From 2b4490d8a7083dd835d74bb72d1535125415dba9 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Mon, 27 Jan 2020 03:49:49 +0800
Subject: [PATCH] Use faster hash function

qHash(QString) will need to hash/loop through all the data while the new
code will only need one memcpy() and a few bit manipulations.
---
 src/base/bittorrent/infohash.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/base/bittorrent/infohash.cpp b/src/base/bittorrent/infohash.cpp
index 122d4e88f..e050efbb8 100644
--- a/src/base/bittorrent/infohash.cpp
+++ b/src/base/bittorrent/infohash.cpp
@@ -89,5 +89,9 @@ bool BitTorrent::operator!=(const InfoHash &left, const InfoHash &right)
 
 uint BitTorrent::qHash(const InfoHash &key, const uint seed)
 {
+#if (LIBTORRENT_VERSION_NUM < 10200)
     return ::qHash(static_cast<QString>(key), seed);
+#else
+    return ::qHash((std::hash<lt::sha1_hash> {})(key), seed);
+#endif
 }