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/* Copyright (C) 2001 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package gnu.gcj.runtime;
import java.util.Hashtable;
/**
* A ClassLoader backed by a gcj-compiled shared library.
* @author Per Bothner <per@bothner.com>, Brainfood Inc.
*/
public class SharedLibLoader extends ClassLoader
{
public native void finalize ();
/** Called during dlopen's processing of the init section. */
void registerClass(String name, Class cls)
{
classMap.put(name, cls);
}
/** Load a shared library, and associate a ClassLoader with it.
* @param libname named of shared library (passed to dlopen)
* @param parent the parent ClassLoader
* @parem flags passed to dlopen
*/
public SharedLibLoader(String libname, ClassLoader parent, int flags)
{
super(parent);
init(libname, flags);
}
/** Load a shared library, and asociate a ClassLoader with it.
* @param libname named of shared library (passed to dlopen)
*/
public SharedLibLoader(String libname)
{
super(getSystemClassLoader());
init(libname, 0);
}
void init(String libname, int flags)
{
init(libname.getBytes(), flags);
}
native void init(byte[] libname, int flags);
public Class loadClass(String name)
throws ClassNotFoundException
{
return super.loadClass(name);
}
public Class findClass(String name)
throws ClassNotFoundException
{
Object cls = classMap.get(name);
if (cls == null)
throw new ClassNotFoundException(name);
return (Class) cls;
}
/** The handle returned by dlopen. */
gnu.gcj.RawData handler;
/** Map classnames to Classes. */
Hashtable classMap = new Hashtable(20);
}
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