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/*
* AbstractChunk.h
*****************************************************************************
* Copyright (C) 2012, bitmovin Softwareentwicklung OG, All Rights Reserved
*
* Email: libdash-dev@vicky.bitmovin.net
*
* This source code and its use and distribution, is subject to the terms
* and conditions of the applicable license agreement.
*****************************************************************************/
#ifndef ABSTRACTCHUNK_H_
#define ABSTRACTCHUNK_H_
#include "config.h"
#include "IDownloadableChunk.h"
#include "DownloadStateManager.h"
#include "../helpers/SyncedBlockStream.h"
#include "../portable/Networking.h"
#include <curl/curl.h>
#include "../metrics/HTTPTransaction.h"
#include "../metrics/TCPConnection.h"
#include "../metrics/ThroughputMeasurement.h"
#include "../helpers/Time.h"
#include <chrono>
namespace dash
{
namespace network
{
class AbstractChunk : public virtual IDownloadableChunk
{
public:
AbstractChunk ();
virtual ~AbstractChunk ();
/*
* Pure virtual IChunk Interface
*/
virtual std::string& AbsoluteURI () = 0;
virtual std::string& Host () = 0;
virtual size_t Port () = 0;
virtual std::string& Path () = 0;
virtual std::string& Range () = 0;
virtual size_t StartByte () = 0;
virtual size_t EndByte () = 0;
virtual bool HasByteRange () = 0;
virtual dash::metrics::HTTPTransactionType GetType() = 0;
/*
* IDownloadableChunk Interface
*/
virtual bool StartDownload (IConnection *connection);
virtual bool StartDownload ();
virtual void AbortDownload ();
virtual int Read (uint8_t *data, size_t len);
virtual int Peek (uint8_t *data, size_t len);
virtual int Peek (uint8_t *data, size_t len, size_t offset);
virtual void AttachDownloadObserver (IDownloadObserver *observer);
virtual void DetachDownloadObserver (IDownloadObserver *observer);
/*
* Observer Notification
*/
void NotifyDownloadRateChanged (double bitrate);
void NotifyDownloadTimeChanged (double dnltime);
/*
* IDASHMetrics
*/
const std::vector<dash::metrics::ITCPConnection *>& GetTCPConnectionList () const;
const std::vector<dash::metrics::IHTTPTransaction *>& GetHTTPTransactionList () const;
private:
std::vector<IDownloadObserver *> observers;
THREAD_HANDLE dlThread;
IConnection *connection;
helpers::SyncedBlockStream blockStream;
CURL *curl;
CURLM *curlm;
CURLcode response;
uint64_t bytesDownloaded;
DownloadStateManager stateManager;
std::vector<dash::metrics::TCPConnection *> tcpConnections;
std::vector<dash::metrics::HTTPTransaction *> httpTransactions;
static uint32_t BLOCKSIZE;
static void* DownloadExternalConnection (void *chunk);
static void* DownloadInternalConnection (void *chunk);
static size_t CurlResponseCallback (void *contents, size_t size, size_t nmemb, void *userp);
static size_t CurlHeaderCallback (void *headerData, size_t size, size_t nmemb, void *userdata);
static size_t CurlDebugCallback (CURL *url, curl_infotype infoType, char * data, size_t length, void *userdata);
void HandleHeaderOutCallback ();
void HandleHeaderInCallback (std::string data);
};
}
}
#endif /* ABSTRACTCHUNK_H_ */
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