diff options
Diffstat (limited to 'src/java/com/jogamp/gluegen/runtime/NativeLibLoader.java')
-rwxr-xr-x | src/java/com/jogamp/gluegen/runtime/NativeLibLoader.java | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/java/com/jogamp/gluegen/runtime/NativeLibLoader.java b/src/java/com/jogamp/gluegen/runtime/NativeLibLoader.java new file mode 100755 index 0000000..662a059 --- /dev/null +++ b/src/java/com/jogamp/gluegen/runtime/NativeLibLoader.java @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * Neither the name of Sun Microsystems, Inc. or the names of + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN + * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR + * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR + * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE + * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF + * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + * + * Sun gratefully acknowledges that this software was originally authored + * and developed by Kenneth Bradley Russell and Christopher John Kline. + */ + +package com.jogamp.gluegen.runtime; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.security.*; + +/** Class providing control over whether GlueGen loads the native code + associated with the NativeLibrary implementation. Alternative app + launchers such as those running within applets may want to disable + this default loading behavior and load the native code via another + (manual) mechanism. */ +public class NativeLibLoader { + private static volatile boolean loadingEnabled = true; + private static volatile boolean didLoading; + + public static void disableLoading() { + loadingEnabled = false; + } + + public static void enableLoading() { + loadingEnabled = true; + } + + public static void loadGlueGenRT() { + if (!didLoading && loadingEnabled) { + synchronized (NativeLibLoader.class) { + if (!didLoading && loadingEnabled) { + didLoading = true; + AccessController.doPrivileged(new PrivilegedAction() { + public Object run() { + loadLibraryInternal("gluegen-rt"); + return null; + } + }); + } + } + } + } + + private static void loadLibraryInternal(String libraryName) { + String sunAppletLauncher = System.getProperty("sun.jnlp.applet.launcher"); + boolean usingJNLPAppletLauncher = Boolean.valueOf(sunAppletLauncher).booleanValue(); + + if (usingJNLPAppletLauncher) { + try { + Class jnlpAppletLauncherClass = Class.forName("org.jdesktop.applet.util.JNLPAppletLauncher"); + Method jnlpLoadLibraryMethod = jnlpAppletLauncherClass.getDeclaredMethod("loadLibrary", new Class[] { String.class }); + jnlpLoadLibraryMethod.invoke(null, new Object[] { libraryName }); + } catch (Exception e) { + Throwable t = e; + if (t instanceof InvocationTargetException) { + t = ((InvocationTargetException) t).getTargetException(); + } + if (t instanceof Error) + throw (Error) t; + if (t instanceof RuntimeException) { + throw (RuntimeException) t; + } + // Throw UnsatisfiedLinkError for best compatibility with System.loadLibrary() + throw (UnsatisfiedLinkError) new UnsatisfiedLinkError().initCause(e); + } + } else { + System.loadLibrary(libraryName); + } + } +} |