scripted-diff: stop using the gArgs wrappers

They were temporary additions to ease the transition.

-BEGIN VERIFY SCRIPT-
find src/ -name "*.cpp" ! -wholename "src/util.h" ! -wholename "src/util.cpp" | xargs perl -i -pe 's/(?<!\.)(ParseParameters|ReadConfigFile|IsArgSet|(Soft|Force)?(Get|Set)(|Bool|)Arg(s)?)\(/gArgs.\1(/g'
-END VERIFY SCRIPT-

39 files changed, 346 insertions, 346 deletions

diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
index 0b74f31bfe..8bec0289f5 100644
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -79,10 +79,10 @@ static int AppInitRPC(int argc, char* argv[])
     //
     // Parameters
     //
-    ParseParameters(argc, argv);
-    if (argc<2 || IsArgSet("-?") || IsArgSet("-h") || IsArgSet("-help") || IsArgSet("-version")) {
+    gArgs.ParseParameters(argc, argv);
+    if (argc<2 || gArgs.IsArgSet("-?") || gArgs.IsArgSet("-h") || gArgs.IsArgSet("-help") || gArgs.IsArgSet("-version")) {
         std::string strUsage = strprintf(_("%s RPC client version"), _(PACKAGE_NAME)) + " " + FormatFullVersion() + "\n";
-        if (!IsArgSet("-version")) {
+        if (!gArgs.IsArgSet("-version")) {
             strUsage += "\n" + _("Usage:") + "\n" +
                   "  bitcoin-cli [options] <command> [params]  " + strprintf(_("Send command to %s"), _(PACKAGE_NAME)) + "\n" +
                   "  bitcoin-cli [options] -named <command> [name=value] ... " + strprintf(_("Send command to %s (with named arguments)"), _(PACKAGE_NAME)) + "\n" +
@@ -100,11 +100,11 @@ static int AppInitRPC(int argc, char* argv[])
         return EXIT_SUCCESS;
     }
     if (!fs::is_directory(GetDataDir(false))) {
-        fprintf(stderr, "Error: Specified data directory \"%s\" does not exist.\n", GetArg("-datadir", "").c_str());
+        fprintf(stderr, "Error: Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", "").c_str());
         return EXIT_FAILURE;
     }
     try {
-        ReadConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME));
+        gArgs.ReadConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME));
     } catch (const std::exception& e) {
         fprintf(stderr,"Error reading configuration file: %s\n", e.what());
         return EXIT_FAILURE;
@@ -116,7 +116,7 @@ static int AppInitRPC(int argc, char* argv[])
         fprintf(stderr, "Error: %s\n", e.what());
         return EXIT_FAILURE;
     }
-    if (GetBoolArg("-rpcssl", false))
+    if (gArgs.GetBoolArg("-rpcssl", false))
     {
         fprintf(stderr, "Error: SSL mode for RPC (-rpcssl) is no longer supported.\n");
         return EXIT_FAILURE;
@@ -198,15 +198,15 @@ UniValue CallRPC(const std::string& strMethod, const UniValue& params)
     //     2. port in -rpcconnect (ie following : in ipv4 or ]: in ipv6)
     //     3. default port for chain
     int port = BaseParams().RPCPort();
-    SplitHostPort(GetArg("-rpcconnect", DEFAULT_RPCCONNECT), port, host);
-    port = GetArg("-rpcport", port);
+    SplitHostPort(gArgs.GetArg("-rpcconnect", DEFAULT_RPCCONNECT), port, host);
+    port = gArgs.GetArg("-rpcport", port);
 
     // Obtain event base
     raii_event_base base = obtain_event_base();
 
     // Synchronously look up hostname
     raii_evhttp_connection evcon = obtain_evhttp_connection_base(base.get(), host, port);
-    evhttp_connection_set_timeout(evcon.get(), GetArg("-rpcclienttimeout", DEFAULT_HTTP_CLIENT_TIMEOUT));
+    evhttp_connection_set_timeout(evcon.get(), gArgs.GetArg("-rpcclienttimeout", DEFAULT_HTTP_CLIENT_TIMEOUT));
 
     HTTPReply response;
     raii_evhttp_request req = obtain_evhttp_request(http_request_done, (void*)&response);
@@ -218,16 +218,16 @@ UniValue CallRPC(const std::string& strMethod, const UniValue& params)
 
     // Get credentials
     std::string strRPCUserColonPass;
-    if (GetArg("-rpcpassword", "") == "") {
+    if (gArgs.GetArg("-rpcpassword", "") == "") {
         // Try fall back to cookie-based authentication if no password is provided
         if (!GetAuthCookie(&strRPCUserColonPass)) {
             throw std::runtime_error(strprintf(
                 _("Could not locate RPC credentials. No authentication cookie could be found, and no rpcpassword is set in the configuration file (%s)"),
-                    GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string().c_str()));
+                    GetConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME)).string().c_str()));
 
         }
     } else {
-        strRPCUserColonPass = GetArg("-rpcuser", "") + ":" + GetArg("-rpcpassword", "");
+        strRPCUserColonPass = gArgs.GetArg("-rpcuser", "") + ":" + gArgs.GetArg("-rpcpassword", "");
     }
 
     struct evkeyvalq* output_headers = evhttp_request_get_output_headers(req.get());
@@ -244,7 +244,7 @@ UniValue CallRPC(const std::string& strMethod, const UniValue& params)
 
     // check if we should use a special wallet endpoint
     std::string endpoint = "/";
-    std::string walletName = GetArg("-rpcwallet", "");
+    std::string walletName = gArgs.GetArg("-rpcwallet", "");
     if (!walletName.empty()) {
         char *encodedURI = evhttp_uriencode(walletName.c_str(), walletName.size(), false);
         if (encodedURI) {
@@ -294,7 +294,7 @@ int CommandLineRPC(int argc, char *argv[])
             argv++;
         }
         std::vector<std::string> args = std::vector<std::string>(&argv[1], &argv[argc]);
-        if (GetBoolArg("-stdin", false)) {
+        if (gArgs.GetBoolArg("-stdin", false)) {
             // Read one arg per line from stdin and append
             std::string line;
             while (std::getline(std::cin,line))
@@ -306,14 +306,14 @@ int CommandLineRPC(int argc, char *argv[])
         args.erase(args.begin()); // Remove trailing method name from arguments vector
 
         UniValue params;
-        if(GetBoolArg("-named", DEFAULT_NAMED)) {
+        if(gArgs.GetBoolArg("-named", DEFAULT_NAMED)) {
             params = RPCConvertNamedValues(strMethod, args);
         } else {
             params = RPCConvertValues(strMethod, args);
         }
 
         // Execute and handle connection failures with -rpcwait
-        const bool fWait = GetBoolArg("-rpcwait", false);
+        const bool fWait = gArgs.GetBoolArg("-rpcwait", false);
         do {
             try {
                 const UniValue reply = CallRPC(strMethod, params);
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index e5ea9f3228..cff90d13af 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -39,7 +39,7 @@ static int AppInitRawTx(int argc, char* argv[])
     //
     // Parameters
     //
-    ParseParameters(argc, argv);
+    gArgs.ParseParameters(argc, argv);
 
     // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
     try {
@@ -49,9 +49,9 @@ static int AppInitRawTx(int argc, char* argv[])
         return EXIT_FAILURE;
     }
 
-    fCreateBlank = GetBoolArg("-create", false);
+    fCreateBlank = gArgs.GetBoolArg("-create", false);
 
-    if (argc<2 || IsArgSet("-?") || IsArgSet("-h") || IsArgSet("-help"))
+    if (argc<2 || gArgs.IsArgSet("-?") || gArgs.IsArgSet("-h") || gArgs.IsArgSet("-help"))
     {
         // First part of help message is specific to this utility
         std::string strUsage = strprintf(_("%s bitcoin-tx utility version"), _(PACKAGE_NAME)) + " " + FormatFullVersion() + "\n\n" +
@@ -737,9 +737,9 @@ static void OutputTxHex(const CTransaction& tx)
 
 static void OutputTx(const CTransaction& tx)
 {
-    if (GetBoolArg("-json", false))
+    if (gArgs.GetBoolArg("-json", false))
         OutputTxJSON(tx);
-    else if (GetBoolArg("-txid", false))
+    else if (gArgs.GetBoolArg("-txid", false))
         OutputTxHash(tx);
     else
         OutputTxHex(tx);
diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index eaef7a903b..543eba0e69 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -71,14 +71,14 @@ bool AppInit(int argc, char* argv[])
     // Parameters
     //
     // If Qt is used, parameters/bitcoin.conf are parsed in qt/bitcoin.cpp's main()
-    ParseParameters(argc, argv);
+    gArgs.ParseParameters(argc, argv);
 
     // Process help and version before taking care about datadir
-    if (IsArgSet("-?") || IsArgSet("-h") ||  IsArgSet("-help") || IsArgSet("-version"))
+    if (gArgs.IsArgSet("-?") || gArgs.IsArgSet("-h") ||  gArgs.IsArgSet("-help") || gArgs.IsArgSet("-version"))
     {
         std::string strUsage = strprintf(_("%s Daemon"), _(PACKAGE_NAME)) + " " + _("version") + " " + FormatFullVersion() + "\n";
 
-        if (IsArgSet("-version"))
+        if (gArgs.IsArgSet("-version"))
         {
             strUsage += FormatParagraph(LicenseInfo());
         }
@@ -98,12 +98,12 @@ bool AppInit(int argc, char* argv[])
     {
         if (!fs::is_directory(GetDataDir(false)))
         {
-            fprintf(stderr, "Error: Specified data directory \"%s\" does not exist.\n", GetArg("-datadir", "").c_str());
+            fprintf(stderr, "Error: Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", "").c_str());
             return false;
         }
         try
         {
-            ReadConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME));
+            gArgs.ReadConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME));
         } catch (const std::exception& e) {
             fprintf(stderr,"Error reading configuration file: %s\n", e.what());
             return false;
@@ -125,7 +125,7 @@ bool AppInit(int argc, char* argv[])
         }
 
         // -server defaults to true for bitcoind but not for the GUI so do this here
-        SoftSetBoolArg("-server", true);
+        gArgs.SoftSetBoolArg("-server", true);
         // Set this early so that parameter interactions go to console
         InitLogging();
         InitParameterInteraction();
@@ -144,7 +144,7 @@ bool AppInit(int argc, char* argv[])
             // InitError will have been called with detailed error, which ends up on console
             exit(EXIT_FAILURE);
         }
-        if (GetBoolArg("-daemon", false))
+        if (gArgs.GetBoolArg("-daemon", false))
         {
 #if HAVE_DECL_DAEMON
             fprintf(stdout, "Bitcoin server starting\n");
diff --git a/src/chainparamsbase.cpp b/src/chainparamsbase.cpp
index 43c9a13c54..224c9eb0ea 100644
--- a/src/chainparamsbase.cpp
+++ b/src/chainparamsbase.cpp
@@ -89,8 +89,8 @@ void SelectBaseParams(const std::string& chain)
 
 std::string ChainNameFromCommandLine()
 {
-    bool fRegTest = GetBoolArg("-regtest", false);
-    bool fTestNet = GetBoolArg("-testnet", false);
+    bool fRegTest = gArgs.GetBoolArg("-regtest", false);
+    bool fTestNet = gArgs.GetBoolArg("-testnet", false);
 
     if (fTestNet && fRegTest)
         throw std::runtime_error("Invalid combination of -regtest and -testnet.");
diff --git a/src/dbwrapper.cpp b/src/dbwrapper.cpp
index 27767f90b4..3e72c5bb9b 100644
--- a/src/dbwrapper.cpp
+++ b/src/dbwrapper.cpp
@@ -115,7 +115,7 @@ CDBWrapper::CDBWrapper(const fs::path& path, size_t nCacheSize, bool fMemory, bo
     dbwrapper_private::HandleError(status);
     LogPrintf("Opened LevelDB successfully\n");
 
-    if (GetBoolArg("-forcecompactdb", false)) {
+    if (gArgs.GetBoolArg("-forcecompactdb", false)) {
         LogPrintf("Starting database compaction of %s\n", path.string());
         pdb->CompactRange(nullptr, nullptr);
         LogPrintf("Finished database compaction of %s\n", path.string());
diff --git a/src/httprpc.cpp b/src/httprpc.cpp
index 69c3e3f49f..dd219c7291 100644
--- a/src/httprpc.cpp
+++ b/src/httprpc.cpp
@@ -210,7 +210,7 @@ static bool HTTPReq_JSONRPC(HTTPRequest* req, const std::string &)
 
 static bool InitRPCAuthentication()
 {
-    if (GetArg("-rpcpassword", "") == "")
+    if (gArgs.GetArg("-rpcpassword", "") == "")
     {
         LogPrintf("No rpcpassword set - using random cookie authentication\n");
         if (!GenerateAuthCookie(&strRPCUserColonPass)) {
@@ -221,7 +221,7 @@ static bool InitRPCAuthentication()
         }
     } else {
         LogPrintf("Config options rpcuser and rpcpassword will soon be deprecated. Locally-run instances may remove rpcuser to use cookie-based auth, or may be replaced with rpcauth. Please see share/rpcuser for rpcauth auth generation.\n");
-        strRPCUserColonPass = GetArg("-rpcuser", "") + ":" + GetArg("-rpcpassword", "");
+        strRPCUserColonPass = gArgs.GetArg("-rpcuser", "") + ":" + gArgs.GetArg("-rpcpassword", "");
     }
     return true;
 }
diff --git a/src/httpserver.cpp b/src/httpserver.cpp
index 5adfca4094..86b37f79bb 100644
--- a/src/httpserver.cpp
+++ b/src/httpserver.cpp
@@ -309,14 +309,14 @@ static bool ThreadHTTP(struct event_base* base, struct evhttp* http)
 /** Bind HTTP server to specified addresses */
 static bool HTTPBindAddresses(struct evhttp* http)
 {
-    int defaultPort = GetArg("-rpcport", BaseParams().RPCPort());
+    int defaultPort = gArgs.GetArg("-rpcport", BaseParams().RPCPort());
     std::vector<std::pair<std::string, uint16_t> > endpoints;
 
     // Determine what addresses to bind to
-    if (!IsArgSet("-rpcallowip")) { // Default to loopback if not allowing external IPs
+    if (!gArgs.IsArgSet("-rpcallowip")) { // Default to loopback if not allowing external IPs
         endpoints.push_back(std::make_pair("::1", defaultPort));
         endpoints.push_back(std::make_pair("127.0.0.1", defaultPort));
-        if (IsArgSet("-rpcbind")) {
+        if (gArgs.IsArgSet("-rpcbind")) {
             LogPrintf("WARNING: option -rpcbind was ignored because -rpcallowip was not specified, refusing to allow everyone to connect\n");
         }
     } else if (gArgs.IsArgSet("-rpcbind")) { // Specific bind address
@@ -369,7 +369,7 @@ bool InitHTTPServer()
     if (!InitHTTPAllowList())
         return false;
 
-    if (GetBoolArg("-rpcssl", false)) {
+    if (gArgs.GetBoolArg("-rpcssl", false)) {
         uiInterface.ThreadSafeMessageBox(
             "SSL mode for RPC (-rpcssl) is no longer supported.",
             "", CClientUIInterface::MSG_ERROR);
@@ -401,7 +401,7 @@ bool InitHTTPServer()
         return false;
     }
 
-    evhttp_set_timeout(http, GetArg("-rpcservertimeout", DEFAULT_HTTP_SERVER_TIMEOUT));
+    evhttp_set_timeout(http, gArgs.GetArg("-rpcservertimeout", DEFAULT_HTTP_SERVER_TIMEOUT));
     evhttp_set_max_headers_size(http, MAX_HEADERS_SIZE);
     evhttp_set_max_body_size(http, MAX_SIZE);
     evhttp_set_gencb(http, http_request_cb, nullptr);
@@ -412,7 +412,7 @@ bool InitHTTPServer()
     }
 
     LogPrint(BCLog::HTTP, "Initialized HTTP server\n");
-    int workQueueDepth = std::max((long)GetArg("-rpcworkqueue", DEFAULT_HTTP_WORKQUEUE), 1L);
+    int workQueueDepth = std::max((long)gArgs.GetArg("-rpcworkqueue", DEFAULT_HTTP_WORKQUEUE), 1L);
     LogPrintf("HTTP: creating work queue of depth %d\n", workQueueDepth);
 
     workQueue = new WorkQueue<HTTPClosure>(workQueueDepth);
@@ -442,7 +442,7 @@ std::future<bool> threadResult;
 bool StartHTTPServer()
 {
     LogPrint(BCLog::HTTP, "Starting HTTP server\n");
-    int rpcThreads = std::max((long)GetArg("-rpcthreads", DEFAULT_HTTP_THREADS), 1L);
+    int rpcThreads = std::max((long)gArgs.GetArg("-rpcthreads", DEFAULT_HTTP_THREADS), 1L);
     LogPrintf("HTTP: starting %d worker threads\n", rpcThreads);
     std::packaged_task<bool(event_base*, evhttp*)> task(ThreadHTTP);
     threadResult = task.get_future();
diff --git a/src/init.cpp b/src/init.cpp
index cddb42c0ee..d79c2967b9 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -199,7 +199,7 @@ void Shutdown()
 
     StopTorControl();
     UnregisterNodeSignals(GetNodeSignals());
-    if (fDumpMempoolLater && GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
+    if (fDumpMempoolLater && gArgs.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
         DumpMempool();
     }
 
@@ -321,7 +321,7 @@ void OnRPCPreCommand(const CRPCCommand& cmd)
 {
     // Observe safe mode
     std::string strWarning = GetWarnings("rpc");
-    if (strWarning != "" && !GetBoolArg("-disablesafemode", DEFAULT_DISABLE_SAFEMODE) &&
+    if (strWarning != "" && !gArgs.GetBoolArg("-disablesafemode", DEFAULT_DISABLE_SAFEMODE) &&
         !cmd.okSafeMode)
         throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, std::string("Safe mode: ") + strWarning);
 }
@@ -332,7 +332,7 @@ std::string HelpMessage(HelpMessageMode mode)
     const auto testnetBaseParams = CreateBaseChainParams(CBaseChainParams::TESTNET);
     const auto defaultChainParams = CreateChainParams(CBaseChainParams::MAIN);
     const auto testnetChainParams = CreateChainParams(CBaseChainParams::TESTNET);
-    const bool showDebug = GetBoolArg("-help-debug", false);
+    const bool showDebug = gArgs.GetBoolArg("-help-debug", false);
 
     // When adding new options to the categories, please keep and ensure alphabetical ordering.
     // Do not translate _(...) -help-debug options, Many technical terms, and only a very small audience, so is unnecessary stress to translators.
@@ -546,7 +546,7 @@ static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex
     if (initialSync || !pBlockIndex)
         return;
 
-    std::string strCmd = GetArg("-blocknotify", "");
+    std::string strCmd = gArgs.GetArg("-blocknotify", "");
 
     boost::replace_all(strCmd, "%s", pBlockIndex->GetBlockHash().GetHex());
     boost::thread t(runCommand, strCmd); // thread runs free
@@ -683,12 +683,12 @@ void ThreadImport(std::vector<fs::path> vImportFiles)
         StartShutdown();
     }
 
-    if (GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT)) {
+    if (gArgs.GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT)) {
         LogPrintf("Stopping after block import\n");
         StartShutdown();
     }
     } // End scope of CImportingNow
-    if (GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
+    if (gArgs.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
         LoadMempool();
         fDumpMempoolLater = !fRequestShutdown;
     }
@@ -727,7 +727,7 @@ bool AppInitServers(boost::thread_group& threadGroup)
         return false;
     if (!StartHTTPRPC())
         return false;
-    if (GetBoolArg("-rest", DEFAULT_REST_ENABLE) && !StartREST())
+    if (gArgs.GetBoolArg("-rest", DEFAULT_REST_ENABLE) && !StartREST())
         return false;
     if (!StartHTTPServer())
         return false;
@@ -739,61 +739,61 @@ void InitParameterInteraction()
 {
     // when specifying an explicit binding address, you want to listen on it
     // even when -connect or -proxy is specified
-    if (IsArgSet("-bind")) {
-        if (SoftSetBoolArg("-listen", true))
+    if (gArgs.IsArgSet("-bind")) {
+        if (gArgs.SoftSetBoolArg("-listen", true))
             LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__);
     }
-    if (IsArgSet("-whitebind")) {
-        if (SoftSetBoolArg("-listen", true))
+    if (gArgs.IsArgSet("-whitebind")) {
+        if (gArgs.SoftSetBoolArg("-listen", true))
             LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__);
     }
 
     if (gArgs.IsArgSet("-connect")) {
         // when only connecting to trusted nodes, do not seed via DNS, or listen by default
-        if (SoftSetBoolArg("-dnsseed", false))
+        if (gArgs.SoftSetBoolArg("-dnsseed", false))
             LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__);
-        if (SoftSetBoolArg("-listen", false))
+        if (gArgs.SoftSetBoolArg("-listen", false))
             LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__);
     }
 
-    if (IsArgSet("-proxy")) {
+    if (gArgs.IsArgSet("-proxy")) {
         // to protect privacy, do not listen by default if a default proxy server is specified
-        if (SoftSetBoolArg("-listen", false))
+        if (gArgs.SoftSetBoolArg("-listen", false))
             LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__);
         // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1
         // to listen locally, so don't rely on this happening through -listen below.
-        if (SoftSetBoolArg("-upnp", false))
+        if (gArgs.SoftSetBoolArg("-upnp", false))
             LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__);
         // to protect privacy, do not discover addresses by default
-        if (SoftSetBoolArg("-discover", false))
+        if (gArgs.SoftSetBoolArg("-discover", false))
             LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__);
     }
 
-    if (!GetBoolArg("-listen", DEFAULT_LISTEN)) {
+    if (!gArgs.GetBoolArg("-listen", DEFAULT_LISTEN)) {
         // do not map ports or try to retrieve public IP when not listening (pointless)
-        if (SoftSetBoolArg("-upnp", false))
+        if (gArgs.SoftSetBoolArg("-upnp", false))
             LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__);
-        if (SoftSetBoolArg("-discover", false))
+        if (gArgs.SoftSetBoolArg("-discover", false))
             LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__);
-        if (SoftSetBoolArg("-listenonion", false))
+        if (gArgs.SoftSetBoolArg("-listenonion", false))
             LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__);
     }
 
-    if (IsArgSet("-externalip")) {
+    if (gArgs.IsArgSet("-externalip")) {
         // if an explicit public IP is specified, do not try to find others
-        if (SoftSetBoolArg("-discover", false))
+        if (gArgs.SoftSetBoolArg("-discover", false))
             LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__);
     }
 
     // disable whitelistrelay in blocksonly mode
-    if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) {
-        if (SoftSetBoolArg("-whitelistrelay", false))
+    if (gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) {
+        if (gArgs.SoftSetBoolArg("-whitelistrelay", false))
             LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__);
     }
 
     // Forcing relay from whitelisted hosts implies we will accept relays from them in the first place.
-    if (GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
-        if (SoftSetBoolArg("-whitelistrelay", true))
+    if (gArgs.GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
+        if (gArgs.SoftSetBoolArg("-whitelistrelay", true))
             LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__);
     }
 }
@@ -805,10 +805,10 @@ static std::string ResolveErrMsg(const char * const optname, const std::string&
 
 void InitLogging()
 {
-    fPrintToConsole = GetBoolArg("-printtoconsole", false);
-    fLogTimestamps = GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS);
-    fLogTimeMicros = GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS);
-    fLogIPs = GetBoolArg("-logips", DEFAULT_LOGIPS);
+    fPrintToConsole = gArgs.GetBoolArg("-printtoconsole", false);
+    fLogTimestamps = gArgs.GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS);
+    fLogTimeMicros = gArgs.GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS);
+    fLogIPs = gArgs.GetBoolArg("-logips", DEFAULT_LOGIPS);
 
     LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
     LogPrintf("Bitcoin version %s\n", FormatFullVersion());
@@ -865,7 +865,7 @@ bool AppInitBasicSetup()
         return InitError("Initializing networking failed");
 
 #ifndef WIN32
-    if (!GetBoolArg("-sysperms", false)) {
+    if (!gArgs.GetBoolArg("-sysperms", false)) {
         umask(077);
     }
 
@@ -893,8 +893,8 @@ bool AppInitParameterInteraction()
     // also see: InitParameterInteraction()
 
     // if using block pruning, then disallow txindex
-    if (GetArg("-prune", 0)) {
-        if (GetBoolArg("-txindex", DEFAULT_TXINDEX))
+    if (gArgs.GetArg("-prune", 0)) {
+        if (gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX))
             return InitError(_("Prune mode is incompatible with -txindex."));
     }
 
@@ -906,7 +906,7 @@ bool AppInitParameterInteraction()
 
     // Make sure enough file descriptors are available
     int nBind = std::max(nUserBind, size_t(1));
-    nUserMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS);
+    nUserMaxConnections = gArgs.GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS);
     nMaxConnections = std::max(nUserMaxConnections, 0);
 
     // Trim requested connection counts, to fit into system limitations
@@ -947,55 +947,55 @@ bool AppInitParameterInteraction()
     }
 
     // Check for -debugnet
-    if (GetBoolArg("-debugnet", false))
+    if (gArgs.GetBoolArg("-debugnet", false))
         InitWarning(_("Unsupported argument -debugnet ignored, use -debug=net."));
     // Check for -socks - as this is a privacy risk to continue, exit here
-    if (IsArgSet("-socks"))
+    if (gArgs.IsArgSet("-socks"))
         return InitError(_("Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported."));
     // Check for -tor - as this is a privacy risk to continue, exit here
-    if (GetBoolArg("-tor", false))
+    if (gArgs.GetBoolArg("-tor", false))
         return InitError(_("Unsupported argument -tor found, use -onion."));
 
-    if (GetBoolArg("-benchmark", false))
+    if (gArgs.GetBoolArg("-benchmark", false))
         InitWarning(_("Unsupported argument -benchmark ignored, use -debug=bench."));
 
-    if (GetBoolArg("-whitelistalwaysrelay", false))
+    if (gArgs.GetBoolArg("-whitelistalwaysrelay", false))
         InitWarning(_("Unsupported argument -whitelistalwaysrelay ignored, use -whitelistrelay and/or -whitelistforcerelay."));
 
-    if (IsArgSet("-blockminsize"))
+    if (gArgs.IsArgSet("-blockminsize"))
         InitWarning("Unsupported argument -blockminsize ignored.");
 
     // Checkmempool and checkblockindex default to true in regtest mode
-    int ratio = std::min<int>(std::max<int>(GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000);
+    int ratio = std::min<int>(std::max<int>(gArgs.GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000);
     if (ratio != 0) {
         mempool.setSanityCheck(1.0 / ratio);
     }
-    fCheckBlockIndex = GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks());
-    fCheckpointsEnabled = GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED);
+    fCheckBlockIndex = gArgs.GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks());
+    fCheckpointsEnabled = gArgs.GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED);
 
-    hashAssumeValid = uint256S(GetArg("-assumevalid", chainparams.GetConsensus().defaultAssumeValid.GetHex()));
+    hashAssumeValid = uint256S(gArgs.GetArg("-assumevalid", chainparams.GetConsensus().defaultAssumeValid.GetHex()));
     if (!hashAssumeValid.IsNull())
         LogPrintf("Assuming ancestors of block %s have valid signatures.\n", hashAssumeValid.GetHex());
     else
         LogPrintf("Validating signatures for all blocks.\n");
 
     // mempool limits
-    int64_t nMempoolSizeMax = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
-    int64_t nMempoolSizeMin = GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) * 1000 * 40;
+    int64_t nMempoolSizeMax = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
+    int64_t nMempoolSizeMin = gArgs.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) * 1000 * 40;
     if (nMempoolSizeMax < 0 || nMempoolSizeMax < nMempoolSizeMin)
         return InitError(strprintf(_("-maxmempool must be at least %d MB"), std::ceil(nMempoolSizeMin / 1000000.0)));
     // incremental relay fee sets the minimum feerate increase necessary for BIP 125 replacement in the mempool
     // and the amount the mempool min fee increases above the feerate of txs evicted due to mempool limiting.
-    if (IsArgSet("-incrementalrelayfee"))
+    if (gArgs.IsArgSet("-incrementalrelayfee"))
     {
         CAmount n = 0;
-        if (!ParseMoney(GetArg("-incrementalrelayfee", ""), n))
-            return InitError(AmountErrMsg("incrementalrelayfee", GetArg("-incrementalrelayfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-incrementalrelayfee", ""), n))
+            return InitError(AmountErrMsg("incrementalrelayfee", gArgs.GetArg("-incrementalrelayfee", "")));
         incrementalRelayFee = CFeeRate(n);
     }
 
     // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
-    nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
+    nScriptCheckThreads = gArgs.GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
     if (nScriptCheckThreads <= 0)
         nScriptCheckThreads += GetNumCores();
     if (nScriptCheckThreads <= 1)
@@ -1004,7 +1004,7 @@ bool AppInitParameterInteraction()
         nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS;
 
     // block pruning; get the amount of disk space (in MiB) to allot for block & undo files
-    int64_t nPruneArg = GetArg("-prune", 0);
+    int64_t nPruneArg = gArgs.GetArg("-prune", 0);
     if (nPruneArg < 0) {
         return InitError(_("Prune cannot be configured with a negative value."));
     }
@@ -1026,14 +1026,14 @@ bool AppInitParameterInteraction()
     RegisterWalletRPCCommands(tableRPC);
 #endif
 
-    nConnectTimeout = GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT);
+    nConnectTimeout = gArgs.GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT);
     if (nConnectTimeout <= 0)
         nConnectTimeout = DEFAULT_CONNECT_TIMEOUT;
 
-    if (IsArgSet("-minrelaytxfee")) {
+    if (gArgs.IsArgSet("-minrelaytxfee")) {
         CAmount n = 0;
-        if (!ParseMoney(GetArg("-minrelaytxfee", ""), n)) {
-            return InitError(AmountErrMsg("minrelaytxfee", GetArg("-minrelaytxfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-minrelaytxfee", ""), n)) {
+            return InitError(AmountErrMsg("minrelaytxfee", gArgs.GetArg("-minrelaytxfee", "")));
         }
         // High fee check is done afterward in CWallet::ParameterInteraction()
         ::minRelayTxFee = CFeeRate(n);
@@ -1045,55 +1045,55 @@ bool AppInitParameterInteraction()
 
     // Sanity check argument for min fee for including tx in block
     // TODO: Harmonize which arguments need sanity checking and where that happens
-    if (IsArgSet("-blockmintxfee"))
+    if (gArgs.IsArgSet("-blockmintxfee"))
     {
         CAmount n = 0;
-        if (!ParseMoney(GetArg("-blockmintxfee", ""), n))
-            return InitError(AmountErrMsg("blockmintxfee", GetArg("-blockmintxfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-blockmintxfee", ""), n))
+            return InitError(AmountErrMsg("blockmintxfee", gArgs.GetArg("-blockmintxfee", "")));
     }
 
     // Feerate used to define dust.  Shouldn't be changed lightly as old
     // implementations may inadvertently create non-standard transactions
-    if (IsArgSet("-dustrelayfee"))
+    if (gArgs.IsArgSet("-dustrelayfee"))
     {
         CAmount n = 0;
-        if (!ParseMoney(GetArg("-dustrelayfee", ""), n) || 0 == n)
-            return InitError(AmountErrMsg("dustrelayfee", GetArg("-dustrelayfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-dustrelayfee", ""), n) || 0 == n)
+            return InitError(AmountErrMsg("dustrelayfee", gArgs.GetArg("-dustrelayfee", "")));
         dustRelayFee = CFeeRate(n);
     }
 
-    fRequireStandard = !GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard());
+    fRequireStandard = !gArgs.GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard());
     if (chainparams.RequireStandard() && !fRequireStandard)
         return InitError(strprintf("acceptnonstdtxn is not currently supported for %s chain", chainparams.NetworkIDString()));
-    nBytesPerSigOp = GetArg("-bytespersigop", nBytesPerSigOp);
+    nBytesPerSigOp = gArgs.GetArg("-bytespersigop", nBytesPerSigOp);
 
 #ifdef ENABLE_WALLET
     if (!CWallet::ParameterInteraction())
         return false;
 #endif
 
-    fIsBareMultisigStd = GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG);
-    fAcceptDatacarrier = GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER);
-    nMaxDatacarrierBytes = GetArg("-datacarriersize", nMaxDatacarrierBytes);
+    fIsBareMultisigStd = gArgs.GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG);
+    fAcceptDatacarrier = gArgs.GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER);
+    nMaxDatacarrierBytes = gArgs.GetArg("-datacarriersize", nMaxDatacarrierBytes);
 
     // Option to startup with mocktime set (used for regression testing):
-    SetMockTime(GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op
+    SetMockTime(gArgs.GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op
 
-    if (GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS))
+    if (gArgs.GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS))
         nLocalServices = ServiceFlags(nLocalServices | NODE_BLOOM);
 
-    if (GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) < 0)
+    if (gArgs.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) < 0)
         return InitError("rpcserialversion must be non-negative.");
 
-    if (GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) > 1)
+    if (gArgs.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) > 1)
         return InitError("unknown rpcserialversion requested.");
 
-    nMaxTipAge = GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE);
+    nMaxTipAge = gArgs.GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE);
 
-    fEnableReplacement = GetBoolArg("-mempoolreplacement", DEFAULT_ENABLE_REPLACEMENT);
-    if ((!fEnableReplacement) && IsArgSet("-mempoolreplacement")) {
+    fEnableReplacement = gArgs.GetBoolArg("-mempoolreplacement", DEFAULT_ENABLE_REPLACEMENT);
+    if ((!fEnableReplacement) && gArgs.IsArgSet("-mempoolreplacement")) {
         // Minimal effort at forwards compatibility
-        std::string strReplacementModeList = GetArg("-mempoolreplacement", "");  // default is impossible
+        std::string strReplacementModeList = gArgs.GetArg("-mempoolreplacement", "");  // default is impossible
         std::vector<std::string> vstrReplacementModes;
         boost::split(vstrReplacementModes, strReplacementModeList, boost::is_any_of(","));
         fEnableReplacement = (std::find(vstrReplacementModes.begin(), vstrReplacementModes.end(), "fee") != vstrReplacementModes.end());
@@ -1198,7 +1198,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
 #ifndef WIN32
     CreatePidFile(GetPidFile(), getpid());
 #endif
-    if (GetBoolArg("-shrinkdebugfile", logCategories == BCLog::NONE)) {
+    if (gArgs.GetBoolArg("-shrinkdebugfile", logCategories == BCLog::NONE)) {
         // Do this first since it both loads a bunch of debug.log into memory,
         // and because this needs to happen before any other debug.log printing
         ShrinkDebugFile();
@@ -1211,7 +1211,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
         LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()));
     LogPrintf("Default data directory %s\n", GetDefaultDataDir().string());
     LogPrintf("Using data directory %s\n", GetDataDir().string());
-    LogPrintf("Using config file %s\n", GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string());
+    LogPrintf("Using config file %s\n", GetConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME)).string());
     LogPrintf("Using at most %i automatic connections (%i file descriptors available)\n", nMaxConnections, nFD);
 
     InitSignatureCache();
@@ -1234,7 +1234,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
      * that the server is there and will be ready later).  Warmup mode will
      * be disabled when initialisation is finished.
      */
-    if (GetBoolArg("-server", false))
+    if (gArgs.GetBoolArg("-server", false))
     {
         uiInterface.InitMessage.connect(SetRPCWarmupStatus);
         if (!AppInitServers(threadGroup))
@@ -1291,12 +1291,12 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     }
 
     // Check for host lookup allowed before parsing any network related parameters
-    fNameLookup = GetBoolArg("-dns", DEFAULT_NAME_LOOKUP);
+    fNameLookup = gArgs.GetBoolArg("-dns", DEFAULT_NAME_LOOKUP);
 
-    bool proxyRandomize = GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE);
+    bool proxyRandomize = gArgs.GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE);
     // -proxy sets a proxy for all outgoing network traffic
     // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default
-    std::string proxyArg = GetArg("-proxy", "");
+    std::string proxyArg = gArgs.GetArg("-proxy", "");
     SetLimited(NET_TOR);
     if (proxyArg != "" && proxyArg != "0") {
         CService proxyAddr;
@@ -1318,7 +1318,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     // -onion can be used to set only a proxy for .onion, or override normal proxy for .onion addresses
     // -noonion (or -onion=0) disables connecting to .onion entirely
     // An empty string is used to not override the onion proxy (in which case it defaults to -proxy set above, or none)
-    std::string onionArg = GetArg("-onion", "");
+    std::string onionArg = gArgs.GetArg("-onion", "");
     if (onionArg != "") {
         if (onionArg == "0") { // Handle -noonion/-onion=0
             SetLimited(NET_TOR); // set onions as unreachable
@@ -1336,9 +1336,9 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     }
 
     // see Step 2: parameter interactions for more information about these
-    fListen = GetBoolArg("-listen", DEFAULT_LISTEN);
-    fDiscover = GetBoolArg("-discover", true);
-    fRelayTxes = !GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY);
+    fListen = gArgs.GetBoolArg("-listen", DEFAULT_LISTEN);
+    fDiscover = gArgs.GetBoolArg("-discover", true);
+    fRelayTxes = !gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY);
 
     for (const std::string& strAddr : gArgs.GetArgs("-externalip")) {
         CService addrLocal;
@@ -1358,27 +1358,27 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     uint64_t nMaxOutboundLimit = 0; //unlimited unless -maxuploadtarget is set
     uint64_t nMaxOutboundTimeframe = MAX_UPLOAD_TIMEFRAME;
 
-    if (IsArgSet("-maxuploadtarget")) {
-        nMaxOutboundLimit = GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET)*1024*1024;
+    if (gArgs.IsArgSet("-maxuploadtarget")) {
+        nMaxOutboundLimit = gArgs.GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET)*1024*1024;
     }
 
     // ********************************************************* Step 7: load block chain
 
-    fReindex = GetBoolArg("-reindex", false);
-    bool fReindexChainState = GetBoolArg("-reindex-chainstate", false);
+    fReindex = gArgs.GetBoolArg("-reindex", false);
+    bool fReindexChainState = gArgs.GetBoolArg("-reindex-chainstate", false);
 
     // cache size calculations
-    int64_t nTotalCache = (GetArg("-dbcache", nDefaultDbCache) << 20);
+    int64_t nTotalCache = (gArgs.GetArg("-dbcache", nDefaultDbCache) << 20);
     nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache
     nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greater than nMaxDbcache
     int64_t nBlockTreeDBCache = nTotalCache / 8;
-    nBlockTreeDBCache = std::min(nBlockTreeDBCache, (GetBoolArg("-txindex", DEFAULT_TXINDEX) ? nMaxBlockDBAndTxIndexCache : nMaxBlockDBCache) << 20);
+    nBlockTreeDBCache = std::min(nBlockTreeDBCache, (gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX) ? nMaxBlockDBAndTxIndexCache : nMaxBlockDBCache) << 20);
     nTotalCache -= nBlockTreeDBCache;
     int64_t nCoinDBCache = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache
     nCoinDBCache = std::min(nCoinDBCache, nMaxCoinsDBCache << 20); // cap total coins db cache
     nTotalCache -= nCoinDBCache;
     nCoinCacheUsage = nTotalCache; // the rest goes to in-memory cache
-    int64_t nMempoolSizeMax = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
+    int64_t nMempoolSizeMax = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
     LogPrintf("Cache configuration:\n");
     LogPrintf("* Using %.1fMiB for block index database\n", nBlockTreeDBCache * (1.0 / 1024 / 1024));
     LogPrintf("* Using %.1fMiB for chain state database\n", nCoinDBCache * (1.0 / 1024 / 1024));
@@ -1427,7 +1427,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
                     return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?"));
 
                 // Check for changed -txindex state
-                if (fTxIndex != GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
+                if (fTxIndex != gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
                     strLoadError = _("You need to rebuild the database using -reindex-chainstate to change -txindex");
                     break;
                 }
@@ -1493,7 +1493,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
 
                 if (!is_coinsview_empty) {
                     uiInterface.InitMessage(_("Verifying blocks..."));
-                    if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) {
+                    if (fHavePruned && gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) {
                         LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks",
                             MIN_BLOCKS_TO_KEEP);
                     }
@@ -1510,8 +1510,8 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
                         }
                     }
 
-                    if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview, GetArg("-checklevel", DEFAULT_CHECKLEVEL),
-                                  GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) {
+                    if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview, gArgs.GetArg("-checklevel", DEFAULT_CHECKLEVEL),
+                                  gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) {
                         strLoadError = _("Corrupted block database detected");
                         break;
                     }
@@ -1610,7 +1610,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
         fHaveGenesis = true;
     }
 
-    if (IsArgSet("-blocknotify"))
+    if (gArgs.IsArgSet("-blocknotify"))
         uiInterface.NotifyBlockTip.connect(BlockNotifyCallback);
 
     std::vector<fs::path> vImportFiles;
@@ -1634,13 +1634,13 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     //// debug print
     LogPrintf("mapBlockIndex.size() = %u\n",   mapBlockIndex.size());
     LogPrintf("nBestHeight = %d\n",                   chainActive.Height());
-    if (GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION))
+    if (gArgs.GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION))
         StartTorControl(threadGroup, scheduler);
 
     Discover(threadGroup);
 
     // Map ports with UPnP
-    MapPort(GetBoolArg("-upnp", DEFAULT_UPNP));
+    MapPort(gArgs.GetBoolArg("-upnp", DEFAULT_UPNP));
 
     CConnman::Options connOptions;
     connOptions.nLocalServices = nLocalServices;
@@ -1651,8 +1651,8 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
     connOptions.nMaxFeeler = 1;
     connOptions.nBestHeight = chainActive.Height();
     connOptions.uiInterface = &uiInterface;
-    connOptions.nSendBufferMaxSize = 1000*GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER);
-    connOptions.nReceiveFloodSize = 1000*GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER);
+    connOptions.nSendBufferMaxSize = 1000*gArgs.GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER);
+    connOptions.nReceiveFloodSize = 1000*gArgs.GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER);
 
     connOptions.nMaxOutboundTimeframe = nMaxOutboundTimeframe;
     connOptions.nMaxOutboundLimit = nMaxOutboundLimit;
diff --git a/src/miner.cpp b/src/miner.cpp
index 79016bfd3e..403d3d4e4a 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -88,20 +88,20 @@ static BlockAssembler::Options DefaultOptions(const CChainParams& params)
     options.nBlockMaxWeight = DEFAULT_BLOCK_MAX_WEIGHT;
     options.nBlockMaxSize = DEFAULT_BLOCK_MAX_SIZE;
     bool fWeightSet = false;
-    if (IsArgSet("-blockmaxweight")) {
-        options.nBlockMaxWeight = GetArg("-blockmaxweight", DEFAULT_BLOCK_MAX_WEIGHT);
+    if (gArgs.IsArgSet("-blockmaxweight")) {
+        options.nBlockMaxWeight = gArgs.GetArg("-blockmaxweight", DEFAULT_BLOCK_MAX_WEIGHT);
         options.nBlockMaxSize = MAX_BLOCK_SERIALIZED_SIZE;
         fWeightSet = true;
     }
-    if (IsArgSet("-blockmaxsize")) {
-        options.nBlockMaxSize = GetArg("-blockmaxsize", DEFAULT_BLOCK_MAX_SIZE);
+    if (gArgs.IsArgSet("-blockmaxsize")) {
+        options.nBlockMaxSize = gArgs.GetArg("-blockmaxsize", DEFAULT_BLOCK_MAX_SIZE);
         if (!fWeightSet) {
             options.nBlockMaxWeight = options.nBlockMaxSize * WITNESS_SCALE_FACTOR;
         }
     }
-    if (IsArgSet("-blockmintxfee")) {
+    if (gArgs.IsArgSet("-blockmintxfee")) {
         CAmount n = 0;
-        ParseMoney(GetArg("-blockmintxfee", ""), n);
+        ParseMoney(gArgs.GetArg("-blockmintxfee", ""), n);
         options.blockMinFeeRate = CFeeRate(n);
     } else {
         options.blockMinFeeRate = CFeeRate(DEFAULT_BLOCK_MIN_TX_FEE);
@@ -151,7 +151,7 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc
     // -regtest only: allow overriding block.nVersion with
     // -blockversion=N to test forking scenarios
     if (chainparams.MineBlocksOnDemand())
-        pblock->nVersion = GetArg("-blockversion", pblock->nVersion);
+        pblock->nVersion = gArgs.GetArg("-blockversion", pblock->nVersion);
 
     pblock->nTime = GetAdjustedTime();
     const int64_t nMedianTimePast = pindexPrev->GetMedianTimePast();
@@ -272,7 +272,7 @@ void BlockAssembler::AddToBlock(CTxMemPool::txiter iter)
     nFees += iter->GetFee();
     inBlock.insert(iter);
 
-    bool fPrintPriority = GetBoolArg("-printpriority", DEFAULT_PRINTPRIORITY);
+    bool fPrintPriority = gArgs.GetBoolArg("-printpriority", DEFAULT_PRINTPRIORITY);
     if (fPrintPriority) {
         LogPrintf("fee %s txid %s\n",
                   CFeeRate(iter->GetModifiedFee(), iter->GetTxSize()).ToString(),
diff --git a/src/net.cpp b/src/net.cpp
index 0ed2196063..599a6128fa 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -101,7 +101,7 @@ void CConnman::AddOneShot(const std::string& strDest)
 
 unsigned short GetListenPort()
 {
-    return (unsigned short)(GetArg("-port", Params().GetDefaultPort()));
+    return (unsigned short)(gArgs.GetArg("-port", Params().GetDefaultPort()));
 }
 
 // find 'best' local address for a particular peer
@@ -514,7 +514,7 @@ void CConnman::Ban(const CSubNet& subNet, const BanReason &banReason, int64_t ba
     banEntry.banReason = banReason;
     if (bantimeoffset <= 0)
     {
-        bantimeoffset = GetArg("-bantime", DEFAULT_MISBEHAVING_BANTIME);
+        bantimeoffset = gArgs.GetArg("-bantime", DEFAULT_MISBEHAVING_BANTIME);
         sinceUnixEpoch = false;
     }
     banEntry.nBanUntil = (sinceUnixEpoch ? 0 : GetTime() )+bantimeoffset;
@@ -1575,7 +1575,7 @@ void CConnman::ThreadDNSAddressSeed()
     //  creating fewer identifying DNS requests, reduces trust by giving seeds
     //  less influence on the network topology, and reduces traffic to the seeds.
     if ((addrman.size() > 0) &&
-        (!GetBoolArg("-forcednsseed", DEFAULT_FORCEDNSSEED))) {
+        (!gArgs.GetBoolArg("-forcednsseed", DEFAULT_FORCEDNSSEED))) {
         if (!interruptNet.sleep_for(std::chrono::seconds(11)))
             return;
 
@@ -2336,7 +2336,7 @@ bool CConnman::Start(CScheduler& scheduler, const Options& connOptions)
     // Send and receive from sockets, accept connections
     threadSocketHandler = std::thread(&TraceThread<std::function<void()> >, "net", std::function<void()>(std::bind(&CConnman::ThreadSocketHandler, this)));
 
-    if (!GetBoolArg("-dnsseed", true))
+    if (!gArgs.GetBoolArg("-dnsseed", true))
         LogPrintf("DNS seeding disabled\n");
     else
         threadDNSAddressSeed = std::thread(&TraceThread<std::function<void()> >, "dnsseed", std::function<void()>(std::bind(&CConnman::ThreadDNSAddressSeed, this)));
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 766618130c..e09b56a631 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -581,7 +581,7 @@ void UnregisterNodeSignals(CNodeSignals& nodeSignals)
 
 void AddToCompactExtraTransactions(const CTransactionRef& tx)
 {
-    size_t max_extra_txn = GetArg("-blockreconstructionextratxn", DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN);
+    size_t max_extra_txn = gArgs.GetArg("-blockreconstructionextratxn", DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN);
     if (max_extra_txn <= 0)
         return;
     if (!vExtraTxnForCompact.size())
@@ -704,7 +704,7 @@ void Misbehaving(NodeId pnode, int howmuch)
         return;
 
     state->nMisbehavior += howmuch;
-    int banscore = GetArg("-banscore", DEFAULT_BANSCORE_THRESHOLD);
+    int banscore = gArgs.GetArg("-banscore", DEFAULT_BANSCORE_THRESHOLD);
     if (state->nMisbehavior >= banscore && state->nMisbehavior - howmuch < banscore)
     {
         LogPrintf("%s: %s peer=%d (%d -> %d) BAN THRESHOLD EXCEEDED\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior);
@@ -1175,7 +1175,7 @@ inline void static SendBlockTransactions(const CBlock& block, const BlockTransac
 bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, int64_t nTimeReceived, const CChainParams& chainparams, CConnman& connman, const std::atomic<bool>& interruptMsgProc)
 {
     LogPrint(BCLog::NET, "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->GetId());
-    if (IsArgSet("-dropmessagestest") && GetRand(GetArg("-dropmessagestest", 0)) == 0)
+    if (gArgs.IsArgSet("-dropmessagestest") && GetRand(gArgs.GetArg("-dropmessagestest", 0)) == 0)
     {
         LogPrintf("dropmessagestest DROPPING RECV MESSAGE\n");
         return true;
@@ -1541,7 +1541,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         bool fBlocksOnly = !fRelayTxes;
 
         // Allow whitelisted peers to send data other than blocks in blocks only mode if whitelistrelay is true
-        if (pfrom->fWhitelisted && GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY))
+        if (pfrom->fWhitelisted && gArgs.GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY))
             fBlocksOnly = false;
 
         LOCK(cs_main);
@@ -1782,7 +1782,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
     {
         // Stop processing the transaction early if
         // We are in blocks only mode and peer is either not whitelisted or whitelistrelay is off
-        if (!fRelayTxes && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY)))
+        if (!fRelayTxes && (!pfrom->fWhitelisted || !gArgs.GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY)))
         {
             LogPrint(BCLog::NET, "transaction sent in violation of protocol peer=%d\n", pfrom->GetId());
             return true;
@@ -1901,7 +1901,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                 AddOrphanTx(ptx, pfrom->GetId());
 
                 // DoS prevention: do not allow mapOrphanTransactions to grow unbounded
-                unsigned int nMaxOrphanTx = (unsigned int)std::max((int64_t)0, GetArg("-maxorphantx", DEFAULT_MAX_ORPHAN_TRANSACTIONS));
+                unsigned int nMaxOrphanTx = (unsigned int)std::max((int64_t)0, gArgs.GetArg("-maxorphantx", DEFAULT_MAX_ORPHAN_TRANSACTIONS));
                 unsigned int nEvicted = LimitOrphanTxSize(nMaxOrphanTx);
                 if (nEvicted > 0) {
                     LogPrint(BCLog::MEMPOOL, "mapOrphan overflow, removed %u tx\n", nEvicted);
@@ -1926,7 +1926,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                 AddToCompactExtraTransactions(ptx);
             }
 
-            if (pfrom->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
+            if (pfrom->fWhitelisted && gArgs.GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
                 // Always relay transactions received from whitelisted peers, even
                 // if they were already in the mempool or rejected from it due
                 // to policy, allowing the node to function as a gateway for
@@ -3297,9 +3297,9 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
         // Message: feefilter
         //
         // We don't want white listed peers to filter txs to us if we have -whitelistforcerelay
-        if (pto->nVersion >= FEEFILTER_VERSION && GetBoolArg("-feefilter", DEFAULT_FEEFILTER) &&
-            !(pto->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY))) {
-            CAmount currentFilter = mempool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFeePerK();
+        if (pto->nVersion >= FEEFILTER_VERSION && gArgs.GetBoolArg("-feefilter", DEFAULT_FEEFILTER) &&
+            !(pto->fWhitelisted && gArgs.GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY))) {
+            CAmount currentFilter = mempool.GetMinFee(gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFeePerK();
             int64_t timeNow = GetTimeMicros();
             if (timeNow > pto->nextSendTimeFeeFilter) {
                 static CFeeRate default_feerate(DEFAULT_MIN_RELAY_TX_FEE);
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index b6cfdf8887..2b6bd354a0 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -106,7 +106,7 @@ static QString GetLangTerritory()
     if(!lang_territory_qsettings.isEmpty())
         lang_territory = lang_territory_qsettings;
     // 3) -lang command line argument
-    lang_territory = QString::fromStdString(GetArg("-lang", lang_territory.toStdString()));
+    lang_territory = QString::fromStdString(gArgs.GetArg("-lang", lang_territory.toStdString()));
     return lang_territory;
 }
 
@@ -345,7 +345,7 @@ BitcoinApplication::BitcoinApplication(int &argc, char **argv):
     // This must be done inside the BitcoinApplication constructor, or after it, because
     // PlatformStyle::instantiate requires a QApplication
     std::string platformName;
-    platformName = GetArg("-uiplatform", BitcoinGUI::DEFAULT_UIPLATFORM);
+    platformName = gArgs.GetArg("-uiplatform", BitcoinGUI::DEFAULT_UIPLATFORM);
     platformStyle = PlatformStyle::instantiate(QString::fromStdString(platformName));
     if (!platformStyle) // Fall back to "other" if specified name not found
         platformStyle = PlatformStyle::instantiate("other");
@@ -498,7 +498,7 @@ void BitcoinApplication::initializeResult(bool success)
 #endif
 
         // If -min option passed, start window minimized.
-        if(GetBoolArg("-min", false))
+        if(gArgs.GetBoolArg("-min", false))
         {
             window->showMinimized();
         }
@@ -550,7 +550,7 @@ int main(int argc, char *argv[])
 
     /// 1. Parse command-line options. These take precedence over anything else.
     // Command-line options take precedence:
-    ParseParameters(argc, argv);
+    gArgs.ParseParameters(argc, argv);
 
     // Do not refer to data directory yet, this can be overridden by Intro::pickDataDirectory
 
@@ -606,9 +606,9 @@ int main(int argc, char *argv[])
 
     // Show help message immediately after parsing command-line options (for "-lang") and setting locale,
     // but before showing splash screen.
-    if (IsArgSet("-?") || IsArgSet("-h") || IsArgSet("-help") || IsArgSet("-version"))
+    if (gArgs.IsArgSet("-?") || gArgs.IsArgSet("-h") || gArgs.IsArgSet("-help") || gArgs.IsArgSet("-version"))
     {
-        HelpMessageDialog help(nullptr, IsArgSet("-version"));
+        HelpMessageDialog help(nullptr, gArgs.IsArgSet("-version"));
         help.showOrPrint();
         return EXIT_SUCCESS;
     }
@@ -623,11 +623,11 @@ int main(int argc, char *argv[])
     if (!fs::is_directory(GetDataDir(false)))
     {
         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME),
-                              QObject::tr("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(GetArg("-datadir", ""))));
+                              QObject::tr("Error: Specified data directory \"%1\" does not exist.").arg(QString::fromStdString(gArgs.GetArg("-datadir", ""))));
         return EXIT_FAILURE;
     }
     try {
-        ReadConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME));
+        gArgs.ReadConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME));
     } catch (const std::exception& e) {
         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME),
                               QObject::tr("Error: Cannot parse configuration file: %1. Only use key=value syntax.").arg(e.what()));
@@ -691,12 +691,12 @@ int main(int argc, char *argv[])
     // Allow parameter interaction before we create the options model
     app.parameterSetup();
     // Load GUI settings from QSettings
-    app.createOptionsModel(IsArgSet("-resetguisettings"));
+    app.createOptionsModel(gArgs.IsArgSet("-resetguisettings"));
 
     // Subscribe to global signals from core
     uiInterface.InitMessage.connect(InitMessage);
 
-    if (GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) && !GetBoolArg("-min", false))
+    if (gArgs.GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) && !gArgs.GetBoolArg("-min", false))
         app.createSplashScreen(networkStyle.data());
 
     int rv = EXIT_SUCCESS;
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 28ffda9981..f3c5daebec 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -651,7 +651,7 @@ bool SetStartOnSystemStartup(bool fAutoStart)
             // Start client minimized
             QString strArgs = "-min";
             // Set -testnet /-regtest options
-            strArgs += QString::fromStdString(strprintf(" -testnet=%d -regtest=%d", GetBoolArg("-testnet", false), GetBoolArg("-regtest", false)));
+            strArgs += QString::fromStdString(strprintf(" -testnet=%d -regtest=%d", gArgs.GetBoolArg("-testnet", false), gArgs.GetBoolArg("-regtest", false)));
 
 #ifdef UNICODE
             boost::scoped_array<TCHAR> args(new TCHAR[strArgs.length() + 1]);
@@ -760,7 +760,7 @@ bool SetStartOnSystemStartup(bool fAutoStart)
             optionFile << "Name=Bitcoin\n";
         else
             optionFile << strprintf("Name=Bitcoin (%s)\n", chain);
-        optionFile << "Exec=" << pszExePath << strprintf(" -min -testnet=%d -regtest=%d\n", GetBoolArg("-testnet", false), GetBoolArg("-regtest", false));
+        optionFile << "Exec=" << pszExePath << strprintf(" -min -testnet=%d -regtest=%d\n", gArgs.GetBoolArg("-testnet", false), gArgs.GetBoolArg("-regtest", false));
         optionFile << "Terminal=false\n";
         optionFile << "Hidden=false\n";
         optionFile.close();
diff --git a/src/qt/intro.cpp b/src/qt/intro.cpp
index 231a715753..72809942f1 100644
--- a/src/qt/intro.cpp
+++ b/src/qt/intro.cpp
@@ -131,7 +131,7 @@ Intro::Intro(QWidget *parent) :
     );
     ui->lblExplanation2->setText(ui->lblExplanation2->text().arg(tr(PACKAGE_NAME)));
 
-    uint64_t pruneTarget = std::max<int64_t>(0, GetArg("-prune", 0));
+    uint64_t pruneTarget = std::max<int64_t>(0, gArgs.GetArg("-prune", 0));
     requiredSpace = BLOCK_CHAIN_SIZE;
     QString storageRequiresMsg = tr("At least %1 GB of data will be stored in this directory, and it will grow over time.");
     if (pruneTarget) {
@@ -191,14 +191,14 @@ bool Intro::pickDataDirectory()
     QSettings settings;
     /* If data directory provided on command line, no need to look at settings
        or show a picking dialog */
-    if(!GetArg("-datadir", "").empty())
+    if(!gArgs.GetArg("-datadir", "").empty())
         return true;
     /* 1) Default data directory for operating system */
     QString dataDir = getDefaultDataDirectory();
     /* 2) Allow QSettings to override default dir */
     dataDir = settings.value("strDataDir", dataDir).toString();
 
-    if(!fs::exists(GUIUtil::qstringToBoostPath(dataDir)) || GetBoolArg("-choosedatadir", DEFAULT_CHOOSE_DATADIR) || settings.value("fReset", false).toBool() || GetBoolArg("-resetguisettings", false))
+    if(!fs::exists(GUIUtil::qstringToBoostPath(dataDir)) || gArgs.GetBoolArg("-choosedatadir", DEFAULT_CHOOSE_DATADIR) || settings.value("fReset", false).toBool() || gArgs.GetBoolArg("-resetguisettings", false))
     {
         /* If current default data directory does not exist, let the user choose one */
         Intro intro;
@@ -231,7 +231,7 @@ bool Intro::pickDataDirectory()
      * (to be consistent with bitcoind behavior)
      */
     if(dataDir != getDefaultDataDirectory())
-        SoftSetArg("-datadir", GUIUtil::qstringToBoostPath(dataDir).string()); // use OS locale for path setting
+        gArgs.SoftSetArg("-datadir", GUIUtil::qstringToBoostPath(dataDir).string()); // use OS locale for path setting
     return true;
 }
 
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index d6e740ee9c..77efef3e3c 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -36,7 +36,7 @@ OptionsModel::OptionsModel(QObject *parent, bool resetSettings) :
 
 void OptionsModel::addOverriddenOption(const std::string &option)
 {
-    strOverriddenByCommandLine += QString::fromStdString(option) + "=" + QString::fromStdString(GetArg(option, "")) + " ";
+    strOverriddenByCommandLine += QString::fromStdString(option) + "=" + QString::fromStdString(gArgs.GetArg(option, "")) + " ";
 }
 
 // Writes all missing QSettings with their default values
@@ -86,18 +86,18 @@ void OptionsModel::Init(bool resetSettings)
     //
     // If setting doesn't exist create it with defaults.
     //
-    // If SoftSetArg() or SoftSetBoolArg() return false we were overridden
+    // If gArgs.SoftSetArg() or gArgs.SoftSetBoolArg() return false we were overridden
     // by command-line and show this in the UI.
 
     // Main
     if (!settings.contains("nDatabaseCache"))
         settings.setValue("nDatabaseCache", (qint64)nDefaultDbCache);
-    if (!SoftSetArg("-dbcache", settings.value("nDatabaseCache").toString().toStdString()))
+    if (!gArgs.SoftSetArg("-dbcache", settings.value("nDatabaseCache").toString().toStdString()))
         addOverriddenOption("-dbcache");
 
     if (!settings.contains("nThreadsScriptVerif"))
         settings.setValue("nThreadsScriptVerif", DEFAULT_SCRIPTCHECK_THREADS);
-    if (!SoftSetArg("-par", settings.value("nThreadsScriptVerif").toString().toStdString()))
+    if (!gArgs.SoftSetArg("-par", settings.value("nThreadsScriptVerif").toString().toStdString()))
         addOverriddenOption("-par");
 
     if (!settings.contains("strDataDir"))
@@ -107,19 +107,19 @@ void OptionsModel::Init(bool resetSettings)
 #ifdef ENABLE_WALLET
     if (!settings.contains("bSpendZeroConfChange"))
         settings.setValue("bSpendZeroConfChange", true);
-    if (!SoftSetBoolArg("-spendzeroconfchange", settings.value("bSpendZeroConfChange").toBool()))
+    if (!gArgs.SoftSetBoolArg("-spendzeroconfchange", settings.value("bSpendZeroConfChange").toBool()))
         addOverriddenOption("-spendzeroconfchange");
 #endif
 
     // Network
     if (!settings.contains("fUseUPnP"))
         settings.setValue("fUseUPnP", DEFAULT_UPNP);
-    if (!SoftSetBoolArg("-upnp", settings.value("fUseUPnP").toBool()))
+    if (!gArgs.SoftSetBoolArg("-upnp", settings.value("fUseUPnP").toBool()))
         addOverriddenOption("-upnp");
 
     if (!settings.contains("fListen"))
         settings.setValue("fListen", DEFAULT_LISTEN);
-    if (!SoftSetBoolArg("-listen", settings.value("fListen").toBool()))
+    if (!gArgs.SoftSetBoolArg("-listen", settings.value("fListen").toBool()))
         addOverriddenOption("-listen");
 
     if (!settings.contains("fUseProxy"))
@@ -127,9 +127,9 @@ void OptionsModel::Init(bool resetSettings)
     if (!settings.contains("addrProxy"))
         settings.setValue("addrProxy", "127.0.0.1:9050");
     // Only try to set -proxy, if user has enabled fUseProxy
-    if (settings.value("fUseProxy").toBool() && !SoftSetArg("-proxy", settings.value("addrProxy").toString().toStdString()))
+    if (settings.value("fUseProxy").toBool() && !gArgs.SoftSetArg("-proxy", settings.value("addrProxy").toString().toStdString()))
         addOverriddenOption("-proxy");
-    else if(!settings.value("fUseProxy").toBool() && !GetArg("-proxy", "").empty())
+    else if(!settings.value("fUseProxy").toBool() && !gArgs.GetArg("-proxy", "").empty())
         addOverriddenOption("-proxy");
 
     if (!settings.contains("fUseSeparateProxyTor"))
@@ -137,15 +137,15 @@ void OptionsModel::Init(bool resetSettings)
     if (!settings.contains("addrSeparateProxyTor"))
         settings.setValue("addrSeparateProxyTor", "127.0.0.1:9050");
     // Only try to set -onion, if user has enabled fUseSeparateProxyTor
-    if (settings.value("fUseSeparateProxyTor").toBool() && !SoftSetArg("-onion", settings.value("addrSeparateProxyTor").toString().toStdString()))
+    if (settings.value("fUseSeparateProxyTor").toBool() && !gArgs.SoftSetArg("-onion", settings.value("addrSeparateProxyTor").toString().toStdString()))
         addOverriddenOption("-onion");
-    else if(!settings.value("fUseSeparateProxyTor").toBool() && !GetArg("-onion", "").empty())
+    else if(!settings.value("fUseSeparateProxyTor").toBool() && !gArgs.GetArg("-onion", "").empty())
         addOverriddenOption("-onion");
 
     // Display
     if (!settings.contains("language"))
         settings.setValue("language", "");
-    if (!SoftSetArg("-lang", settings.value("language").toString().toStdString()))
+    if (!gArgs.SoftSetArg("-lang", settings.value("language").toString().toStdString()))
         addOverriddenOption("-lang");
 
     language = settings.value("language").toString();
diff --git a/src/qt/paymentrequestplus.cpp b/src/qt/paymentrequestplus.cpp
index 897762b1a7..0a5cb98668 100644
--- a/src/qt/paymentrequestplus.cpp
+++ b/src/qt/paymentrequestplus.cpp
@@ -145,7 +145,7 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
             int error = X509_STORE_CTX_get_error(store_ctx);
             // For testing payment requests, we allow self signed root certs!
             // This option is just shown in the UI options, if -help-debug is enabled.
-            if (!(error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT && GetBoolArg("-allowselfsignedrootcertificates", DEFAULT_SELFSIGNED_ROOTCERTS))) {
+            if (!(error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT && gArgs.GetBoolArg("-allowselfsignedrootcertificates", DEFAULT_SELFSIGNED_ROOTCERTS))) {
                 throw SSLVerifyError(X509_verify_cert_error_string(error));
             } else {
                qDebug() << "PaymentRequestPlus::getMerchant: Allowing self signed root certificate, because -allowselfsignedrootcertificates is true.";
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index c5e2b78c54..67fe320185 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -122,7 +122,7 @@ void PaymentServer::LoadRootCAs(X509_STORE* _store)
 
     // Note: use "-system-" default here so that users can pass -rootcertificates=""
     // and get 'I don't like X.509 certificates, don't trust anybody' behavior:
-    QString certFile = QString::fromStdString(GetArg("-rootcertificates", "-system-"));
+    QString certFile = QString::fromStdString(gArgs.GetArg("-rootcertificates", "-system-"));
 
     // Empty store
     if (certFile.isEmpty()) {
diff --git a/src/qt/test/rpcnestedtests.cpp b/src/qt/test/rpcnestedtests.cpp
index fbad9e544a..e2abfb3742 100644
--- a/src/qt/test/rpcnestedtests.cpp
+++ b/src/qt/test/rpcnestedtests.cpp
@@ -41,7 +41,7 @@ void RPCNestedTests::rpcNestedTests()
     std::string path = QDir::tempPath().toStdString() + "/" + strprintf("test_bitcoin_qt_%lu_%i", (unsigned long)GetTime(), (int)(GetRand(100000)));
     QDir dir(QString::fromStdString(path));
     dir.mkpath(".");
-    ForceSetArg("-datadir", path);
+    gArgs.ForceSetArg("-datadir", path);
     //mempool.setSanityCheck(1.0);
 
     TestingSetup test;
diff --git a/src/qt/utilitydialog.cpp b/src/qt/utilitydialog.cpp
index c9b344fbd8..5d8c23d13c 100644
--- a/src/qt/utilitydialog.cpp
+++ b/src/qt/utilitydialog.cpp
@@ -78,7 +78,7 @@ HelpMessageDialog::HelpMessageDialog(QWidget *parent, bool about) :
         cursor.insertBlock();
 
         std::string strUsage = HelpMessage(HMM_BITCOIN_QT);
-        const bool showDebug = GetBoolArg("-help-debug", false);
+        const bool showDebug = gArgs.GetBoolArg("-help-debug", false);
         strUsage += HelpMessageGroup(tr("UI Options:").toStdString());
         if (showDebug) {
             strUsage += HelpMessageOpt("-allowselfsignedrootcertificates", strprintf("Allow self signed root certificates (default: %u)", DEFAULT_SELFSIGNED_ROOTCERTS));
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index ba0e1da0c7..3ca726d0f9 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -739,7 +739,7 @@ bool WalletModel::bumpFee(uint256 hash)
 
 bool WalletModel::isWalletEnabled()
 {
-   return !GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET);
+   return !gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET);
 }
 
 bool WalletModel::hdEnabled() const
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 701608e132..24e0405a84 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -1018,8 +1018,8 @@ UniValue gettxout(const JSONRPCRequest& request)
 
 UniValue verifychain(const JSONRPCRequest& request)
 {
-    int nCheckLevel = GetArg("-checklevel", DEFAULT_CHECKLEVEL);
-    int nCheckDepth = GetArg("-checkblocks", DEFAULT_CHECKBLOCKS);
+    int nCheckLevel = gArgs.GetArg("-checklevel", DEFAULT_CHECKLEVEL);
+    int nCheckDepth = gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS);
     if (request.fHelp || request.params.size() > 2)
         throw std::runtime_error(
             "verifychain ( checklevel nblocks )\n"
@@ -1324,7 +1324,7 @@ UniValue mempoolInfoToJSON()
     ret.push_back(Pair("size", (int64_t) mempool.size()));
     ret.push_back(Pair("bytes", (int64_t) mempool.GetTotalTxSize()));
     ret.push_back(Pair("usage", (int64_t) mempool.DynamicMemoryUsage()));
-    size_t maxmempool = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
+    size_t maxmempool = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
     ret.push_back(Pair("maxmempool", (int64_t) maxmempool));
     ret.push_back(Pair("mempoolminfee", ValueFromAmount(mempool.GetMinFee(maxmempool).GetFeePerK())));
 
diff --git a/src/rpc/protocol.cpp b/src/rpc/protocol.cpp
index 823a5775f6..db0626b5e1 100644
--- a/src/rpc/protocol.cpp
+++ b/src/rpc/protocol.cpp
@@ -68,7 +68,7 @@ static const std::string COOKIEAUTH_FILE = ".cookie";
 
 fs::path GetAuthCookieFile()
 {
-    fs::path path(GetArg("-rpccookiefile", COOKIEAUTH_FILE));
+    fs::path path(gArgs.GetArg("-rpccookiefile", COOKIEAUTH_FILE));
     if (!path.is_complete()) path = GetDataDir() / path;
     return path;
 }
diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
index 1799c8e98e..9ad8d228fa 100644
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -552,7 +552,7 @@ void RPCRunLater(const std::string& name, std::function<void(void)> func, int64_
 int RPCSerializationFlags()
 {
     int flag = 0;
-    if (GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) == 0)
+    if (gArgs.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) == 0)
         flag |= SERIALIZE_TRANSACTION_NO_WITNESS;
     return flag;
 }
diff --git a/src/script/sigcache.cpp b/src/script/sigcache.cpp
index ceb573b2ec..4cc7afa2f5 100644
--- a/src/script/sigcache.cpp
+++ b/src/script/sigcache.cpp
@@ -74,7 +74,7 @@ void InitSignatureCache()
 {
     // nMaxCacheSize is unsigned. If -maxsigcachesize is set to zero,
     // setup_bytes creates the minimum possible cache (2 elements).
-    size_t nMaxCacheSize = std::min(std::max((int64_t)0, GetArg("-maxsigcachesize", DEFAULT_MAX_SIG_CACHE_SIZE) / 2), MAX_MAX_SIG_CACHE_SIZE) * ((size_t) 1 << 20);
+    size_t nMaxCacheSize = std::min(std::max((int64_t)0, gArgs.GetArg("-maxsigcachesize", DEFAULT_MAX_SIG_CACHE_SIZE) / 2), MAX_MAX_SIG_CACHE_SIZE) * ((size_t) 1 << 20);
     size_t nElems = signatureCache.setup_bytes(nMaxCacheSize);
     LogPrintf("Using %zu MiB out of %zu/2 requested for signature cache, able to store %zu elements\n",
             (nElems*sizeof(uint256)) >>20, (nMaxCacheSize*2)>>20, nElems);
diff --git a/src/test/DoS_tests.cpp b/src/test/DoS_tests.cpp
index 4a284517a1..ffbeeb7d91 100644
--- a/src/test/DoS_tests.cpp
+++ b/src/test/DoS_tests.cpp
@@ -78,7 +78,7 @@ BOOST_AUTO_TEST_CASE(DoS_banscore)
     std::atomic<bool> interruptDummy(false);
 
     connman->ClearBanned();
-    ForceSetArg("-banscore", "111"); // because 11 is my favorite number
+    gArgs.ForceSetArg("-banscore", "111"); // because 11 is my favorite number
     CAddress addr1(ip(0xa0b0c001), NODE_NONE);
     CNode dummyNode1(id++, NODE_NETWORK, 0, INVALID_SOCKET, addr1, 3, 1, CAddress(), "", true);
     dummyNode1.SetSendVersion(PROTOCOL_VERSION);
@@ -94,7 +94,7 @@ BOOST_AUTO_TEST_CASE(DoS_banscore)
     Misbehaving(dummyNode1.GetId(), 1);
     SendMessages(&dummyNode1, *connman, interruptDummy);
     BOOST_CHECK(connman->IsBanned(addr1));
-    ForceSetArg("-banscore", std::to_string(DEFAULT_BANSCORE_THRESHOLD));
+    gArgs.ForceSetArg("-banscore", std::to_string(DEFAULT_BANSCORE_THRESHOLD));
 }
 
 BOOST_AUTO_TEST_CASE(DoS_bantime)
diff --git a/src/test/getarg_tests.cpp b/src/test/getarg_tests.cpp
index c79675f5a6..18a7e59933 100644
--- a/src/test/getarg_tests.cpp
+++ b/src/test/getarg_tests.cpp
@@ -27,135 +27,135 @@ static void ResetArgs(const std::string& strArg)
     for (std::string& s : vecArg)
         vecChar.push_back(s.c_str());
 
-    ParseParameters(vecChar.size(), &vecChar[0]);
+    gArgs.ParseParameters(vecChar.size(), &vecChar[0]);
 }
 
 BOOST_AUTO_TEST_CASE(boolarg)
 {
     ResetArgs("-foo");
-    BOOST_CHECK(GetBoolArg("-foo", false));
-    BOOST_CHECK(GetBoolArg("-foo", true));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", true));
 
-    BOOST_CHECK(!GetBoolArg("-fo", false));
-    BOOST_CHECK(GetBoolArg("-fo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-fo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-fo", true));
 
-    BOOST_CHECK(!GetBoolArg("-fooo", false));
-    BOOST_CHECK(GetBoolArg("-fooo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-fooo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-fooo", true));
 
     ResetArgs("-foo=0");
-    BOOST_CHECK(!GetBoolArg("-foo", false));
-    BOOST_CHECK(!GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
 
     ResetArgs("-foo=1");
-    BOOST_CHECK(GetBoolArg("-foo", false));
-    BOOST_CHECK(GetBoolArg("-foo", true));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", true));
 
     // New 0.6 feature: auto-map -nosomething to !-something:
     ResetArgs("-nofoo");
-    BOOST_CHECK(!GetBoolArg("-foo", false));
-    BOOST_CHECK(!GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
 
     ResetArgs("-nofoo=1");
-    BOOST_CHECK(!GetBoolArg("-foo", false));
-    BOOST_CHECK(!GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
 
     ResetArgs("-foo -nofoo");  // -nofoo should win
-    BOOST_CHECK(!GetBoolArg("-foo", false));
-    BOOST_CHECK(!GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
 
     ResetArgs("-foo=1 -nofoo=1");  // -nofoo should win
-    BOOST_CHECK(!GetBoolArg("-foo", false));
-    BOOST_CHECK(!GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
 
     ResetArgs("-foo=0 -nofoo=0");  // -nofoo=0 should win
-    BOOST_CHECK(GetBoolArg("-foo", false));
-    BOOST_CHECK(GetBoolArg("-foo", true));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", true));
 
     // New 0.6 feature: treat -- same as -:
     ResetArgs("--foo=1");
-    BOOST_CHECK(GetBoolArg("-foo", false));
-    BOOST_CHECK(GetBoolArg("-foo", true));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", true));
 
     ResetArgs("--nofoo=1");
-    BOOST_CHECK(!GetBoolArg("-foo", false));
-    BOOST_CHECK(!GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
 
 }
 
 BOOST_AUTO_TEST_CASE(stringarg)
 {
     ResetArgs("");
-    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "");
-    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "eleven");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", ""), "");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", "eleven"), "eleven");
 
     ResetArgs("-foo -bar");
-    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "");
-    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", ""), "");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", "eleven"), "");
 
     ResetArgs("-foo=");
-    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "");
-    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", ""), "");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", "eleven"), "");
 
     ResetArgs("-foo=11");
-    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "11");
-    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "11");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", ""), "11");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", "eleven"), "11");
 
     ResetArgs("-foo=eleven");
-    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "eleven");
-    BOOST_CHECK_EQUAL(GetArg("-foo", "eleven"), "eleven");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", ""), "eleven");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", "eleven"), "eleven");
 
 }
 
 BOOST_AUTO_TEST_CASE(intarg)
 {
     ResetArgs("");
-    BOOST_CHECK_EQUAL(GetArg("-foo", 11), 11);
-    BOOST_CHECK_EQUAL(GetArg("-foo", 0), 0);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", 11), 11);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", 0), 0);
 
     ResetArgs("-foo -bar");
-    BOOST_CHECK_EQUAL(GetArg("-foo", 11), 0);
-    BOOST_CHECK_EQUAL(GetArg("-bar", 11), 0);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", 11), 0);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-bar", 11), 0);
 
     ResetArgs("-foo=11 -bar=12");
-    BOOST_CHECK_EQUAL(GetArg("-foo", 0), 11);
-    BOOST_CHECK_EQUAL(GetArg("-bar", 11), 12);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", 0), 11);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-bar", 11), 12);
 
     ResetArgs("-foo=NaN -bar=NotANumber");
-    BOOST_CHECK_EQUAL(GetArg("-foo", 1), 0);
-    BOOST_CHECK_EQUAL(GetArg("-bar", 11), 0);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", 1), 0);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-bar", 11), 0);
 }
 
 BOOST_AUTO_TEST_CASE(doubledash)
 {
     ResetArgs("--foo");
-    BOOST_CHECK_EQUAL(GetBoolArg("-foo", false), true);
+    BOOST_CHECK_EQUAL(gArgs.GetBoolArg("-foo", false), true);
 
     ResetArgs("--foo=verbose --bar=1");
-    BOOST_CHECK_EQUAL(GetArg("-foo", ""), "verbose");
-    BOOST_CHECK_EQUAL(GetArg("-bar", 0), 1);
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-foo", ""), "verbose");
+    BOOST_CHECK_EQUAL(gArgs.GetArg("-bar", 0), 1);
 }
 
 BOOST_AUTO_TEST_CASE(boolargno)
 {
     ResetArgs("-nofoo");
-    BOOST_CHECK(!GetBoolArg("-foo", true));
-    BOOST_CHECK(!GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
 
     ResetArgs("-nofoo=1");
-    BOOST_CHECK(!GetBoolArg("-foo", true));
-    BOOST_CHECK(!GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
 
     ResetArgs("-nofoo=0");
-    BOOST_CHECK(GetBoolArg("-foo", true));
-    BOOST_CHECK(GetBoolArg("-foo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", true));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", false));
 
     ResetArgs("-foo --nofoo"); // --nofoo should win
-    BOOST_CHECK(!GetBoolArg("-foo", true));
-    BOOST_CHECK(!GetBoolArg("-foo", false));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", true));
+    BOOST_CHECK(!gArgs.GetBoolArg("-foo", false));
 
     ResetArgs("-nofoo -foo"); // foo always wins:
-    BOOST_CHECK(GetBoolArg("-foo", true));
-    BOOST_CHECK(GetBoolArg("-foo", false));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", true));
+    BOOST_CHECK(gArgs.GetBoolArg("-foo", false));
 }
 
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/net_tests.cpp b/src/test/net_tests.cpp
index 095d86834c..31b05d868b 100644
--- a/src/test/net_tests.cpp
+++ b/src/test/net_tests.cpp
@@ -80,7 +80,7 @@ BOOST_AUTO_TEST_CASE(cnode_listen_port)
     BOOST_CHECK(port == Params().GetDefaultPort());
     // test set port
     unsigned short altPort = 12345;
-    SoftSetArg("-port", std::to_string(altPort));
+    gArgs.SoftSetArg("-port", std::to_string(altPort));
     port = GetListenPort();
     BOOST_CHECK(port == altPort);
 }
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index 72d7f1b19f..94ec7c03f5 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -63,7 +63,7 @@ TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(cha
         ClearDatadirCache();
         pathTemp = GetTempPath() / strprintf("test_bitcoin_%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(100000)));
         fs::create_directories(pathTemp);
-        ForceSetArg("-datadir", pathTemp.string());
+        gArgs.ForceSetArg("-datadir", pathTemp.string());
 
         // Note that because we don't bother running a scheduler thread here,
         // callbacks via CValidationInterface are unreliable, but that's OK,
diff --git a/src/timedata.cpp b/src/timedata.cpp
index 099ed7f042..5113bb60db 100644
--- a/src/timedata.cpp
+++ b/src/timedata.cpp
@@ -81,7 +81,7 @@ void AddTimeData(const CNetAddr& ip, int64_t nOffsetSample)
         int64_t nMedian = vTimeOffsets.median();
         std::vector<int64_t> vSorted = vTimeOffsets.sorted();
         // Only let other nodes change our time by so much
-        if (abs64(nMedian) <= std::max<int64_t>(0, GetArg("-maxtimeadjustment", DEFAULT_MAX_TIME_ADJUSTMENT)))
+        if (abs64(nMedian) <= std::max<int64_t>(0, gArgs.GetArg("-maxtimeadjustment", DEFAULT_MAX_TIME_ADJUSTMENT)))
         {
             nTimeOffset = nMedian;
         }
diff --git a/src/torcontrol.cpp b/src/torcontrol.cpp
index 57c22537b2..e8bc3e5e75 100644
--- a/src/torcontrol.cpp
+++ b/src/torcontrol.cpp
@@ -525,7 +525,7 @@ void TorController::auth_cb(TorControlConnection& _conn, const TorControlReply&
 
         // Now that we know Tor is running setup the proxy for onion addresses
         // if -onion isn't set to something else.
-        if (GetArg("-onion", "") == "") {
+        if (gArgs.GetArg("-onion", "") == "") {
             CService resolved(LookupNumeric("127.0.0.1", 9050));
             proxyType addrOnion = proxyType(resolved, true);
             SetProxy(NET_TOR, addrOnion);
@@ -642,7 +642,7 @@ void TorController::protocolinfo_cb(TorControlConnection& _conn, const TorContro
          *   cookie:   hex-encoded ~/.tor/control_auth_cookie
          *   password: "password"
          */
-        std::string torpassword = GetArg("-torpassword", "");
+        std::string torpassword = gArgs.GetArg("-torpassword", "");
         if (!torpassword.empty()) {
             if (methods.count("HASHEDPASSWORD")) {
                 LogPrint(BCLog::TOR, "tor: Using HASHEDPASSWORD authentication\n");
@@ -735,7 +735,7 @@ static boost::thread torControlThread;
 
 static void TorControlThread()
 {
-    TorController ctrl(gBase, GetArg("-torcontrol", DEFAULT_TOR_CONTROL));
+    TorController ctrl(gBase, gArgs.GetArg("-torcontrol", DEFAULT_TOR_CONTROL));
 
     event_base_dispatch(gBase);
 }
diff --git a/src/txdb.cpp b/src/txdb.cpp
index 7f7eb65673..4c1b04cd94 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -85,8 +85,8 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
     CDBBatch batch(db);
     size_t count = 0;
     size_t changed = 0;
-    size_t batch_size = (size_t)GetArg("-dbbatchsize", nDefaultDbBatchSize);
-    int crash_simulate = GetArg("-dbcrashratio", 0);
+    size_t batch_size = (size_t)gArgs.GetArg("-dbbatchsize", nDefaultDbBatchSize);
+    int crash_simulate = gArgs.GetArg("-dbcrashratio", 0);
     assert(!hashBlock.IsNull());
 
     uint256 old_tip = GetBestBlock();
diff --git a/src/validation.cpp b/src/validation.cpp
index f21700c673..8bd23a0f1d 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -398,7 +398,7 @@ void UpdateMempoolForReorg(DisconnectedBlockTransactions &disconnectpool, bool f
     // We also need to remove any now-immature transactions
     mempool.removeForReorg(pcoinsTip, chainActive.Tip()->nHeight + 1, STANDARD_LOCKTIME_VERIFY_FLAGS);
     // Re-limit mempool size, in case we added any transactions
-    LimitMempoolSize(mempool, GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000, GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60);
+    LimitMempoolSize(mempool, gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000, gArgs.GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60);
 }
 
 // Used to avoid mempool polluting consensus critical paths if CCoinsViewMempool
@@ -456,7 +456,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
 
     // Reject transactions with witness before segregated witness activates (override with -prematurewitness)
     bool witnessEnabled = IsWitnessEnabled(chainActive.Tip(), chainparams.GetConsensus());
-    if (!GetBoolArg("-prematurewitness", false) && tx.HasWitness() && !witnessEnabled) {
+    if (!gArgs.GetBoolArg("-prematurewitness", false) && tx.HasWitness() && !witnessEnabled) {
         return state.DoS(0, false, REJECT_NONSTANDARD, "no-witness-yet", true);
     }
 
@@ -611,7 +611,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
             return state.DoS(0, false, REJECT_NONSTANDARD, "bad-txns-too-many-sigops", false,
                 strprintf("%d", nSigOpsCost));
 
-        CAmount mempoolRejectFee = pool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nSize);
+        CAmount mempoolRejectFee = pool.GetMinFee(gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nSize);
         if (mempoolRejectFee > 0 && nModifiedFees < mempoolRejectFee) {
             return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool min fee not met", false, strprintf("%d < %d", nFees, mempoolRejectFee));
         }
@@ -628,10 +628,10 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
 
         // Calculate in-mempool ancestors, up to a limit.
         CTxMemPool::setEntries setAncestors;
-        size_t nLimitAncestors = GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT);
-        size_t nLimitAncestorSize = GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;
-        size_t nLimitDescendants = GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT);
-        size_t nLimitDescendantSize = GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT)*1000;
+        size_t nLimitAncestors = gArgs.GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT);
+        size_t nLimitAncestorSize = gArgs.GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;
+        size_t nLimitDescendants = gArgs.GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT);
+        size_t nLimitDescendantSize = gArgs.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT)*1000;
         std::string errString;
         if (!pool.CalculateMemPoolAncestors(entry, setAncestors, nLimitAncestors, nLimitAncestorSize, nLimitDescendants, nLimitDescendantSize, errString)) {
             return state.DoS(0, false, REJECT_NONSTANDARD, "too-long-mempool-chain", false, errString);
@@ -783,7 +783,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
 
         unsigned int scriptVerifyFlags = STANDARD_SCRIPT_VERIFY_FLAGS;
         if (!chainparams.RequireStandard()) {
-            scriptVerifyFlags = GetArg("-promiscuousmempoolflags", scriptVerifyFlags);
+            scriptVerifyFlags = gArgs.GetArg("-promiscuousmempoolflags", scriptVerifyFlags);
         }
 
         // Check against previous transactions
@@ -860,7 +860,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
 
         // trim mempool and check if tx was trimmed
         if (!fOverrideMempoolLimit) {
-            LimitMempoolSize(pool, GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000, GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60);
+            LimitMempoolSize(pool, gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000, gArgs.GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60);
             if (!pool.exists(hash))
                 return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool full");
         }
@@ -1061,7 +1061,7 @@ CBlockIndex *pindexBestForkTip = nullptr, *pindexBestForkBase = nullptr;
 static void AlertNotify(const std::string& strMessage)
 {
     uiInterface.NotifyAlertChanged();
-    std::string strCmd = GetArg("-alertnotify", "");
+    std::string strCmd = gArgs.GetArg("-alertnotify", "");
     if (strCmd.empty()) return;
 
     // Alert text should be plain ascii coming from a trusted source, but to
@@ -1216,7 +1216,7 @@ static uint256 scriptExecutionCacheNonce(GetRandHash());
 void InitScriptExecutionCache() {
     // nMaxCacheSize is unsigned. If -maxsigcachesize is set to zero,
     // setup_bytes creates the minimum possible cache (2 elements).
-    size_t nMaxCacheSize = std::min(std::max((int64_t)0, GetArg("-maxsigcachesize", DEFAULT_MAX_SIG_CACHE_SIZE) / 2), MAX_MAX_SIG_CACHE_SIZE) * ((size_t) 1 << 20);
+    size_t nMaxCacheSize = std::min(std::max((int64_t)0, gArgs.GetArg("-maxsigcachesize", DEFAULT_MAX_SIG_CACHE_SIZE) / 2), MAX_MAX_SIG_CACHE_SIZE) * ((size_t) 1 << 20);
     size_t nElems = scriptExecutionCache.setup_bytes(nMaxCacheSize);
     LogPrintf("Using %zu MiB out of %zu/2 requested for script execution cache, able to store %zu elements\n",
             (nElems*sizeof(uint256)) >>20, (nMaxCacheSize*2)>>20, nElems);
@@ -1900,7 +1900,7 @@ bool static FlushStateToDisk(const CChainParams& chainparams, CValidationState &
         if (nLastSetChain == 0) {
             nLastSetChain = nNow;
         }
-        int64_t nMempoolSizeMax = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
+        int64_t nMempoolSizeMax = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
         int64_t cacheSize = pcoinsTip->DynamicMemoryUsage();
         int64_t nTotalSpace = nCoinCacheUsage + std::max<int64_t>(nMempoolSizeMax - nMempoolUsage, 0);
         // The cache is large and we're within 10% and 10 MiB of the limit, but we have time now (not in the middle of a block processing).
@@ -2421,7 +2421,7 @@ bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams,
 
     CBlockIndex *pindexMostWork = nullptr;
     CBlockIndex *pindexNewTip = nullptr;
-    int nStopAtHeight = GetArg("-stopatheight", DEFAULT_STOPATHEIGHT);
+    int nStopAtHeight = gArgs.GetArg("-stopatheight", DEFAULT_STOPATHEIGHT);
     do {
         boost::this_thread::interruption_point();
         if (ShutdownRequested())
@@ -3892,7 +3892,7 @@ bool LoadBlockIndex(const CChainParams& chainparams)
 
         LogPrintf("Initializing databases...\n");
         // Use the provided setting for -txindex in the new database
-        fTxIndex = GetBoolArg("-txindex", DEFAULT_TXINDEX);
+        fTxIndex = gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX);
         pblocktree->WriteFlag("txindex", fTxIndex);
     }
     return true;
@@ -4263,7 +4263,7 @@ static const uint64_t MEMPOOL_DUMP_VERSION = 1;
 bool LoadMempool(void)
 {
     const CChainParams& chainparams = Params();
-    int64_t nExpiryTimeout = GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60;
+    int64_t nExpiryTimeout = gArgs.GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60;
     FILE* filestr = fsbridge::fopen(GetDataDir() / "mempool.dat", "rb");
     CAutoFile file(filestr, SER_DISK, CLIENT_VERSION);
     if (file.IsNull()) {
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index 4c06c2c1f9..b12d46e40a 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -78,7 +78,7 @@ bool CDBEnv::Open(const fs::path& pathIn)
     LogPrintf("CDBEnv::Open: LogDir=%s ErrorFile=%s\n", pathLogDir.string(), pathErrorFile.string());
 
     unsigned int nEnvFlags = 0;
-    if (GetBoolArg("-privdb", DEFAULT_WALLET_PRIVDB))
+    if (gArgs.GetBoolArg("-privdb", DEFAULT_WALLET_PRIVDB))
         nEnvFlags |= DB_PRIVATE;
 
     dbenv->set_lg_dir(pathLogDir.string().c_str());
@@ -429,7 +429,7 @@ void CDB::Flush()
     if (fReadOnly)
         nMinutes = 1;
 
-    env->dbenv->txn_checkpoint(nMinutes ? GetArg("-dblogsize", DEFAULT_WALLET_DBLOGSIZE) * 1024 : 0, nMinutes, 0);
+    env->dbenv->txn_checkpoint(nMinutes ? gArgs.GetArg("-dblogsize", DEFAULT_WALLET_DBLOGSIZE) * 1024 : 0, nMinutes, 0);
 }
 
 void CWalletDBWrapper::IncrementUpdateCounter()
diff --git a/src/wallet/feebumper.cpp b/src/wallet/feebumper.cpp
index 4bfd8726a5..c1ea2b6290 100644
--- a/src/wallet/feebumper.cpp
+++ b/src/wallet/feebumper.cpp
@@ -193,7 +193,7 @@ CFeeBumper::CFeeBumper(const CWallet *pWallet, const uint256 txidIn, const CCoin
     // This may occur if the user set TotalFee or paytxfee too low, if fallbackfee is too low, or, perhaps,
     // in a rare situation where the mempool minimum fee increased significantly since the fee estimation just a
     // moment earlier. In this case, we report an error to the user, who may use totalFee to make an adjustment.
-    CFeeRate minMempoolFeeRate = mempool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000);
+    CFeeRate minMempoolFeeRate = mempool.GetMinFee(gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000);
     if (nNewFeeRate.GetFeePerK() < minMempoolFeeRate.GetFeePerK()) {
         vErrors.push_back(strprintf("New fee rate (%s) is less than the minimum fee rate (%s) to get into the mempool. totalFee value should to be at least %s or settxfee value should be at least %s to add transaction.", FormatMoney(nNewFeeRate.GetFeePerK()), FormatMoney(minMempoolFeeRate.GetFeePerK()), FormatMoney(minMempoolFeeRate.GetFee(maxNewTxSize)), FormatMoney(minMempoolFeeRate.GetFeePerK())));
         currentResult = BumpFeeResult::WALLET_ERROR;
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 8ef33f248b..a6176c3485 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -1197,7 +1197,7 @@ UniValue addwitnessaddress(const JSONRPCRequest& request)
 
     {
         LOCK(cs_main);
-        if (!IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus()) && !GetBoolArg("-walletprematurewitness", false)) {
+        if (!IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus()) && !gArgs.GetBoolArg("-walletprematurewitness", false)) {
             throw JSONRPCError(RPC_WALLET_ERROR, "Segregated witness not enabled on network");
         }
     }
@@ -3202,7 +3202,7 @@ static const CRPCCommand commands[] =
 
 void RegisterWalletRPCCommands(CRPCTable &t)
 {
-    if (GetBoolArg("-disablewallet", false))
+    if (gArgs.GetBoolArg("-disablewallet", false))
         return;
 
     for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++)
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index c152b9d697..599e74149c 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -496,7 +496,7 @@ void CWallet::Flush(bool shutdown)
 
 bool CWallet::Verify()
 {
-    if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET))
+    if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET))
         return true;
 
     uiInterface.InitMessage(_("Verifying wallet(s)..."));
@@ -528,7 +528,7 @@ bool CWallet::Verify()
             return InitError(strError);
         }
 
-        if (GetBoolArg("-salvagewallet", false)) {
+        if (gArgs.GetBoolArg("-salvagewallet", false)) {
             // Recover readable keypairs:
             CWallet dummyWallet;
             std::string backup_filename;
@@ -986,7 +986,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose)
     NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
 
     // notify an external script when a wallet transaction comes in or is updated
-    std::string strCmd = GetArg("-walletnotify", "");
+    std::string strCmd = gArgs.GetArg("-walletnotify", "");
 
     if ( !strCmd.empty())
     {
@@ -2501,8 +2501,8 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm
             ++it;
     }
 
-    size_t nMaxChainLength = std::min(GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT), GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT));
-    bool fRejectLongChains = GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS);
+    size_t nMaxChainLength = std::min(gArgs.GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT), gArgs.GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT));
+    bool fRejectLongChains = gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS);
 
     bool res = nTargetValue <= nValueFromPresetInputs ||
         SelectCoinsMinConf(nTargetValue - nValueFromPresetInputs, 1, 6, 0, vCoins, setCoinsRet, nValueRet) ||
@@ -2937,15 +2937,15 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
         }
     }
 
-    if (GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS)) {
+    if (gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS)) {
         // Lastly, ensure this tx will pass the mempool's chain limits
         LockPoints lp;
         CTxMemPoolEntry entry(wtxNew.tx, 0, 0, 0, false, 0, lp);
         CTxMemPool::setEntries setAncestors;
-        size_t nLimitAncestors = GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT);
-        size_t nLimitAncestorSize = GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;
-        size_t nLimitDescendants = GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT);
-        size_t nLimitDescendantSize = GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT)*1000;
+        size_t nLimitAncestors = gArgs.GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT);
+        size_t nLimitAncestorSize = gArgs.GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;
+        size_t nLimitDescendants = gArgs.GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT);
+        size_t nLimitDescendantSize = gArgs.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT)*1000;
         std::string errString;
         if (!mempool.CalculateMemPoolAncestors(entry, setAncestors, nLimitAncestors, nLimitAncestorSize, nLimitDescendants, nLimitDescendantSize, errString)) {
             strFailReason = _("Transaction has too long of a mempool chain");
@@ -3072,7 +3072,7 @@ CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, const CCoinControl& coin_c
             if (feeCalc) feeCalc->reason = FeeReason::FALLBACK;
         }
         // Obey mempool min fee when using smart fee estimation
-        CAmount min_mempool_fee = pool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nTxBytes);
+        CAmount min_mempool_fee = pool.GetMinFee(gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nTxBytes);
         if (fee_needed < min_mempool_fee) {
             fee_needed = min_mempool_fee;
             if (feeCalc) feeCalc->reason = FeeReason::MEMPOOL_MIN;
@@ -3307,7 +3307,7 @@ bool CWallet::TopUpKeyPool(unsigned int kpSize)
         if (kpSize > 0)
             nTargetSize = kpSize;
         else
-            nTargetSize = std::max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t) 0);
+            nTargetSize = std::max(gArgs.GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t) 0);
 
         // count amount of available keys (internal, external)
         // make sure the keypool of external and internal keys fits the user selected target (-keypool)
@@ -3933,7 +3933,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
     // needed to restore wallet transaction meta data after -zapwallettxes
     std::vector<CWalletTx> vWtx;
 
-    if (GetBoolArg("-zapwallettxes", false)) {
+    if (gArgs.GetBoolArg("-zapwallettxes", false)) {
         uiInterface.InitMessage(_("Zapping all transactions from wallet..."));
 
         std::unique_ptr<CWalletDBWrapper> dbw(new CWalletDBWrapper(&bitdb, walletFile));
@@ -3982,9 +3982,9 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
         }
     }
 
-    if (GetBoolArg("-upgradewallet", fFirstRun))
+    if (gArgs.GetBoolArg("-upgradewallet", fFirstRun))
     {
-        int nMaxVersion = GetArg("-upgradewallet", 0);
+        int nMaxVersion = gArgs.GetArg("-upgradewallet", 0);
         if (nMaxVersion == 0) // the -upgradewallet without argument case
         {
             LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST);
@@ -4004,7 +4004,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
     if (fFirstRun)
     {
         // Create new keyUser and set as default key
-        if (GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET) && !walletInstance->IsHDEnabled()) {
+        if (gArgs.GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET) && !walletInstance->IsHDEnabled()) {
 
             // ensure this wallet.dat can only be opened by clients supporting HD with chain split
             walletInstance->SetMinVersion(FEATURE_HD_SPLIT);
@@ -4025,8 +4025,8 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
 
         walletInstance->SetBestChain(chainActive.GetLocator());
     }
-    else if (IsArgSet("-usehd")) {
-        bool useHD = GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET);
+    else if (gArgs.IsArgSet("-usehd")) {
+        bool useHD = gArgs.GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET);
         if (walletInstance->IsHDEnabled() && !useHD) {
             InitError(strprintf(_("Error loading %s: You can't disable HD on an already existing HD wallet"), walletFile));
             return nullptr;
@@ -4045,7 +4045,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
     walletInstance->TopUpKeyPool();
 
     CBlockIndex *pindexRescan = chainActive.Genesis();
-    if (!GetBoolArg("-rescan", false))
+    if (!gArgs.GetBoolArg("-rescan", false))
     {
         CWalletDB walletdb(*walletInstance->dbw);
         CBlockLocator locator;
@@ -4085,7 +4085,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
         walletInstance->dbw->IncrementUpdateCounter();
 
         // Restore wallet transaction metadata after -zapwallettxes=1
-        if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2")
+        if (gArgs.GetBoolArg("-zapwallettxes", false) && gArgs.GetArg("-zapwallettxes", "1") != "2")
         {
             CWalletDB walletdb(*walletInstance->dbw);
 
@@ -4109,7 +4109,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
             }
         }
     }
-    walletInstance->SetBroadcastTransactions(GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST));
+    walletInstance->SetBroadcastTransactions(gArgs.GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST));
 
     {
         LOCK(walletInstance->cs_wallet);
@@ -4123,7 +4123,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile)
 
 bool CWallet::InitLoadWallet()
 {
-    if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
+    if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
         LogPrintf("Wallet disabled!\n");
         return true;
     }
@@ -4155,29 +4155,29 @@ void CWallet::postInitProcess(CScheduler& scheduler)
 
 bool CWallet::ParameterInteraction()
 {
-    SoftSetArg("-wallet", DEFAULT_WALLET_DAT);
+    gArgs.SoftSetArg("-wallet", DEFAULT_WALLET_DAT);
     const bool is_multiwallet = gArgs.GetArgs("-wallet").size() > 1;
 
-    if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET))
+    if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET))
         return true;
 
-    if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && SoftSetBoolArg("-walletbroadcast", false)) {
+    if (gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && gArgs.SoftSetBoolArg("-walletbroadcast", false)) {
         LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
     }
 
-    if (GetBoolArg("-salvagewallet", false)) {
+    if (gArgs.GetBoolArg("-salvagewallet", false)) {
         if (is_multiwallet) {
             return InitError(strprintf("%s is only allowed with a single wallet file", "-salvagewallet"));
         }
         // Rewrite just private keys: rescan to find transactions
-        if (SoftSetBoolArg("-rescan", true)) {
+        if (gArgs.SoftSetBoolArg("-rescan", true)) {
             LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
         }
     }
 
-    int zapwallettxes = GetArg("-zapwallettxes", 0);
+    int zapwallettxes = gArgs.GetArg("-zapwallettxes", 0);
     // -zapwallettxes implies dropping the mempool on startup
-    if (zapwallettxes != 0 && SoftSetBoolArg("-persistmempool", false)) {
+    if (zapwallettxes != 0 && gArgs.SoftSetBoolArg("-persistmempool", false)) {
         LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -persistmempool=0\n", __func__, zapwallettxes);
     }
 
@@ -4186,61 +4186,61 @@ bool CWallet::ParameterInteraction()
         if (is_multiwallet) {
             return InitError(strprintf("%s is only allowed with a single wallet file", "-zapwallettxes"));
         }
-        if (SoftSetBoolArg("-rescan", true)) {
+        if (gArgs.SoftSetBoolArg("-rescan", true)) {
             LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -rescan=1\n", __func__, zapwallettxes);
         }
     }
 
     if (is_multiwallet) {
-        if (GetBoolArg("-upgradewallet", false)) {
+        if (gArgs.GetBoolArg("-upgradewallet", false)) {
             return InitError(strprintf("%s is only allowed with a single wallet file", "-upgradewallet"));
         }
     }
 
-    if (GetBoolArg("-sysperms", false))
+    if (gArgs.GetBoolArg("-sysperms", false))
         return InitError("-sysperms is not allowed in combination with enabled wallet functionality");
-    if (GetArg("-prune", 0) && GetBoolArg("-rescan", false))
+    if (gArgs.GetArg("-prune", 0) && gArgs.GetBoolArg("-rescan", false))
         return InitError(_("Rescans are not possible in pruned mode. You will need to use -reindex which will download the whole blockchain again."));
 
     if (::minRelayTxFee.GetFeePerK() > HIGH_TX_FEE_PER_KB)
         InitWarning(AmountHighWarn("-minrelaytxfee") + " " +
                     _("The wallet will avoid paying less than the minimum relay fee."));
 
-    if (IsArgSet("-mintxfee"))
+    if (gArgs.IsArgSet("-mintxfee"))
     {
         CAmount n = 0;
-        if (!ParseMoney(GetArg("-mintxfee", ""), n) || 0 == n)
-            return InitError(AmountErrMsg("mintxfee", GetArg("-mintxfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-mintxfee", ""), n) || 0 == n)
+            return InitError(AmountErrMsg("mintxfee", gArgs.GetArg("-mintxfee", "")));
         if (n > HIGH_TX_FEE_PER_KB)
             InitWarning(AmountHighWarn("-mintxfee") + " " +
                         _("This is the minimum transaction fee you pay on every transaction."));
         CWallet::minTxFee = CFeeRate(n);
     }
-    if (IsArgSet("-fallbackfee"))
+    if (gArgs.IsArgSet("-fallbackfee"))
     {
         CAmount nFeePerK = 0;
-        if (!ParseMoney(GetArg("-fallbackfee", ""), nFeePerK))
-            return InitError(strprintf(_("Invalid amount for -fallbackfee=<amount>: '%s'"), GetArg("-fallbackfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-fallbackfee", ""), nFeePerK))
+            return InitError(strprintf(_("Invalid amount for -fallbackfee=<amount>: '%s'"), gArgs.GetArg("-fallbackfee", "")));
         if (nFeePerK > HIGH_TX_FEE_PER_KB)
             InitWarning(AmountHighWarn("-fallbackfee") + " " +
                         _("This is the transaction fee you may pay when fee estimates are not available."));
         CWallet::fallbackFee = CFeeRate(nFeePerK);
     }
-    if (IsArgSet("-discardfee"))
+    if (gArgs.IsArgSet("-discardfee"))
     {
         CAmount nFeePerK = 0;
-        if (!ParseMoney(GetArg("-discardfee", ""), nFeePerK))
-            return InitError(strprintf(_("Invalid amount for -discardfee=<amount>: '%s'"), GetArg("-discardfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-discardfee", ""), nFeePerK))
+            return InitError(strprintf(_("Invalid amount for -discardfee=<amount>: '%s'"), gArgs.GetArg("-discardfee", "")));
         if (nFeePerK > HIGH_TX_FEE_PER_KB)
             InitWarning(AmountHighWarn("-discardfee") + " " +
                         _("This is the transaction fee you may discard if change is smaller than dust at this level"));
         CWallet::m_discard_rate = CFeeRate(nFeePerK);
     }
-    if (IsArgSet("-paytxfee"))
+    if (gArgs.IsArgSet("-paytxfee"))
     {
         CAmount nFeePerK = 0;
-        if (!ParseMoney(GetArg("-paytxfee", ""), nFeePerK))
-            return InitError(AmountErrMsg("paytxfee", GetArg("-paytxfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-paytxfee", ""), nFeePerK))
+            return InitError(AmountErrMsg("paytxfee", gArgs.GetArg("-paytxfee", "")));
         if (nFeePerK > HIGH_TX_FEE_PER_KB)
             InitWarning(AmountHighWarn("-paytxfee") + " " +
                         _("This is the transaction fee you will pay if you send a transaction."));
@@ -4249,26 +4249,26 @@ bool CWallet::ParameterInteraction()
         if (payTxFee < ::minRelayTxFee)
         {
             return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
-                                       GetArg("-paytxfee", ""), ::minRelayTxFee.ToString()));
+                                       gArgs.GetArg("-paytxfee", ""), ::minRelayTxFee.ToString()));
         }
     }
-    if (IsArgSet("-maxtxfee"))
+    if (gArgs.IsArgSet("-maxtxfee"))
     {
         CAmount nMaxFee = 0;
-        if (!ParseMoney(GetArg("-maxtxfee", ""), nMaxFee))
-            return InitError(AmountErrMsg("maxtxfee", GetArg("-maxtxfee", "")));
+        if (!ParseMoney(gArgs.GetArg("-maxtxfee", ""), nMaxFee))
+            return InitError(AmountErrMsg("maxtxfee", gArgs.GetArg("-maxtxfee", "")));
         if (nMaxFee > HIGH_MAX_TX_FEE)
             InitWarning(_("-maxtxfee is set very high! Fees this large could be paid on a single transaction."));
         maxTxFee = nMaxFee;
         if (CFeeRate(maxTxFee, 1000) < ::minRelayTxFee)
         {
             return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
-                                       GetArg("-maxtxfee", ""), ::minRelayTxFee.ToString()));
+                                       gArgs.GetArg("-maxtxfee", ""), ::minRelayTxFee.ToString()));
         }
     }
-    nTxConfirmTarget = GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
-    bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE);
-    fWalletRbf = GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF);
+    nTxConfirmTarget = gArgs.GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
+    bSpendZeroConfChange = gArgs.GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE);
+    fWalletRbf = gArgs.GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF);
 
     return true;
 }
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
index c8dc526264..72c22d2259 100644
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -573,7 +573,7 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
                     fNoncriticalErrors = true; // ... but do warn the user there is something wrong.
                     if (strType == "tx")
                         // Rescan if there is a bad transaction record:
-                        SoftSetBoolArg("-rescan", true);
+                        gArgs.SoftSetBoolArg("-rescan", true);
                 }
             }
             if (!strErr.empty())
@@ -751,7 +751,7 @@ void MaybeCompactWalletDB()
     if (fOneThread.exchange(true)) {
         return;
     }
-    if (!GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET)) {
+    if (!gArgs.GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET)) {
         return;
     }
 
diff --git a/src/warnings.cpp b/src/warnings.cpp
index 75ccfeb116..d4e33b701a 100644
--- a/src/warnings.cpp
+++ b/src/warnings.cpp
@@ -51,7 +51,7 @@ std::string GetWarnings(const std::string& strFor)
         strGUI = _("This is a pre-release test build - use at your own risk - do not use for mining or merchant applications");
     }
 
-    if (GetBoolArg("-testsafemode", DEFAULT_TESTSAFEMODE))
+    if (gArgs.GetBoolArg("-testsafemode", DEFAULT_TESTSAFEMODE))
         strStatusBar = strRPC = strGUI = "testsafemode enabled";
 
     // Misc warnings like out of disk space and clock is wrong
diff --git a/src/zmq/zmqnotificationinterface.cpp b/src/zmq/zmqnotificationinterface.cpp
index b637f26fb2..c410cc269f 100644
--- a/src/zmq/zmqnotificationinterface.cpp
+++ b/src/zmq/zmqnotificationinterface.cpp
@@ -43,10 +43,10 @@ CZMQNotificationInterface* CZMQNotificationInterface::Create()
     for (std::map<std::string, CZMQNotifierFactory>::const_iterator i=factories.begin(); i!=factories.end(); ++i)
     {
         std::string arg("-zmq" + i->first);
-        if (IsArgSet(arg))
+        if (gArgs.IsArgSet(arg))
         {
             CZMQNotifierFactory factory = i->second;
-            std::string address = GetArg(arg, "");
+            std::string address = gArgs.GetArg(arg, "");
             CZMQAbstractNotifier *notifier = factory();
             notifier->SetType(i->first);
             notifier->SetAddress(address);