Add RPC command uptime

- Used to track how long your QT or core wallet has been running

src/rpc/server.cpp

@@ -325,6 +325,7 @@ static const CRPCCommand vRPCCommands[] =
     /* Overall control/query calls */
     { "control",            "help",                   &help,                   true  },
     { "control",            "stop",                   &stop,                   true  },
+    { "control",            "uptime",                 &uptime,                 true  },
         /* Address index */
     { "addressindex",       "getaddressmempool",      &getaddressmempool,      true  },
     { "addressindex",       "getaddressutxos",        &getaddressutxos,        false },

src/rpc/server.h

@@ -217,6 +217,9 @@ extern UniValue znodelist(const JSONRPCRequest &request);
 extern UniValue znodebroadcast(const JSONRPCRequest &request);
 extern UniValue znsync(const JSONRPCRequest &request);
 
+extern UniValue uptime(const JSONRPCRequest &request);
+
+
 bool StartRPC();
 void InterruptRPC();
 void StopRPC();

src/util.cpp

@@ -109,6 +109,9 @@ bool fMasternodeMode = false;
 bool fLiteMode = false;
 int nWalletBackups = 10;
 
+// Application startup time (used for uptime calculation)
+const int64_t nStartupTime = GetTime();
+
 const char * const BITCOIN_CONF_FILENAME = "kiirocoin.conf";
 const char * const BITCOIN_PID_FILENAME = "kiirocoind.pid";
 
@@ -1036,3 +1039,9 @@ std::string CopyrightHolders(const std::string& strPrefix)
 
     return strCopyrightHolders;
 }
+
+// Obtain the application startup time (used for uptime calculation)
+int64_t GetStartupTime()
+{
+    return nStartupTime;
+}

src/util.h

@@ -92,6 +92,9 @@ inline int64_t roundint64(double d)
     return (int64_t)(d > 0 ? d + 0.5 : d - 0.5);
 }
 
+// Application startup time (used for uptime calculation)
+int64_t GetStartupTime();
+
 void SetupEnvironment();
 bool SetupNetworking();