From 472dd96716538ad64d8d347110f86e03be5687a7 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Fri, 29 May 2020 13:48:43 +0800
Subject: [PATCH] Cache country lookup result in PeerInfo class

The country lookup happens quite often when "Resolve peer countries"
option is enabled.
---
 src/base/bittorrent/peerinfo.cpp | 4 +++-
 src/base/bittorrent/peerinfo.h   | 4 ++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/base/bittorrent/peerinfo.cpp b/src/base/bittorrent/peerinfo.cpp
index 21c13a0ff..5e07955e7 100644
--- a/src/base/bittorrent/peerinfo.cpp
+++ b/src/base/bittorrent/peerinfo.cpp
@@ -64,7 +64,9 @@ bool PeerInfo::fromLSD() const
 #ifndef DISABLE_COUNTRIES_RESOLUTION
 QString PeerInfo::country() const
 {
-    return Net::GeoIPManager::instance()->lookup(address().ip);
+    if (m_country.isEmpty())
+        m_country = Net::GeoIPManager::instance()->lookup(address().ip);
+    return m_country;
 }
 #endif
 
diff --git a/src/base/bittorrent/peerinfo.h b/src/base/bittorrent/peerinfo.h
index 328cabf4c..251f161b2 100644
--- a/src/base/bittorrent/peerinfo.h
+++ b/src/base/bittorrent/peerinfo.h
@@ -102,6 +102,10 @@ namespace BitTorrent
         qreal m_relevance = 0;
         QString m_flags;
         QString m_flagsDescription;
+
+#ifndef DISABLE_COUNTRIES_RESOLUTION
+        mutable QString m_country;
+#endif
     };
 }