Merge pull request #1549 from TheBlueMatt/addnoderpc

Addnode optimization and addnode access via RPC

src/bitcoinrpc.cpp

@@ -201,6 +201,8 @@ static const CRPCCommand vRPCCommands[] =
     { "getblockcount",          &getblockcount,          true,   false },
     { "getconnectioncount",     &getconnectioncount,     true,   false },
     { "getpeerinfo",            &getpeerinfo,            true,   false },
+    { "addnode",                &addnode,                true,   true },
+    { "getaddednodeinfo",       &getaddednodeinfo,       true,   true },
     { "getdifficulty",          &getdifficulty,          true,   false },
     { "getgenerate",            &getgenerate,            true,   false },
     { "setgenerate",            &setgenerate,            true,   false },
@@ -1179,6 +1181,7 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
     // Special case non-string parameter types
     //
     if (strMethod == "stop"                   && n > 0) ConvertTo<bool>(params[0]);
+    if (strMethod == "getaddednodeinfo"       && n > 0) ConvertTo<bool>(params[0]);
     if (strMethod == "setgenerate"            && n > 0) ConvertTo<bool>(params[0]);
     if (strMethod == "setgenerate"            && n > 1) ConvertTo<boost::int64_t>(params[1]);
     if (strMethod == "sendtoaddress"          && n > 1) ConvertTo<double>(params[1]);

src/bitcoinrpc.h

@@ -132,6 +132,8 @@ extern void EnsureWalletIsUnlocked();
 
 extern json_spirit::Value getconnectioncount(const json_spirit::Array& params, bool fHelp); // in rpcnet.cpp
 extern json_spirit::Value getpeerinfo(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value addnode(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value getaddednodeinfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value dumpprivkey(const json_spirit::Array& params, bool fHelp); // in rpcdump.cpp
 extern json_spirit::Value importprivkey(const json_spirit::Array& params, bool fHelp);
 

src/net.cpp

@@ -72,6 +72,9 @@ CCriticalSection cs_vOneShots;
 set<CNetAddr> setservAddNodeAddresses;
 CCriticalSection cs_setservAddNodeAddresses;
 
+vector<std::string> vAddedNodes;
+CCriticalSection cs_vAddedNodes;
+
 static CSemaphore *semOutbound = NULL;
 
 void AddOneShot(string strDest)
@@ -1523,16 +1526,26 @@ void ThreadOpenAddedConnections2(void* parg)
 {
     printf("ThreadOpenAddedConnections started\n");
 
-    if (mapArgs.count("-addnode") == 0)
-        return;
+    {
+        LOCK(cs_vAddedNodes);
+        vAddedNodes = mapMultiArgs["-addnode"];
+    }
 
     if (HaveNameProxy()) {
         while(!fShutdown) {
-            BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"]) {
+            list<string> lAddresses(0);
+            {
+                LOCK(cs_vAddedNodes);
+                BOOST_FOREACH(string& strAddNode, vAddedNodes)
+                    lAddresses.push_back(strAddNode);
+            }
+            BOOST_FOREACH(string& strAddNode, lAddresses) {
                 CAddress addr;
                 CSemaphoreGrant grant(*semOutbound);
                 OpenNetworkConnection(addr, &grant, strAddNode.c_str());
                 Sleep(500);
+                if (fShutdown)
+                    return;
             }
             vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
             Sleep(120000); // Retry every 2 minutes
@@ -1541,41 +1554,47 @@ void ThreadOpenAddedConnections2(void* parg)
         return;
     }
 
-    vector<vector<CService> > vservAddressesToAdd(0);
-    BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"])
+    for (unsigned int i = 0; true; i++)
     {
-        vector<CService> vservNode(0);
-        if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
+        list<string> lAddresses(0);
         {
-            vservAddressesToAdd.push_back(vservNode);
+            LOCK(cs_vAddedNodes);
+            BOOST_FOREACH(string& strAddNode, vAddedNodes)
+                lAddresses.push_back(strAddNode);
+        }
+
+        list<vector<CService> > lservAddressesToAdd(0);
+        BOOST_FOREACH(string& strAddNode, lAddresses)
+        {
+            vector<CService> vservNode(0);
+            if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
             {
-                LOCK(cs_setservAddNodeAddresses);
-                BOOST_FOREACH(CService& serv, vservNode)
-                    setservAddNodeAddresses.insert(serv);
+                lservAddressesToAdd.push_back(vservNode);
+                {
+                    LOCK(cs_setservAddNodeAddresses);
+                    BOOST_FOREACH(CService& serv, vservNode)
+                        setservAddNodeAddresses.insert(serv);
+                }
             }
         }
-    }
-    loop
-    {
-        vector<vector<CService> > vservConnectAddresses = vservAddressesToAdd;
         // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
         // (keeping in mind that addnode entries can have many IPs if fNameLookup)
         {
             LOCK(cs_vNodes);
             BOOST_FOREACH(CNode* pnode, vNodes)
-                for (vector<vector<CService> >::iterator it = vservConnectAddresses.begin(); it != vservConnectAddresses.end(); it++)
+                for (list<vector<CService> >::iterator it = lservAddressesToAdd.begin(); it != lservAddressesToAdd.end(); it++)
                     BOOST_FOREACH(CService& addrNode, *(it))
                         if (pnode->addr == addrNode)
                         {
-                            it = vservConnectAddresses.erase(it);
+                            it = lservAddressesToAdd.erase(it);
                             it--;
                             break;
                         }
         }
-        BOOST_FOREACH(vector<CService>& vserv, vservConnectAddresses)
+        BOOST_FOREACH(vector<CService>& vserv, lservAddressesToAdd)
         {
             CSemaphoreGrant grant(*semOutbound);
-            OpenNetworkConnection(CAddress(*(vserv.begin())), &grant);
+            OpenNetworkConnection(CAddress(vserv[i % vserv.size()]), &grant);
             Sleep(500);
             if (fShutdown)
                 return;

src/net.h

@@ -102,6 +102,9 @@ extern std::deque<std::pair<int64, CInv> > vRelayExpiration;
 extern CCriticalSection cs_mapRelay;
 extern std::map<CInv, int64> mapAlreadyAskedFor;
 
+extern std::vector<std::string> vAddedNodes;
+extern CCriticalSection cs_vAddedNodes;
+
 
 
 

src/rpcnet.cpp

@@ -65,3 +65,137 @@ Value getpeerinfo(const Array& params, bool fHelp)
     return ret;
 }
 
+Value addnode(const Array& params, bool fHelp)
+{
+    string strCommand;
+    if (params.size() == 2)
+        strCommand = params[1].get_str();
+    if (fHelp || params.size() != 2 ||
+        (strCommand != "onetry" && strCommand != "add" && strCommand != "remove"))
+        throw runtime_error(
+            "addnode <node> <add|remove|onetry>\n"
+            "Attempts add or remove <node> from the addnode list or try a connection to <node> once.");
+
+    string strNode = params[0].get_str();
+
+    if (strCommand == "onetry")
+    {
+        CAddress addr;
+        ConnectNode(addr, strNode.c_str());
+        return Value::null;
+    }
+
+    LOCK(cs_vAddedNodes);
+    vector<string>::iterator it = vAddedNodes.begin();
+    for(; it != vAddedNodes.end(); it++)
+        if (strNode == *it)
+            break;
+
+    if (strCommand == "add")
+    {
+        if (it != vAddedNodes.end())
+            throw JSONRPCError(-23, "Error: Node already added");
+        vAddedNodes.push_back(strNode);
+    }
+    else if(strCommand == "remove")
+    {
+        if (it == vAddedNodes.end())
+            throw JSONRPCError(-24, "Error: Node has not been added.");
+        vAddedNodes.erase(it);
+    }
+
+    return Value::null;
+}
+
+Value getaddednodeinfo(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 1 || params.size() > 2)
+        throw runtime_error(
+            "getaddednodeinfo <dns> [node]\n"
+            "Returns information about the given added node, or all added nodes\n"
+            "(note that onetry addnodes are not listed here)\n"
+            "If dns is false, only a list of added nodes will be provided,\n"
+            "otherwise connected information will also be available.");
+
+    bool fDns = params[0].get_bool();
+
+    list<string> laddedNodes(0);
+    if (params.size() == 1)
+    {
+        LOCK(cs_vAddedNodes);
+        BOOST_FOREACH(string& strAddNode, vAddedNodes)
+            laddedNodes.push_back(strAddNode);
+    }
+    else
+    {
+        string strNode = params[1].get_str();
+        LOCK(cs_vAddedNodes);
+        BOOST_FOREACH(string& strAddNode, vAddedNodes)
+            if (strAddNode == strNode)
+            {
+                laddedNodes.push_back(strAddNode);
+                break;
+            }
+        if (laddedNodes.size() == 0)
+            throw JSONRPCError(-24, "Error: Node has not been added.");
+    }
+
+    if (!fDns)
+    {
+        Object ret;
+        BOOST_FOREACH(string& strAddNode, laddedNodes)
+            ret.push_back(Pair("addednode", strAddNode));
+        return ret;
+    }
+
+    Array ret;
+
+    list<pair<string, vector<CService> > > laddedAddreses(0);
+    BOOST_FOREACH(string& strAddNode, laddedNodes)
+    {
+        vector<CService> vservNode(0);
+        if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
+            laddedAddreses.push_back(make_pair(strAddNode, vservNode));
+        else
+        {
+            Object obj;
+            obj.push_back(Pair("addednode", strAddNode));
+            obj.push_back(Pair("connected", false));
+            Array addresses;
+            obj.push_back(Pair("addresses", addresses));
+        }
+    }
+
+    LOCK(cs_vNodes);
+    for (list<pair<string, vector<CService> > >::iterator it = laddedAddreses.begin(); it != laddedAddreses.end(); it++)
+    {
+        Object obj;
+        obj.push_back(Pair("addednode", it->first));
+
+        Array addresses;
+        bool fConnected = false;
+        BOOST_FOREACH(CService& addrNode, it->second)
+        {
+            bool fFound = false;
+            Object node;
+            node.push_back(Pair("address", addrNode.ToString()));
+            BOOST_FOREACH(CNode* pnode, vNodes)
+                if (pnode->addr == addrNode)
+                {
+                    fFound = true;
+                    fConnected = true;
+                    node.push_back(Pair("connected", pnode->fInbound ? "inbound" : "outbound"));
+                    break;
+                }
+            if (!fFound)
+                node.push_back(Pair("connected", "false"));
+            addresses.push_back(node);
+        }
+        obj.push_back(Pair("connected", fConnected));
+        obj.push_back(Pair("addresses", addresses));
+        ret.push_back(obj);
+    }
+
+    return ret;
+}
+