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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed 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 org.mozilla.thirdparty.com.google.android.exoplayer2.upstream;
/**
* A source of allocations.
*/
public interface Allocator {
/**
* Obtain an {@link Allocation}.
* <p>
* When the caller has finished with the {@link Allocation}, it should be returned by calling
* {@link #release(Allocation)}.
*
* @return The {@link Allocation}.
*/
Allocation allocate();
/**
* Releases an {@link Allocation} back to the allocator.
*
* @param allocation The {@link Allocation} being released.
*/
void release(Allocation allocation);
/**
* Releases an array of {@link Allocation}s back to the allocator.
*
* @param allocations The array of {@link Allocation}s being released.
*/
void release(Allocation[] allocations);
/**
* Hints to the allocator that it should make a best effort to release any excess
* {@link Allocation}s.
*/
void trim();
/**
* Returns the total number of bytes currently allocated.
*/
int getTotalBytesAllocated();
/**
* Returns the length of each individual {@link Allocation}.
*/
int getIndividualAllocationLength();
}
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