f83e7fa618
Motivation: There are many use cases where other objects will have fields that are buffers. Since buffers are reference counted, their life cycle needs to be managed carefully. Modification: Add the abstract BufHolder, and the concrete sub-class BufRef, as neat building blocks for building other classes that contain field references to buffers. The behaviours of closed/sent buffers have also been specified in tests, and tightened up in the code. Result: It is now easier to create classes/objects that wrap buffers.
71 lines
2.2 KiB
Java
71 lines
2.2 KiB
Java
/*
|
|
* Copyright 2020 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.netty.buffer.api;
|
|
|
|
import org.junit.jupiter.api.Test;
|
|
|
|
import java.util.ArrayList;
|
|
|
|
import static org.junit.jupiter.api.Assertions.assertEquals;
|
|
import static org.junit.jupiter.api.Assertions.assertFalse;
|
|
import static org.junit.jupiter.api.Assertions.assertTrue;
|
|
|
|
public class ScopeTest {
|
|
@Test
|
|
void scopeMustCloseContainedRcsInReverseInsertOrder() {
|
|
ArrayList<Integer> closeOrder = new ArrayList<>();
|
|
try (Scope scope = new Scope()) {
|
|
scope.add(new SomeRc(new OrderingDrop(1, closeOrder)));
|
|
scope.add(new SomeRc(new OrderingDrop(2, closeOrder)));
|
|
scope.add(new SomeRc(new OrderingDrop(3, closeOrder)));
|
|
}
|
|
var itr = closeOrder.iterator();
|
|
assertTrue(itr.hasNext());
|
|
assertEquals(3, (int) itr.next());
|
|
assertTrue(itr.hasNext());
|
|
assertEquals(2, (int) itr.next());
|
|
assertTrue(itr.hasNext());
|
|
assertEquals(1, (int) itr.next());
|
|
assertFalse(itr.hasNext());
|
|
}
|
|
|
|
private static final class SomeRc extends RcSupport<SomeRc, SomeRc> {
|
|
SomeRc(Drop<SomeRc> drop) {
|
|
super(drop);
|
|
}
|
|
|
|
@Override
|
|
protected Owned<SomeRc> prepareSend() {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private static final class OrderingDrop implements Drop<SomeRc> {
|
|
private final int order;
|
|
private final ArrayList<Integer> list;
|
|
|
|
private OrderingDrop(int order, ArrayList<Integer> list) {
|
|
this.order = order;
|
|
this.list = list;
|
|
}
|
|
|
|
@Override
|
|
public void drop(SomeRc obj) {
|
|
list.add(order);
|
|
}
|
|
}
|
|
}
|