1 // Copyright (c) 2009 Satoshi Nakamoto
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2 // Distributed under the MIT/X11 software license, see the accompanying
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3 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
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7 void ThreadMessageHandler2(void* parg);
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8 void ThreadSocketHandler2(void* parg);
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9 void ThreadOpenConnections2(void* parg);
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10 bool OpenNetworkConnection(const CAddress& addrConnect);
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18 // Global state variables
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20 bool fClient = false;
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21 uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
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22 CAddress addrLocalHost(0, DEFAULT_PORT, nLocalServices);
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23 CNode* pnodeLocalHost = NULL;
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24 uint64 nLocalHostNonce = 0;
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25 bool fShutdown = false;
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26 array<int, 10> vnThreadsRunning;
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27 SOCKET hListenSocket = INVALID_SOCKET;
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29 vector<CNode*> vNodes;
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30 CCriticalSection cs_vNodes;
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31 map<vector<unsigned char>, CAddress> mapAddresses;
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32 CCriticalSection cs_mapAddresses;
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33 map<CInv, CDataStream> mapRelay;
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34 deque<pair<int64, CInv> > vRelayExpiration;
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35 CCriticalSection cs_mapRelay;
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36 map<CInv, int64> mapAlreadyAskedFor;
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39 int fUseProxy = false;
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40 CAddress addrProxy("127.0.0.1:9050");
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44 bool ConnectSocket(const CAddress& addrConnect, SOCKET& hSocketRet)
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46 hSocketRet = INVALID_SOCKET;
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48 SOCKET hSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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49 if (hSocket == INVALID_SOCKET)
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51 #if defined(__BSD__) || defined(__WXOSX__)
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53 setsockopt(hSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&set, sizeof(int));
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56 bool fRoutable = !(addrConnect.GetByte(3) == 10 || (addrConnect.GetByte(3) == 192 && addrConnect.GetByte(2) == 168));
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57 bool fProxy = (fUseProxy && fRoutable);
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58 struct sockaddr_in sockaddr = (fProxy ? addrProxy.GetSockAddr() : addrConnect.GetSockAddr());
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60 if (connect(hSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
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62 closesocket(hSocket);
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68 printf("Proxy connecting %s\n", addrConnect.ToStringLog().c_str());
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69 char pszSocks4IP[] = "\4\1\0\0\0\0\0\0user";
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70 memcpy(pszSocks4IP + 2, &addrConnect.port, 2);
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71 memcpy(pszSocks4IP + 4, &addrConnect.ip, 4);
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72 char* pszSocks4 = pszSocks4IP;
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73 int nSize = sizeof(pszSocks4IP);
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75 int ret = send(hSocket, pszSocks4, nSize, MSG_NOSIGNAL);
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78 closesocket(hSocket);
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79 return error("Error sending to proxy");
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82 if (recv(hSocket, pchRet, 8, 0) != 8)
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84 closesocket(hSocket);
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85 return error("Error reading proxy response");
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87 if (pchRet[1] != 0x5a)
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89 closesocket(hSocket);
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90 return error("Proxy returned error %d", pchRet[1]);
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92 printf("Proxy connection established %s\n", addrConnect.ToStringLog().c_str());
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95 hSocketRet = hSocket;
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101 bool GetMyExternalIP2(const CAddress& addrConnect, const char* pszGet, const char* pszKeyword, unsigned int& ipRet)
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104 if (!ConnectSocket(addrConnect, hSocket))
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105 return error("GetMyExternalIP() : connection to %s failed", addrConnect.ToString().c_str());
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107 send(hSocket, pszGet, strlen(pszGet), MSG_NOSIGNAL);
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110 while (RecvLine(hSocket, strLine))
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112 if (strLine.empty())
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116 if (!RecvLine(hSocket, strLine))
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118 closesocket(hSocket);
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121 if (strLine.find(pszKeyword) != -1)
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123 strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
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127 closesocket(hSocket);
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128 if (strLine.find("<"))
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129 strLine = strLine.substr(0, strLine.find("<"));
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130 strLine = strLine.substr(strspn(strLine.c_str(), " \t\n\r"));
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131 while (strLine.size() > 0 && isspace(strLine[strLine.size()-1]))
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132 strLine.resize(strLine.size()-1);
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133 CAddress addr(strLine.c_str());
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134 printf("GetMyExternalIP() received [%s] %s\n", strLine.c_str(), addr.ToString().c_str());
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135 if (addr.ip == 0 || addr.ip == INADDR_NONE || !addr.IsRoutable())
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141 closesocket(hSocket);
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142 return error("GetMyExternalIP() : connection closed");
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146 bool GetMyExternalIP(unsigned int& ipRet)
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148 CAddress addrConnect;
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155 for (int nLookup = 0; nLookup <= 1; nLookup++)
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156 for (int nHost = 1; nHost <= 2; nHost++)
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160 addrConnect = CAddress("70.86.96.218:80"); // www.ipaddressworld.com
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164 struct hostent* phostent = gethostbyname("www.ipaddressworld.com");
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165 if (phostent && phostent->h_addr_list && phostent->h_addr_list[0])
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166 addrConnect = CAddress(*(u_long*)phostent->h_addr_list[0], htons(80));
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169 pszGet = "GET /ip.php HTTP/1.1\r\n"
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170 "Host: www.ipaddressworld.com\r\n"
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171 "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
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172 "Connection: close\r\n"
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175 pszKeyword = "IP:";
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177 else if (nHost == 2)
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179 addrConnect = CAddress("208.78.68.70:80"); // checkip.dyndns.org
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183 struct hostent* phostent = gethostbyname("checkip.dyndns.org");
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184 if (phostent && phostent->h_addr_list && phostent->h_addr_list[0])
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185 addrConnect = CAddress(*(u_long*)phostent->h_addr_list[0], htons(80));
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188 pszGet = "GET / HTTP/1.1\r\n"
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189 "Host: checkip.dyndns.org\r\n"
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190 "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
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191 "Connection: close\r\n"
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194 pszKeyword = "Address:";
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197 if (GetMyExternalIP2(addrConnect, pszGet, pszKeyword, ipRet))
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208 bool AddAddress(CAddrDB& addrdb, CAddress addr, bool fCurrentlyOnline)
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210 if (!addr.IsRoutable())
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212 if (addr.ip == addrLocalHost.ip)
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214 if (fCurrentlyOnline)
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215 addr.nTime = GetAdjustedTime();
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216 CRITICAL_BLOCK(cs_mapAddresses)
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218 map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
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219 if (it == mapAddresses.end())
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222 mapAddresses.insert(make_pair(addr.GetKey(), addr));
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223 addrdb.WriteAddress(addr);
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228 bool fUpdated = false;
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229 CAddress& addrFound = (*it).second;
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230 if ((addrFound.nServices | addr.nServices) != addrFound.nServices)
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232 // Services have been added
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233 addrFound.nServices |= addr.nServices;
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236 int64 nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
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237 if (addrFound.nTime < addr.nTime - nUpdateInterval)
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239 // Periodically update most recently seen time
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240 addrFound.nTime = addr.nTime;
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244 addrdb.WriteAddress(addrFound);
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250 void AddressCurrentlyConnected(const CAddress& addr)
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252 CRITICAL_BLOCK(cs_mapAddresses)
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254 // Only if it's been published already
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255 map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
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256 if (it != mapAddresses.end())
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258 CAddress& addrFound = (*it).second;
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259 int64 nUpdateInterval = 60 * 60;
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260 if (addrFound.nTime < GetAdjustedTime() - nUpdateInterval)
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262 // Periodically update most recently seen time
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263 addrFound.nTime = GetAdjustedTime();
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265 addrdb.WriteAddress(addrFound);
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275 void AbandonRequests(void (*fn)(void*, CDataStream&), void* param1)
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277 // If the dialog might get closed before the reply comes back,
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278 // call this in the destructor so it doesn't get called after it's deleted.
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279 CRITICAL_BLOCK(cs_vNodes)
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281 foreach(CNode* pnode, vNodes)
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283 CRITICAL_BLOCK(pnode->cs_mapRequests)
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285 for (map<uint256, CRequestTracker>::iterator mi = pnode->mapRequests.begin(); mi != pnode->mapRequests.end();)
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287 CRequestTracker& tracker = (*mi).second;
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288 if (tracker.fn == fn && tracker.param1 == param1)
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289 pnode->mapRequests.erase(mi++);
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305 // Subscription methods for the broadcast and subscription system.
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306 // Channel numbers are message numbers, i.e. MSG_TABLE and MSG_PRODUCT.
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308 // The subscription system uses a meet-in-the-middle strategy.
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309 // With 100,000 nodes, if senders broadcast to 1000 random nodes and receivers
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310 // subscribe to 1000 random nodes, 99.995% (1 - 0.99^1000) of messages will get through.
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313 bool AnySubscribed(unsigned int nChannel)
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315 if (pnodeLocalHost->IsSubscribed(nChannel))
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317 CRITICAL_BLOCK(cs_vNodes)
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318 foreach(CNode* pnode, vNodes)
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319 if (pnode->IsSubscribed(nChannel))
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324 bool CNode::IsSubscribed(unsigned int nChannel)
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326 if (nChannel >= vfSubscribe.size())
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328 return vfSubscribe[nChannel];
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331 void CNode::Subscribe(unsigned int nChannel, unsigned int nHops)
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333 if (nChannel >= vfSubscribe.size())
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336 if (!AnySubscribed(nChannel))
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339 CRITICAL_BLOCK(cs_vNodes)
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340 foreach(CNode* pnode, vNodes)
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342 pnode->PushMessage("subscribe", nChannel, nHops);
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345 vfSubscribe[nChannel] = true;
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348 void CNode::CancelSubscribe(unsigned int nChannel)
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350 if (nChannel >= vfSubscribe.size())
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353 // Prevent from relaying cancel if wasn't subscribed
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354 if (!vfSubscribe[nChannel])
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356 vfSubscribe[nChannel] = false;
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358 if (!AnySubscribed(nChannel))
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360 // Relay subscription cancel
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361 CRITICAL_BLOCK(cs_vNodes)
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362 foreach(CNode* pnode, vNodes)
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364 pnode->PushMessage("sub-cancel", nChannel);
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366 // Clear memory, no longer subscribed
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367 if (nChannel == MSG_PRODUCT)
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368 CRITICAL_BLOCK(cs_mapProducts)
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369 mapProducts.clear();
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381 CNode* FindNode(unsigned int ip)
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383 CRITICAL_BLOCK(cs_vNodes)
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385 foreach(CNode* pnode, vNodes)
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386 if (pnode->addr.ip == ip)
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392 CNode* FindNode(CAddress addr)
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394 CRITICAL_BLOCK(cs_vNodes)
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396 foreach(CNode* pnode, vNodes)
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397 if (pnode->addr == addr)
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403 CNode* ConnectNode(CAddress addrConnect, int64 nTimeout)
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405 if (addrConnect.ip == addrLocalHost.ip)
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408 // Look for an existing connection
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409 CNode* pnode = FindNode(addrConnect.ip);
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413 pnode->AddRef(nTimeout);
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420 printf("trying connection %s\n", addrConnect.ToStringLog().c_str());
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424 if (ConnectSocket(addrConnect, hSocket))
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427 printf("connected %s\n", addrConnect.ToStringLog().c_str());
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429 // Set to nonblocking
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432 if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
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433 printf("ConnectSocket() : ioctlsocket nonblocking setting failed, error %d\n", WSAGetLastError());
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435 if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
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436 printf("ConnectSocket() : fcntl nonblocking setting failed, error %d\n", errno);
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440 CNode* pnode = new CNode(hSocket, addrConnect, false);
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442 pnode->AddRef(nTimeout);
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445 CRITICAL_BLOCK(cs_vNodes)
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446 vNodes.push_back(pnode);
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448 CRITICAL_BLOCK(cs_mapAddresses)
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449 mapAddresses[addrConnect.GetKey()].nLastFailed = 0;
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454 CRITICAL_BLOCK(cs_mapAddresses)
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455 mapAddresses[addrConnect.GetKey()].nLastFailed = GetAdjustedTime();
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460 void CNode::DoDisconnect()
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462 printf("disconnecting node %s\n", addr.ToStringLog().c_str());
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464 closesocket(hSocket);
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466 // If outbound and never got version message, mark address as failed
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467 if (!fInbound && !fSuccessfullyConnected)
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468 CRITICAL_BLOCK(cs_mapAddresses)
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469 mapAddresses[addr.GetKey()].nLastFailed = GetAdjustedTime();
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471 // All of a nodes broadcasts and subscriptions are automatically torn down
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472 // when it goes down, so a node has to stay up to keep its broadcast going.
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474 CRITICAL_BLOCK(cs_mapProducts)
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475 for (map<uint256, CProduct>::iterator mi = mapProducts.begin(); mi != mapProducts.end();)
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476 AdvertRemoveSource(this, MSG_PRODUCT, 0, (*(mi++)).second);
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478 // Cancel subscriptions
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479 for (unsigned int nChannel = 0; nChannel < vfSubscribe.size(); nChannel++)
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480 if (vfSubscribe[nChannel])
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481 CancelSubscribe(nChannel);
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496 void ThreadSocketHandler(void* parg)
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498 IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));
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502 vnThreadsRunning[0]++;
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503 ThreadSocketHandler2(parg);
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504 vnThreadsRunning[0]--;
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506 catch (std::exception& e) {
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507 vnThreadsRunning[0]--;
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508 PrintException(&e, "ThreadSocketHandler()");
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510 vnThreadsRunning[0]--;
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511 PrintException(NULL, "ThreadSocketHandler()");
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514 printf("ThreadSocketHandler exiting\n");
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517 void ThreadSocketHandler2(void* parg)
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519 printf("ThreadSocketHandler started\n");
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520 list<CNode*> vNodesDisconnected;
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521 int nPrevNodeCount = 0;
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526 // Disconnect nodes
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528 CRITICAL_BLOCK(cs_vNodes)
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530 // Disconnect unused nodes
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531 vector<CNode*> vNodesCopy = vNodes;
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532 foreach(CNode* pnode, vNodesCopy)
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534 if (pnode->ReadyToDisconnect() && pnode->vRecv.empty() && pnode->vSend.empty())
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536 // remove from vNodes
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537 vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());
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538 pnode->DoDisconnect();
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540 // hold in disconnected pool until all refs are released
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541 pnode->nReleaseTime = max(pnode->nReleaseTime, GetTime() + 5 * 60);
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542 if (pnode->fNetworkNode)
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544 vNodesDisconnected.push_back(pnode);
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548 // Delete disconnected nodes
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549 list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
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550 foreach(CNode* pnode, vNodesDisconnectedCopy)
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552 // wait until threads are done using it
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553 if (pnode->GetRefCount() <= 0)
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555 bool fDelete = false;
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556 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
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557 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
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558 TRY_CRITICAL_BLOCK(pnode->cs_mapRequests)
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559 TRY_CRITICAL_BLOCK(pnode->cs_inventory)
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563 vNodesDisconnected.remove(pnode);
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569 if (vNodes.size() != nPrevNodeCount)
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571 nPrevNodeCount = vNodes.size();
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572 MainFrameRepaint();
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577 // Find which sockets have data to receive
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579 struct timeval timeout;
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580 timeout.tv_sec = 0;
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581 timeout.tv_usec = 50000; // frequency to poll pnode->vSend
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585 FD_ZERO(&fdsetRecv);
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586 FD_ZERO(&fdsetSend);
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587 SOCKET hSocketMax = 0;
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588 FD_SET(hListenSocket, &fdsetRecv);
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589 hSocketMax = max(hSocketMax, hListenSocket);
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590 CRITICAL_BLOCK(cs_vNodes)
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592 foreach(CNode* pnode, vNodes)
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594 FD_SET(pnode->hSocket, &fdsetRecv);
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595 hSocketMax = max(hSocketMax, pnode->hSocket);
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596 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
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597 if (!pnode->vSend.empty())
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598 FD_SET(pnode->hSocket, &fdsetSend);
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602 vnThreadsRunning[0]--;
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603 int nSelect = select(hSocketMax + 1, &fdsetRecv, &fdsetSend, NULL, &timeout);
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604 vnThreadsRunning[0]++;
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607 if (nSelect == SOCKET_ERROR)
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609 int nErr = WSAGetLastError();
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610 printf("select failed: %d\n", nErr);
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611 for (int i = 0; i <= hSocketMax; i++)
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613 FD_SET(i, &fdsetRecv);
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614 FD_SET(i, &fdsetSend);
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616 Sleep(timeout.tv_usec/1000);
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620 //foreach(CNode* pnode, vNodes)
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622 // printf("vRecv = %-5d ", pnode->vRecv.size());
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623 // printf("vSend = %-5d ", pnode->vSend.size());
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629 // Accept new connections
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631 if (FD_ISSET(hListenSocket, &fdsetRecv))
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633 struct sockaddr_in sockaddr;
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635 int len = sizeof(sockaddr);
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637 socklen_t len = sizeof(sockaddr);
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639 SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
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640 CAddress addr(sockaddr);
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641 if (hSocket == INVALID_SOCKET)
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643 if (WSAGetLastError() != WSAEWOULDBLOCK)
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644 printf("ERROR ThreadSocketHandler accept failed: %d\n", WSAGetLastError());
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648 printf("accepted connection %s\n", addr.ToStringLog().c_str());
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649 CNode* pnode = new CNode(hSocket, addr, true);
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651 CRITICAL_BLOCK(cs_vNodes)
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652 vNodes.push_back(pnode);
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658 // Service each socket
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660 vector<CNode*> vNodesCopy;
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661 CRITICAL_BLOCK(cs_vNodes)
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662 vNodesCopy = vNodes;
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663 foreach(CNode* pnode, vNodesCopy)
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667 SOCKET hSocket = pnode->hSocket;
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672 if (FD_ISSET(hSocket, &fdsetRecv))
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674 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
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676 CDataStream& vRecv = pnode->vRecv;
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677 unsigned int nPos = vRecv.size();
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679 // typical socket buffer is 8K-64K
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680 const unsigned int nBufSize = 0x10000;
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681 vRecv.resize(nPos + nBufSize);
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682 int nBytes = recv(hSocket, &vRecv[nPos], nBufSize, 0);
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683 vRecv.resize(nPos + max(nBytes, 0));
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686 // socket closed gracefully
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687 if (!pnode->fDisconnect)
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688 printf("recv: socket closed\n");
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689 pnode->fDisconnect = true;
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691 else if (nBytes < 0)
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694 int nErr = WSAGetLastError();
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695 if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
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697 if (!pnode->fDisconnect)
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698 printf("recv failed: %d\n", nErr);
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699 pnode->fDisconnect = true;
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708 if (FD_ISSET(hSocket, &fdsetSend))
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710 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
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712 CDataStream& vSend = pnode->vSend;
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713 if (!vSend.empty())
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715 int nBytes = send(hSocket, &vSend[0], vSend.size(), MSG_NOSIGNAL);
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718 vSend.erase(vSend.begin(), vSend.begin() + nBytes);
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720 else if (nBytes == 0)
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722 if (pnode->ReadyToDisconnect())
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723 pnode->vSend.clear();
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727 printf("send error %d\n", nBytes);
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728 if (pnode->ReadyToDisconnect())
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729 pnode->vSend.clear();
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750 void ThreadOpenConnections(void* parg)
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752 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
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756 vnThreadsRunning[1]++;
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757 ThreadOpenConnections2(parg);
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758 vnThreadsRunning[1]--;
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760 catch (std::exception& e) {
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761 vnThreadsRunning[1]--;
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762 PrintException(&e, "ThreadOpenConnections()");
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764 vnThreadsRunning[1]--;
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765 PrintException(NULL, "ThreadOpenConnections()");
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768 printf("ThreadOpenConnections exiting\n");
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771 void ThreadOpenConnections2(void* parg)
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773 printf("ThreadOpenConnections started\n");
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775 // Connect to one specified address
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776 while (mapArgs.count("-connect"))
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778 OpenNetworkConnection(CAddress(mapArgs["-connect"]));
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779 for (int i = 0; i < 10; i++)
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787 // Connect to manually added nodes first
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788 if (mapArgs.count("-addnode"))
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790 foreach(string strAddr, mapMultiArgs["-addnode"])
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792 CAddress addr(strAddr, NODE_NETWORK);
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793 if (addr.IsValid())
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795 OpenNetworkConnection(addr);
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803 // Initiate network connections
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807 vnThreadsRunning[1]--;
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809 const int nMaxConnections = 15;
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810 while (vNodes.size() >= nMaxConnections || vNodes.size() >= mapAddresses.size())
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816 vnThreadsRunning[1]++;
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821 // Choose an address to connect to based on most recently seen
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823 CAddress addrConnect;
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824 int64 nBestTime = 0;
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825 int64 nDelay = ((60 * 60) << vNodes.size());
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826 if (vNodes.size() >= 3)
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828 if (nGotIRCAddresses > 0)
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831 // Do this here so we don't have to critsect vNodes inside mapAddresses critsect
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832 set<unsigned int> setConnected;
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833 CRITICAL_BLOCK(cs_vNodes)
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834 foreach(CNode* pnode, vNodes)
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835 setConnected.insert(pnode->addr.ip);
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837 CRITICAL_BLOCK(cs_mapAddresses)
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839 foreach(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
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841 const CAddress& addr = item.second;
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842 if (!addr.IsIPv4() || !addr.IsValid() || setConnected.count(addr.ip))
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845 // Limit retry frequency
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846 if (GetAdjustedTime() < addr.nLastFailed + nDelay)
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849 // Try again only after all addresses had a first attempt
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850 int64 nTime = addr.nTime;
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851 if (addr.nLastFailed > addr.nTime)
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852 nTime -= 365 * 24 * 60 * 60;
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854 // Randomize the order a little, putting the standard port first
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855 nTime += GetRand(1 * 60 * 60);
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856 if (addr.port != DEFAULT_PORT)
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857 nTime -= 1 * 60 * 60;
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859 if (nTime > nBestTime)
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862 addrConnect = addr;
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867 if (addrConnect.IsValid())
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868 OpenNetworkConnection(addrConnect);
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872 bool OpenNetworkConnection(const CAddress& addrConnect)
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875 // Initiate outbound network connection
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879 if (addrConnect.ip == addrLocalHost.ip || !addrConnect.IsIPv4() || FindNode(addrConnect.ip))
\r
882 vnThreadsRunning[1]--;
\r
883 CNode* pnode = ConnectNode(addrConnect);
\r
884 vnThreadsRunning[1]++;
\r
889 pnode->fNetworkNode = true;
\r
891 if (addrLocalHost.IsRoutable() && !fUseProxy)
\r
893 // Advertise our address
\r
894 vector<CAddress> vAddrToSend;
\r
895 vAddrToSend.push_back(addrLocalHost);
\r
896 pnode->PushMessage("addr", vAddrToSend);
\r
899 // Get as many addresses as we can
\r
900 pnode->PushMessage("getaddr");
\r
901 pnode->fGetAddr = true; // don't relay the results of the getaddr
\r
903 ////// should the one on the receiving end do this too?
\r
904 // Subscribe our local subscription list
\r
905 const unsigned int nHops = 0;
\r
906 for (unsigned int nChannel = 0; nChannel < pnodeLocalHost->vfSubscribe.size(); nChannel++)
\r
907 if (pnodeLocalHost->vfSubscribe[nChannel])
\r
908 pnode->PushMessage("subscribe", nChannel, nHops);
\r
920 void ThreadMessageHandler(void* parg)
\r
922 IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
\r
926 vnThreadsRunning[2]++;
\r
927 ThreadMessageHandler2(parg);
\r
928 vnThreadsRunning[2]--;
\r
930 catch (std::exception& e) {
\r
931 vnThreadsRunning[2]--;
\r
932 PrintException(&e, "ThreadMessageHandler()");
\r
934 vnThreadsRunning[2]--;
\r
935 PrintException(NULL, "ThreadMessageHandler()");
\r
938 printf("ThreadMessageHandler exiting\n");
\r
941 void ThreadMessageHandler2(void* parg)
\r
943 printf("ThreadMessageHandler started\n");
\r
944 SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_BELOW_NORMAL);
\r
947 // Poll the connected nodes for messages
\r
948 vector<CNode*> vNodesCopy;
\r
949 CRITICAL_BLOCK(cs_vNodes)
\r
950 vNodesCopy = vNodes;
\r
951 foreach(CNode* pnode, vNodesCopy)
\r
955 // Receive messages
\r
956 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
\r
957 ProcessMessages(pnode);
\r
962 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
\r
963 SendMessages(pnode);
\r
970 // Wait and allow messages to bunch up
\r
971 vnThreadsRunning[2]--;
\r
973 vnThreadsRunning[2]++;
\r
987 bool BindListenPort(string& strError)
\r
993 // Initialize Windows Sockets
\r
995 int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
\r
996 if (ret != NO_ERROR)
\r
998 strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
\r
999 printf("%s\n", strError.c_str());
\r
1004 // Create socket for listening for incoming connections
\r
1005 hListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
\r
1006 if (hListenSocket == INVALID_SOCKET)
\r
1008 strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
\r
1009 printf("%s\n", strError.c_str());
\r
1013 #if defined(__BSD__) || defined(__WXOSX__)
\r
1014 // Different way of disabling SIGPIPE on BSD
\r
1015 setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
\r
1019 // Allow binding if the port is still in TIME_WAIT state after
\r
1020 // the program was closed and restarted. Not an issue on windows.
\r
1021 setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
\r
1025 // Set to nonblocking, incoming connections will also inherit this
\r
1026 if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
\r
1028 if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
\r
1031 strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
\r
1032 printf("%s\n", strError.c_str());
\r
1036 // The sockaddr_in structure specifies the address family,
\r
1037 // IP address, and port for the socket that is being bound
\r
1038 struct sockaddr_in sockaddr;
\r
1039 memset(&sockaddr, 0, sizeof(sockaddr));
\r
1040 sockaddr.sin_family = AF_INET;
\r
1041 sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
\r
1042 sockaddr.sin_port = DEFAULT_PORT;
\r
1043 if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
\r
1045 int nErr = WSAGetLastError();
\r
1046 if (nErr == WSAEADDRINUSE)
\r
1047 strError = strprintf("Unable to bind to port %d on this computer. Bitcoin is probably already running.", ntohs(sockaddr.sin_port));
\r
1049 strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
\r
1050 printf("%s\n", strError.c_str());
\r
1053 printf("Bound to port %d\n", ntohs(sockaddr.sin_port));
\r
1055 // Listen for incoming connections
\r
1056 if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
\r
1058 strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
\r
1059 printf("%s\n", strError.c_str());
\r
1066 bool StartNode(string& strError)
\r
1069 if (pnodeLocalHost == NULL)
\r
1070 pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress("127.0.0.1", nLocalServices));
\r
1072 // Get local host ip
\r
1073 char pszHostName[255];
\r
1074 if (gethostname(pszHostName, sizeof(pszHostName)) == SOCKET_ERROR)
\r
1076 strError = strprintf("Error: Unable to get IP address of this computer (gethostname returned error %d)", WSAGetLastError());
\r
1077 printf("%s\n", strError.c_str());
\r
1080 struct hostent* phostent = gethostbyname(pszHostName);
\r
1083 strError = strprintf("Error: Unable to get IP address of this computer (gethostbyname returned error %d)", WSAGetLastError());
\r
1084 printf("%s\n", strError.c_str());
\r
1088 // Take the first IP that isn't loopback 127.x.x.x
\r
1089 for (int i = 0; phostent->h_addr_list[i] != NULL; i++)
\r
1090 printf("host ip %d: %s\n", i, CAddress(*(unsigned int*)phostent->h_addr_list[i]).ToStringIP().c_str());
\r
1091 for (int i = 0; phostent->h_addr_list[i] != NULL; i++)
\r
1093 addrLocalHost = CAddress(*(unsigned int*)phostent->h_addr_list[i], DEFAULT_PORT, nLocalServices);
\r
1094 if (addrLocalHost.IsValid() && addrLocalHost.GetByte(3) != 127)
\r
1097 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
\r
1099 // Get our external IP address for incoming connections
\r
1102 // Proxies can't take incoming connections
\r
1103 addrLocalHost.ip = CAddress("0.0.0.0").ip;
\r
1104 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
\r
1108 if (addrIncoming.ip)
\r
1109 addrLocalHost.ip = addrIncoming.ip;
\r
1111 if (GetMyExternalIP(addrLocalHost.ip))
\r
1113 addrIncoming = addrLocalHost;
\r
1114 CWalletDB().WriteSetting("addrIncoming", addrIncoming);
\r
1118 // Get addresses from IRC and advertise ours
\r
1119 if (_beginthread(ThreadIRCSeed, 0, NULL) == -1)
\r
1120 printf("Error: _beginthread(ThreadIRCSeed) failed\n");
\r
1125 if (_beginthread(ThreadSocketHandler, 0, NULL) == -1)
\r
1127 strError = "Error: _beginthread(ThreadSocketHandler) failed";
\r
1128 printf("%s\n", strError.c_str());
\r
1132 if (_beginthread(ThreadOpenConnections, 0, NULL) == -1)
\r
1134 strError = "Error: _beginthread(ThreadOpenConnections) failed";
\r
1135 printf("%s\n", strError.c_str());
\r
1139 if (_beginthread(ThreadMessageHandler, 0, NULL) == -1)
\r
1141 strError = "Error: _beginthread(ThreadMessageHandler) failed";
\r
1142 printf("%s\n", strError.c_str());
\r
1151 printf("StopNode()\n");
\r
1153 nTransactionsUpdated++;
\r
1154 int64 nStart = GetTime();
\r
1155 while (vnThreadsRunning[0] > 0 || vnThreadsRunning[2] > 0 || vnThreadsRunning[3] > 0)
\r
1157 if (GetTime() - nStart > 15)
\r
1161 if (vnThreadsRunning[0] > 0) printf("ThreadSocketHandler still running\n");
\r
1162 if (vnThreadsRunning[1] > 0) printf("ThreadOpenConnections still running\n");
\r
1163 if (vnThreadsRunning[2] > 0) printf("ThreadMessageHandler still running\n");
\r
1164 if (vnThreadsRunning[3] > 0) printf("ThreadBitcoinMiner still running\n");
\r
1165 while (vnThreadsRunning[2] > 0)
\r