37 lines
1.6 KiB
Java
37 lines
1.6 KiB
Java
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/*
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* Copyright 2020 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.buffer.b2;
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/**
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* Methods for accessing and controlling the internals of an allocator.
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* This interface is intended to be used by implementors of the {@link Allocator}, {@link Buf} and
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* {@link MemoryManager} interfaces.
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*/
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public interface AllocatorControl {
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/**
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* Allocate a buffer that is not tethered to any particular {@link Drop} implementation,
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* and return the recoverable memory object from it.
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* <p>
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* This allows a buffer to implement {@link Buf#ensureWritable(int)} by having new memory allocated to it,
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* without that memory being attached to some other lifetime.
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*
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* @param originator The buffer that originated the request for an untethered memory allocated.
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* @param size The size of the requested memory allocation, in bytes.
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* @return A "recoverable memory" object that is the requested allocation.
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*/
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Object allocateUntethered(Buf originator, int size);
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}
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