preparemulti_p.h

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*
* This file contains private API, this might break at any time between releases.
* You have been warned!
*
*/
#ifndef ZYPP_CURL_NG_NETWORK_PRIVATE_DOWNLOADERSTATES_PREPAREMULTI_P_H_INCLUDED
#define ZYPP_CURL_NG_NETWORK_PRIVATE_DOWNLOADERSTATES_PREPAREMULTI_P_H_INCLUDED
 
#include "base_p.h"
#include <zypp-core/zyppng/base/statemachine.h>
 
#include <zypp-curl/parser/MediaBlockList>
 
namespace zyppng {
 
  struct DlNormalFileState;
  struct DlMetalinkState;
  struct FinishedState;
 
#if ENABLE_ZCHUNK_COMPRESSION
  struct DLZckHeadState;
#endif
 
  struct PrepareMultiState : public zyppng::SimpleState< DownloadPrivate, Download::PrepareMulti, false > {
 
    using Request = DownloadPrivateBase::Request;
 
    enum Mode {
      Zsync,
      Metalink
    };
 
    PrepareMultiState ( std::shared_ptr<Request> oldReq, Mode m, DownloadPrivate &parent );
 
    void enter ();
    void exit ();
 
    const NetworkRequestError &error () const {
      return _error;
    }
 
    SignalProxy< void () > sigFinished() {
      return _sigFinished;
    }
    SignalProxy< void () > sigFailed() {
      return _sigFailed;
    }
    SignalProxy< void () > sigFallback() {
      return _sigFallback;
    }
 
    std::shared_ptr<DlNormalFileState>  fallbackToNormalTransition ();
    std::shared_ptr<DlMetalinkState>    transitionToMetalinkDl ();
    std::shared_ptr<FinishedState>      transitionToFinished ();
#if ENABLE_ZCHUNK_COMPRESSION
    std::shared_ptr<DLZckHeadState>     transitionToZckHeadDl ();
    bool toZckHeadDownloadGuard () const;
#endif
 
    bool toMetalinkDownloadGuard () const;
 
    std::vector<Url> _mirrors;
    zypp::media::MediaBlockList _blockList;
 
  private:
    sigc::connection _mirrorControlReadyConn;
 
    void onMirrorsReady ();
#if ENABLE_ZCHUNK_COMPRESSION
    bool _haveZckData = false; //< do we have zck data ready
#endif
    Mode _mode; //< wether we should expect a metalink or zsync file
    std::shared_ptr<Request> _oldRequest; //< exising request of previous states, that the next states might reuse
    NetworkRequestError _error;
    Signal< void () > _sigFinished;
    Signal< void () > _sigFallback;
    Signal< void () > _sigFailed;
  };
 
}
 
#endif