netty-incubator-buffer-api/src/main/java/io/netty/buffer/api/MemoryManager.java
Chris Vest c73dd07384 UnsafeBuffer implementation, based on sun.misc.Unsafe
Motivation:
When Unsafe is available, we can supposedly do certain things faster than when it is not.

Modification:
Add a Buffer implementation that take advantage of sun.misc.Unsafe.
It has not yet been verified if this is faster in any way than, say the ByteBuffer implementation or the MemorySegment implementation.

Result:
Another Buffer implementation that can be used when Unsafe is available.
2021-04-08 14:44:58 +02:00

32 lines
1.2 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 io.netty.buffer.api.memseg.HeapMemorySegmentManager;
import io.netty.buffer.api.memseg.NativeMemorySegmentManager;
import java.lang.ref.Cleaner;
public interface MemoryManager {
boolean isNative();
Buffer allocateShared(AllocatorControl allocatorControl, long size, Drop<Buffer> drop, Cleaner cleaner);
Drop<Buffer> drop();
Object unwrapRecoverableMemory(Buffer buf);
int capacityOfRecoverableMemory(Object memory);
// todo should recoverMemory re-attach a cleaner?
Buffer recoverMemory(AllocatorControl allocatorControl, Object recoverableMemory, Drop<Buffer> drop);
}