8080225: FileInput/OutputStream/FileChannel cleanup should be improved
Reviewed-by: mchung, plevart, bpb
/*
* Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
*/
package sun.nio.ch; // Formerly in sun.misc
// ## In the fullness of time, this class will be eliminated
class AllocatedNativeObject // package-private
extends NativeObject
{
/**
* Allocates a memory area of at least {@code size} bytes outside of the
* Java heap and creates a native object for that area.
*
* @param size
* Number of bytes to allocate
*
* @param pageAligned
* If {@code true} then the area will be aligned on a hardware
* page boundary
*
* @throws OutOfMemoryError
* If the request cannot be satisfied
*/
AllocatedNativeObject(int size, boolean pageAligned) {
super(size, pageAligned);
}
/**
* Frees the native memory area associated with this object.
*/
synchronized void free() {
if (allocationAddress != 0) {
unsafe.freeMemory(allocationAddress);
allocationAddress = 0;
}
}
}