netty5/buffer/src/main/java/io/net5/buffer/SimpleLeakAwareCompositeByt...

127 lines
3.7 KiB
Java

/*
* Copyright 2016 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.net5.buffer;
import static java.util.Objects.requireNonNull;
import io.net5.util.ResourceLeakTracker;
import java.nio.ByteOrder;
class SimpleLeakAwareCompositeByteBuf extends WrappedCompositeByteBuf {
final ResourceLeakTracker<ByteBuf> leak;
SimpleLeakAwareCompositeByteBuf(CompositeByteBuf wrapped, ResourceLeakTracker<ByteBuf> leak) {
super(wrapped);
this.leak = requireNonNull(leak, "leak");
}
@Override
public boolean release() {
// Call unwrap() before just in case that super.release() will change the ByteBuf instance that is returned
// by unwrap().
ByteBuf unwrapped = unwrap();
if (super.release()) {
closeLeak(unwrapped);
return true;
}
return false;
}
@Override
public boolean release(int decrement) {
// Call unwrap() before just in case that super.release() will change the ByteBuf instance that is returned
// by unwrap().
ByteBuf unwrapped = unwrap();
if (super.release(decrement)) {
closeLeak(unwrapped);
return true;
}
return false;
}
private void closeLeak(ByteBuf trackedByteBuf) {
// Close the ResourceLeakTracker with the tracked ByteBuf as argument. This must be the same that was used when
// calling DefaultResourceLeak.track(...).
boolean closed = leak.close(trackedByteBuf);
assert closed;
}
@Override
public ByteBuf order(ByteOrder endianness) {
if (order() == endianness) {
return this;
} else {
return newLeakAwareByteBuf(super.order(endianness));
}
}
@Override
public ByteBuf slice() {
return newLeakAwareByteBuf(super.slice());
}
@Override
public ByteBuf retainedSlice() {
return newLeakAwareByteBuf(super.retainedSlice());
}
@Override
public ByteBuf slice(int index, int length) {
return newLeakAwareByteBuf(super.slice(index, length));
}
@Override
public ByteBuf retainedSlice(int index, int length) {
return newLeakAwareByteBuf(super.retainedSlice(index, length));
}
@Override
public ByteBuf duplicate() {
return newLeakAwareByteBuf(super.duplicate());
}
@Override
public ByteBuf retainedDuplicate() {
return newLeakAwareByteBuf(super.retainedDuplicate());
}
@Override
public ByteBuf readSlice(int length) {
return newLeakAwareByteBuf(super.readSlice(length));
}
@Override
public ByteBuf readRetainedSlice(int length) {
return newLeakAwareByteBuf(super.readRetainedSlice(length));
}
@Override
public ByteBuf asReadOnly() {
return newLeakAwareByteBuf(super.asReadOnly());
}
private SimpleLeakAwareByteBuf newLeakAwareByteBuf(ByteBuf wrapped) {
return newLeakAwareByteBuf(wrapped, unwrap(), leak);
}
protected SimpleLeakAwareByteBuf newLeakAwareByteBuf(
ByteBuf wrapped, ByteBuf trackedByteBuf, ResourceLeakTracker<ByteBuf> leakTracker) {
return new SimpleLeakAwareByteBuf(wrapped, trackedByteBuf, leakTracker);
}
}