axmol/core/network/Downloader-curl.h

/****************************************************************************
 Copyright (c) 2015-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
 Copyright (c) 2021 Bytedance Inc.

 https://axmolengine.github.io/

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 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 ****************************************************************************/

#pragma once

#include <stdint.h>
#include "network/IDownloaderImpl.h"

NS_AX_BEGIN

class Scheduler;

namespace network
{
class DownloadTaskCURL;
class DownloaderHints;
class DownloaderCURL;

class DownloaderCURL : public IDownloaderImpl
{
public:
    DownloaderCURL(const DownloaderHints& hints);
    virtual ~DownloaderCURL();

    virtual void startTask(std::shared_ptr<DownloadTask>& task) override;

protected:
    class Impl;
    std::shared_ptr<Impl> _impl;

    // for transfer data on schedule
    DownloadTaskCURL* _currTask;  // temp ref
    std::function<int64_t(void*, int64_t)> _transferDataToBuffer;

    void _lazyScheduleUpdate();

    static void _updateTaskProgressInfo(DownloadTask& task, int64_t totalExpected = -1);

    // scheduler for update processing and finished task in main schedule
    void _onDownloadFinished(DownloadTask& task, int checkState = 0);

    // scheduler for update processing and finished task in main schedule
    void _onUpdate(float);
    std::string _schedulerKey;
    Scheduler* _scheduler = nullptr;
};

}  // namespace network
NS_AX_END  // namespace ax