X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e37c1e4bba9bb89cd2842f08cde998eb7f941d04..e06fba861f676841107140640d9961e6661be588:/src/bindings/java/org/simgrid/msg/VM.java

diff --git a/src/bindings/java/org/simgrid/msg/VM.java b/src/bindings/java/org/simgrid/msg/VM.java
index 9389a554bd..4454960a85 100644
--- a/src/bindings/java/org/simgrid/msg/VM.java
+++ b/src/bindings/java/org/simgrid/msg/VM.java
@@ -1,73 +1,165 @@
-/*
- * JNI interface to Cloud interface in Simgrid
- * 
- * Copyright 2006-2012 The SimGrid Team.           
- * All right reserved. 
- *
- * This program is free software; you can redistribute 
- * it and/or modify it under the terms of the license 
- * (GNU LGPL) which comes with this package.
- */
+/* JNI interface to virtual machine in Simgrid */
+
+/* Copyright (c) 2006-2014. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
 package org.simgrid.msg;
 
 import org.simgrid.msg.Host;
 import org.simgrid.msg.Process;
 
-public class VM {
-	/**
-	 * This attribute represents a bind between a java task object and
-	 * a native task. Even if this attribute is public you must never
-	 * access to it. It is set automatically during the build of the object.
-	 */
-	private long bind = 0;
+public class VM extends Host{
+	// Please note that we are not declaring a new bind variable 
+	//(the bind variable has been inherited from the super class Host)
+	
+	/* Static functions */ 
+	// GetByName is inherited from the super class Host
 	
-	private int coreAmount;
 
-        private String name;
+	 private static VM[] vms=null; 	  
+    private Host currentHost; 
+
+	/* Constructors / destructors */
+    /**
+	 * Create a `basic' VM (i.e. 1 core, 1GB of RAM, other values are not taken into account).
+	 */
+	public VM(Host host, String name) {
+		this(host,name,1,1024, -1, null, -1,0 , 0);
+	}
+
 	/**
-	 * Create a new empty VM.
-	 * NOTE: it is expected that in the future, the coreAmount parameter will be used
-	 * to add extra constraints on the execution, but the argument is ignored for now.
+	 * Create a  VM
+	 * @param host  Host node
+	 * @param name name of the machine
+	 * @param nCore number of core
+	 * @param ramSize size of the RAM that should be allocated (in MBytes)
+	 * @param netCap (not used for the moment)
+	 * @param diskPath (not used for the moment)
+	 * @param diskSize (not used for the moment)
+	 * @param migNetSpeed (network bandwith allocated for migrations in MB/s, if you don't know put zero ;))
+	 * @param dpIntensity (dirty page percentage according to migNetSpeed, [0-100], if you don't know put zero ;))
 	 */
-	public VM(Host host, String name, int coreAmount) {
-		this.coreAmount = coreAmount;
-		this.name = name;
-		start(host,name,coreAmount);
+	public VM(Host host, String name, int nCore,  int ramSize, 
+			int netCap, String diskPath, int diskSize, int migNetSpeed, int dpIntensity){
+		super();
+		super.name = name; 
+		this.currentHost = host; 
+		create(host, name, nCore, ramSize, netCap, diskPath, diskSize, migNetSpeed, dpIntensity);
+		VM.addVM(this);
+	}
+
+	private static void addVM(VM vm){
+		VM[] vmsN=null; 
+	  	int i=0;
+		if(VM.vms == null)
+			vmsN = new VM[1]; 
+		else
+			vmsN = new VM[vms.length+1]; 
+		
+		for (i=0; i<vmsN.length-1 ; i ++){
+			vmsN[i]=vms[i];	
+		} 
+		vmsN[i]=vm;
+		vms=vmsN;
+	}
+   public static VM[] all(){
+		return vms;
+	}
+	public static VM getVMByName(String name){
+		for (int i=0 ; i < vms.length ; i++){
+			  if (vms[i].getName().equals(name))
+					return vms[i];		
+		}
+		return null; 
 	}
 	protected void finalize() {
 		destroy();
 	}
-	/**
-	 * Destroy the VM
-	 */
-	protected native void destroy();
-	/**
-	 * Natively implemented method starting the VM.
-	 * @param coreAmount
-	 */
-	private native void start(Host host, String name, int coreAmount);
-		
+	
+
+	/* JNI / Native code */
+
+	/* get/set property methods are inherited from the Host class. */
+	
 	/** Returns whether the given VM is currently suspended
 	 */	
-	public native boolean isSuspended();
+	public native int isCreated();
+	
 	/** Returns whether the given VM is currently running
 	 */
-	public native boolean isRunning();
-	/** Add the given process into the VM.
-	 * Afterward, when the VM is migrated or suspended or whatever, the process will have the corresponding handling, too.
-	 */	
-	public native void bind(Process process);
-	/** Removes the given process from the given VM, and kill it
-	 *  Will raise a ProcessNotFound exception if the process were not binded to that VM
+	public native int isRunning();
+
+	/** Returns whether the given VM is currently running
+	 */
+	public native int isMigrating();
+	
+	/** Returns whether the given VM is currently suspended
 	 */	
-	public native void unbind(Process process);
-	/** Immediately change the host on which all processes are running
-	 *
-	 * No migration cost occurs. If you want to simulate this too, you want to use a
-	 * Task.send() before or after, depending on whether you want to do cold or hot
-	 * migration.
+	public native int isSuspended();
+		
+	/** Returns whether the given VM is currently saving
+	 */
+	public native int isSaving();
+	
+	/** Returns whether the given VM is currently saved
+	 */
+	public native int isSaved();
+
+	/** Returns whether the given VM is currently restoring its state
+	 */
+	public native boolean isRestoring();
+	
+	/**
+	 * Natively implemented method create the VM.
+	 * @param nCore number of core
+	 * @param ramSize size of the RAM that should be allocated (in MB)
+	 * @param netCap (not used for the moment)
+	 * @param diskPath (not used for the moment)
+	 * @param diskSize (not used for the moment)
+	 * @param migNetSpeed (network bandwith allocated for migrations in MB/s, if you don't know put zero ;))
+	 * @param dpIntensity (dirty page intensity, a percentage of migNetSpeed [0-100],  if you don't know put zero ;))
+	 */
+	private native void create(Host host, String name, int nCore, int ramSize, 
+			 int netCap, String diskPath, int diskSize, int migNetSpeed, int dpIntensity);
+
+
+	/**
+	 * Bound the VM to a certain % of its vcpu capability (e.g. 75% of vm.getSpeed())
+	 * @param load percentage (between [0,100]
+	 */
+	public native void setBound(int load);
+
+	/**
+	 * start the VM
+	 */
+	public native void start();
+
+	
+	/**
+	 * Immediately kills all processes within the given VM. Any memory that they allocated will be leaked.
+	 * No extra delay occurs. If you want to simulate this too, you want to use a MSG_process_sleep() or something
+	 */
+	public native void shutdown();
+	
+	/**  
+	 * Invoke native migration routine
+	*/
+	public native void internalmig(Host destination);
+
+	
+	/** Change the host on which all processes are running
+	 * (pre-copy is implemented)
 	 */	
-	public native void migrate(Host destination);
+	public void migrate(Host destination){
+		this.internalmig(destination);
+		// TODO we should test whether the migration has been correctly finalized. 
+		// If and only if it is ok, then we should change the currentHost value. 
+		this.currentHost = destination; 
+	}
+	
 	/** Immediately suspend the execution of all processes within the given VM
 	 *
 	 * No suspension cost occurs. If you want to simulate this too, you want to
@@ -75,6 +167,7 @@ public class VM {
 	 * of VM suspend to you.
 	 */	
 	public native void suspend();
+	
 	/** Immediately resumes the execution of all processes within the given VM
 	 *
 	 * No resume cost occurs. If you want to simulate this too, you want to
@@ -82,17 +175,39 @@ public class VM {
 	 * of VM resume to you.
 	 */
 	public native void resume();
-	/**
-	 * Immediately kills all processes within the given VM. Any memory that they allocated will be leaked.
-	 * No extra delay occurs. If you want to simulate this too, you want to use a MSG_process_sleep() or something
+	
+	/** Immediately suspend the execution of all processes within the given VM 
+	 *  and save its state on the persistent HDD
+	 *  Not yet implemented (for the moment it behaves like suspend)
+	 *  No suspension cost occurs. If you want to simulate this too, you want to
+	 *  use a \ref File.write() before or after, depending on the exact semantic
+	 *  of VM suspend to you.
+	 */	
+	public native void save();
+	
+	/** Immediately resumes the execution of all processes previously saved 
+	 * within the given VM
+	 *  Not yet implemented (for the moment it behaves like resume)
+	 *
+	 * No resume cost occurs. If you want to simulate this too, you want to
+	 * use a \ref File.read() before or after, depending on the exact semantic
+	 * of VM resume to you.
 	 */
-	public native void shutdown();
+	public native void restore();
+	
+
 	/**
-	 * Reboot the VM, restarting all the processes in it.
+	 * Destroy the VM
 	 */
-	public native void reboot();
+	public native void destroy();
 
-	public String getName() {
-		return name;
-	}		
+	
+
+	/**
+	 * Class initializer, to initialize various JNI stuff
+	 */
+	public static native void nativeInit();
+	static {
+		nativeInit();
+	}
 }