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-rw-r--r--net.h1055
1 files changed, 0 insertions, 1055 deletions
diff --git a/net.h b/net.h
deleted file mode 100644
index b3bd74da47..0000000000
--- a/net.h
+++ /dev/null
@@ -1,1055 +0,0 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
-
-class CMessageHeader;
-class CAddress;
-class CInv;
-class CRequestTracker;
-class CNode;
-class CBlockIndex;
-extern int nBestHeight;
-
-
-
-inline unsigned short GetDefaultPort() { return fTestNet ? htons(18333) : htons(8333); }
-static const unsigned int PUBLISH_HOPS = 5;
-enum
-{
- NODE_NETWORK = (1 << 0),
-};
-
-
-
-
-bool ConnectSocket(const CAddress& addrConnect, SOCKET& hSocketRet);
-bool GetMyExternalIP(unsigned int& ipRet);
-bool AddAddress(CAddress addr, int64 nTimePenalty=0);
-void AddressCurrentlyConnected(const CAddress& addr);
-CNode* FindNode(unsigned int ip);
-CNode* ConnectNode(CAddress addrConnect, int64 nTimeout=0);
-void AbandonRequests(void (*fn)(void*, CDataStream&), void* param1);
-bool AnySubscribed(unsigned int nChannel);
-void MapPort(bool fMapPort);
-void DNSAddressSeed();
-bool BindListenPort(string& strError=REF(string()));
-void StartNode(void* parg);
-bool StopNode();
-
-
-
-
-
-
-
-
-//
-// Message header
-// (4) message start
-// (12) command
-// (4) size
-// (4) checksum
-
-extern char pchMessageStart[4];
-
-class CMessageHeader
-{
-public:
- enum { COMMAND_SIZE=12 };
- char pchMessageStart[sizeof(::pchMessageStart)];
- char pchCommand[COMMAND_SIZE];
- unsigned int nMessageSize;
- unsigned int nChecksum;
-
- CMessageHeader()
- {
- memcpy(pchMessageStart, ::pchMessageStart, sizeof(pchMessageStart));
- memset(pchCommand, 0, sizeof(pchCommand));
- pchCommand[1] = 1;
- nMessageSize = -1;
- nChecksum = 0;
- }
-
- CMessageHeader(const char* pszCommand, unsigned int nMessageSizeIn)
- {
- memcpy(pchMessageStart, ::pchMessageStart, sizeof(pchMessageStart));
- strncpy(pchCommand, pszCommand, COMMAND_SIZE);
- nMessageSize = nMessageSizeIn;
- nChecksum = 0;
- }
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(FLATDATA(pchMessageStart));
- READWRITE(FLATDATA(pchCommand));
- READWRITE(nMessageSize);
- if (nVersion >= 209)
- READWRITE(nChecksum);
- )
-
- string GetCommand()
- {
- if (pchCommand[COMMAND_SIZE-1] == 0)
- return string(pchCommand, pchCommand + strlen(pchCommand));
- else
- return string(pchCommand, pchCommand + COMMAND_SIZE);
- }
-
- bool IsValid()
- {
- // Check start string
- if (memcmp(pchMessageStart, ::pchMessageStart, sizeof(pchMessageStart)) != 0)
- return false;
-
- // Check the command string for errors
- for (char* p1 = pchCommand; p1 < pchCommand + COMMAND_SIZE; p1++)
- {
- if (*p1 == 0)
- {
- // Must be all zeros after the first zero
- for (; p1 < pchCommand + COMMAND_SIZE; p1++)
- if (*p1 != 0)
- return false;
- }
- else if (*p1 < ' ' || *p1 > 0x7E)
- return false;
- }
-
- // Message size
- if (nMessageSize > MAX_SIZE)
- {
- printf("CMessageHeader::IsValid() : (%s, %u bytes) nMessageSize > MAX_SIZE\n", GetCommand().c_str(), nMessageSize);
- return false;
- }
-
- return true;
- }
-};
-
-
-
-
-
-
-static const unsigned char pchIPv4[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff };
-
-class CAddress
-{
-public:
- uint64 nServices;
- unsigned char pchReserved[12];
- unsigned int ip;
- unsigned short port;
-
- // disk and network only
- unsigned int nTime;
-
- // memory only
- unsigned int nLastTry;
-
- CAddress()
- {
- Init();
- }
-
- CAddress(unsigned int ipIn, unsigned short portIn=0, uint64 nServicesIn=NODE_NETWORK)
- {
- Init();
- ip = ipIn;
- port = (portIn == 0 ? GetDefaultPort() : portIn);
- nServices = nServicesIn;
- }
-
- explicit CAddress(const struct sockaddr_in& sockaddr, uint64 nServicesIn=NODE_NETWORK)
- {
- Init();
- ip = sockaddr.sin_addr.s_addr;
- port = sockaddr.sin_port;
- nServices = nServicesIn;
- }
-
- explicit CAddress(const char* pszIn, uint64 nServicesIn=NODE_NETWORK)
- {
- Init();
- SetAddress(pszIn);
- nServices = nServicesIn;
- }
-
- explicit CAddress(string strIn, uint64 nServicesIn=NODE_NETWORK)
- {
- Init();
- SetAddress(strIn.c_str());
- nServices = nServicesIn;
- }
-
- void Init()
- {
- nServices = NODE_NETWORK;
- memcpy(pchReserved, pchIPv4, sizeof(pchReserved));
- ip = INADDR_NONE;
- port = GetDefaultPort();
- nTime = 100000000;
- nLastTry = 0;
- }
-
- bool SetAddress(const char* pszIn)
- {
- ip = INADDR_NONE;
- port = GetDefaultPort();
- char psz[100];
- strlcpy(psz, pszIn, sizeof(psz));
- unsigned int a=0, b=0, c=0, d=0, e=0;
- if (sscanf(psz, "%u.%u.%u.%u:%u", &a, &b, &c, &d, &e) < 4)
- return false;
- char* pszPort = strchr(psz, ':');
- if (pszPort)
- {
- *pszPort++ = '\0';
- port = htons(atoi(pszPort));
- if (atoi(pszPort) < 0 || atoi(pszPort) > USHRT_MAX)
- port = htons(USHRT_MAX);
- }
- ip = inet_addr(psz);
- return IsValid();
- }
-
- bool SetAddress(string strIn)
- {
- return SetAddress(strIn.c_str());
- }
-
- IMPLEMENT_SERIALIZE
- (
- if (fRead)
- const_cast<CAddress*>(this)->Init();
- if (nType & SER_DISK)
- READWRITE(nVersion);
- if ((nType & SER_DISK) || (nVersion >= 31402 && !(nType & SER_GETHASH)))
- READWRITE(nTime);
- READWRITE(nServices);
- READWRITE(FLATDATA(pchReserved)); // for IPv6
- READWRITE(ip);
- READWRITE(port);
- )
-
- friend inline bool operator==(const CAddress& a, const CAddress& b)
- {
- return (memcmp(a.pchReserved, b.pchReserved, sizeof(a.pchReserved)) == 0 &&
- a.ip == b.ip &&
- a.port == b.port);
- }
-
- friend inline bool operator!=(const CAddress& a, const CAddress& b)
- {
- return (!(a == b));
- }
-
- friend inline bool operator<(const CAddress& a, const CAddress& b)
- {
- int ret = memcmp(a.pchReserved, b.pchReserved, sizeof(a.pchReserved));
- if (ret < 0)
- return true;
- else if (ret == 0)
- {
- if (ntohl(a.ip) < ntohl(b.ip))
- return true;
- else if (a.ip == b.ip)
- return ntohs(a.port) < ntohs(b.port);
- }
- return false;
- }
-
- vector<unsigned char> GetKey() const
- {
- CDataStream ss;
- ss.reserve(18);
- ss << FLATDATA(pchReserved) << ip << port;
-
- #if defined(_MSC_VER) && _MSC_VER < 1300
- return vector<unsigned char>((unsigned char*)&ss.begin()[0], (unsigned char*)&ss.end()[0]);
- #else
- return vector<unsigned char>(ss.begin(), ss.end());
- #endif
- }
-
- struct sockaddr_in GetSockAddr() const
- {
- struct sockaddr_in sockaddr;
- memset(&sockaddr, 0, sizeof(sockaddr));
- sockaddr.sin_family = AF_INET;
- sockaddr.sin_addr.s_addr = ip;
- sockaddr.sin_port = port;
- return sockaddr;
- }
-
- bool IsIPv4() const
- {
- return (memcmp(pchReserved, pchIPv4, sizeof(pchIPv4)) == 0);
- }
-
- bool IsRoutable() const
- {
- return IsValid() &&
- !(GetByte(3) == 10 ||
- (GetByte(3) == 192 && GetByte(2) == 168) ||
- GetByte(3) == 127 ||
- GetByte(3) == 0);
- }
-
- bool IsValid() const
- {
- // Clean up 3-byte shifted addresses caused by garbage in size field
- // of addr messages from versions before 0.2.9 checksum.
- // Two consecutive addr messages look like this:
- // header20 vectorlen3 addr26 addr26 addr26 header20 vectorlen3 addr26 addr26 addr26...
- // so if the first length field is garbled, it reads the second batch
- // of addr misaligned by 3 bytes.
- if (memcmp(pchReserved, pchIPv4+3, sizeof(pchIPv4)-3) == 0)
- return false;
-
- return (ip != 0 && ip != INADDR_NONE && port != htons(USHRT_MAX));
- }
-
- unsigned char GetByte(int n) const
- {
- return ((unsigned char*)&ip)[3-n];
- }
-
- string ToStringIPPort() const
- {
- return strprintf("%u.%u.%u.%u:%u", GetByte(3), GetByte(2), GetByte(1), GetByte(0), ntohs(port));
- }
-
- string ToStringIP() const
- {
- return strprintf("%u.%u.%u.%u", GetByte(3), GetByte(2), GetByte(1), GetByte(0));
- }
-
- string ToStringPort() const
- {
- return strprintf("%u", ntohs(port));
- }
-
- string ToStringLog() const
- {
- return "";
- }
-
- string ToString() const
- {
- return strprintf("%u.%u.%u.%u:%u", GetByte(3), GetByte(2), GetByte(1), GetByte(0), ntohs(port));
- }
-
- void print() const
- {
- printf("CAddress(%s)\n", ToString().c_str());
- }
-};
-
-
-
-
-
-
-
-enum
-{
- MSG_TX = 1,
- MSG_BLOCK,
-};
-
-static const char* ppszTypeName[] =
-{
- "ERROR",
- "tx",
- "block",
-};
-
-class CInv
-{
-public:
- int type;
- uint256 hash;
-
- CInv()
- {
- type = 0;
- hash = 0;
- }
-
- CInv(int typeIn, const uint256& hashIn)
- {
- type = typeIn;
- hash = hashIn;
- }
-
- CInv(const string& strType, const uint256& hashIn)
- {
- int i;
- for (i = 1; i < ARRAYLEN(ppszTypeName); i++)
- {
- if (strType == ppszTypeName[i])
- {
- type = i;
- break;
- }
- }
- if (i == ARRAYLEN(ppszTypeName))
- throw std::out_of_range(strprintf("CInv::CInv(string, uint256) : unknown type '%s'", strType.c_str()));
- hash = hashIn;
- }
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(type);
- READWRITE(hash);
- )
-
- friend inline bool operator<(const CInv& a, const CInv& b)
- {
- return (a.type < b.type || (a.type == b.type && a.hash < b.hash));
- }
-
- bool IsKnownType() const
- {
- return (type >= 1 && type < ARRAYLEN(ppszTypeName));
- }
-
- const char* GetCommand() const
- {
- if (!IsKnownType())
- throw std::out_of_range(strprintf("CInv::GetCommand() : type=%d unknown type", type));
- return ppszTypeName[type];
- }
-
- string ToString() const
- {
- return strprintf("%s %s", GetCommand(), hash.ToString().substr(0,20).c_str());
- }
-
- void print() const
- {
- printf("CInv(%s)\n", ToString().c_str());
- }
-};
-
-
-
-
-
-class CRequestTracker
-{
-public:
- void (*fn)(void*, CDataStream&);
- void* param1;
-
- explicit CRequestTracker(void (*fnIn)(void*, CDataStream&)=NULL, void* param1In=NULL)
- {
- fn = fnIn;
- param1 = param1In;
- }
-
- bool IsNull()
- {
- return fn == NULL;
- }
-};
-
-
-
-
-
-extern bool fClient;
-extern uint64 nLocalServices;
-extern CAddress addrLocalHost;
-extern CNode* pnodeLocalHost;
-extern uint64 nLocalHostNonce;
-extern array<int, 10> vnThreadsRunning;
-extern SOCKET hListenSocket;
-
-extern vector<CNode*> vNodes;
-extern CCriticalSection cs_vNodes;
-extern map<vector<unsigned char>, CAddress> mapAddresses;
-extern CCriticalSection cs_mapAddresses;
-extern map<CInv, CDataStream> mapRelay;
-extern deque<pair<int64, CInv> > vRelayExpiration;
-extern CCriticalSection cs_mapRelay;
-extern map<CInv, int64> mapAlreadyAskedFor;
-
-// Settings
-extern int fUseProxy;
-extern CAddress addrProxy;
-
-
-
-
-
-
-class CNode
-{
-public:
- // socket
- uint64 nServices;
- SOCKET hSocket;
- CDataStream vSend;
- CDataStream vRecv;
- CCriticalSection cs_vSend;
- CCriticalSection cs_vRecv;
- int64 nLastSend;
- int64 nLastRecv;
- int64 nLastSendEmpty;
- int64 nTimeConnected;
- unsigned int nHeaderStart;
- unsigned int nMessageStart;
- CAddress addr;
- int nVersion;
- string strSubVer;
- bool fClient;
- bool fInbound;
- bool fNetworkNode;
- bool fSuccessfullyConnected;
- bool fDisconnect;
-protected:
- int nRefCount;
-public:
- int64 nReleaseTime;
- map<uint256, CRequestTracker> mapRequests;
- CCriticalSection cs_mapRequests;
- uint256 hashContinue;
- CBlockIndex* pindexLastGetBlocksBegin;
- uint256 hashLastGetBlocksEnd;
- int nStartingHeight;
-
- // flood relay
- vector<CAddress> vAddrToSend;
- set<CAddress> setAddrKnown;
- bool fGetAddr;
- set<uint256> setKnown;
-
- // inventory based relay
- set<CInv> setInventoryKnown;
- vector<CInv> vInventoryToSend;
- CCriticalSection cs_inventory;
- multimap<int64, CInv> mapAskFor;
-
- // publish and subscription
- vector<char> vfSubscribe;
-
-
- CNode(SOCKET hSocketIn, CAddress addrIn, bool fInboundIn=false)
- {
- nServices = 0;
- hSocket = hSocketIn;
- vSend.SetType(SER_NETWORK);
- vSend.SetVersion(0);
- vRecv.SetType(SER_NETWORK);
- vRecv.SetVersion(0);
- // Version 0.2 obsoletes 20 Feb 2012
- if (GetTime() > 1329696000)
- {
- vSend.SetVersion(209);
- vRecv.SetVersion(209);
- }
- nLastSend = 0;
- nLastRecv = 0;
- nLastSendEmpty = GetTime();
- nTimeConnected = GetTime();
- nHeaderStart = -1;
- nMessageStart = -1;
- addr = addrIn;
- nVersion = 0;
- strSubVer = "";
- fClient = false; // set by version message
- fInbound = fInboundIn;
- fNetworkNode = false;
- fSuccessfullyConnected = false;
- fDisconnect = false;
- nRefCount = 0;
- nReleaseTime = 0;
- hashContinue = 0;
- pindexLastGetBlocksBegin = 0;
- hashLastGetBlocksEnd = 0;
- nStartingHeight = -1;
- fGetAddr = false;
- vfSubscribe.assign(256, false);
-
- // Be shy and don't send version until we hear
- if (!fInbound)
- PushVersion();
- }
-
- ~CNode()
- {
- if (hSocket != INVALID_SOCKET)
- {
- closesocket(hSocket);
- hSocket = INVALID_SOCKET;
- }
- }
-
-private:
- CNode(const CNode&);
- void operator=(const CNode&);
-public:
-
-
- int GetRefCount()
- {
- return max(nRefCount, 0) + (GetTime() < nReleaseTime ? 1 : 0);
- }
-
- CNode* AddRef(int64 nTimeout=0)
- {
- if (nTimeout != 0)
- nReleaseTime = max(nReleaseTime, GetTime() + nTimeout);
- else
- nRefCount++;
- return this;
- }
-
- void Release()
- {
- nRefCount--;
- }
-
-
-
- void AddAddressKnown(const CAddress& addr)
- {
- setAddrKnown.insert(addr);
- }
-
- void PushAddress(const CAddress& addr)
- {
- // Known checking here is only to save space from duplicates.
- // SendMessages will filter it again for knowns that were added
- // after addresses were pushed.
- if (addr.IsValid() && !setAddrKnown.count(addr))
- vAddrToSend.push_back(addr);
- }
-
-
- void AddInventoryKnown(const CInv& inv)
- {
- CRITICAL_BLOCK(cs_inventory)
- setInventoryKnown.insert(inv);
- }
-
- void PushInventory(const CInv& inv)
- {
- CRITICAL_BLOCK(cs_inventory)
- if (!setInventoryKnown.count(inv))
- vInventoryToSend.push_back(inv);
- }
-
- void AskFor(const CInv& inv)
- {
- // We're using mapAskFor as a priority queue,
- // the key is the earliest time the request can be sent
- int64& nRequestTime = mapAlreadyAskedFor[inv];
- printf("askfor %s %"PRI64d"\n", inv.ToString().c_str(), nRequestTime);
-
- // Make sure not to reuse time indexes to keep things in the same order
- int64 nNow = (GetTime() - 1) * 1000000;
- static int64 nLastTime;
- nLastTime = nNow = max(nNow, ++nLastTime);
-
- // Each retry is 2 minutes after the last
- nRequestTime = max(nRequestTime + 2 * 60 * 1000000, nNow);
- mapAskFor.insert(make_pair(nRequestTime, inv));
- }
-
-
-
- void BeginMessage(const char* pszCommand)
- {
- cs_vSend.Enter();
- if (nHeaderStart != -1)
- AbortMessage();
- nHeaderStart = vSend.size();
- vSend << CMessageHeader(pszCommand, 0);
- nMessageStart = vSend.size();
- if (fDebug)
- printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
- printf("sending: %s ", pszCommand);
- }
-
- void AbortMessage()
- {
- if (nHeaderStart == -1)
- return;
- vSend.resize(nHeaderStart);
- nHeaderStart = -1;
- nMessageStart = -1;
- cs_vSend.Leave();
- printf("(aborted)\n");
- }
-
- void EndMessage()
- {
- if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)
- {
- printf("dropmessages DROPPING SEND MESSAGE\n");
- AbortMessage();
- return;
- }
-
- if (nHeaderStart == -1)
- return;
-
- // Set the size
- unsigned int nSize = vSend.size() - nMessageStart;
- memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nMessageSize), &nSize, sizeof(nSize));
-
- // Set the checksum
- if (vSend.GetVersion() >= 209)
- {
- uint256 hash = Hash(vSend.begin() + nMessageStart, vSend.end());
- unsigned int nChecksum = 0;
- memcpy(&nChecksum, &hash, sizeof(nChecksum));
- assert(nMessageStart - nHeaderStart >= offsetof(CMessageHeader, nChecksum) + sizeof(nChecksum));
- memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nChecksum), &nChecksum, sizeof(nChecksum));
- }
-
- printf("(%d bytes) ", nSize);
- printf("\n");
-
- nHeaderStart = -1;
- nMessageStart = -1;
- cs_vSend.Leave();
- }
-
- void EndMessageAbortIfEmpty()
- {
- if (nHeaderStart == -1)
- return;
- int nSize = vSend.size() - nMessageStart;
- if (nSize > 0)
- EndMessage();
- else
- AbortMessage();
- }
-
-
-
- void PushVersion()
- {
- /// when NTP implemented, change to just nTime = GetAdjustedTime()
- int64 nTime = (fInbound ? GetAdjustedTime() : GetTime());
- CAddress addrYou = (fUseProxy ? CAddress("0.0.0.0") : addr);
- CAddress addrMe = (fUseProxy ? CAddress("0.0.0.0") : addrLocalHost);
- RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
- PushMessage("version", VERSION, nLocalServices, nTime, addrYou, addrMe,
- nLocalHostNonce, string(pszSubVer), nBestHeight);
- }
-
-
-
-
- void PushMessage(const char* pszCommand)
- {
- try
- {
- BeginMessage(pszCommand);
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1>
- void PushMessage(const char* pszCommand, const T1& a1)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3, typename T4>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3 << a4;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3, typename T4, typename T5>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3 << a4 << a5;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3 << a4 << a5 << a6;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3 << a4 << a5 << a6 << a7;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7, const T8& a8)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3 << a4 << a5 << a6 << a7 << a8;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
- template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
- void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7, const T8& a8, const T9& a9)
- {
- try
- {
- BeginMessage(pszCommand);
- vSend << a1 << a2 << a3 << a4 << a5 << a6 << a7 << a8 << a9;
- EndMessage();
- }
- catch (...)
- {
- AbortMessage();
- throw;
- }
- }
-
-
- void PushRequest(const char* pszCommand,
- void (*fn)(void*, CDataStream&), void* param1)
- {
- uint256 hashReply;
- RAND_bytes((unsigned char*)&hashReply, sizeof(hashReply));
-
- CRITICAL_BLOCK(cs_mapRequests)
- mapRequests[hashReply] = CRequestTracker(fn, param1);
-
- PushMessage(pszCommand, hashReply);
- }
-
- template<typename T1>
- void PushRequest(const char* pszCommand, const T1& a1,
- void (*fn)(void*, CDataStream&), void* param1)
- {
- uint256 hashReply;
- RAND_bytes((unsigned char*)&hashReply, sizeof(hashReply));
-
- CRITICAL_BLOCK(cs_mapRequests)
- mapRequests[hashReply] = CRequestTracker(fn, param1);
-
- PushMessage(pszCommand, hashReply, a1);
- }
-
- template<typename T1, typename T2>
- void PushRequest(const char* pszCommand, const T1& a1, const T2& a2,
- void (*fn)(void*, CDataStream&), void* param1)
- {
- uint256 hashReply;
- RAND_bytes((unsigned char*)&hashReply, sizeof(hashReply));
-
- CRITICAL_BLOCK(cs_mapRequests)
- mapRequests[hashReply] = CRequestTracker(fn, param1);
-
- PushMessage(pszCommand, hashReply, a1, a2);
- }
-
-
-
- void PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd);
- bool IsSubscribed(unsigned int nChannel);
- void Subscribe(unsigned int nChannel, unsigned int nHops=0);
- void CancelSubscribe(unsigned int nChannel);
- void CloseSocketDisconnect();
- void Cleanup();
-};
-
-
-
-
-
-
-
-
-
-
-inline void RelayInventory(const CInv& inv)
-{
- // Put on lists to offer to the other nodes
- CRITICAL_BLOCK(cs_vNodes)
- foreach(CNode* pnode, vNodes)
- pnode->PushInventory(inv);
-}
-
-template<typename T>
-void RelayMessage(const CInv& inv, const T& a)
-{
- CDataStream ss(SER_NETWORK);
- ss.reserve(10000);
- ss << a;
- RelayMessage(inv, ss);
-}
-
-template<>
-inline void RelayMessage<>(const CInv& inv, const CDataStream& ss)
-{
- CRITICAL_BLOCK(cs_mapRelay)
- {
- // Expire old relay messages
- while (!vRelayExpiration.empty() && vRelayExpiration.front().first < GetTime())
- {
- mapRelay.erase(vRelayExpiration.front().second);
- vRelayExpiration.pop_front();
- }
-
- // Save original serialized message so newer versions are preserved
- mapRelay[inv] = ss;
- vRelayExpiration.push_back(make_pair(GetTime() + 15 * 60, inv));
- }
-
- RelayInventory(inv);
-}
-
-
-
-
-
-
-
-
-//
-// Templates for the publish and subscription system.
-// The object being published as T& obj needs to have:
-// a set<unsigned int> setSources member
-// specializations of AdvertInsert and AdvertErase
-// Currently implemented for CTable and CProduct.
-//
-
-template<typename T>
-void AdvertStartPublish(CNode* pfrom, unsigned int nChannel, unsigned int nHops, T& obj)
-{
- // Add to sources
- obj.setSources.insert(pfrom->addr.ip);
-
- if (!AdvertInsert(obj))
- return;
-
- // Relay
- CRITICAL_BLOCK(cs_vNodes)
- foreach(CNode* pnode, vNodes)
- if (pnode != pfrom && (nHops < PUBLISH_HOPS || pnode->IsSubscribed(nChannel)))
- pnode->PushMessage("publish", nChannel, nHops, obj);
-}
-
-template<typename T>
-void AdvertStopPublish(CNode* pfrom, unsigned int nChannel, unsigned int nHops, T& obj)
-{
- uint256 hash = obj.GetHash();
-
- CRITICAL_BLOCK(cs_vNodes)
- foreach(CNode* pnode, vNodes)
- if (pnode != pfrom && (nHops < PUBLISH_HOPS || pnode->IsSubscribed(nChannel)))
- pnode->PushMessage("pub-cancel", nChannel, nHops, hash);
-
- AdvertErase(obj);
-}
-
-template<typename T>
-void AdvertRemoveSource(CNode* pfrom, unsigned int nChannel, unsigned int nHops, T& obj)
-{
- // Remove a source
- obj.setSources.erase(pfrom->addr.ip);
-
- // If no longer supported by any sources, cancel it
- if (obj.setSources.empty())
- AdvertStopPublish(pfrom, nChannel, nHops, obj);
-}
generated by cgit v1.2.3 (git 2.26.2) at 2024-10-31 20:48:45 +0000