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Reserve memory for file data buffers

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Chocobo1
2019-10-27 21:37:23 +08:00
parent c73d698718
commit e262b86c44
2 changed files with 8 additions and 3 deletions
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10
src/base/bittorrent/torrenthandle.cpp
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@@ -1581,11 +1581,15 @@ bool TorrentHandle::saveTorrentFile(const QString &path)
#endif
const lt::entry torrentEntry = torrentCreator.generate();
QVector<char> out;
QByteArray out;
out.reserve(1024 * 1024); // most torrent file sizes are under 1 MB
lt::bencode(std::back_inserter(out), torrentEntry);
if (out.isEmpty())
return false;
QFile torrentFile(path);
if (!out.empty() && torrentFile.open(QIODevice::WriteOnly))
return (torrentFile.write(&out[0], out.size()) == out.size());
if (torrentFile.open(QIODevice::WriteOnly))
return (torrentFile.write(out) == out.size());
return false;
}