1 /* JNI interface to C code for MSG. */
3 /* Copyright (c) 2006-2014. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
9 package org.simgrid.msg;
10 import org.simgrid.NativeLib;
12 import java.io.FileOutputStream;
13 import java.io.InputStream;
14 import java.io.OutputStream;
18 public final class Msg {
19 /* Statically load the library which contains all native functions used in here */
20 static private boolean isNativeInited = false;
21 public static void nativeInit() {
24 NativeLib.nativeInit("simgrid");
25 NativeLib.nativeInit("simgrid-java");
26 isNativeInited = true;
34 /** Retrieve the simulation time
35 * @return The simulation time.
37 public final static native double getClock();
39 * Issue a debug logging message.
40 * @param s message to log.
42 public final static native void debug(String s);
44 * Issue an verbose logging message.
45 * @param s message to log.
47 public final static native void verb(String s);
49 /** Issue an information logging message
52 public final static native void info(String s);
54 * Issue an warning logging message.
55 * @param s message to log.
57 public final static native void warn(String s);
59 * Issue an error logging message.
60 * @param s message to log.
62 public final static native void error(String s);
64 * Issue an critical logging message.
65 * @param s message to log.
67 public final static native void critical(String s);
69 /*********************************************************************************
70 * Deployment and initialization related functions *
71 *********************************************************************************/
74 * The natively implemented method to initialize a MSG simulation.
76 * @param args The arguments of the command line of the simulation.
78 public final static native void init(String[]args);
81 * Run the MSG simulation.
83 * The simulation is not cleaned afterward (see
84 * {@link #clean()} if you really insist on cleaning the C side), so you can freely
85 * retrieve the informations that you want from the simulation. In particular, retrieving the status
86 * of a process or the current date is perfectly ok.
88 public final static native void run() ;
90 /** This function is useless nowadays, just stop calling it. */
92 public final static void clean(){}
95 * The native implemented method to create the environment of the simulation.
97 * @param platformFile The XML file which contains the description of the environment of the simulation
100 public final static native void createEnvironment(String platformFile);
102 public final static native As environmentGetRoutingRoot();
105 * The method to deploy the simulation.
108 * @param deploymentFile
110 public final static native void deployApplication(String deploymentFile);
112 /** Example launcher. You can use it or provide your own launcher, as you wish
114 * @throws MsgException
116 static public void main(String[]args) throws MsgException {
117 /* initialize the MSG simulation. Must be done before anything else (even logging). */
120 if (args.length < 2) {
121 Msg.info("Usage: Msg platform_file deployment_file");
125 /* Load the platform and deploy the application */
126 Msg.createEnvironment(args[0]);
127 Msg.deployApplication(args[1]);
128 /* Execute the simulation */