From cc76889a6fe96cffb91c9a3aa7934878c0ecd97e Mon Sep 17 00:00:00 2001 From: Sven Gothel Date: Fri, 4 May 2012 01:12:25 +0200 Subject: Use ClassLoader to find JNI native libraries. ClassLoader was only used for tool native libraries. NativeLibrary: Expose 'String findLibrary(String libName, ClassLoader loader)', allowing utilization of System.load(loader.findLibrary(libName)). JNILibLoaderBase.loadLibrary(): Add optional ClassLoader argument, used to locate the library DynamicLibraryBundle: Use DynamicLibraryInfo's ClassLoader to find native libraries (tool + jni) --- .../com/jogamp/common/jvm/JNILibLoaderBase.java | 78 +++++++++++++++------- .../com/jogamp/common/os/DynamicLibraryBundle.java | 16 ++--- src/java/com/jogamp/common/os/NativeLibrary.java | 17 +++-- src/java/com/jogamp/common/os/Platform.java | 4 +- 4 files changed, 75 insertions(+), 40 deletions(-) (limited to 'src/java') diff --git a/src/java/com/jogamp/common/jvm/JNILibLoaderBase.java b/src/java/com/jogamp/common/jvm/JNILibLoaderBase.java index 8d6e428..94bc7e7 100644 --- a/src/java/com/jogamp/common/jvm/JNILibLoaderBase.java +++ b/src/java/com/jogamp/common/jvm/JNILibLoaderBase.java @@ -46,10 +46,10 @@ import java.security.AccessController; import java.security.PrivilegedAction; import java.util.HashSet; +import com.jogamp.common.os.NativeLibrary; import com.jogamp.common.os.Platform; import com.jogamp.common.util.JarUtil; import com.jogamp.common.util.PropertyAccess; -import com.jogamp.common.util.SecurityUtil; import com.jogamp.common.util.cache.TempJarCache; import jogamp.common.Debug; @@ -63,9 +63,10 @@ public class JNILibLoaderBase { * The implementation should ignore, if the library has been loaded already.
* @param libname the library to load * @param ignoreError if true, errors during loading the library should be ignored + * @param cl optional ClassLoader, used to locate the library * @return true if library loaded successful */ - boolean loadLibrary(String libname, boolean ignoreError); + boolean loadLibrary(String libname, boolean ignoreError, ClassLoader cl); /** * Loads the library specified by libname.
@@ -74,16 +75,17 @@ public class JNILibLoaderBase { * @param libname the library to load * @param preload the libraries to load before loading the main library if not null * @param preloadIgnoreError if true, errors during loading the preload-libraries should be ignored + * @param cl optional ClassLoader, used to locate the library */ - void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError); + void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError, ClassLoader cl); } private static class DefaultAction implements LoaderAction { - public boolean loadLibrary(String libname, boolean ignoreError) { + public boolean loadLibrary(String libname, boolean ignoreError, ClassLoader cl) { boolean res = true; if(!isLoaded(libname)) { try { - loadLibraryInternal(libname); + loadLibraryInternal(libname, cl); addLoaded(libname); if(DEBUG) { System.err.println("JNILibLoaderBase: loaded "+libname); @@ -101,14 +103,14 @@ public class JNILibLoaderBase { return res; } - public void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError) { + public void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError, ClassLoader cl) { if(!isLoaded(libname)) { if (null!=preload) { for (int i=0; i + * The implementation should ignore, if the library has been loaded already.
+ * @param libname the library to load + * @param ignoreError if true, errors during loading the library should be ignored + * @param cl optional ClassLoader, used to locate the library + * @return true if library loaded successful + */ + protected static synchronized boolean loadLibrary(String libname, boolean ignoreError, ClassLoader cl) { + if (loaderAction != null) { + return loaderAction.loadLibrary(libname, ignoreError, cl); + } + return false; } - protected static synchronized void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError) { - if (loaderAction != null) { - loaderAction.loadLibrary(libname, preload, preloadIgnoreError); - } + /** + * Loads the library specified by libname, using the {@link LoaderAction} set by {@link #setLoadingAction(LoaderAction)}.
+ * Optionally preloads the libraries specified by preload.
+ * The implementation should ignore, if any library has been loaded already.
+ * @param libname the library to load + * @param preload the libraries to load before loading the main library if not null + * @param preloadIgnoreError if true, errors during loading the preload-libraries should be ignored + * @param cl optional ClassLoader, used to locate the library + */ + protected static synchronized void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError, ClassLoader cl) { + if (loaderAction != null) { + loaderAction.loadLibrary(libname, preload, preloadIgnoreError, cl); + } } // private static final Class customLauncherClass; @@ -284,7 +303,7 @@ public class JNILibLoaderBase { customLoadLibraryMethod = loadLibraryMethod; } - private static void loadLibraryInternal(String libraryName) { + private static void loadLibraryInternal(String libraryName, ClassLoader cl) { // Note: special-casing JAWT which is built in to the JDK if (null!=customLoadLibraryMethod && !libraryName.equals("jawt")) { try { @@ -305,22 +324,33 @@ public class JNILibLoaderBase { } } else { if(TempJarCache.isInitialized()) { - final String fullLibraryName = TempJarCache.findLibrary(libraryName); - if(null != fullLibraryName) { + final String libraryPath = TempJarCache.findLibrary(libraryName); + if(null != libraryPath) { if(DEBUG) { - System.err.println("JNILibLoaderBase: loadLibraryInternal("+libraryName+") -> System.load("+fullLibraryName+") (TempJarCache)"); + System.err.println("JNILibLoaderBase: loadLibraryInternal("+libraryName+") -> System.load("+libraryPath+") (TempJarCache)"); } - System.load(fullLibraryName); + System.load(libraryPath); return; // done } else if(DEBUG) { System.err.println("JNILibLoaderBase: loadLibraryInternal("+libraryName+") -> TempJarCache not mapped"); } } // System.err.println("sun.boot.library.path=" + Debug.getProperty("sun.boot.library.path", false)); + final String libraryPath = NativeLibrary.findLibrary(libraryName, cl); if(DEBUG) { - System.err.println("JNILibLoaderBase: loadLibraryInternal("+libraryName+") -> System.loadLibrary("+libraryName+")"); + System.err.print("JNILibLoaderBase: loadLibraryInternal("+libraryName+"): CL: "+libraryPath); + } + if(null != libraryPath) { + if(DEBUG) { + System.err.println(" -> System.load("+libraryPath+")"); + } + System.loadLibrary(libraryPath); + } else { + if(DEBUG) { + System.err.println(" -> System.loadLibrary("+libraryName+")"); + } + System.loadLibrary(libraryName); } - System.loadLibrary(libraryName); } } } diff --git a/src/java/com/jogamp/common/os/DynamicLibraryBundle.java b/src/java/com/jogamp/common/os/DynamicLibraryBundle.java index fc302e9..427f522 100755 --- a/src/java/com/jogamp/common/os/DynamicLibraryBundle.java +++ b/src/java/com/jogamp/common/os/DynamicLibraryBundle.java @@ -42,8 +42,8 @@ import com.jogamp.common.util.RunnableExecutor; /** * Provides bundling of:
*
* An instance provides a complete {@link com.jogamp.common.os.DynamicLookupHelper} * to {@link com.jogamp.gluegen.runtime.ProcAddressTable#reset(com.jogamp.common.os.DynamicLookupHelper) reset} @@ -52,7 +52,7 @@ import com.jogamp.common.util.RunnableExecutor; * */ @@ -251,13 +251,13 @@ public class DynamicLibraryBundle implements DynamicLookupHelper { } toolLibLoadedNumber = 0; - ClassLoader loader = getClass().getClassLoader(); + final ClassLoader cl = info.getClass().getClassLoader(); NativeLibrary lib = null; for (i=0; i < toolLibNames.size(); i++) { final List libNames = toolLibNames.get(i); if( null != libNames && libNames.size() > 0 ) { - lib = loadFirstAvailable(libNames, loader, info.shallLinkGlobal()); + lib = loadFirstAvailable(libNames, cl, info.shallLinkGlobal()); if ( null == lib ) { if(DEBUG) { System.err.println("Unable to load any Tool library of: "+libNames); @@ -285,7 +285,7 @@ public class DynamicLibraryBundle implements DynamicLookupHelper { boolean ignoreError = true; boolean res; try { - res = GlueJNILibLoader.loadLibrary(libName, ignoreError); + res = GlueJNILibLoader.loadLibrary(libName, ignoreError, cl); if(DEBUG && !res) { System.err.println("Info: Could not load JNI/Glue library: "+libName); } @@ -375,8 +375,8 @@ public class DynamicLibraryBundle implements DynamicLookupHelper { /** Inherit access */ static class GlueJNILibLoader extends JNILibLoaderBase { - protected static synchronized boolean loadLibrary(String libname, boolean ignoreError) { - return JNILibLoaderBase.loadLibrary(libname, ignoreError); + protected static synchronized boolean loadLibrary(String libname, boolean ignoreError, ClassLoader cl) { + return JNILibLoaderBase.loadLibrary(libname, ignoreError, cl); } } } diff --git a/src/java/com/jogamp/common/os/NativeLibrary.java b/src/java/com/jogamp/common/os/NativeLibrary.java index 69d69b6..d0b135e 100755 --- a/src/java/com/jogamp/common/os/NativeLibrary.java +++ b/src/java/com/jogamp/common/os/NativeLibrary.java @@ -299,10 +299,7 @@ public class NativeLibrary implements DynamicLookupHelper { // The idea to ask the ClassLoader to find the library is borrowed // from the LWJGL library - String clPath = getPathFromClassLoader(libName, loader); - if (DEBUG) { - System.err.println("NativeLibrary Class loader path to " + libName + ": " + clPath); - } + final String clPath = findLibrary(libName, loader); if (clPath != null) { paths.add(clPath); } @@ -422,9 +419,10 @@ public class NativeLibrary implements DynamicLookupHelper { private static boolean initializedFindLibraryMethod = false; private static Method findLibraryMethod = null; - private static String getPathFromClassLoader(final String libName, final ClassLoader loader) { - if (loader == null) + private static String findLibraryImpl(final String libName, final ClassLoader loader) { + if (loader == null) { return null; + } if (!initializedFindLibraryMethod) { AccessController.doPrivileged(new PrivilegedAction() { public Object run() { @@ -460,4 +458,11 @@ public class NativeLibrary implements DynamicLookupHelper { } return null; } + public static String findLibrary(final String libName, final ClassLoader loader) { + final String res = findLibraryImpl(libName, loader); + if (DEBUG) { + System.err.println("NativeLibrary.findLibrary(<"+libName+">, "+loader+"): "+res); + } + return res; + } } diff --git a/src/java/com/jogamp/common/os/Platform.java b/src/java/com/jogamp/common/os/Platform.java index fa565a0..49ae512 100644 --- a/src/java/com/jogamp/common/os/Platform.java +++ b/src/java/com/jogamp/common/os/Platform.java @@ -378,9 +378,9 @@ public class Platform { private static void loadGlueGenRTImpl() { AccessController.doPrivileged(new PrivilegedAction() { public Object run() { + final ClassLoader cl = Platform.class.getClassLoader(); if(USE_TEMP_JAR_CACHE && TempJarCache.initSingleton()) { final String nativeJarName = libBaseName+"-natives-"+os_and_arch+".jar"; - final ClassLoader cl = Platform.class.getClassLoader(); try { final URL jarUrlRoot = JarUtil.getURLDirname( JarUtil.getJarSubURL(Platform.class.getName(), cl) ); @@ -391,7 +391,7 @@ public class Platform { System.err.println("Catched: "+e0.getMessage()); } } - DynamicLibraryBundle.GlueJNILibLoader.loadLibrary(libBaseName, false); + DynamicLibraryBundle.GlueJNILibLoader.loadLibrary(libBaseName, false, cl); return null; } }); -- cgit v1.2.3