com.alibaba.rocketmq.shade.io.netty.buffer.PoolSubpageMetric Maven / Gradle / Ivy
/*
* Copyright 2015 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:
*
* http://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;
/**
* Metrics for a sub-page.
*/
public interface PoolSubpageMetric {
/**
* Return the number of maximal elements that can be allocated out of the sub-page.
*/
int maxNumElements();
/**
* Return the number of available elements to be allocated.
*/
int numAvailable();
/**
* Return the size (in bytes) of the elements that will be allocated.
*/
int elementSize();
/**
* Return the size (in bytes) of this page.
*/
int pageSize();
}