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PieceSelection.cpp
90 lines (75 loc) · 1.84 KB
/
PieceSelection.cpp
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#include <sstream>
#include <deque>
#include <vector>
#include <unordered_map>
#include <ctime>
#include <set>
#include <iostream>
#include <string>
#include <assert.h>
#include <memory>
#include <thread>
#include <mutex>
#include <boost/asio.hpp>
#include "ASIOThreadPool.h"
#include "ASIOPeerMessage.h"
#include "ASIOPeerComm.h"
#include "Log.h"
#include "Timer.h"
#include "BandwidthTracker.h"
#include "Filesystem.h"
#include "StringFacility.h"
#include "BinaryString.h"
#include "HTTPServe.h"
#include "HTTP.h"
#include "BencodeTokenizer.h"
#include "BencodeParser.h"
#include "MetadataFile.h"
#include "Piece.h"
#include "Peer.h"
#include "PieceSelection.h"
namespace TorrentStream
{
PieceSelectionStrategyRandom::PieceSelectionStrategyRandom(size_t pieceCount, size_t pieceLength, size_t pieceStart, size_t pieceEnd) : m_PieceCount(pieceCount), m_PieceLength(pieceLength)
{
for (auto i = pieceStart; i <= pieceEnd; i++)
{
m_PendingPieces.push_back(i);
}
}
void PieceSelectionStrategyRandom::Update()
{
}
bool PieceSelectionStrategyRandom::HasPendingPieces()
{
return m_PendingPieces.size() > 0;
}
size_t PieceSelectionStrategyRandom::Select()
{
auto rnd = std::rand() % m_PendingPieces.size();
auto index = m_PendingPieces[rnd];
m_PendingPieces.erase(m_PendingPieces.begin() + rnd);
return index;
}
void PieceSelectionStrategyRandom::Return(size_t index)
{
m_PendingPieces.push_back(index);
}
size_t PieceSelectionStrategyRandom::GetPieceCount()
{
return m_PieceCount;
}
size_t PieceSelectionStrategyRandom::GetCompletePieceCount()
{
return m_CompletePieces.size();
}
size_t PieceSelectionStrategyRandom::GetPieceLength()
{
return m_PieceLength;
}
void PieceSelectionStrategyRandom::NotifyPieceComplete(size_t index)
{
m_BandwidthTracker.AddSample(m_PieceLength);
m_CompletePieces.push_back(index);
}
}