fix for -warning in cryptopp.cpp. add mutex to host iteration of peers for connect. only try to connect to as many peers as is necessary. update unit test.

libdevcrypto/CryptoPP.cpp

@@ -319,8 +319,7 @@ void Secp256k1::agree(Secret const& _s, Public const& _r, h256& o_s)
 	assert(d.AgreedValueLength() == sizeof(o_s));
 	byte remote[65] = {0x04};
 	memcpy(&remote[1], _r.data(), 64);
-	bool result = d.Agree(o_s.data(), _s.data(), remote);
-	assert(result);
+	d.Agree(o_s.data(), _s.data(), remote);
 }
 
 void Secp256k1::exportPublicKey(CryptoPP::DL_PublicKey_EC<CryptoPP::ECP> const& _k, Public& o_p)

libp2p/Host.cpp

@@ -550,14 +550,22 @@ void Host::run(boost::system::error_code const&)
 	// is always live and to ensure reputation and fallback timers are properly
 	// updated. // disconnectLatePeers();
 
-	if (peerCount() < m_idealPeerCount)
+	auto openSlots = m_idealPeerCount - peerCount();
+	if (openSlots > 0)
 	{
-		for (auto p: m_peers)
-			if (p.second->shouldReconnect())
-			{
-				connect(p.second);
+		list<shared_ptr<Peer>> toConnect;
+		{
+			RecursiveGuard l(x_sessions);
+			for (auto p: m_peers)
+				if (p.second->shouldReconnect())
+					toConnect.push_back(p.second);
+		}
+		
+		for (auto p: toConnect)
+			if (openSlots--)
+				connect(p);
+			else
 				break;
-			}
 		
 		m_nodeTable->discover();
 	}

test/peer.cpp

@@ -63,6 +63,7 @@ BOOST_AUTO_TEST_CASE(save_nodes)
 	for (auto i:{0,1,2,3,4,5})
 	{
 		Host* h = new Host("Test", NetworkPreferences(30300 + i, "127.0.0.1", true, true));
+		h->setIdealPeerCount(10);
 		// starting host is required so listenport is available
 		h->start();
 		while (!h->isStarted())