- public static void nativeInit(String name) {
- try {
- /* Prefer the version of the library bundled into the jar file and use it */
- loadLib(name);
- } catch (SimGridLibNotFoundException e) {
- /* If not found, try to see if we can find a version on disk */
- try {
- System.loadLibrary(name);
- } catch (UnsatisfiedLinkError e2) {
- System.err.println("Cannot load the bindings to the "+name+" library in path "+getPath());
- e.printStackTrace();
- System.err.println("This jar file does not seem to fit your system, and I cannot find an installation of SimGrid.");
- System.exit(1);
- }
- }
- }
-
- private static void loadLib (String name) throws SimGridLibNotFoundException {
- String Path = NativeLib.getPath();
-
- String filename=name;
- InputStream in = NativeLib.class.getClassLoader().getResourceAsStream(Path+filename);
-
- if (in == null) {
- filename = "lib"+name+".so";
- in = NativeLib.class.getClassLoader().getResourceAsStream(Path+filename);
- }
- if (in == null) {
- filename = name+".dll";
- in = NativeLib.class.getClassLoader().getResourceAsStream(Path+filename);
- }
- if (in == null) {
- filename = "lib"+name+".dll";
- in = NativeLib.class.getClassLoader().getResourceAsStream(Path+filename);
- }
- if (in == null) {
- filename = "lib"+name+".dylib";
- in = NativeLib.class.getClassLoader().getResourceAsStream(Path+filename);
- }
- if (in == null) {
- throw new SimGridLibNotFoundException("Cannot find library "+name+" in path "+Path+". Sorry, but this jar does not seem to be usable on your machine.");
- }
- try {
- // We must write the lib onto the disk before loading it -- stupid operating systems
- File fileOut = new File(filename);
- fileOut = File.createTempFile(name+"-", ".tmp");
- // don't leak the file on disk, but remove it on JVM shutdown
- Runtime.getRuntime().addShutdownHook(new Thread(new FileCleaner(fileOut.getAbsolutePath())));
- OutputStream out = new FileOutputStream(fileOut);
-
- /* copy the library in position */
- byte[] buffer = new byte[4096];
- int bytes_read;
- while ((bytes_read = in.read(buffer)) != -1) // Read until EOF
- out.write(buffer, 0, bytes_read);
-
- /* close all file descriptors, and load that shit */
- in.close();
- out.close();
- System.load(fileOut.getAbsolutePath());
- } catch (Exception e) {
- System.err.println("Error while extracting the native library from the jar: ");
- e.printStackTrace();
- throw new SimGridLibNotFoundException("Cannot load the bindings to the "+name+" library in path "+getPath(), e);
- }
- }
-
- /* A hackish mechanism used to remove the file containing our library when the JVM shuts down */