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Avoid redundant lookups in port forwarder

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Chocobo1 2022-10-18 23:47:05 +08:00
parent f2dd1e6456
commit 1a782a9362
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GPG Key ID: 210D9C873253A68C
2 changed files with 34 additions and 27 deletions
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59
src/base/bittorrent/portforwarderimpl.cpp
View File

@ -30,8 +30,6 @@
#include <libtorrent/session.hpp>
#include <QDebug>
#include "base/logger.h"
PortForwarderImpl::PortForwarderImpl(lt::session *provider, QObject *parent)
@ -55,61 +53,70 @@ bool PortForwarderImpl::isEnabled() const
void PortForwarderImpl::setEnabled(const bool enabled)
{
if (m_storeActive != enabled)
{
if (enabled)
start();
else
stop();
if (m_storeActive == enabled)
return;
m_storeActive = enabled;
}
if (enabled)
start();
else
stop();
m_storeActive = enabled;
}
void PortForwarderImpl::addPort(const quint16 port)
{
if (!m_mappedPorts.contains(port))
{
if (m_mappedPorts.contains(port))
return;
if (isEnabled())
m_mappedPorts.insert(port, m_provider->add_port_mapping(lt::session::tcp, port, port));
else
m_mappedPorts.insert(port, {});
if (isEnabled())
m_mappedPorts[port] = {m_provider->add_port_mapping(lt::session::tcp, port, port)};
}
}
void PortForwarderImpl::deletePort(const quint16 port)
{
if (m_mappedPorts.contains(port))
const auto iter = m_mappedPorts.find(port);
if (iter == m_mappedPorts.end())
return;
if (isEnabled())
{
if (isEnabled())
{
for (const lt::port_mapping_t &portMapping : m_mappedPorts[port])
for (const lt::port_mapping_t &portMapping : *iter)
m_provider->delete_port_mapping(portMapping);
}
m_mappedPorts.remove(port);
}
m_mappedPorts.erase(iter);
}
void PortForwarderImpl::start()
{
qDebug("Enabling UPnP / NAT-PMP");
lt::settings_pack settingsPack = m_provider->get_settings();
settingsPack.set_bool(lt::settings_pack::enable_upnp, true);
settingsPack.set_bool(lt::settings_pack::enable_natpmp, true);
m_provider->apply_settings(settingsPack);
for (auto i = m_mappedPorts.begin(); i != m_mappedPorts.end(); ++i)
for (auto iter = m_mappedPorts.begin(); iter != m_mappedPorts.end(); ++iter)
{
// quint16 port = i.key();
i.value() = {m_provider->add_port_mapping(lt::session::tcp, i.key(), i.key())};
Q_ASSERT(iter.value().empty());
const quint16 port = iter.key();
iter.value() = m_provider->add_port_mapping(lt::session::tcp, port, port);
}
LogMsg(tr("UPnP/NAT-PMP support: ON"), Log::INFO);
}
void PortForwarderImpl::stop()
{
qDebug("Disabling UPnP / NAT-PMP");
lt::settings_pack settingsPack = m_provider->get_settings();
settingsPack.set_bool(lt::settings_pack::enable_upnp, false);
settingsPack.set_bool(lt::settings_pack::enable_natpmp, false);
m_provider->apply_settings(settingsPack);
// don't clear m_mappedPorts so a later `start()` call can restore the port forwarding
for (auto iter = m_mappedPorts.begin(); iter != m_mappedPorts.end(); ++iter)
iter.value().clear();
LogMsg(tr("UPnP/NAT-PMP support: OFF"), Log::INFO);
}

2
src/base/bittorrent/portforwarderimpl.h
View File

@ -58,6 +58,6 @@ private:
void stop();
CachedSettingValue<bool> m_storeActive;
lt::session *m_provider = nullptr;
lt::session *const m_provider = nullptr;
QHash<quint16, std::vector<lt::port_mapping_t>> m_mappedPorts;
};