Fix Pylon backend not working on dedicated server

Also fix dual thread for backend, and main thread pausing when request is slow

r5dev/engine/host_state.cpp

@@ -94,7 +94,6 @@ FORCEINLINE void CHostState::FrameUpdate(void* rcx, void* rdx, float time)
 			}
 			case HostStates_t::HS_RUN:
 			{
-				g_pHostState->Think();
 				State_RunFn(&g_pHostState->m_iCurrentState, nullptr, time);
 				break;
 			}
@@ -153,6 +152,9 @@ FORCEINLINE void CHostState::Setup(void) const
 	g_pRConClient->Init();
 #endif // DEDICATED
 
+	std::thread t1(&CHostState::Think, this);
+	t1.detach();
+
 	*reinterpret_cast<bool*>(m_bRestrictServerCommands) = true; // Restrict commands.
 	ConCommandBase* disconnect = g_pCVar->FindCommandBase("disconnect");
 	disconnect->AddFlags(FCVAR_SERVER_CAN_EXECUTE); // Make sure server is not restricted to this.
@@ -182,12 +184,15 @@ FORCEINLINE void CHostState::Think(void) const
 	static CFastTimer statsTimer;
 	static ConVar* hostname = g_pCVar->FindVar("hostname");
 
+	for (;;) // Loop running at 20-tps.
+	{
 		if (!bInitialized) // Initialize clocks.
 		{
 			banListTimer.Start();
+#ifdef DEDICATED
 			pylonTimer.Start();
+#endif // DEDICATED
 			statsTimer.Start();
-
 			bInitialized = true;
 		}
 
@@ -196,11 +201,13 @@ FORCEINLINE void CHostState::Think(void) const
 			g_pBanSystem->BanListCheck();
 			banListTimer.Start();
 		}
+#ifdef DEDICATED
 		if (pylonTimer.GetDurationInProgress().GetSeconds() > 5.0)
 		{
 			KeepAliveToPylon();
 			pylonTimer.Start();
 		}
+#endif // DEDICATED
 		if (statsTimer.GetDurationInProgress().GetSeconds() > 1.0)
 		{
 			std::string svCurrentPlaylist = KeyValues_GetCurrentPlaylist();
@@ -210,6 +217,8 @@ FORCEINLINE void CHostState::Think(void) const
 				hostname->GetString(), nPlayerCount, g_ServerGlobalVariables->m_nMaxClients, svCurrentPlaylist.c_str(), m_levelName).c_str());
 			statsTimer.Start();
 		}
+		std::this_thread::sleep_for(std::chrono::milliseconds(50));
+	}
 }
 
 //-----------------------------------------------------------------------------

r5dev/gameui/IBrowser.cpp

@@ -640,16 +640,18 @@ void IBrowser::UpdateHostingStatus(void)
 void IBrowser::SendHostingPostRequest(void)
 {
 #ifndef GAMECLIENTONLY
+    static ConVar* hostport = g_pCVar->FindVar("hostport");
+    static ConVar* mp_gamemode = g_pCVar->FindVar("mp_gamemode");
+
     m_szHostToken = std::string();
-    DevMsg(eDLL_T::CLIENT, "Sending PostServerHost request\n");
     bool result = g_pR5net->PostServerHost(m_szHostRequestMessage, m_szHostToken,
         ServerListing
         {
-            m_Server.svServerName,
+            m_Server.svServerName.c_str(),
             std::string(g_pHostState->m_levelName),
             "",
-            g_pCVar->FindVar("hostport")->GetString(),
+            hostport->GetString(),
-            g_pCVar->FindVar("mp_gamemode")->GetString(),
+            mp_gamemode->GetString(),
             m_Server.bHidden,
             std::to_string(*g_nClientRemoteChecksum),
 

r5dev/networksystem/pylon.cpp

@@ -29,7 +29,6 @@ void KeepAliveToPylon()
 		std::string m_szHostToken = std::string();
 		std::string m_szHostRequestMessage = std::string();
 
-		DevMsg(eDLL_T::SERVER, "Sending PostServerHost request\n");
 		bool result = g_pR5net->PostServerHost(m_szHostRequestMessage, m_szHostToken,
 			ServerListing{
 				hostname->GetString(),

r5dev/networksystem/r5net.cpp

@@ -21,17 +21,18 @@ std::vector<ServerListing> R5Net::Client::GetServersList(std::string& svOutMessa
 {
     std::vector<ServerListing> vslList{};
 
-    nlohmann::json jsReqBody = nlohmann::json::object();
+    nlohmann::json jsRequestBody = nlohmann::json::object();
-    jsReqBody["version"] = GetSDKVersion();
+    jsRequestBody["version"] = GetSDKVersion();
 
-    std::string reqBodyStr = jsReqBody.dump();
+    std::string svRequestBody = jsRequestBody.dump(4);
 
     if (r5net_show_debug->GetBool())
     {
        DevMsg(eDLL_T::ENGINE, "Sending GetServerList post.\n");
+       DevMsg(eDLL_T::ENGINE, "%s - Sending server list request to comp-server:\n%s\n", __FUNCTION__, svRequestBody.c_str());
     }
 
-    httplib::Result htResults = m_HttpClient.Post("/servers", jsReqBody.dump().c_str(), jsReqBody.dump().length(), "application/json");
+    httplib::Result htResults = m_HttpClient.Post("/servers", jsRequestBody.dump().c_str(), jsRequestBody.dump().length(), "application/json");
 
     if (htResults && r5net_show_debug->GetBool())
     {
@@ -122,18 +123,18 @@ bool R5Net::Client::PostServerHost(std::string& svOutMessage, std::string& svOut
     jsRequestBody["encKey"] = slServerListing.svEncryptionKey;
     jsRequestBody["hidden"] = slServerListing.bHidden;
 
-    std::string svRequestBody = jsRequestBody.dump();
+    std::string svRequestBody = jsRequestBody.dump(4);
 
     if (r5net_show_debug->GetBool())
     {
-        DevMsg(eDLL_T::ENGINE, "Sending PostServerHost post '%s'.\n", svRequestBody.c_str());
+        DevMsg(eDLL_T::ENGINE, "%s - Sending post host request to comp-server:\n%s\n", __FUNCTION__, svRequestBody.c_str());
     }
 
     httplib::Result htResults = m_HttpClient.Post("/servers/add", svRequestBody.c_str(), svRequestBody.length(), "application/json");
 
     if (htResults && r5net_show_debug->GetBool())
     {
-        DevMsg(eDLL_T::ENGINE, "PostServerHost replied with '%d'.\n", htResults->status);
+        DevMsg(eDLL_T::ENGINE, "%s - Comp-server replied with '%d'\n", __FUNCTION__, htResults->status);
     }
 
     if (htResults && htResults->status == 200) // STATUS_OK
@@ -209,19 +210,20 @@ bool R5Net::Client::PostServerHost(std::string& svOutMessage, std::string& svOut
 bool R5Net::Client::GetServerByToken(ServerListing& slOutServer, std::string& svOutMessage, const std::string svToken)
 {
     nlohmann::json jsRequestBody = nlohmann::json::object();
-
     jsRequestBody["token"] = svToken;
 
+    std::string svRequestBody = jsRequestBody.dump(4);
+
     if (r5net_show_debug->GetBool())
     {
-        DevMsg(eDLL_T::ENGINE, "Sending GetServerByToken post.\n");
+        DevMsg(eDLL_T::ENGINE, "%s - Sending token connect request to comp-server:\n%s\n", __FUNCTION__, svRequestBody.c_str());
     }
 
     httplib::Result htResults = m_HttpClient.Post("/server/byToken", jsRequestBody.dump().c_str(), jsRequestBody.dump().length(), "application/json");
 
     if (r5net_show_debug->GetBool())
     {
-        DevMsg(eDLL_T::ENGINE, "GetServerByToken replied with '%d'\n", htResults->status);
+        DevMsg(eDLL_T::ENGINE, "%s - Comp-server replied with '%d'\n", __FUNCTION__, htResults->status);
     }
 
     if (htResults && htResults->status == 200) // STATUS_OK

r5dev/tier0/IConVar.cpp

@@ -140,7 +140,7 @@ void ConVar::Init(void) const
 	r5net_show_debug           = new ConVar("r5net_show_debug"          , "1"                        , FCVAR_DEVELOPMENTONLY, "Shows debug output for R5Net.", false, 0.f, false, 0.f, nullptr, nullptr);
 	//-------------------------------------------------------------------------
 	// RTECH API                                                              |
-	
+	//-------------------------------------------------------------------------
 	// RUI                                                                    |
 #ifndef DEDICATED
 	rui_drawEnable = new ConVar("rui_drawEnable", "1", FCVAR_RELEASE, "Draws the RUI, 1 = Draw, 0 = No Draw.", false, 0.f, false, 0.f, nullptr, nullptr);
@@ -505,7 +505,7 @@ void ConVar::ChangeStringValue(const char* pszTempVal, float flOldValue)
 		m_Value.m_pszString = NULL;
 	}
 
-	pszOldValue = 0;
+	pszOldValue = NULL;
 }
 
 //-----------------------------------------------------------------------------

r5dev/tier0/cvar.cpp

@@ -97,7 +97,7 @@ ConVar* r5net_matchmaking_hostname         = nullptr;
 ConVar* r5net_show_debug                   = nullptr;
 //-----------------------------------------------------------------------------
 // RTECH API                                                                  |
-
+//-----------------------------------------------------------------------------
 // RUI                                                                        |
 #ifndef DEDICATED
 ConVar* rui_drawEnable                     = nullptr;

r5dev/tier0/cvar.h

@@ -107,7 +107,7 @@ extern ConVar* r5net_matchmaking_hostname;
 extern ConVar* r5net_show_debug;
 //-----------------------------------------------------------------------------
 // RTECH API                                                                  |
-
+//-----------------------------------------------------------------------------
 // RUI                                                                        |
 #ifndef DEDICATED
 extern ConVar* rui_drawEnable;