RingBuffer.h

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/*******************************************************************************
 * Copyright 2009-2021 Jörg Müller
 *
 * 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.
 ******************************************************************************/
 
#pragma once
 
#include "Audaspace.h"
#include "Buffer.h"
 
#include <cstddef>
 
AUD_NAMESPACE_BEGIN
 
class AUD_API RingBuffer
{
private:
    Buffer m_buffer;
 
    volatile size_t m_read;
 
    volatile size_t m_write;
 
    // delete copy constructor and operator=
    RingBuffer(const RingBuffer&) = delete;
    RingBuffer& operator=(const RingBuffer&) = delete;
 
public:
    RingBuffer(int size = 0);
 
    sample_t* getBuffer() const;
 
    int getSize() const;
 
    size_t getReadSize() const;
 
    size_t getWriteSize() const;
 
    size_t read(data_t* target, size_t size);
 
    size_t write(data_t* source, size_t size);
 
    void clear();
 
    void reset();
 
    void resize(int size);
 
    void assureSize(int size);
};
 
AUD_NAMESPACE_END