From 4d8993b3469915d8c9ba4cd3b918f16782edf0de Mon Sep 17 00:00:00 2001
From: Gregory Maxwell <greg@xiph.org>
Date: Sat, 21 May 2016 09:45:32 +0000
Subject: Defer inserting into maprelay until just before relaying.

This reduces the rate of not founds by better matching the far
 end expectations, it also improves privacy by removing the
 ability to use getdata to probe for a node having a txn before
 it has been relayed.
---
 src/net.cpp | 15 ---------------
 1 file changed, 15 deletions(-)

(limited to 'src/net.cpp')

diff --git a/src/net.cpp b/src/net.cpp
index 78a914ebd..c09e3aedb 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -90,9 +90,6 @@ std::string strSubVersion;
 
 std::vector<CNode*> vNodes;
 CCriticalSection cs_vNodes;
-std::map<uint256, CTransaction> mapRelay;
-std::deque<std::pair<int64_t, uint256> > vRelayExpiration;
-CCriticalSection cs_mapRelay;
 limitedmap<uint256, int64_t> mapAlreadyAskedFor(MAX_INV_SZ);
 
 static std::deque<std::string> vOneShots;
@@ -2081,18 +2078,6 @@ instance_of_cnetcleanup;
 void RelayTransaction(const CTransaction& tx)
 {
     CInv inv(MSG_TX, tx.GetHash());
-    {
-        LOCK(cs_mapRelay);
-        // Expire old relay messages
-        while (!vRelayExpiration.empty() && vRelayExpiration.front().first < GetTime())
-        {
-            mapRelay.erase(vRelayExpiration.front().second);
-            vRelayExpiration.pop_front();
-        }
-
-        mapRelay.insert(std::make_pair(inv.hash, tx));
-        vRelayExpiration.push_back(std::make_pair(GetTime() + 15 * 60, inv.hash));
-    }
     LOCK(cs_vNodes);
     BOOST_FOREACH(CNode* pnode, vNodes)
     {
-- 
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