From 651480c8e453e7df9d735f684e6a3e368c777ac0 Mon Sep 17 00:00:00 2001 From: "Wladimir J. van der Laan" Date: Thu, 21 Aug 2014 05:17:21 +0200 Subject: move functions in main and net to implementation files --- src/net.cpp | 154 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) (limited to 'src/net.cpp') diff --git a/src/net.cpp b/src/net.cpp index cae9b70da7..440c271a5e 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -2037,3 +2037,157 @@ bool CAddrDB::Read(CAddrMan& addr) return true; } + +unsigned int ReceiveFloodSize() { return 1000*GetArg("-maxreceivebuffer", 5*1000); } +unsigned int SendBufferSize() { return 1000*GetArg("-maxsendbuffer", 1*1000); } + +CNode::CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn, bool fInboundIn) : ssSend(SER_NETWORK, INIT_PROTO_VERSION), setAddrKnown(5000) +{ + nServices = 0; + hSocket = hSocketIn; + nRecvVersion = INIT_PROTO_VERSION; + nLastSend = 0; + nLastRecv = 0; + nSendBytes = 0; + nRecvBytes = 0; + nTimeConnected = GetTime(); + addr = addrIn; + addrName = addrNameIn == "" ? addr.ToStringIPPort() : addrNameIn; + nVersion = 0; + strSubVer = ""; + fWhitelisted = false; + fOneShot = false; + fClient = false; // set by version message + fInbound = fInboundIn; + fNetworkNode = false; + fSuccessfullyConnected = false; + fDisconnect = false; + nRefCount = 0; + nSendSize = 0; + nSendOffset = 0; + hashContinue = 0; + pindexLastGetBlocksBegin = 0; + hashLastGetBlocksEnd = 0; + nStartingHeight = -1; + fStartSync = false; + fGetAddr = false; + fRelayTxes = false; + setInventoryKnown.max_size(SendBufferSize() / 1000); + pfilter = new CBloomFilter(); + nPingNonceSent = 0; + nPingUsecStart = 0; + nPingUsecTime = 0; + fPingQueued = false; + + { + LOCK(cs_nLastNodeId); + id = nLastNodeId++; + } + + if (fLogIPs) + LogPrint("net", "Added connection to %s peer=%d\n", addrName, id); + else + LogPrint("net", "Added connection peer=%d\n", id); + + // Be shy and don't send version until we hear + if (hSocket != INVALID_SOCKET && !fInbound) + PushVersion(); + + GetNodeSignals().InitializeNode(GetId(), this); +} + +CNode::~CNode() +{ + CloseSocket(hSocket); + + if (pfilter) + delete pfilter; + + GetNodeSignals().FinalizeNode(GetId()); +} + +void CNode::AskFor(const CInv& inv) +{ + // We're using mapAskFor as a priority queue, + // the key is the earliest time the request can be sent + int64_t nRequestTime; + limitedmap::const_iterator it = mapAlreadyAskedFor.find(inv); + if (it != mapAlreadyAskedFor.end()) + nRequestTime = it->second; + else + nRequestTime = 0; + LogPrint("net", "askfor %s %d (%s) peer=%d\n", inv.ToString(), nRequestTime, DateTimeStrFormat("%H:%M:%S", nRequestTime/1000000).c_str(), id); + + // Make sure not to reuse time indexes to keep things in the same order + int64_t nNow = GetTimeMicros() - 1000000; + static int64_t nLastTime; + ++nLastTime; + nNow = std::max(nNow, nLastTime); + nLastTime = nNow; + + // Each retry is 2 minutes after the last + nRequestTime = std::max(nRequestTime + 2 * 60 * 1000000, nNow); + if (it != mapAlreadyAskedFor.end()) + mapAlreadyAskedFor.update(it, nRequestTime); + else + mapAlreadyAskedFor.insert(std::make_pair(inv, nRequestTime)); + mapAskFor.insert(std::make_pair(nRequestTime, inv)); +} + +void CNode::BeginMessage(const char* pszCommand) EXCLUSIVE_LOCK_FUNCTION(cs_vSend) +{ + ENTER_CRITICAL_SECTION(cs_vSend); + assert(ssSend.size() == 0); + ssSend << CMessageHeader(pszCommand, 0); + LogPrint("net", "sending: %s ", pszCommand); +} + +void CNode::AbortMessage() UNLOCK_FUNCTION(cs_vSend) +{ + ssSend.clear(); + + LEAVE_CRITICAL_SECTION(cs_vSend); + + LogPrint("net", "(aborted)\n"); +} + +void CNode::EndMessage() UNLOCK_FUNCTION(cs_vSend) +{ + // The -*messagestest options are intentionally not documented in the help message, + // since they are only used during development to debug the networking code and are + // not intended for end-users. + if (mapArgs.count("-dropmessagestest") && GetRand(GetArg("-dropmessagestest", 2)) == 0) + { + LogPrint("net", "dropmessages DROPPING SEND MESSAGE\n"); + AbortMessage(); + return; + } + if (mapArgs.count("-fuzzmessagestest")) + Fuzz(GetArg("-fuzzmessagestest", 10)); + + if (ssSend.size() == 0) + return; + + // Set the size + unsigned int nSize = ssSend.size() - CMessageHeader::HEADER_SIZE; + memcpy((char*)&ssSend[CMessageHeader::MESSAGE_SIZE_OFFSET], &nSize, sizeof(nSize)); + + // Set the checksum + uint256 hash = Hash(ssSend.begin() + CMessageHeader::HEADER_SIZE, ssSend.end()); + unsigned int nChecksum = 0; + memcpy(&nChecksum, &hash, sizeof(nChecksum)); + assert(ssSend.size () >= CMessageHeader::CHECKSUM_OFFSET + sizeof(nChecksum)); + memcpy((char*)&ssSend[CMessageHeader::CHECKSUM_OFFSET], &nChecksum, sizeof(nChecksum)); + + LogPrint("net", "(%d bytes) peer=%d\n", nSize, id); + + std::deque::iterator it = vSendMsg.insert(vSendMsg.end(), CSerializeData()); + ssSend.GetAndClear(*it); + nSendSize += (*it).size(); + + // If write queue empty, attempt "optimistic write" + if (it == vSendMsg.begin()) + SocketSendData(this); + + LEAVE_CRITICAL_SECTION(cs_vSend); +} -- cgit v1.2.3