mythsingledownload.h

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#ifndef MYTH_SINGLE_DOWNLOAD_H
#define MYTH_SINGLE_DOWNLOAD_H
 
//#include <QObject>
#include <QString>
#include <QByteArray>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QMutex>
#include <QTimer>
#include <QEventLoop>
 
#include "mythbaseexp.h"
 
using namespace std::chrono_literals;
 
/*
 * MythDownloadManager leaks memory.  For things like the HLS
 * recorder, this leads to aborts in mythbackend when all the memory
 * is exhausted.  Until the leak can be found in MythDownloadManager,
 * avoid the issue by using MythSingleDownload instead.
 */
 
class MBASE_PUBLIC MythSingleDownload : public QObject
{
   Q_OBJECT
 
  public:
   MythSingleDownload(void) = default;
   ~MythSingleDownload(void) override = default;
 
   bool DownloadURL(const QUrl &url, QByteArray *buffer, std::chrono::seconds timeout = 30s,
                    uint redirs = 0, qint64 maxsize = 0, QString *final_url = nullptr);
   void Cancel(void);
   QString ErrorString(void) const { return m_errorstring; }
   QNetworkReply::NetworkError ErrorCode(void) const { return m_errorcode; }
 
  private slots:
      void Progress(qint64 bytesRead, qint64 totalBytes);
 
  private:
    QNetworkAccessManager m_mgr;
    QTimer                m_timer;
    QNetworkReply        *m_reply           {nullptr};
    QMutex                m_lock;
    QMutex                m_replylock;
 
    QString               m_errorstring;
    QNetworkReply::NetworkError m_errorcode {QNetworkReply::NoError};
    QByteArray           *m_buffer          {nullptr};
    qint64                m_maxsize         {0};
};
 
#endif // MYTH_SINGLE_DOWNLOAD_H