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Optimize converting TCP endpoints to strings

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There may be quite a few endpoint names (one for each available network card), and they usually remain unchanged throughout the session, while previously producing such names was performed every time they were accessed. Now they are retrieved from the cache.

PR #21770.
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Vladimir Golovnev 2024-11-07 09:39:33 +03:00 committed by GitHub
parent 3da9444688
commit 4527536858
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1 changed files with 10 additions and 1 deletions
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11
src/base/bittorrent/torrentimpl.cpp
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@ -49,6 +49,7 @@
#include <QtSystemDetection>
#include <QByteArray>
#include <QCache>
#include <QDebug>
#include <QPointer>
#include <QSet>
@ -94,7 +95,15 @@ namespace
QString toString(const lt::tcp::endpoint &ltTCPEndpoint)
{
return QString::fromStdString((std::stringstream() << ltTCPEndpoint).str());
static QCache<lt::tcp::endpoint, QString> cache;
if (const QString *endpointName = cache.object(ltTCPEndpoint))
return *endpointName;
const std::string tmp = (std::ostringstream() << ltTCPEndpoint).str();
const auto endpointName = QString::fromLatin1(tmp.c_str(), tmp.size());
cache.insert(ltTCPEndpoint, new QString(endpointName));
return endpointName;
}
template <typename FromLTTimePoint32Func>