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Improve ratio calculation formula. Closes #3096.

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Chocobo1 2015-06-12 16:18:28 +08:00
parent 77786bb8bb
commit 2299580dc9
1 changed files with 8 additions and 23 deletions
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31
src/core/bittorrent/torrenthandle.cpp
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@ -1031,31 +1031,16 @@ qreal TorrentHandle::maxRatio(bool *usesGlobalRatio) const
qreal TorrentHandle::realRatio() const qreal TorrentHandle::realRatio() const
{ {
libt::size_type all_time_upload = m_nativeStatus.all_time_upload; libt::size_type upload = m_nativeStatus.all_time_upload;
libt::size_type all_time_download = m_nativeStatus.all_time_download; // special case for a seeder who lost its stats, also assume nobody will import a 99% done torrent
libt::size_type total_done = m_nativeStatus.total_done; libt::size_type download = (m_nativeStatus.all_time_download < m_nativeStatus.total_done * 0.01) ? m_nativeStatus.total_done : m_nativeStatus.all_time_download;
if (all_time_download < total_done) { if (download == 0)
// We have more data on disk than we downloaded return (upload == 0) ? 0.0 : MAX_RATIO;
// either because the user imported the file
// or because of crash the download history was lost.
// Otherwise will get weird ratios
// eg when downloaded 1KB and uploaded 700MB of a
// 700MB torrent.
all_time_download = total_done;
}
if (all_time_download == 0) { qreal ratio = upload / static_cast<qreal>(download);
if (all_time_upload == 0) return 0.0; Q_ASSERT(ratio >= 0.0);
else return MAX_RATIO + 1; return (ratio > MAX_RATIO) ? MAX_RATIO : ratio;
}
qreal ratio = all_time_upload / static_cast<qreal>(all_time_download);
Q_ASSERT(ratio >= 0.);
if (ratio > MAX_RATIO)
ratio = MAX_RATIO;
return ratio;
} }
int TorrentHandle::uploadPayloadRate() const int TorrentHandle::uploadPayloadRate() const