/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2021-2023. All rights reserved.
 * Description: Buffer manager
 * Author: Hisilicon
 * Created: 2021.04.16
 */

#ifndef IMAGEKIT_IMAGE_BUF_H
#define IMAGEKIT_IMAGE_BUF_H

#include <cstdint>
#include <memory>
#include <mutex>
#include <vector>
#include <set>
#include <list>

#include "ImageDefs.h"

namespace PhoenixImage {
class BufHolderImpl;
class BufSlotCore;

class BufHolder {
public:
    /**
     * @brief BufHolder constructor.
     */
    BufHolder();

    /**
     * @brief BufHolder destructor.
     */
    ~BufHolder();

    /**
     * @brief PutBuf will send the colorBuf to proper slot.
     */
    int32_t PutBuf(const ImageColorBuffer &colorBuf, int32_t fenceFd);

    /**
     * @brief GetBuf returns the next buffer slot index for produccer to use.
     */
    int32_t GetBuf(ImageColorBuffer *colorBuf, int32_t *outFenceFd, uint64_t *outBufferAge);

    /**
     * @brief ClearFreedBuf will free out of use buffer.
     */
    int32_t ClearFreedBuf();

    /**
     * @brief get bufSlotCore pointer.
     */
    std::shared_ptr<BufSlotCore> &GetBufSlotCore();

private:
    std::unique_ptr<BufHolderImpl> pImpl_;
};
}

#endif