainMemoryParser.parseMemory(mainMemDef, initialRAMStream);
+                       }
+                       catch (IOException e)
+                       {
+                               throw new CoreException(
+                                               new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, "Unexpected IO exception reading initial RAM file", e));
+                       }
+               } else
+                       mem = null;
+
+               MachineDebugTarget debugTarget = new MachineDebugTarget(launch, machineDefinition);
+               debugTarget.suspend();
+               debugTarget.setExecutionSpeed(1);
+               machine = debugTarget.getMachine();
+               assignMicroInstructionMemory();
+               if (mem != null)
+                       machine.getMainMemory().bind(mem);
+               machine.reset();
+       }
+
+       private void assignMicroInstructionMemory() throws CoreException
+       {
+               try (InputStream mpmStream = mpmFile.getContents())
+               {
+                       MicroInstructionMemory mpm = MicroInstructionMemoryParser
+                                       .parseMemory(machine.getDefinition().getMicroInstructionMemoryDefinition(), mpmStream);
+                       machine.getMicroInstructionMemory().bind(mpm);
+               }
+               catch (IOException e)
+               {
+                       throw new CoreException(new Status(IStatus.ERROR, MograsimActivator.PLUGIN_ID, "Unexpected IO exception reading MPM file", e));
+               }
        }
 
        private void resourceChanged(IResourceChangeEvent event)
        {
-               // TODO react to MPM changes
+               // TODO remove Sysout
                int type = event.getType();
                String typeStr;
                switch (type)
@@ -58,6 +191,33 @@ public class MachineLaunchConfigType extends LaunchConfigurationDelegate
                        break;
                case IResourceChangeEvent.POST_CHANGE:
                        typeStr = "POST_CHANGE";
+                       IResourceDelta mpmDelta;
+                       if ((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()));
+                                       }
+                               }
+                       }
                        break;
                case IResourceChangeEvent.PRE_BUILD:
                        typeStr = "PRE_BUILD";