android_multiviewwer/app/src/main/cpp/Preloader.h

#pragma once

#include "MediaAsset.h"
#include <string>
#include <mutex>
#include <atomic>
#include <thread>

class Preloader {
public:
    Preloader();
    ~Preloader();
    void startNextPreload(int fd); // [수정] string -> int
    bool isPreloadedDataReady() const;
    bool hasPreloadFailed() const;
    MediaAsset swapAndRelease();
    void setPreloadedMedia(MediaAsset&& media);
    void releasePreloadedData();

private:
    std::mutex preloadMutex_;
    MediaAsset nextMedia_;
    std::atomic<bool> dataReady_;
    std::atomic<bool> preloadFailed_;
};