/*
* $Id$
*
* Copyright (C) 2003-2015 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package java.io;
import org.jnode.vm.VmSystem;
/**
* @see java.io.ObjectInputStream
* @author Levente S\u00e1ntha
*/
class NativeObjectInputStream {
/**
* @see java.io.ObjectInputStream#bytesToFloats(byte[], int, float[], int, int)
*/
private static void bytesToFloats(byte[] src, int srcpos, float[] dst, int dstpos, int nfloats) {
if (src == null) throw new NullPointerException();
if (dst == null) throw new NullPointerException();
int dstend = dstpos + nfloats;
while (dstpos < dstend) {
int ival =
((src[srcpos ++ ] & 0xff) << 24) +
((src[srcpos ++ ] & 0xff) << 16) +
((src[srcpos ++ ] & 0xff) << 8) +
((src[srcpos ++ ] & 0xff) );
dst[dstpos ++ ] = Float.intBitsToFloat(ival);
}
}
/**
* @see java.io.ObjectInputStream#bytesToDoubles(byte[], int, double[], int, int)
*/
private static void bytesToDoubles(byte[] src, int srcpos, double[] dst, int dstpos, int ndoubles) {
if (src == null) throw new NullPointerException();
if (dst == null) throw new NullPointerException();
int dstend = dstpos + ndoubles;
while (dstpos < dstend) {
long lval =
((src[srcpos ++ ] & 0xffL) << 56) +
((src[srcpos ++ ] & 0xffL) << 48) +
((src[srcpos ++ ] & 0xffL) << 40) +
((src[srcpos ++ ] & 0xffL) << 32) +
((src[srcpos ++ ] & 0xffL) << 24) +
((src[srcpos ++ ] & 0xffL) << 16) +
((src[srcpos ++ ] & 0xffL) << 8) +
((src[srcpos ++ ] & 0xffL) );
dst[dstpos ++ ] = Double.longBitsToDouble(lval);
}
}
/**
* @see java.io.ObjectInputStream#latestUserDefinedLoader()
*/
private static ClassLoader latestUserDefinedLoader() {
Class<?>[] ctx = VmSystem.getClassContext();
for(int i = 0; i < ctx.length; i++){
Class<?> c = ctx[i];
if(!sun.reflect.MethodAccessor.class.isAssignableFrom(c) &&
!sun.reflect.ConstructorAccessor.class.isAssignableFrom(c)) {
return c.getClassLoader();
}
}
return null;
}
}