From ede296475ba17ac70a2990cd5f225108f6ab1bfc Mon Sep 17 00:00:00 2001
From: JoelKatz <DavidJoelSchwartz@GMail.com>
Date: Wed, 2 May 2012 02:57:41 -0700
Subject: [PATCH] Track a peer's last closed ledger.

---
 src/Peer.cpp | 13 +++++++++----
 src/Peer.h   | 16 ++++++++++------
 2 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/src/Peer.cpp b/src/Peer.cpp
index dbf3f0ba0..e257679af 100644
--- a/src/Peer.cpp
+++ b/src/Peer.cpp
@@ -523,6 +523,12 @@ void Peer::recvHello(newcoin::TMHello& packet)
 		// XXX Set timer: connection is in grace period to be useful.
 		// XXX Set timer: connection idle (idle may vary depending on connection type.)
 
+		if ((packet.has_closedledger()) && (packet.closedledger().size() == (256 / 8)))
+		{
+			memcpy(mClosedLedgerHash.begin(), packet.closedledger().data(), (256 / 8));
+			mClosedLedgerTime = boost::posix_time::second_clock::universal_time();
+		}
+
 		bDetach	= false;
 	}
 
@@ -775,11 +781,10 @@ void Peer::sendHello()
 
 	Ledger::pointer closedLedger = theApp->getMasterLedger().getClosedLedger();
 	assert(closedLedger && closedLedger->isClosed());
-	if(closedLedger->isClosed())
+	if (closedLedger->isClosed())
 	{
-		Serializer s(128);
-		closedLedger->addRaw(s);
-		h->set_closedledger(s.getDataPtr(), s.getLength());
+		uint256 hash = closedLedger->getHash();
+		h->set_closedledger(hash.begin(), hash.GetSerializeSize());
 	}
 
 	PackedMessage::pointer packet = boost::make_shared<PackedMessage>
diff --git a/src/Peer.h b/src/Peer.h
index 87a517c55..5bf424061 100644
--- a/src/Peer.h
+++ b/src/Peer.h
@@ -15,9 +15,9 @@
 
 enum PeerPunish
 {
-	PP_INVALID_REQUEST=1,	// The peer sent a request that makes no sense
-	PP_UNKNOWN_REQUEST=2,	// The peer sent a request that might be garbage
-	PP_UNWANTED_DATA=3,		// The peer sent us data we didn't want/need
+	PP_INVALID_REQUEST = 1,	// The peer sent a request that makes no sense
+	PP_UNKNOWN_REQUEST = 2,	// The peer sent a request that might be garbage
+	PP_UNWANTED_DATA = 3,		// The peer sent us data we didn't want/need
 };
 
 typedef std::pair<std::string,int> ipPort;
@@ -25,8 +25,8 @@ typedef std::pair<std::string,int> ipPort;
 class Peer : public boost::enable_shared_from_this<Peer>
 {
 public:
-	static const int psbGotHello=0, psbSentHello=1, psbInMap=2, psbTrusted=3;
-	static const int psbNoLedgers=4, psbNoTransactions=5, psbDownLevel=6;
+	static const int psbGotHello = 0, psbSentHello = 1, psbInMap = 2, psbTrusted = 3;
+	static const int psbNoLedgers = 4, psbNoTransactions = 5, psbDownLevel = 6;
 
 	void			handleConnect(const boost::system::error_code& error, boost::asio::ip::tcp::resolver::iterator it);
 
@@ -36,7 +36,11 @@ private:
 	ipPort			mIpPort;
 	uint256			mCookieHash;
 
-    boost::asio::ssl::stream<boost::asio::ip::tcp::socket>		mSocketSsl;
+	// network state information
+	uint256						mClosedLedgerHash;
+	boost::posix_time::ptime	mClosedLedgerTime;
+
+	boost::asio::ssl::stream<boost::asio::ip::tcp::socket>		mSocketSsl;
 
 	boost::asio::deadline_timer									mVerifyTimer;