Added check for Stateview, added socket cancel to finish all connect, send and receive operations immediately

.github/workflows/linux.yml

@@ -3,8 +3,8 @@ name: Linux
 on:
   push:
     branches:
-      - "develop"
+      - 'develop'
-      - "minor"
+      - 'minor'
   pull_request:
 
 env: 
@@ -20,9 +20,9 @@ jobs:
       matrix:
         include:
           - distro: debian
-            version: 12
+            version: 11
           - distro: debian
-            version: 13
+            version: 12
           - distro: ubuntu
             version: 22.04
           - distro: ubuntu
@@ -47,8 +47,7 @@ jobs:
 
       - uses: actions/checkout@v2
         with:
-          submodules: "recursive"
+          submodules: 'recursive'
-          fetch-depth: 0
 
       - name: Git config safe directory
         shell: bash
@@ -85,16 +84,16 @@ jobs:
         run: ./bin/BeamMP-Server-tests
 
   arm64-matrix:
-    runs-on: ubuntu-22.04-arm
+    runs-on: [Linux, ARM64]
     env:
       VCPKG_DEFAULT_TRIPLET: "arm64-linux"
     strategy:
       matrix:
         include:
           - distro: debian
-            version: 12
+            version: 11
           - distro: debian
-            version: 13
+            version: 12
           - distro: ubuntu
             version: 22.04
           - distro: ubuntu
@@ -119,8 +118,7 @@ jobs:
 
       - uses: actions/checkout@v2
         with:
-          submodules: "recursive"
+          submodules: 'recursive'
-          fetch-depth: 0
 
       - name: Git config safe directory
         shell: bash
@@ -155,3 +153,4 @@ jobs:
 
       - name: Test
         run: ./bin/BeamMP-Server-tests
+

.github/workflows/release.yml

@@ -3,7 +3,7 @@ on:
   push:
     # Sequence of patterns matched against refs/tags
     tags:
-      - "v*" # Push events to matching v*, i.e. v1.0, v20.15.10
+    - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10
 
 env:
   VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
@@ -39,9 +39,9 @@ jobs:
       matrix:
         include:
           - distro: debian
-            version: 12
+            version: 11
           - distro: debian
-            version: 13
+            version: 12
           - distro: ubuntu
             version: 22.04
           - distro: ubuntu
@@ -66,8 +66,7 @@ jobs:
 
       - uses: actions/checkout@v2
         with:
-          submodules: "recursive"
+          submodules: 'recursive'
-          fetch-depth: 0
 
       - name: Git config safe directory
         shell: bash
@@ -105,15 +104,15 @@ jobs:
           asset_content_type: application/x-elf
 
   arm64-matrix:
-    runs-on: ubuntu-22.04-arm
+    runs-on: [Linux, ARM64]
     needs: create-release
     strategy:
       matrix:
         include:
           - distro: debian
-            version: 12
+            version: 11
           - distro: debian
-            version: 13
+            version: 12
           - distro: ubuntu
             version: 22.04
           - distro: ubuntu
@@ -141,8 +140,7 @@ jobs:
 
       - uses: actions/checkout@v2
         with:
-          submodules: "recursive"
+          submodules: 'recursive'
-          fetch-depth: 0
 
       - name: Git config safe directory
         shell: bash
@@ -195,8 +193,7 @@ jobs:
 
       - uses: actions/checkout@v2
         with:
-          submodules: "recursive"
+          submodules: 'recursive'
-          fetch-depth: 0
 
       - name: Create Build Environment
         shell: bash

.github/workflows/windows.yml

@@ -26,7 +26,6 @@ jobs:
       - uses: actions/checkout@v2
         with:
           submodules: 'recursive'
-          fetch-depth: 0
 
       - name: Setup vcpkg
         uses: lukka/run-vcpkg@v11

CMakeLists.txt

@@ -8,7 +8,7 @@ include(cmake/Vcpkg.cmake) # needs to happen before project()
 
 project(
     "BeamMP-Server" # replace this
-    VERSION 3.9.3
+    VERSION 3.3.0
 )
 
 include(cmake/StandardSettings.cmake)
@@ -39,7 +39,6 @@ set(PRJ_HEADERS
     include/TConfig.h
     include/TConsole.h
     include/THeartbeatThread.h
-    include/TIoPollThread.h
     include/TLuaEngine.h
     include/TLuaPlugin.h
     include/TNetwork.h
@@ -53,8 +52,6 @@ set(PRJ_HEADERS
     include/Settings.h
     include/Profiling.h
     include/ChronoWrapper.h
-    include/TConnectionLimiter.h
-    include/TLuaResult.h
 )
 # add all source files (.cpp) to this, except the one with main()
 set(PRJ_SOURCES
@@ -68,7 +65,6 @@ set(PRJ_SOURCES
     src/TConfig.cpp
     src/TConsole.cpp
     src/THeartbeatThread.cpp
-    src/TIoPollThread.cpp
     src/TLuaEngine.cpp
     src/TLuaPlugin.cpp
     src/TNetwork.cpp
@@ -82,8 +78,6 @@ set(PRJ_SOURCES
     src/Settings.cpp
     src/Profiling.cpp
     src/ChronoWrapper.cpp
-    src/TConnectionLimiter.cpp
-    src/TLuaResult.cpp
 )
 
 find_package(Lua REQUIRED)
@@ -154,8 +148,7 @@ if(UNIX)
 endif(UNIX)
 
 if (WIN32)
-    add_compile_definitions(_WIN32_WINNT=0x0A00)
+    add_compile_options("-D_WIN32_WINNT=0x0601")
-
     add_compile_options("/bigobj")
 endif(WIN32)
 

cmake/Vcpkg.cmake

@@ -15,5 +15,3 @@ if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
     set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake)
 endif()
 
-# ensure SOL2 safeties are all ON
-add_compile_definitions(SOL_ALL_SAFETIES_ON=1)

include/Client.h

@@ -18,14 +18,12 @@
 
 #pragma once
 
-#include <atomic>
 #include <chrono>
 #include <memory>
 #include <optional>
 #include <queue>
 #include <string>
 #include <unordered_set>
-#include <utility>
 
 #include "BoostAliases.h"
 #include "Common.h"
@@ -58,22 +56,19 @@ public:
     ~TClient();
     TClient& operator=(const TClient&) = delete;
 
-    void AddNewCar(int Ident, const nlohmann::json& Data);
+    void AddNewCar(int Ident, const std::string& Data);
-    void SetCarData(int Ident, const nlohmann::json& Data);
+    void SetCarData(int Ident, const std::string& Data);
     void SetCarPosition(int Ident, const std::string& Data);
     TVehicleDataLockPair GetAllCars();
     void SetName(const std::string& Name) { mName = Name; }
     void SetRoles(const std::string& Role) { mRole = Role; }
     void SetIdentifier(const std::string& key, const std::string& value) { mIdentifiers[key] = value; }
-    nlohmann::json GetCarData(int Ident);
+    std::string GetCarData(int Ident);
     std::string GetCarPositionRaw(int Ident);
     void SetUDPAddr(const ip::udp::endpoint& Addr) { mUDPAddress = Addr; }
     void SetTCPSock(ip::tcp::socket&& CSock) { mSocket = std::move(CSock); }
-    // Returns true only for the thread that actually performs socket shutdown/close.
+    void Disconnect(std::string_view Reason);
-    [[nodiscard]] bool Disconnect(std::string_view Reason);
+    bool IsDisconnected() const { return !mSocket.is_open(); }
-    bool IsDisconnected() const {
-        return mDisconnectState.load(std::memory_order_acquire) != EDisconnectState::Connected;
-    }
     // locks
     void DeleteCar(int Ident);
     [[nodiscard]] const std::unordered_map<std::string, std::string>& GetIdentifiers() const { return mIdentifiers; }
@@ -106,16 +101,8 @@ public:
     [[nodiscard]] TServer& Server() const;
     void UpdatePingTime();
     int SecondsSinceLastPing();
-    void SetMagic(std::vector<uint8_t> magic) { mMagic = std::move(magic); }
-    [[nodiscard]] const std::vector<uint8_t>& GetMagic() const { return mMagic; }
 
 private:
-    enum class EDisconnectState {
-        Connected,
-        Disconnecting,
-        Disconnected
-    };
-
     void InsertVehicle(int ID, const std::string& Data);
 
     TServer& mServer;
@@ -131,8 +118,6 @@ private:
     TSetOfVehicleData mVehicleData;
     SparseArray<std::string> mVehiclePosition;
     std::string mName = "Unknown Client";
-    // Once disconnect starts, this client is terminal and its socket must be treated as dead.
-    std::atomic<EDisconnectState> mDisconnectState { EDisconnectState::Connected };
     ip::tcp::socket mSocket;
     ip::udp::endpoint mUDPAddress {};
     int mUnicycleID = -1;
@@ -140,7 +125,6 @@ private:
     std::string mDID;
     int mID = -1;
     std::chrono::time_point<std::chrono::high_resolution_clock> mLastPingTime = std::chrono::high_resolution_clock::now();
-    std::vector<uint8_t> mMagic;
 };
 
 std::optional<std::weak_ptr<TClient>> GetClient(class TServer& Server, int ID);

include/Common.h

@@ -74,7 +74,7 @@ public:
     static TConsole& Console() { return mConsole; }
     static std::string ServerVersionString();
     static const Version& ServerVersion() { return mVersion; }
-    static Version ClientMinimumVersion() { return Version { 2, 7, 0 }; }
+    static Version ClientMinimumVersion() { return Version { 2, 2, 0 }; }
     static std::string PPS() { return mPPS; }
     static void SetPPS(const std::string& NewPPS) { mPPS = NewPPS; }
 
@@ -86,8 +86,6 @@ public:
         };
     }
 
-    static std::string GetServerCheckUrl() { return "https://check.beammp.com"; }
-
     static std::string GetBackendUrlForAuth() { return "https://auth.beammp.com"; }
     static std::string GetBackendUrlForSocketIO() { return "https://backend.beammp.com"; }
     static void CheckForUpdates();
@@ -129,15 +127,10 @@ private:
     static inline std::mutex mShutdownHandlersMutex {};
     static inline std::deque<TShutdownHandler> mShutdownHandlers {};
 
-    static inline Version mVersion { 3, 9, 3 };
+    static inline Version mVersion { 3, 8, 1 };
 };
 
-/// Used to static_assert in std::visit
-template<class>
-inline constexpr bool AlwaysFalseV = false;
-
 void SplitString(std::string const& str, const char delim, std::vector<std::string>& out);
-std::string LowerString(std::string str);
 
 std::string ThreadName(bool DebugModeOverride = false);
 void RegisterThread(const std::string& str);

include/Env.h

@@ -23,13 +23,10 @@
 namespace Env {
 
 enum class Key {
-    MAX_CONCURRENT_CONNECTIONS,
     // provider settings
     PROVIDER_UPDATE_MESSAGE,
     PROVIDER_DISABLE_CONFIG,
-    PROVIDER_DISABLE_MP_SET,
     PROVIDER_PORT_ENV,
-    PROVIDER_IP_ENV
 };
 
 std::optional<std::string> Get(Key key);

include/LuaAPI.h

@@ -34,9 +34,8 @@ namespace MP {
     std::pair<bool, std::string> TriggerClientEventJson(int PlayerID, const std::string& EventName, const sol::table& Data);
     inline size_t GetPlayerCount() { return Engine->Server().ClientCount(); }
     std::pair<bool, std::string> DropPlayer(int ID, std::optional<std::string> MaybeReason);
-    std::pair<bool, std::string> SendChatMessage(int ID, const std::string& Message, const bool& LogChat = true);
+    std::pair<bool, std::string> SendChatMessage(int ID, const std::string& Message);
     std::pair<bool, std::string> SendNotification(int ID, const std::string& Message, const std::string& Icon, const std::string& Category);
-    std::pair<bool, std::string> ConfirmationDialog(int ID, const std::string& Title, const std::string& Body, const sol::table& buttons, const std::string& InteractionID, const bool& warning = false, const bool& reportToServer = true, const bool& reportToExtensions = true);
     std::pair<bool, std::string> RemoveVehicle(int PlayerID, int VehicleID);
     void Set(int ConfigID, sol::object NewValue);
     TLuaValue Get(int ConfigID);

include/Settings.h

@@ -79,7 +79,6 @@ struct Settings {
         General_Map,
         General_AuthKey,
         General_Private,
-        General_IP,
         General_Port,
         General_MaxCars,
         General_LogChat,

include/TConnectionLimiter.h

@@ -1,90 +0,0 @@
-// BeamMP, the BeamNG.drive multiplayer mod.
-// Copyright (C) 2026 BeamMP Ltd., BeamMP team and contributors.
-//
-// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published
-// by the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#pragma once
-
-#include <mutex>
-#include <optional>
-#include <string>
-#include <unordered_map>
-#include <utility>
-
-class TConnectionLimiter {
-public:
-    struct TStats {
-        size_t CurrentGlobal = 0;
-        size_t MaxGlobal = 0;
-        size_t ActiveIpBuckets = 0;
-        size_t CurrentMaxPerIp = 0;
-        size_t MaxPerIp = 0;
-        size_t SaturatedIpBuckets = 0;
-    };
-
-    class TGuard {
-    public:
-        TGuard() = default;
-        TGuard(TConnectionLimiter* owner, std::string ip);
-
-        TGuard(const TGuard&) = delete;
-        TGuard& operator=(const TGuard&) = delete;
-
-        ~TGuard() { Release(); }
-
-        // not threadsafe
-        TGuard(TGuard&& other) noexcept { *this = std::move(other); }
-        // not threadsafe
-        TGuard& operator=(TGuard&& other) noexcept;
-
-    private:
-        friend class TConnectionLimiter;
-
-        // not threadsafe
-        void Release();
-
-        TConnectionLimiter* mOwner { nullptr };
-        std::string mIp;
-    };
-
-    TConnectionLimiter(size_t maxPerIp, size_t maxGlobal);
-
-    [[nodiscard]] std::optional<TGuard> TryAcquire(const std::string& ip);
-    [[nodiscard]] TStats GetStats();
-
-private:
-    void Release(const std::string& ip) {
-        std::unique_lock Lock { mMutex };
-        auto It = mPerIp.find(ip);
-        if (It != mPerIp.end()) {
-            // this guard exists to avoid underflow in case something goes wrong and this gets called too many times
-            if (It->second > 0)
-                --It->second;
-            if (It->second == 0)
-                mPerIp.erase(It);
-        }
-        // this guard exists to avoid underflow in case something goes wrong and this gets called too many times
-        if (mGlobal > 0)
-            --mGlobal;
-    }
-
-    const size_t mMaxPerIp;
-    const size_t mMaxGlobal;
-
-    std::mutex mMutex { };
-    std::unordered_map<std::string, size_t> mPerIp { };
-    size_t mGlobal = 0;
-};

include/TConsole.h

@@ -59,9 +59,6 @@ private:
     void Command_Settings(const std::string& cmd, const std::vector<std::string>& args);
     void Command_Clear(const std::string&, const std::vector<std::string>& args);
     void Command_Version(const std::string& cmd, const std::vector<std::string>& args);
-    void Command_ProtectMod(const std::string& cmd, const std::vector<std::string>& args);
-    void Command_ReloadMods(const std::string& cmd, const std::vector<std::string>& args);
-    void Command_NetTest(const std::string& cmd, const std::vector<std::string>& args);
 
     void Command_Say(const std::string& FullCommand);
     bool EnsureArgsCount(const std::vector<std::string>& args, size_t n);
@@ -80,9 +77,6 @@ private:
         { "clear", [this](const auto& a, const auto& b) { Command_Clear(a, b); } },
         { "say", [this](const auto&, const auto&) { Command_Say(""); } }, // shouldn't actually be called
         { "version", [this](const auto& a, const auto& b) { Command_Version(a, b); } },
-        { "protectmod", [this](const auto& a, const auto& b) { Command_ProtectMod(a, b); } },
-        { "reloadmods", [this](const auto& a, const auto& b) { Command_ReloadMods(a, b); } },
-        { "nettest", [this](const auto& a, const auto& b) { Command_NetTest(a, b); } },
     };
 
     std::unique_ptr<Commandline> mCommandline { nullptr };

include/TIoPollThread.h

@@ -1,36 +0,0 @@
-// BeamMP, the BeamNG.drive multiplayer mod.
-// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
-//
-// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published
-// by the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#pragma once
-
-#include <boost/asio/io_context.hpp>
-#include <boost/asio/executor_work_guard.hpp>
-#include <thread>
-
-class TIoPollThread {
-public:
-    TIoPollThread();
-    ~TIoPollThread();
-
-    boost::asio::io_context& IoCtx() noexcept { return mIoCtx; }
-
-private:
-    boost::asio::io_context mIoCtx;
-    boost::asio::executor_work_guard<boost::asio::io_context::executor_type> mWorkGuard;
-    std::jthread mThread;
-};

include/TLuaEngine.h

@@ -19,12 +19,13 @@
 #pragma once
 
 #include "Profiling.h"
-#include "TLuaResult.h"
 #include "TNetwork.h"
 #include "TServer.h"
+#include <any>
 #include <chrono>
 #include <condition_variable>
 #include <filesystem>
+#include <initializer_list>
 #include <list>
 #include <lua.hpp>
 #include <memory>
@@ -33,8 +34,6 @@
 #include <queue>
 #include <random>
 #include <set>
-#include <sol/forward.hpp>
-#include <sol/protected_function_result.hpp>
 #include <toml.hpp>
 #include <unordered_map>
 #include <vector>
@@ -59,10 +58,36 @@ namespace fs = std::filesystem;
 /**
  * std::variant means, that TLuaArgTypes may be one of the Types listed as template args
  */
-using TLuaValue = std::variant<std::monostate, std::string, int, JsonString, bool, std::unordered_map<std::string, std::string>, float>;
+using TLuaValue = std::variant<std::string, int, JsonString, bool, std::unordered_map<std::string, std::string>, float>;
+enum TLuaType {
+    String = 0,
+    Int = 1,
+    Json = 2,
+    Bool = 3,
+    StringStringMap = 4,
+    Float = 5,
+};
 
 class TLuaPlugin;
 
+struct TLuaResult {
+    bool Ready;
+    bool Error;
+    std::string ErrorMessage;
+    sol::object Result { sol::lua_nil };
+    TLuaStateId StateId;
+    std::string Function;
+    std::shared_ptr<std::mutex> ReadyMutex {
+        std::make_shared<std::mutex>()
+    };
+    std::shared_ptr<std::condition_variable> ReadyCondition {
+        std::make_shared<std::condition_variable>()
+    };
+
+    void MarkAsReady();
+    void WaitUntilReady();
+};
+
 struct TLuaPluginConfig {
     static inline const std::string FileName = "PluginConfig.toml";
     TLuaStateId StateId;
@@ -141,7 +166,7 @@ public:
         const std::optional<std::chrono::high_resolution_clock::duration>& Max = std::nullopt);
     void ReportErrors(const std::vector<std::shared_ptr<TLuaResult>>& Results);
     bool HasState(TLuaStateId StateId);
-    [[nodiscard]] std::shared_ptr<TLuaVoidResult> EnqueueScript(TLuaStateId StateID, const TLuaChunk& Script);
+    [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueScript(TLuaStateId StateID, const TLuaChunk& Script);
     [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueFunctionCall(TLuaStateId StateID, const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName);
     void EnsureStateExists(TLuaStateId StateId, const std::string& Name, bool DontCallOnInit = false);
     void RegisterEvent(const std::string& EventName, TLuaStateId StateId, const std::string& FunctionName);
@@ -167,7 +192,9 @@ public:
         for (const auto& Event : mLuaEvents.at(EventName)) {
             for (const auto& Function : Event.second) {
                 if (Event.first != IgnoreId) {
-                    Results.push_back(EnqueueFunctionCall(Event.first, Function, Arguments, EventName));
+                    auto Result = EnqueueFunctionCall(Event.first, Function, Arguments, EventName);
+                    Results.push_back(Result);
+                    AddResultToCheck(Result);
                 }
             }
         }
@@ -202,9 +229,9 @@ public:
 
     // Debugging functions (slow)
     std::unordered_map<std::string /*event name */, std::vector<std::string> /* handlers */> Debug_GetEventsForState(TLuaStateId StateId);
-    std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> Debug_GetStateExecuteQueueForState(TLuaStateId StateId);
+    std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaResult>>> Debug_GetStateExecuteQueueForState(TLuaStateId StateId);
     std::vector<QueuedFunction> Debug_GetStateFunctionQueueForState(TLuaStateId StateId);
-    std::vector<TLuaResult::DetachedSnapshot> Debug_GetResultsToCheckForState(TLuaStateId StateId);
+    std::vector<TLuaResult> Debug_GetResultsToCheckForState(TLuaStateId StateId);
 
 private:
     void CollectAndInitPlugins();
@@ -217,7 +244,7 @@ private:
         StateThreadData(const std::string& Name, TLuaStateId StateId, TLuaEngine& Engine);
         StateThreadData(const StateThreadData&) = delete;
         virtual ~StateThreadData() noexcept { beammp_debug("\"" + mStateId + "\" destroyed"); }
-        [[nodiscard]] std::shared_ptr<TLuaVoidResult> EnqueueScript(const TLuaChunk& Script);
+        [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueScript(const TLuaChunk& Script);
         [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueFunctionCall(const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName);
         [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueFunctionCallFromCustomEvent(const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName, CallStrategy Strategy);
         void RegisterEvent(const std::string& EventName, const std::string& FunctionName);
@@ -229,7 +256,7 @@ private:
         std::vector<std::string> GetStateTableKeys(const std::vector<std::string>& keys);
 
         // Debug functions, slow
-        std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> Debug_GetStateExecuteQueue();
+        std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaResult>>> Debug_GetStateExecuteQueue();
         std::vector<TLuaEngine::QueuedFunction> Debug_GetStateFunctionQueue();
 
     private:
@@ -254,7 +281,7 @@ private:
         TLuaStateId mStateId;
         lua_State* mState;
         std::thread mThread;
-        std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> mStateExecuteQueue;
+        std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaResult>>> mStateExecuteQueue;
         std::recursive_mutex mStateExecuteQueueMutex;
         std::vector<QueuedFunction> mStateFunctionQueue;
         std::mutex mStateFunctionQueueMutex;

include/TLuaResult.h

@@ -1,146 +0,0 @@
-// BeamMP, the BeamNG.drive multiplayer mod.
-// Copyright (C) 2026 BeamMP Ltd., BeamMP team and contributors.
-//
-// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published
-// by the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#pragma once
-
-#include "Common.h"
-#include <condition_variable>
-#include <string>
-#include <memory>
-#include <sol/sol.hpp>
-
-using TLuaStateId = std::string;
-
-struct TDetachedLuaValue {
-    using Ptr = std::shared_ptr<TDetachedLuaValue>;
-    using Array = std::vector<TDetachedLuaValue>;
-    // This weird Ptr indirection is needed because some implementations of libstc++,
-    // like the GCC 11 one shipped with ubuntu 22.04, need to know the size of the second
-    // member of the pairs that make up the elements of such a map. It's fine in vector.
-    using Object = std::unordered_map<std::string, TDetachedLuaValue::Ptr>;
-    std::variant<std::monostate, bool, double, int, std::string, Array, Object> V;
-};
-std::ostream& operator<<(std::ostream& os, const TDetachedLuaValue& value);
-
-/// Result for operations that stay within one Lua state (e.g. script loads).
-/// This type intentionally does not store any Lua references or serialized Lua values.
-struct TLuaVoidResult {
-    struct Snapshot {
-        bool Error;
-        bool Ready;
-        std::string ErrorMessage;
-        TLuaStateId StateId;
-    };
-
-    explicit TLuaVoidResult(TLuaStateId StateId)
-        : mStateId(std::move(StateId)) {}
-
-    /// Marks this result as success & sets it as ready, waking all waiting threads.
-    void MarkReadySuccess();
-    /// Marks this result as erroneous & sets it as ready, waking all waiting threads.
-    void MarkReadyError(sol::protected_function_result Res);
-    /// Marks this result as erroneous & sets it as ready, waking all waiting threads.
-    void MarkReadyError(std::string Res);
-    /// Wait (suspend) until this result is ready.
-    void WaitUntilReady();
-    bool IsReady() const;
-    bool IsError() const;
-    Snapshot GetSnapshot() const;
-
-private:
-    mutable std::mutex mMutex {};
-    bool mReady { false };
-    bool mError { false };
-    std::string mErrorMessage;
-    TLuaStateId mStateId;
-    std::condition_variable mReadyCondition {};
-
-    void SetErrorMessageFromResult(sol::protected_function_result& Res) {
-        if (Res.valid()) {
-            beammp_lua_errorf("Error was not an error");
-        }
-        if (Res.get_type() == sol::type::string) {
-            mErrorMessage = Res.get<sol::error>().what();
-        } else {
-            mErrorMessage = "(unknown error; error object is not inspectable)";
-        }
-    }
-
-    void MarkAsReady();
-};
-
-struct TLuaResult {
-    struct DetachedSnapshot {
-        bool Error;
-        bool Ready;
-        std::string ErrorMessage;
-        /// Serialized Lua result. Has no reference to the Lua state, and is safe to use
-        /// from any thread that acquires it.
-        TDetachedLuaValue Result;
-        TLuaStateId StateId;
-        std::string Function;
-    };
-
-
-    TLuaResult(TLuaStateId StateId, std::string FunctionName) : mStateId(StateId), mFunction(std::move(FunctionName)) {}
-
-    /// Marks this result as success & sets it as ready, waking all threads waiting on it.
-    void MarkReadySuccess(sol::object Res);
-    /// Marks this result as successful and ready without serializing a Lua value.
-    void MarkReadySuccessNoResult();
-    /// Marks this result as erroneous & sets it as ready, waking all threads waiting on it.
-    void MarkReadyError(sol::protected_function_result Res);
-    /// Marks this result as erroneous & sets it as ready, waking all threads waiting on it.
-    void MarkReadyError(std::string Res);
-    /// Wait (suspend) until this result is ready. Use `GetDetachedSnapshot` to get the result.
-    void WaitUntilReady();
-    bool IsReady() const;
-    bool IsError() const;
-    TLuaStateId OwnerState() const;
-    void SetOwnerState(TLuaStateId StateId);
-
-    /// Returns a snapshot with, if not an error, a serialized version of the result
-    /// object. This never stores or returns raw Lua references and is safe to use
-    /// across threads.
-    DetachedSnapshot GetDetachedSnapshot() const;
-
-private:
-    mutable std::mutex mMutex {};
-    bool mReady { false };
-    bool mError { false };
-    std::string mErrorMessage;
-    TDetachedLuaValue mDetachedResult;
-    TLuaStateId mStateId;
-    std::string mFunction;
-    std::condition_variable mReadyCondition {};
-
-    TDetachedLuaValue Freeze(const sol::object& o, int depth = 0);
-
-    void SetErrorMessageFromResult(sol::protected_function_result& Res) {
-        if (Res.valid()) {
-            beammp_lua_errorf("Error was not an error");
-        }
-        if (Res.get_type() == sol::type::string) {
-            mErrorMessage = Res.get<sol::error>().what();
-        } else {
-            mErrorMessage = "(unknown error; error object is not inspectable)";
-        }
-    }
-
-    void MarkAsReady();
-};

include/TNetwork.h

@@ -20,9 +20,9 @@
 
 #include "BoostAliases.h"
 #include "Compat.h"
-#include "TConnectionLimiter.h"
 #include "TResourceManager.h"
 #include "TServer.h"
+#include <boost/asio/io_context.hpp>
 #include <boost/asio/ip/udp.hpp>
 
 struct TConnection;
@@ -34,23 +34,16 @@ public:
     [[nodiscard]] bool TCPSend(TClient& c, const std::vector<uint8_t>& Data, bool IsSync = false);
     [[nodiscard]] bool SendLarge(TClient& c, std::vector<uint8_t> Data, bool isSync = false);
     [[nodiscard]] bool Respond(TClient& c, const std::vector<uint8_t>& MSG, bool Rel, bool isSync = false);
-    std::shared_ptr<TClient> CreateClient(boost::asio::ip::tcp::socket&& TCPSock);
+    std::shared_ptr<TClient> CreateClient(ip::tcp::socket&& TCPSock);
-    std::vector<uint8_t> TCPRcv(TClient& c, bool WithTimeout = false);
+    std::vector<uint8_t> TCPRcv(TClient& c);
     void ClientKick(TClient& c, const std::string& R);
-    void DisconnectClient(const std::weak_ptr<TClient>& c, const std::string& R);
-    void DisconnectClient(TClient& c, const std::string& R);
     [[nodiscard]] bool SyncClient(const std::weak_ptr<TClient>& c);
-    void Identify(TConnection&& client, TConnectionLimiter::TGuard&&);
+    void Identify(TConnection&& client);
     std::shared_ptr<TClient> Authentication(TConnection&& ClientConnection);
     void SyncResources(TClient& c);
     [[nodiscard]] bool UDPSend(TClient& Client, std::vector<uint8_t> Data);
     void SendToAll(TClient* c, const std::vector<uint8_t>& Data, bool Self, bool Rel);
     void UpdatePlayer(TClient& Client);
-    boost::system::error_code ReadWithTimeout(boost::asio::ip::tcp::socket& Socket, void* Buf, size_t Len, std::chrono::steady_clock::duration Timeout);
-    boost::system::error_code ReadWithTimeout(TConnection& Connection, void* Buf, size_t Len, std::chrono::steady_clock::duration Timeout);
-    [[nodiscard]] TConnectionLimiter::TStats GetConnectionLimiterStats() { return mConnectionLimiter.GetStats(); }
-
-    TResourceManager& ResourceManager() const { return mResourceManager; }
 
 private:
     void UDPServerMain();
@@ -58,14 +51,13 @@ private:
 
     TServer& mServer;
     TPPSMonitor& mPPSMonitor;
-    boost::asio::ip::udp::socket mUDPSock;
+    ip::udp::socket mUDPSock;
     TResourceManager& mResourceManager;
     std::thread mUDPThread;
     std::thread mTCPThread;
     std::mutex mOpenIDMutex;
-    TConnectionLimiter mConnectionLimiter;
 
-    std::vector<uint8_t> UDPRcvFromClient(boost::asio::ip::udp::endpoint& ClientEndpoint);
+    std::vector<uint8_t> UDPRcvFromClient(ip::udp::endpoint& ClientEndpoint);
     void OnConnect(const std::weak_ptr<TClient>& c);
     void TCPClient(const std::weak_ptr<TClient>& c);
     void Looper(const std::weak_ptr<TClient>& c);
@@ -73,9 +65,9 @@ private:
     void OnDisconnect(const std::weak_ptr<TClient>& ClientPtr);
     void Parse(TClient& c, const std::vector<uint8_t>& Packet);
     void SendFile(TClient& c, const std::string& Name);
-    static bool TCPSendRaw(TClient& C, boost::asio::ip::tcp::socket& socket, const uint8_t* Data, size_t Size);
+    static bool TCPSendRaw(TClient& C, ip::tcp::socket& socket, const uint8_t* Data, size_t Size);
-    void SendFileToClient(TClient& c, size_t Size, const std::string& Name);
+    static void SendFileToClient(TClient& c, size_t Size, const std::string& Name);
-    static const uint8_t* SendSplit(TClient& c, boost::asio::ip::tcp::socket& Socket, const uint8_t* DataPtr, size_t Size);
+    static const uint8_t* SendSplit(TClient& c, ip::tcp::socket& Socket, const uint8_t* DataPtr, size_t Size);
 };
 
 std::string HashPassword(const std::string& str);

include/TResourceManager.h

@@ -30,10 +30,10 @@ public:
     [[nodiscard]] std::string TrimmedList() const { return mTrimmedList; }
     [[nodiscard]] std::string FileSizes() const { return mFileSizes; }
     [[nodiscard]] int ModsLoaded() const { return mModsLoaded; }
-    [[nodiscard]] nlohmann::json GetMods() const { return mMods; }
+
+    [[nodiscard]] std::string NewFileList() const;
 
     void RefreshFiles();
-    void SetProtected(const std::string& ModName, bool Protected);
 
 private:
     size_t mMaxModSize = 0;

include/TServer.h

@@ -20,7 +20,6 @@
 
 #include "IThreaded.h"
 #include "RWMutex.h"
-#include "TIoPollThread.h"
 #include "TScopedTimer.h"
 #include <functional>
 #include <memory>
@@ -45,16 +44,17 @@ public:
     void ForEachClient(const std::function<bool(std::weak_ptr<TClient>)>& Fn);
     size_t ClientCount() const;
 
-    void GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uint8_t>&& Packet, TPPSMonitor& PPSMonitor, TNetwork& Network, bool udp);
+    void GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uint8_t>&& Packet, TPPSMonitor& PPSMonitor, TNetwork& Network);
     static void HandleEvent(TClient& c, const std::string& Data);
     RWMutex& GetClientMutex() const { return mClientsMutex; }
 
     const TScopedTimer UptimeTimer;
 
-    io_context& IoCtx() { return mIoCtxPoller.IoCtx(); }
+    // asio io context
+    io_context& IoCtx() { return mIoCtx; }
 
 private:
-    TIoPollThread mIoCtxPoller;
+    io_context mIoCtx {};
     TClientSet mClients;
     mutable RWMutex mClientsMutex;
     static void ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Network);

include/VehicleData.h

@@ -18,12 +18,11 @@
 
 #pragma once
 
-#include <nlohmann/json.hpp>
 #include <string>
 
 class TVehicleData final {
 public:
-    TVehicleData(int ID, nlohmann::json Data);
+    TVehicleData(int ID, std::string Data);
     ~TVehicleData();
     // We cannot delete this, since vector needs to be able to copy when it resizes.
     // Deleting this causes some wacky template errors which are hard to decipher,
@@ -33,16 +32,14 @@ public:
     [[nodiscard]] bool IsInvalid() const { return mID == -1; }
     [[nodiscard]] int ID() const { return mID; }
 
-    [[nodiscard]] nlohmann::json Data() const { return mData; }
+    [[nodiscard]] std::string Data() const { return mData; }
-    [[nodiscard]] std::string DataAsPacket(const std::string& Role, const std::string& Name, int ID) const;
+    void SetData(const std::string& Data) { mData = Data; }
-
-    void SetData(const nlohmann::json& Data) { mData = Data; }
 
     bool operator==(const TVehicleData& v) const { return mID == v.mID; }
 
 private:
     int mID { -1 };
-    nlohmann::json mData;
+    std::string mData;
 };
 
 // TODO: unused now, remove?

scripts/debian-11/2-configure.sh

@@ -4,4 +4,4 @@ set -ex
 
 ./vcpkg/bootstrap-vcpkg.sh
 
-cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections" -DBeamMP-Server_ENABLE_LTO=ON

scripts/debian-12/2-configure.sh

@@ -4,4 +4,4 @@ set -ex
 
 ./vcpkg/bootstrap-vcpkg.sh
 
-cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections" -DBeamMP-Server_ENABLE_LTO=ON

scripts/debian-13/1-install-deps.sh

@@ -1,7 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-apt-get update -y
-
-apt-get install -y liblua5.3-0 liblua5.3-dev curl zip unzip tar cmake make git g++ ninja-build

scripts/debian-13/1.5-git-safe.sh

@@ -1,7 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-git config --global --add safe.directory $(pwd)
-git config --global --add safe.directory $(pwd)/vcpkg
-git config --global --add safe.directory $(pwd)/deps/commandline

scripts/debian-13/2-configure.sh

@@ -1,7 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-./vcpkg/bootstrap-vcpkg.sh
-
-cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON

scripts/debian-13/3-build-tests.sh

@@ -1,5 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-cmake --build bin --parallel -t BeamMP-Server-tests

scripts/debian-13/3-build.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-cmake --build bin --parallel -t BeamMP-Server
-
-objcopy --only-keep-debug bin/BeamMP-Server bin/BeamMP-Server.debug
-objcopy --add-gnu-debuglink bin/BeamMP-Server bin/BeamMP-Server.debug
-
-strip -s bin/BeamMP-Server

scripts/debian-13/4-install-runtime-deps.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-
-set -ex
-
-apt-get update -y
-
-apt-get install -y liblua5.3-0 curl
-

scripts/ubuntu-22.04/2-configure.sh

@@ -4,4 +4,4 @@ set -ex
 
 ./vcpkg/bootstrap-vcpkg.sh
 
-cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections" -DBeamMP-Server_ENABLE_LTO=ON

scripts/ubuntu-24.04/2-configure.sh

@@ -4,4 +4,4 @@ set -ex
 
 ./vcpkg/bootstrap-vcpkg.sh
 
-cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections" -DBeamMP-Server_ENABLE_LTO=ON

src/Client.cpp

@@ -57,7 +57,7 @@ int TClient::GetOpenCarID() const {
     return OpenID;
 }
 
-void TClient::AddNewCar(int Ident, const nlohmann::json& Data) {
+void TClient::AddNewCar(int Ident, const std::string& Data) {
     std::unique_lock lock(mVehicleDataMutex);
     mVehicleData.emplace_back(Ident, Data);
 }
@@ -76,13 +76,7 @@ std::string TClient::GetCarPositionRaw(int Ident) {
     }
 }
 
-bool TClient::Disconnect(std::string_view Reason) {
+void TClient::Disconnect(std::string_view Reason) {
-    // Do not remove this guard: concurrent close() on the same socket can crash in Asio internals.
-    EDisconnectState Expected = EDisconnectState::Connected;
-    if (!mDisconnectState.compare_exchange_strong(Expected, EDisconnectState::Disconnecting, std::memory_order_acq_rel, std::memory_order_acquire)) {
-        return false;
-    }
-
     beammp_debugf("Disconnecting client {} for reason: {}", GetID(), Reason);
     boost::system::error_code ec;
     if (mSocket.is_open()) {
@@ -90,6 +84,7 @@ bool TClient::Disconnect(std::string_view Reason) {
         if (ec) {
             beammp_debugf("Failed to shutdown client socket: {}", ec.message());
         }
+        mSocket.cancel();
         mSocket.close(ec);
         if (ec) {
             beammp_debugf("Failed to close client socket: {}", ec.message());
@@ -97,9 +92,6 @@ bool TClient::Disconnect(std::string_view Reason) {
     } else {
         beammp_debug("Socket is already closed.");
     }
-    // Terminal state: this client must not perform TCP IO after this point.
-    mDisconnectState.store(EDisconnectState::Disconnected, std::memory_order_release);
-    return true;
 }
 
 void TClient::SetCarPosition(int Ident, const std::string& Data) {
@@ -107,7 +99,7 @@ void TClient::SetCarPosition(int Ident, const std::string& Data) {
     mVehiclePosition[size_t(Ident)] = Data;
 }
 
-nlohmann::json TClient::GetCarData(int Ident) {
+std::string TClient::GetCarData(int Ident) {
     { // lock
         std::unique_lock lock(mVehicleDataMutex);
         for (auto& v : mVehicleData) {
@@ -117,10 +109,10 @@ nlohmann::json TClient::GetCarData(int Ident) {
         }
     } // unlock
     DeleteCar(Ident);
-    return nlohmann::detail::value_t::null;
+    return "";
 }
 
-void TClient::SetCarData(int Ident, const nlohmann::json& Data) {
+void TClient::SetCarData(int Ident, const std::string& Data) {
     { // lock
         std::unique_lock lock(mVehicleDataMutex);
         for (auto& v : mVehicleData) {
@@ -178,7 +170,8 @@ std::optional<std::weak_ptr<TClient>> GetClient(TServer& Server, int ID) {
     std::optional<std::weak_ptr<TClient>> MaybeClient { std::nullopt };
     Server.ForEachClient([&](std::weak_ptr<TClient> CPtr) -> bool {
         ReadLock Lock(Server.GetClientMutex());
-        if (auto C = CPtr.lock()) {
+        if (!CPtr.expired()) {
+            auto C = CPtr.lock();
             if (C->GetID() == ID) {
                 MaybeClient = CPtr;
                 return false;

src/Common.cpp

@@ -31,7 +31,6 @@
 #include <sstream>
 #include <thread>
 
-#include "TLuaResult.h"
 #include "Compat.h"
 #include "CustomAssert.h"
 #include "Http.h"
@@ -385,13 +384,6 @@ void SplitString(const std::string& str, const char delim, std::vector<std::stri
         out.push_back(str.substr(start, end - start));
     }
 }
-
-std::string LowerString(std::string str) {
-    std::ranges::transform(str, str.begin(), ::tolower);
-    return str;
-}
-
-
 static constexpr size_t STARTING_MAX_DECOMPRESSION_BUFFER_SIZE = 15 * 1024 * 1024;
 static constexpr size_t MAX_DECOMPRESSION_BUFFER_SIZE = 30 * 1024 * 1024;
 

src/Env.cpp

@@ -36,18 +36,9 @@ std::string_view Env::ToString(Env::Key key) {
     case Key::PROVIDER_DISABLE_CONFIG:
         return "BEAMMP_PROVIDER_DISABLE_CONFIG";
         break;
-    case Key::PROVIDER_DISABLE_MP_SET:
-        return "BEAMMP_PROVIDER_DISABLE_MP_SET";
-        break;
     case Key::PROVIDER_PORT_ENV:
         return "BEAMMP_PROVIDER_PORT_ENV";
         break;
-    case Key::PROVIDER_IP_ENV:
-        return "BEAMMP_PROVIDER_IP_ENV";
-        break;
-    case Key::MAX_CONCURRENT_CONNECTIONS:
-        return "BEAMMP_MAX_CONCURRENT_CONNECTIONS";
-        break;
     }
     return "";
 }

src/Http.cpp

@@ -18,12 +18,15 @@
 
 #include "Http.h"
 
+#include "Client.h"
 #include "Common.h"
 #include "CustomAssert.h"
+#include "LuaAPI.h"
 
-#include <curl/easy.h>
 #include <map>
 #include <nlohmann/json.hpp>
+#include <random>
+#include <stdexcept>
 
 using json = nlohmann::json;
 
@@ -34,107 +37,17 @@ static size_t CurlWriteCallback(void* contents, size_t size, size_t nmemb, void*
     return size * nmemb;
 }
 
-struct CurlDeleter {
-    void operator()(CURL* c) const noexcept {
-        if (c)
-            curl_easy_cleanup(c);
-    }
-};
-
-static std::mutex gCurlPoolMutex;
-static std::map<CURL*, bool> gCurlPool; // false = free, true = in use
-constexpr size_t MAX_CURL_POOL_SIZE = 128;
-
-static CURL* AcquireCurl() {
-    std::unique_lock Lock(gCurlPoolMutex);
-    for (auto& [Curl, InUse] : gCurlPool) {
-        if (!InUse) {
-            InUse = true;
-            curl_easy_reset(Curl);
-            return Curl;
-        }
-    }
-
-    // none found, if we're under the limit add one!
-    if (gCurlPool.size() >= MAX_CURL_POOL_SIZE) {
-        beammp_debugf("Ran out of curl handles for network requests, skipping this request");
-        return nullptr;
-    }
-    
-    CURL* Curl = curl_easy_init();
-    if (!Curl) {
-        // failed, ignore
-        return nullptr;
-    }
-    
-    gCurlPool[Curl] = true;
-    return Curl;
-}
-
-static void ReleaseCurl(CURL* curl) {
-    if (!curl) {
-        return;
-    }
-
-    std::unique_lock Lock(gCurlPoolMutex);
-    auto It = gCurlPool.find(curl);
-    if (It != gCurlPool.end()) {
-        It->second = false;
-    }
-}
-
-/// RAII container for curl handles to ensure correct release
-class CurlLease {
-private:
-    CURL* mHandle = nullptr;
-public:
-
-    CurlLease() : mHandle(AcquireCurl()) {}
-    ~CurlLease() {
-        ReleaseCurl(mHandle);
-    }
-    CurlLease(const CurlLease&) = delete;
-    CurlLease& operator=(const CurlLease&) = delete;
-
-    CurlLease(CurlLease&& other) noexcept
-        : mHandle(other.mHandle) {
-        other.mHandle = nullptr;
-    }
-
-    CurlLease& operator=(CurlLease&& other) noexcept {
-        if (this != &other) {
-            ReleaseCurl(mHandle);
-            mHandle = other.mHandle;
-            other.mHandle = nullptr;
-        }
-        return *this;
-    }
-
-    CURL* GetHandle() const noexcept {
-        return mHandle;
-    }
-};
-
 std::string Http::GET(const std::string& url, unsigned int* status) {
     std::string Ret;
-    CurlLease Lease{};
+    static thread_local CURL* curl = curl_easy_init();
-    CURL* curl = Lease.GetHandle();
     if (curl) {
         CURLcode res;
         char errbuf[CURL_ERROR_SIZE];
         curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
         curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, CurlWriteCallback);
-        curl_easy_setopt(curl, CURLOPT_WRITEDATA, reinterpret_cast<void*>(&Ret));
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&Ret);
-
+        curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10); // seconds
-        // ensure we dont keep connections open for long
-        curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 8L);
-        curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10L);
-        curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L);
-        curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1L);
-        curl_easy_setopt(curl, CURLOPT_MAXAGE_CONN, 60L);
-        curl_easy_setopt(curl, CURLOPT_MAXLIFETIME_CONN, 300L);
-
         curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
         curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);
         errbuf[0] = 0;
@@ -158,16 +71,15 @@ std::string Http::GET(const std::string& url, unsigned int* status) {
 
 std::string Http::POST(const std::string& url, const std::string& body, const std::string& ContentType, unsigned int* status, const std::map<std::string, std::string>& headers) {
     std::string Ret;
-    CurlLease Lease{};
+    static thread_local CURL* curl = curl_easy_init();
-    CURL* curl = Lease.GetHandle();
     if (curl) {
         CURLcode res;
         char errbuf[CURL_ERROR_SIZE];
         curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
         curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, CurlWriteCallback);
-        curl_easy_setopt(curl, CURLOPT_WRITEDATA, reinterpret_cast<void*>(&Ret));
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&Ret);
-        curl_easy_setopt(curl, CURLOPT_POST, 1L);
+        curl_easy_setopt(curl, CURLOPT_POST, 1);
         curl_easy_setopt(curl, CURLOPT_POSTFIELDS, body.c_str());
         curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, body.size());
         struct curl_slist* list = nullptr;
@@ -178,15 +90,7 @@ std::string Http::POST(const std::string& url, const std::string& body, const st
         }
 
         curl_easy_setopt(curl, CURLOPT_HTTPHEADER, list);
-
+        curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10); // seconds
-        // ensure we dont keep connections open for long
-        curl_easy_setopt(curl, CURLOPT_MAXCONNECTS, 8L);
-        curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10L);
-        curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L);
-        curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1L);
-        curl_easy_setopt(curl, CURLOPT_MAXAGE_CONN, 60L);
-        curl_easy_setopt(curl, CURLOPT_MAXLIFETIME_CONN, 300L);
-
         curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
         curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);
         errbuf[0] = 0;

src/LuaAPI.cpp

@@ -143,23 +143,17 @@ static inline std::pair<bool, std::string> InternalTriggerClientEvent(int Player
         return { true, "" };
     } else {
         auto MaybeClient = GetClient(LuaAPI::MP::Engine->Server(), PlayerID);
-        if (MaybeClient) {
+        if (!MaybeClient || MaybeClient.value().expired()) {
-            if (auto c = MaybeClient.value().lock()) {
+            beammp_lua_errorf("TriggerClientEvent invalid Player ID '{}'", PlayerID);
-                if (!c->IsSyncing() && !c->IsSynced()) {
+            return { false, "Invalid Player ID" };
-                    return { false, "Player hasn't joined yet" };
-                }
-
-                if (!LuaAPI::MP::Engine->Network().Respond(*c, StringToVector(Packet), true)) {
-                    beammp_lua_errorf("Respond failed, dropping client {}", PlayerID);
-                    LuaAPI::MP::Engine->Network().ClientKick(*c, "Disconnected after failing to receive packets");
-                    return { false, "Respond failed, dropping client" };
-                }
-                return { true, "" };
-            }
         }
-
+        auto c = MaybeClient.value().lock();
-        beammp_lua_errorf("TriggerClientEvent invalid Player ID '{}'", PlayerID);
+        if (!LuaAPI::MP::Engine->Network().Respond(*c, StringToVector(Packet), true)) {
-        return { false, "Invalid Player ID" };
+            beammp_lua_errorf("Respond failed, dropping client {}", PlayerID);
+            LuaAPI::MP::Engine->Network().ClientKick(*c, "Disconnected after failing to receive packets");
+            return { false, "Respond failed, dropping client" };
+        }
+        return { true, "" };
     }
 }
 
@@ -170,48 +164,37 @@ std::pair<bool, std::string> LuaAPI::MP::TriggerClientEvent(int PlayerID, const
 
 std::pair<bool, std::string> LuaAPI::MP::DropPlayer(int ID, std::optional<std::string> MaybeReason) {
     auto MaybeClient = GetClient(Engine->Server(), ID);
-    if (MaybeClient) {
+    if (!MaybeClient || MaybeClient.value().expired()) {
-        if (auto c = MaybeClient.value().lock()) {
+        beammp_lua_errorf("Tried to drop client with id {}, who doesn't exist", ID);
-            LuaAPI::MP::Engine->Network().ClientKick(*c, MaybeReason.value_or("No reason"));
+        return { false, "Player does not exist" };
-            return { true, "" };
-        }
     }
-
+    auto c = MaybeClient.value().lock();
-    beammp_lua_errorf("Tried to drop client with id {}, who doesn't exist", ID);
+    LuaAPI::MP::Engine->Network().ClientKick(*c, MaybeReason.value_or("No reason"));
-    return { false, "Player does not exist" };
+    return { true, "" };
 }
 
-std::pair<bool, std::string> LuaAPI::MP::SendChatMessage(int ID, const std::string& Message, const bool& LogChat) {
+std::pair<bool, std::string> LuaAPI::MP::SendChatMessage(int ID, const std::string& Message) {
     std::pair<bool, std::string> Result;
     std::string Packet = "C:Server: " + Message;
     if (ID == -1) {
-        if (LogChat) {
+        LogChatMessage("<Server> (to everyone) ", -1, Message);
-            LogChatMessage("<Server> (to everyone) ", -1, Message);
-        }
         Engine->Network().SendToAll(nullptr, StringToVector(Packet), true, true);
         Result.first = true;
     } else {
         auto MaybeClient = GetClient(Engine->Server(), ID);
-        if (MaybeClient) {
+        if (MaybeClient && !MaybeClient.value().expired()) {
-            if (auto c = MaybeClient.value().lock()) {
+            auto c = MaybeClient.value().lock();
-                if (!c->IsSynced()) {
+            if (!c->IsSynced()) {
-                    Result.first = false;
-                    Result.second = "Player still syncing data";
-                    return Result;
-                }
-                if (LogChat) {
-                    LogChatMessage("<Server> (to \"" + c->GetName() + "\")", -1, Message);
-                }
-                if (!Engine->Network().Respond(*c, StringToVector(Packet), true)) {
-                    beammp_errorf("Failed to send chat message back to sender (id {}) - did the sender disconnect?", ID);
-                    // TODO: should we return an error here?
-                }
-                Result.first = true;
-            } else {
-                beammp_lua_error("SendChatMessage invalid argument [1] invalid ID");
                 Result.first = false;
-                Result.second = "Invalid Player ID";
+                Result.second = "Player still syncing data";
+                return Result;
             }
+            LogChatMessage("<Server> (to \"" + c->GetName() + "\")", -1, Message);
+            if (!Engine->Network().Respond(*c, StringToVector(Packet), true)) {
+                beammp_errorf("Failed to send chat message back to sender (id {}) - did the sender disconnect?", ID);
+                // TODO: should we return an error here?
+            }
+            Result.first = true;
         } else {
             beammp_lua_error("SendChatMessage invalid argument [1] invalid ID");
             Result.first = false;
@@ -231,23 +214,18 @@ std::pair<bool, std::string> LuaAPI::MP::SendNotification(int ID, const std::str
     } else {
         auto MaybeClient = GetClient(Engine->Server(), ID);
         if (MaybeClient) {
-            if (auto c = MaybeClient.value().lock()) {
+            auto c = MaybeClient.value().lock();
-                if (!c->IsSynced()) {
+            if (!c->IsSynced()) {
-                    Result.first = false;
-                    Result.second = "Player is not synced yet";
-                    return Result;
-                }
-                if (!Engine->Network().Respond(*c, StringToVector(Packet), true)) {
-                    beammp_errorf("Failed to send notification to player (id {}) - did the player disconnect?", ID);
-                    Result.first = false;
-                    Result.second = "Failed to send packet";
-                }
-                Result.first = true;
-            } else {
-                beammp_lua_error("SendNotification invalid argument [1] invalid ID");
                 Result.first = false;
-                Result.second = "Invalid Player ID";
+                Result.second = "Player is not synced yet";
+                return Result;
             }
+            if (!Engine->Network().Respond(*c, StringToVector(Packet), true)) {
+                beammp_errorf("Failed to send notification to player (id {}) - did the player disconnect?", ID);
+                Result.first = false;
+                Result.second = "Failed to send packet";
+            }
+            Result.first = true;
         } else {
             beammp_lua_error("SendNotification invalid argument [1] invalid ID");
             Result.first = false;
@@ -258,77 +236,25 @@ std::pair<bool, std::string> LuaAPI::MP::SendNotification(int ID, const std::str
     return Result;
 }
 
-std::pair<bool, std::string> LuaAPI::MP::ConfirmationDialog(int ID, const std::string& Title, const std::string& Body, const sol::table& buttons, const std::string& InteractionID, const bool& warning, const bool& reportToServer, const bool& reportToExtensions) {
-    std::pair<bool, std::string> Result;
-
-    const nlohmann::json PacketBody = {
-        { "title", Title },
-        { "body", Body },
-        { "buttons", nlohmann::json::parse(JsonEncode(buttons), nullptr, false) },
-        { "interactionID", InteractionID },
-        { "class", warning ? "experimental" : "" },
-        { "reportToServer", reportToServer },
-        { "reportToExtensions", reportToExtensions }
-    };
-
-    std::string Packet = "D" + PacketBody.dump();
-    if (ID == -1) {
-        Engine->Network().SendToAll(nullptr, StringToVector(Packet), true, true);
-        Result.first = true;
-    } else {
-        auto MaybeClient = GetClient(Engine->Server(), ID);
-        if (MaybeClient) {
-            if (auto c = MaybeClient.value().lock()) {
-                if (!c->IsSynced()) {
-                    Result.first = false;
-                    Result.second = "Player is not synced yet";
-                    return Result;
-                }
-                if (!Engine->Network().Respond(*c, StringToVector(Packet), true)) {
-                    beammp_errorf("Failed to send confirmation dialog to player (id {}) - did the player disconnect?", ID);
-                    Result.first = false;
-                    Result.second = "Failed to send packet";
-                }
-                Result.first = true;
-            } else {
-                beammp_lua_error("ConfirmationDialog invalid argument [1] invalid ID");
-                Result.first = false;
-                Result.second = "Invalid Player ID";
-            }
-        } else {
-            beammp_lua_error("ConfirmationDialog invalid argument [1] invalid ID");
-            Result.first = false;
-            Result.second = "Invalid Player ID";
-        }
-        return Result;
-    }
-    return Result;
-}
-
 std::pair<bool, std::string> LuaAPI::MP::RemoveVehicle(int PID, int VID) {
     std::pair<bool, std::string> Result;
     auto MaybeClient = GetClient(Engine->Server(), PID);
-    if (MaybeClient) {
+    if (!MaybeClient || MaybeClient.value().expired()) {
-        if (auto c = MaybeClient.value().lock()) {
-            if (c->GetCarData(VID) != nlohmann::detail::value_t::null) {
-                std::string Destroy = "Od:" + std::to_string(PID) + "-" + std::to_string(VID);
-                LuaAPI::MP::Engine->ReportErrors(LuaAPI::MP::Engine->TriggerEvent("onVehicleDeleted", "", PID, VID));
-                Engine->Network().SendToAll(nullptr, StringToVector(Destroy), true, true);
-                c->DeleteCar(VID);
-                Result.first = true;
-            } else {
-                Result.first = false;
-                Result.second = "Vehicle does not exist";
-            }
-        } else {
-            beammp_lua_error("RemoveVehicle invalid Player ID");
-            Result.first = false;
-            Result.second = "Invalid Player ID";
-        }
-    } else {
         beammp_lua_error("RemoveVehicle invalid Player ID");
         Result.first = false;
         Result.second = "Invalid Player ID";
+        return Result;
+    }
+    auto c = MaybeClient.value().lock();
+    if (!c->GetCarData(VID).empty()) {
+        std::string Destroy = "Od:" + std::to_string(PID) + "-" + std::to_string(VID);
+        LuaAPI::MP::Engine->ReportErrors(LuaAPI::MP::Engine->TriggerEvent("onVehicleDeleted", "", PID, VID));
+        Engine->Network().SendToAll(nullptr, StringToVector(Destroy), true, true);
+        c->DeleteCar(VID);
+        Result.first = true;
+    } else {
+        Result.first = false;
+        Result.second = "Vehicle does not exist";
     }
     return Result;
 }
@@ -435,22 +361,20 @@ void LuaAPI::MP::Sleep(size_t Ms) {
 
 bool LuaAPI::MP::IsPlayerConnected(int ID) {
     auto MaybeClient = GetClient(Engine->Server(), ID);
-    if (MaybeClient) {
+    if (MaybeClient && !MaybeClient.value().expired()) {
-        if (auto c = MaybeClient.value().lock()) {
+        return MaybeClient.value().lock()->IsUDPConnected();
-            return c->IsUDPConnected();
+    } else {
-        }
+        return false;
     }
-    return false;
 }
 
 bool LuaAPI::MP::IsPlayerGuest(int ID) {
     auto MaybeClient = GetClient(Engine->Server(), ID);
-    if (MaybeClient) {
+    if (MaybeClient && !MaybeClient.value().expired()) {
-        if (auto c = MaybeClient.value().lock()) {
+        return MaybeClient.value().lock()->IsGuest();
-            return c->IsGuest();
+    } else {
-        }
+        return false;
     }
-    return false;
 }
 
 void LuaAPI::MP::PrintRaw(sol::variadic_args Args) {
@@ -465,16 +389,7 @@ void LuaAPI::MP::PrintRaw(sol::variadic_args Args) {
 }
 
 int LuaAPI::PanicHandler(lua_State* State) {
-    // panic path: use raw lua c api only; sol2 conversions can raise lua_error
+    beammp_lua_error("PANIC: " + sol::stack::get<std::string>(State, 1));
-    // and re-enter panic recursively.
-    const int ErrorType = lua_type(State, -1);
-    if (ErrorType == LUA_TSTRING) {
-        const char* Message = lua_tostring(State, -1);
-        beammp_lua_error(std::string("PANIC: ") + (Message ? Message : "(null)"));
-    } else {
-        const char* ErrorTypeName = lua_typename(State, ErrorType);
-        beammp_lua_error(std::string("PANIC: non-string error object (") + (ErrorTypeName ? ErrorTypeName : "unknown") + ")");
-    }
     return 0;
 }
 

src/Settings.cpp

@@ -28,7 +28,6 @@ Settings::Settings() {
         { General_Map, std::string("/levels/gridmap_v2/info.json") },
         { General_AuthKey, std::string("") },
         { General_Private, true },
-        { General_IP, "::"},
         { General_Port, 30814 },
         { General_MaxCars, 1 },
         { General_LogChat, true },
@@ -48,7 +47,6 @@ Settings::Settings() {
         { { "General", "Map" }, { General_Map, READ_WRITE } },
         { { "General", "AuthKey" }, { General_AuthKey, NO_ACCESS } },
         { { "General", "Private" }, { General_Private, READ_ONLY } },
-        { { "General", "IP" }, { General_IP, READ_ONLY } },
         { { "General", "Port" }, { General_Port, READ_ONLY } },
         { { "General", "MaxCars" }, { General_MaxCars, READ_WRITE } },
         { { "General", "LogChat" }, { General_LogChat, READ_ONLY } },

src/TConfig.cpp

@@ -34,8 +34,6 @@ static constexpr std::string_view StrDebug = "Debug";
 static constexpr std::string_view EnvStrDebug = "BEAMMP_DEBUG";
 static constexpr std::string_view StrPrivate = "Private";
 static constexpr std::string_view EnvStrPrivate = "BEAMMP_PRIVATE";
-static constexpr std::string_view StrIP = "IP";
-static constexpr std::string_view EnvStrIP = "BEAMMP_IP";
 static constexpr std::string_view StrPort = "Port";
 static constexpr std::string_view EnvStrPort = "BEAMMP_PORT";
 static constexpr std::string_view StrMaxCars = "MaxCars";
@@ -140,8 +138,6 @@ void TConfig::FlushToFile() {
     data["General"][StrInformationPacket.data()] = Application::Settings.getAsBool(Settings::Key::General_InformationPacket);
     data["General"][StrAllowGuests.data()] = Application::Settings.getAsBool(Settings::Key::General_AllowGuests);
     SetComment(data["General"][StrAllowGuests.data()].comments(), " Whether to allow guests");
-    data["General"][StrIP.data()] = Application::Settings.getAsString(Settings::Key::General_IP);
-    SetComment(data["General"][StrIP.data()].comments(), " The IP address to bind the server to, this is NOT related to your public IP. Can be used if your machine has multiple network interfaces");
     data["General"][StrPort.data()] = Application::Settings.getAsInt(Settings::Key::General_Port);
     data["General"][StrName.data()] = Application::Settings.getAsString(Settings::Key::General_Name);
     SetComment(data["General"][StrTags.data()].comments(), " Add custom identifying tags to your server to make it easier to find. Format should be TagA,TagB,TagC. Note the comma seperation.");
@@ -258,11 +254,6 @@ void TConfig::ParseFromFile(std::string_view name) {
         } else {
             TryReadValue(data, "General", StrPort, EnvStrPort, Settings::Key::General_Port);
         }
-        if (Env::Get(Env::Key::PROVIDER_IP_ENV).has_value()) {
-            TryReadValue(data, "General", StrIP, Env::Get(Env::Key::PROVIDER_IP_ENV).value(), Settings::Key::General_IP);
-        } else {
-            TryReadValue(data, "General", StrIP, EnvStrIP, Settings::Key::General_IP);
-        }
         TryReadValue(data, "General", StrMaxCars, EnvStrMaxCars, Settings::Key::General_MaxCars);
         TryReadValue(data, "General", StrMaxPlayers, EnvStrMaxPlayers, Settings::Key::General_MaxPlayers);
         TryReadValue(data, "General", StrMap, EnvStrMap, Settings::Key::General_Map);
@@ -313,7 +304,6 @@ void TConfig::PrintDebug() {
     beammp_debug(std::string(StrPrivate) + ": " + std::string(Application::Settings.getAsBool(Settings::Key::General_Private) ? "true" : "false"));
     beammp_debug(std::string(StrInformationPacket) + ": " + std::string(Application::Settings.getAsBool(Settings::Key::General_InformationPacket) ? "true" : "false"));
     beammp_debug(std::string(StrPort) + ": " + std::to_string(Application::Settings.getAsInt(Settings::Key::General_Port)));
-    beammp_debug(std::string(StrIP) + ": \"" + Application::Settings.getAsString(Settings::Key::General_IP) + "\"");
     beammp_debug(std::string(StrMaxCars) + ": " + std::to_string(Application::Settings.getAsInt(Settings::Key::General_MaxCars)));
     beammp_debug(std::string(StrMaxPlayers) + ": " + std::to_string(Application::Settings.getAsInt(Settings::Key::General_MaxPlayers)));
     beammp_debug(std::string(StrMap) + ": \"" + Application::Settings.getAsString(Settings::Key::General_Map) + "\"");

src/TConnectionLimiter.cpp

@@ -1,96 +0,0 @@
-// BeamMP, the BeamNG.drive multiplayer mod.
-// Copyright (C) 2026 BeamMP Ltd., BeamMP team and contributors.
-//
-// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published
-// by the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#include "TConnectionLimiter.h"
-#include <mutex>
-#include <optional>
-#include "Common.h"
-
-TConnectionLimiter::TConnectionLimiter(size_t maxPerIp, size_t maxGlobal)
-    : mMaxPerIp(maxPerIp)
-    , mMaxGlobal(maxGlobal) {
-    if (maxPerIp == 0) {
-        beammp_errorf("Max connections count per IP is set to zero; the server would reject ALL connections");
-        throw std::runtime_error("Invalid maximum connections per IP setting");
-    }
-    if (maxGlobal == 0) {
-        beammp_errorf("Max connection count is set to zero; the server would reject ALL connections");
-        throw std::runtime_error("Invalid maximum connections setting");
-    }
-}
-
-std::optional<TConnectionLimiter::TGuard> TConnectionLimiter::TryAcquire(const std::string& ip) {
-    std::unique_lock Lock { mMutex };
-    if (mGlobal >= mMaxGlobal) return std::nullopt;
-    // `It` is the inserted element (so if insertion worked, its 0), or its the element that
-    // was already there, in which case we must check the ip connection limit
-    auto [It, _] = mPerIp.try_emplace(ip, 0);
-    if (It->second >= mMaxPerIp) {
-        return std::nullopt;
-    }
-    // now increment the counter finally
-    ++It->second;
-    ++mGlobal;
-    // RAII guard will drop the count once destructed
-    return TGuard(this, ip);
-}
-
-TConnectionLimiter::TStats TConnectionLimiter::GetStats() {
-    std::unique_lock Lock { mMutex };
-    TStats Stats;
-    Stats.CurrentGlobal = mGlobal;
-    Stats.MaxGlobal = mMaxGlobal;
-    Stats.ActiveIpBuckets = mPerIp.size();
-    Stats.MaxPerIp = mMaxPerIp;
-    for (const auto& [_, Count] : mPerIp) {
-        if (Count > Stats.CurrentMaxPerIp) {
-            Stats.CurrentMaxPerIp = Count;
-        }
-        if (Count >= mMaxPerIp) {
-            ++Stats.SaturatedIpBuckets;
-        }
-    }
-    return Stats;
-}
-
-TConnectionLimiter::TGuard::TGuard(TConnectionLimiter* owner, std::string ip)
-    : mOwner(owner)
-    , mIp(std::move(ip)) {
-    beammp_debugf("Acquired connection guard for {}", mIp);
-}
-
-TConnectionLimiter::TGuard& TConnectionLimiter::TGuard::operator=(TGuard&& other) noexcept {
-    // identity check
-    if (this != &other) {
-        Release();
-        mOwner = other.mOwner;
-        mIp = std::move(other.mIp);
-        other.mOwner = nullptr;
-        // setting this so its obvious when this happens, instead of being UB or empty string
-        other.mIp = "<moved-from>";
-    }
-    return *this;
-}
-
-void TConnectionLimiter::TGuard::Release() {
-    if (mOwner) {
-        mOwner->Release(mIp);
-        mOwner = nullptr;
-        beammp_debugf("Released connection guard for {}", mIp);
-    }
-}

src/TConsole.cpp

@@ -22,7 +22,6 @@
 
 #include "Client.h"
 #include "CustomAssert.h"
-#include "Http.h"
 #include "LuaAPI.h"
 #include "TLuaEngine.h"
 
@@ -160,7 +159,7 @@ void TConsole::ChangeToRegularConsole() {
 }
 
 bool TConsole::EnsureArgsCount(const std::vector<std::string>& args, size_t n) {
-    if (n == 0 && !args.empty()) {
+    if (n == 0 && args.size() != 0) {
         Application::Console().WriteRaw("This command expects no arguments.");
         return false;
     } else if (args.size() != n) {
@@ -198,7 +197,7 @@ void TConsole::Command_Lua(const std::string&, const std::vector<std::string>& a
         } else {
             Application::Console().WriteRaw("Lua state '" + NewStateId + "' is not a known state. Didn't switch to Lua.");
         }
-    } else if (args.empty()) {
+    } else if (args.size() == 0) {
         ChangeToLuaConsole(mDefaultStateId);
     }
 }
@@ -209,18 +208,16 @@ void TConsole::Command_Help(const std::string&, const std::vector<std::string>&
     }
     static constexpr const char* sHelpString = R"(
     Commands:
-        help                       displays this help
+        help                    displays this help
-        exit                       shuts down the server
+        exit                    shuts down the server
-        kick <name> [reason]       kicks specified player with an optional reason
+        kick <name> [reason]    kicks specified player with an optional reason
-        list                       lists all players and info about them
+        list                    lists all players and info about them
-        say <message>              sends the message to all players in chat
+        say <message>           sends the message to all players in chat
-        lua [state id]             switches to lua, optionally into a specific state id's lua
+        lua [state id]          switches to lua, optionally into a specific state id's lua
-        settings [command]         sets or gets settings for the server, run `settings help` for more info
+        settings [command]      sets or gets settings for the server, run `settings help` for more info
-        status                     how the server is doing and what it's up to
+        status                  how the server is doing and what it's up to
-        clear                      clears the console window
+        clear                   clears the console window
-        version                    displays the server version
+        version                 displays the server version)";
-        protectmod <name> <value>  sets whether a mod is protected, value can be true or false
-        reloadmods                 reloads all mods from the Resources Client folder)";
     Application::Console().WriteRaw("BeamMP-Server Console: " + std::string(sHelpString));
 }
 
@@ -265,55 +262,6 @@ void TConsole::Command_Version(const std::string& cmd, const std::vector<std::st
     std::string openssl_version = fmt::format("OpenSSL:  v{}.{}.{}", OPENSSL_VERSION_MAJOR, OPENSSL_VERSION_MINOR, OPENSSL_VERSION_PATCH);
     Application::Console().WriteRaw(openssl_version);
 }
-void TConsole::Command_ProtectMod(const std::string& cmd, const std::vector<std::string>& args) {
-    if (!EnsureArgsCount(args, 2)) {
-        return;
-    }
-
-    const auto& ModName = args.at(0);
-    const auto& Protect = args.at(1);
-
-    for (auto mod : mLuaEngine->Network().ResourceManager().GetMods()) {
-        if (mod["file_name"].get<std::string>() == ModName) {
-            mLuaEngine->Network().ResourceManager().SetProtected(ModName, Protect == "true");
-            Application::Console().WriteRaw("Mod " + ModName + " is now " + (Protect == "true" ? "protected" : "unprotected"));
-            return;
-        }
-    }
-
-    Application::Console().WriteRaw("Mod " + ModName + " not found.");
-}
-void TConsole::Command_ReloadMods(const std::string& cmd, const std::vector<std::string>& args) {
-    if (!EnsureArgsCount(args, 0)) {
-        return;
-    }
-
-    mLuaEngine->Network().ResourceManager().RefreshFiles();
-    Application::Console().WriteRaw("Mods reloaded.");
-}
-
-void TConsole::Command_NetTest(const std::string& cmd, const std::vector<std::string>& args) {
-    unsigned int status = 0;
-
-    std::string T = Http::GET(
-        Application::GetServerCheckUrl() + "/api/v2/beammp/" + std::to_string(Application::Settings.getAsInt(Settings::Key::General_Port)), &status);
-
-    beammp_debugf("Status and response from Server Check API: {0}, {1}", status, T);
-
-    auto Doc = nlohmann::json::parse(T, nullptr, false);
-
-    if (Doc.is_discarded() || !Doc.is_object()) {
-        beammp_warn("Failed to parse Server Check API response, however the server will most likely still work correctly.");
-    } else {
-        std::string status = Doc["status"];
-        std::string details = "Response from Server Check API: " + std::string(Doc["details"]);
-        if (status == "ok") {
-            beammp_info(details);
-        } else {
-            beammp_warn(details);
-        }
-    }
-}
 
 void TConsole::Command_Kick(const std::string&, const std::vector<std::string>& args) {
     if (!EnsureArgsCount(args, 1, size_t(-1))) {
@@ -333,9 +281,10 @@ void TConsole::Command_Kick(const std::string&, const std::vector<std::string>&
         return StringStartsWith(Name1, Name2) || StringStartsWith(Name2, Name1);
     };
     mLuaEngine->Server().ForEachClient([&](std::weak_ptr<TClient> Client) -> bool {
-        if (auto Locked = Client.lock()) {
+        if (!Client.expired()) {
-            if (NameCompare(Locked->GetName(), Name)) {
+            auto locked = Client.lock();
-                mLuaEngine->Network().ClientKick(*Locked, Reason);
+            if (NameCompare(locked->GetName(), Name)) {
+                mLuaEngine->Network().ClientKick(*locked, Reason);
                 Kicked = true;
                 return false;
             }
@@ -354,7 +303,7 @@ std::tuple<std::string, std::vector<std::string>> TConsole::ParseCommand(const s
     // It correctly splits arguments, including respecting single and double quotes, as well as backticks
     auto End_i = CommandWithArgs.find_first_of(' ');
     std::string Command = CommandWithArgs.substr(0, End_i);
-    std::string ArgsStr { };
+    std::string ArgsStr {};
     if (End_i != std::string::npos) {
         ArgsStr = CommandWithArgs.substr(End_i);
     }
@@ -421,7 +370,7 @@ void TConsole::Command_Settings(const std::string&, const std::vector<std::strin
         settings set <category> <setting> <value>   sets specified setting to value
         )";
 
-    if (args.empty()) {
+    if (args.size() == 0) {
         beammp_errorf("No arguments specified for command 'settings'!");
         Application::Console().WriteRaw("BeamMP-Server Console: " + std::string(sHelpString));
         return;
@@ -564,10 +513,11 @@ void TConsole::Command_List(const std::string&, const std::vector<std::string>&
         std::stringstream ss;
         ss << std::left << std::setw(25) << "Name" << std::setw(6) << "ID" << std::setw(6) << "Cars" << std::endl;
         mLuaEngine->Server().ForEachClient([&](std::weak_ptr<TClient> Client) -> bool {
-            if (auto Locked = Client.lock()) {
+            if (!Client.expired()) {
-                ss << std::left << std::setw(25) << Locked->GetName()
+                auto locked = Client.lock();
-                   << std::setw(6) << Locked->GetID()
+                ss << std::left << std::setw(25) << locked->GetName()
-                   << std::setw(6) << Locked->GetCarCount() << "\n";
+                   << std::setw(6) << locked->GetID()
+                   << std::setw(6) << locked->GetCarCount() << "\n";
             }
             return true;
         });
@@ -590,7 +540,8 @@ void TConsole::Command_Status(const std::string&, const std::vector<std::string>
     size_t MissedPacketQueueSum = 0;
     int LargestSecondsSinceLastPing = 0;
     mLuaEngine->Server().ForEachClient([&](std::weak_ptr<TClient> Client) -> bool {
-        if (auto Locked = Client.lock()) {
+        if (!Client.expired()) {
+            auto Locked = Client.lock();
             CarCount += Locked->GetCarCount();
             ConnectedCount += Locked->IsUDPConnected() ? 1 : 0;
             GuestCount += Locked->IsGuest() ? 1 : 0;
@@ -609,11 +560,11 @@ void TConsole::Command_Status(const std::string&, const std::vector<std::string>
     size_t SystemsBad = 0;
     size_t SystemsShuttingDown = 0;
     size_t SystemsShutdown = 0;
-    std::string SystemsBadList { };
+    std::string SystemsBadList {};
-    std::string SystemsGoodList { };
+    std::string SystemsGoodList {};
-    std::string SystemsStartingList { };
+    std::string SystemsStartingList {};
-    std::string SystemsShuttingDownList { };
+    std::string SystemsShuttingDownList {};
-    std::string SystemsShutdownList { };
+    std::string SystemsShutdownList {};
     auto Statuses = Application::GetSubsystemStatuses();
     for (const auto& NameStatusPair : Statuses) {
         switch (NameStatusPair.second) {
@@ -649,7 +600,6 @@ void TConsole::Command_Status(const std::string&, const std::vector<std::string>
     SystemsShutdownList = SystemsShutdownList.substr(0, SystemsShutdownList.size() - 2);
 
     auto ElapsedTime = mLuaEngine->Server().UptimeTimer.GetElapsedTime();
-    auto ConnectionLimiterStats = mLuaEngine->Network().GetConnectionLimiterStats();
 
     Status << "BeamMP-Server Status:\n"
            << "\tTotal Players:             " << mLuaEngine->Server().ClientCount() << "\n"
@@ -664,11 +614,6 @@ void TConsole::Command_Status(const std::string&, const std::vector<std::string>
            << "\t\tStates:                      " << mLuaEngine->GetLuaStateCount() << "\n"
            << "\t\tEvent timers:                " << mLuaEngine->GetTimedEventsCount() << "\n"
            << "\t\tEvent handlers:              " << mLuaEngine->GetRegisteredEventHandlerCount() << "\n"
-           << "\tConnection limiter:\n"
-           << "\t\tActive/Max global:           " << ConnectionLimiterStats.CurrentGlobal << "/" << ConnectionLimiterStats.MaxGlobal << "\n"
-           << "\t\tActive IP buckets:           " << ConnectionLimiterStats.ActiveIpBuckets << "\n"
-           << "\t\tHighest single IP load:      " << ConnectionLimiterStats.CurrentMaxPerIp << "/" << ConnectionLimiterStats.MaxPerIp << "\n"
-           << "\t\tSaturated IP buckets:        " << ConnectionLimiterStats.SaturatedIpBuckets << "\n"
            << "\tSubsystems:\n"
            << "\t\tGood/Starting/Bad:           " << SystemsGood << "/" << SystemsStarting << "/" << SystemsBad << "\n"
            << "\t\tShutting down/Shut down:     " << SystemsShuttingDown << "/" << SystemsShutdown << "\n"
@@ -685,13 +630,9 @@ void TConsole::Command_Status(const std::string&, const std::vector<std::string>
 void TConsole::RunAsCommand(const std::string& cmd, bool IgnoreNotACommand) {
     auto FutureIsNonNil =
         [](const std::shared_ptr<TLuaResult>& Future) {
-            if (!Future->IsError()) {
+            if (!Future->Error && Future->Result.valid()) {
-                auto Snapshot = Future->GetDetachedSnapshot();
+                auto Type = Future->Result.get_type();
-                if (Snapshot.Result.V.valueless_by_exception() || std::get_if<std::monostate>(&Snapshot.Result.V) != nullptr) {
+                return Type != sol::type::lua_nil && Type != sol::type::none;
-                    // no value contained
-                    return false;
-                }
-                return true;
             }
             return false;
         };
@@ -701,7 +642,7 @@ void TConsole::RunAsCommand(const std::string& cmd, bool IgnoreNotACommand) {
         TLuaEngine::WaitForAll(Futures, std::chrono::seconds(5));
         size_t Count = 0;
         for (auto& Future : Futures) {
-            if (!Future->IsError()) {
+            if (!Future->Error) {
                 ++Count;
             }
         }
@@ -711,7 +652,7 @@ void TConsole::RunAsCommand(const std::string& cmd, bool IgnoreNotACommand) {
             }
         }
     }
-    if (NonNilFutures.empty()) {
+    if (NonNilFutures.size() == 0) {
         if (!IgnoreNotACommand) {
             Application::Console().WriteRaw("Error: Unknown command: '" + cmd + "'. Type 'help' to see a list of valid commands.");
         }
@@ -719,16 +660,14 @@ void TConsole::RunAsCommand(const std::string& cmd, bool IgnoreNotACommand) {
         std::stringstream Reply;
         if (NonNilFutures.size() > 1) {
             for (size_t i = 0; i < NonNilFutures.size(); ++i) {
-                auto Snapshot = NonNilFutures[i]->GetDetachedSnapshot();
+                Reply << NonNilFutures[i]->StateId << ": \n"
-                Reply << Snapshot.StateId << ": \n"
+                      << LuaAPI::LuaToString(NonNilFutures[i]->Result);
-                      << Snapshot.Result;
                 if (i < NonNilFutures.size() - 1) {
                     Reply << "\n";
                 }
             }
         } else {
-            auto Snapshot = NonNilFutures[0]->GetDetachedSnapshot();
+            Reply << LuaAPI::LuaToString(NonNilFutures[0]->Result);
-            Reply << Snapshot.Result;
         }
         Application::Console().WriteRaw(Reply.str());
     }
@@ -809,9 +748,8 @@ void TConsole::InitializeCommandline() {
                 } else {
                     auto Future = mLuaEngine->EnqueueScript(mStateId, { std::make_shared<std::string>(TrimmedCmd), "", "" });
                     Future->WaitUntilReady();
-                    if (Future->IsError()) {
+                    if (Future->Error) {
-                        auto Snapshot = Future->GetSnapshot();
+                        beammp_lua_error("error in " + mStateId + ": " + Future->ErrorMessage);
-                        beammp_lua_error("error in " + mStateId + ": " + Snapshot.ErrorMessage);
                     }
                 }
             } else {
@@ -843,7 +781,7 @@ void TConsole::InitializeCommandline() {
                 if (!mLuaEngine) {
                     beammp_info("Lua not started yet, please try again in a second");
                 } else {
-                    std::string prefix { }; // stores non-table part of input
+                    std::string prefix {}; // stores non-table part of input
                     for (size_t i = stub.length(); i > 0; i--) { // separate table from input
                         if (!std::isalnum(stub[i - 1]) && stub[i - 1] != '_' && stub[i - 1] != '.') {
                             prefix = stub.substr(0, i);

src/THeartbeatThread.cpp

@@ -181,8 +181,8 @@ std::string THeartbeatThread::GetPlayers() {
     std::string Return;
     mServer.ForEachClient([&](const std::weak_ptr<TClient>& ClientPtr) -> bool {
         ReadLock Lock(mServer.GetClientMutex());
-        if (auto Client = ClientPtr.lock()) {
+        if (!ClientPtr.expired()) {
-            Return += Client->GetName() + ";";
+            Return += ClientPtr.lock()->GetName() + ";";
         }
         return true;
     });

src/TIoPollThread.cpp

@@ -1,37 +0,0 @@
-// BeamMP, the BeamNG.drive multiplayer mod.
-// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
-//
-// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published
-// by the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#include "TIoPollThread.h"
-
-TIoPollThread::TIoPollThread()
-    : mWorkGuard(boost::asio::make_work_guard(mIoCtx))
-    , mThread([this](std::stop_token StopToken) {
-        while (!StopToken.stop_requested()) {
-            try {
-                mIoCtx.run();
-                break;
-            } catch (...) {
-                mIoCtx.restart();
-            }
-        }
-    }) { }
-
-TIoPollThread::~TIoPollThread() {
-    mWorkGuard.reset();
-    mIoCtx.stop();
-}

src/TLuaEngine.cpp

@@ -20,29 +20,40 @@
 #include "Client.h"
 #include "Common.h"
 #include "CustomAssert.h"
-#include "Env.h"
 #include "Http.h"
 #include "LuaAPI.h"
 #include "Profiling.h"
 #include "TLuaPlugin.h"
-#include "TLuaResult.h"
 #include "sol/object.hpp"
 
 #include <chrono>
 #include <condition_variable>
 #include <fmt/core.h>
-#include <mutex>
 #include <nlohmann/json.hpp>
+#include <optional>
 #include <random>
-#include <sol/types.hpp>
+#include <sol/stack_core.hpp>
 #include <thread>
 #include <tuple>
-#include <type_traits>
-#include <unordered_map>
-#include <variant>
 
 TLuaEngine* LuaAPI::MP::Engine;
 
+static sol::protected_function AddTraceback(sol::state_view StateView, sol::protected_function RawFn);
+
+static std::optional<sol::function> GetLuaHandler(sol::state_view StateView, const std::string Handler, const std::string EventName);
+
+static std::optional<sol::function> GetLuaHandler(sol::state_view StateView, const std::string Handler, const std::string EventName) {
+    if (!StateView)
+        return std::nullopt;
+    auto Res = StateView.safe_script("return " + Handler, sol::script_pass_on_error);
+    if (!Res.valid()) {
+        beammp_errorf("invalid handler for event \"{}\". handler: \"{}\"", EventName, Handler);
+    } else if (Res.get_type() == sol::type::function) {
+        return Res.get<sol::function>();
+    }
+    return std::nullopt;
+}
+
 TLuaEngine::TLuaEngine()
     : mResourceServerPath(fs::path(Application::Settings.getAsString(Settings::Key::General_ResourceFolder)) / "Server") {
     Application::SetSubsystemStatus("LuaEngine", Application::Status::Starting);
@@ -63,20 +74,24 @@ TLuaEngine::TLuaEngine()
     IThreaded::Start();
 }
 
+TEST_CASE("TLuaEngine ctor & dtor") {
+    Application::Settings.set(Settings::Key::General_ResourceFolder, "beammp_server_test_resources");
+    TLuaEngine engine;
+    Application::GracefullyShutdown();
+}
+
 void TLuaEngine::operator()() {
     RegisterThread("LuaEngine");
+    Application::SetSubsystemStatus("LuaEngine", Application::Status::Good);
     // lua engine main thread
     beammp_infof("Lua v{}.{}.{}", LUA_VERSION_MAJOR, LUA_VERSION_MINOR, LUA_VERSION_RELEASE);
     CollectAndInitPlugins();
-
-    Application::SetSubsystemStatus("LuaEngine", Application::Status::Good);
     // now call all onInit's
     auto Futures = TriggerEvent("onInit", "");
     WaitForAll(Futures, std::chrono::seconds(5));
     for (const auto& Future : Futures) {
-        auto Snapshot = Future->GetDetachedSnapshot();
+        if (Future->Error && Future->ErrorMessage != BeamMPFnNotFoundError) {
-        if (Snapshot.Error && Snapshot.ErrorMessage != BeamMPFnNotFoundError) {
+            beammp_lua_error("Calling \"onInit\" on \"" + Future->StateId + "\" failed: " + Future->ErrorMessage);
-            beammp_lua_error("Calling \"onInit\" on \"" + Snapshot.StateId + "\" failed: " + Snapshot.ErrorMessage);
         }
     }
 
@@ -86,11 +101,10 @@ void TLuaEngine::operator()() {
             std::unique_lock Lock(mResultsToCheckMutex);
             if (!mResultsToCheck.empty()) {
                 mResultsToCheck.remove_if([](const std::shared_ptr<TLuaResult>& Ptr) -> bool {
-                    if (Ptr->IsReady()) {
+                    if (Ptr->Ready) {
-                        auto Snapshot = Ptr->GetDetachedSnapshot();
+                        if (Ptr->Error) {
-                        if (Snapshot.Error) {
+                            if (Ptr->ErrorMessage != BeamMPFnNotFoundError) {
-                            if (Snapshot.ErrorMessage != BeamMPFnNotFoundError) {
+                                beammp_lua_error(Ptr->Function + ": " + Ptr->ErrorMessage);
-                                beammp_lua_error(Snapshot.Function + ": " + Snapshot.ErrorMessage);
                             }
                         }
                         return true;
@@ -115,7 +129,7 @@ void TLuaEngine::operator()() {
                     std::unique_lock StateLock(mLuaStatesMutex);
                     std::unique_lock Lock2(mResultsToCheckMutex);
                     for (auto& Handler : Handlers) {
-                        auto Res = mLuaStates[Timer.StateId]->EnqueueFunctionCallFromCustomEvent(Handler, { }, Timer.EventName, Timer.Strategy);
+                        auto Res = mLuaStates[Timer.StateId]->EnqueueFunctionCallFromCustomEvent(Handler, {}, Timer.EventName, Timer.Strategy);
                         if (Res) {
                             mResultsToCheck.push_back(Res);
                             mResultsToCheckCond.notify_one();
@@ -130,13 +144,7 @@ void TLuaEngine::operator()() {
                 }
             }
         }
-        bool StatesEmpty = false;
+        if (mLuaStates.size() == 0) {
-        {
-            std::unique_lock Lock(mLuaStatesMutex);
-            StatesEmpty = mLuaStates.empty();
-        }
-
-        if (StatesEmpty) {
             beammp_trace("No Lua states, event loop running extremely sparsely");
             Application::SleepSafeSeconds(10);
         } else {
@@ -209,8 +217,8 @@ std::unordered_map<std::string /* event name */, std::vector<std::string> /* han
     return Result;
 }
 
-std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> TLuaEngine::Debug_GetStateExecuteQueueForState(TLuaStateId StateId) {
+std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaResult>>> TLuaEngine::Debug_GetStateExecuteQueueForState(TLuaStateId StateId) {
-    std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> Result;
+    std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaResult>>> Result;
     std::unique_lock Lock(mLuaStatesMutex);
     Result = mLuaStates.at(StateId)->Debug_GetStateExecuteQueue();
     return Result;
@@ -223,16 +231,16 @@ std::vector<TLuaEngine::QueuedFunction> TLuaEngine::Debug_GetStateFunctionQueueF
     return Result;
 }
 
-std::vector<TLuaResult::DetachedSnapshot> TLuaEngine::Debug_GetResultsToCheckForState(TLuaStateId StateId) {
+std::vector<TLuaResult> TLuaEngine::Debug_GetResultsToCheckForState(TLuaStateId StateId) {
     std::unique_lock Lock(mResultsToCheckMutex);
     auto ResultsToCheckCopy = mResultsToCheck;
     Lock.unlock();
-    std::vector<TLuaResult::DetachedSnapshot> Result;
+    std::vector<TLuaResult> Result;
     while (!ResultsToCheckCopy.empty()) {
         auto ResultToCheck = std::move(ResultsToCheckCopy.front());
         ResultsToCheckCopy.pop_front();
-        if (ResultToCheck->OwnerState() == StateId) {
+        if (ResultToCheck->StateId == StateId) {
-            Result.push_back(ResultToCheck->GetDetachedSnapshot());
+            Result.push_back(*ResultToCheck);
         }
     }
     return Result;
@@ -263,7 +271,7 @@ std::vector<std::string> TLuaEngine::StateThreadData::GetStateTableKeys(const st
     auto globals = mStateView.globals();
 
     sol::table current = globals;
-    std::vector<std::string> Result { };
+    std::vector<std::string> Result {};
 
     for (const auto& [key, value] : current) {
         std::string s = key.as<std::string>();
@@ -319,30 +327,27 @@ void TLuaEngine::WaitForAll(std::vector<std::shared_ptr<TLuaResult>>& Results, c
         size_t ms = 0;
         std::set<std::string> WarnedResults;
 
-        while (!Result->IsReady() && !Cancelled) {
+        while (!Result->Ready && !Cancelled) {
             std::this_thread::sleep_for(std::chrono::milliseconds(10));
             ms += 10;
             if (Max.has_value() && std::chrono::milliseconds(ms) > Max.value()) {
-                auto Snapshot = Result->GetDetachedSnapshot();
+                beammp_trace("'" + Result->Function + "' in '" + Result->StateId + "' did not finish executing in time (took: " + std::to_string(ms) + "ms).");
-                beammp_trace("'" + Snapshot.Function + "' in '" + Snapshot.StateId + "' did not finish executing in time (took: " + std::to_string(ms) + "ms).");
                 Cancelled = true;
             } else if (ms > 1000 * 60) {
-                auto Snapshot = Result->GetDetachedSnapshot();
+                auto ResultId = Result->StateId + "_" + Result->Function;
-                auto ResultId = Snapshot.StateId + "_" + Snapshot.Function;
                 if (WarnedResults.count(ResultId) == 0) {
                     WarnedResults.insert(ResultId);
-                    beammp_lua_warn("'" + Snapshot.Function + "' in '" + Snapshot.StateId + "' is taking very long. The event it's handling is too important to discard the result of this handler, but may block this event and possibly the whole lua state.");
+                    beammp_lua_warn("'" + Result->Function + "' in '" + Result->StateId + "' is taking very long. The event it's handling is too important to discard the result of this handler, but may block this event and possibly the whole lua state.");
                 }
             }
         }
 
-        auto Snapshot = Result->GetDetachedSnapshot();
         if (Cancelled) {
-            beammp_lua_warn("'" + Snapshot.Function + "' in '" + Snapshot.StateId + "' failed to execute in time and was not waited for. It may still finish executing at a later time.");
+            beammp_lua_warn("'" + Result->Function + "' in '" + Result->StateId + "' failed to execute in time and was not waited for. It may still finish executing at a later time.");
             LuaAPI::MP::Engine->ReportErrors({ Result });
-        } else if (Snapshot.Error) {
+        } else if (Result->Error) {
-            if (Snapshot.ErrorMessage != BeamMPFnNotFoundError) {
+            if (Result->ErrorMessage != BeamMPFnNotFoundError) {
-                beammp_lua_error(Snapshot.Function + ": " + Snapshot.ErrorMessage);
+                beammp_lua_error(Result->Function + ": " + Result->ErrorMessage);
             }
         }
     }
@@ -362,7 +367,7 @@ bool TLuaEngine::HasState(TLuaStateId StateId) {
     return mLuaStates.find(StateId) != mLuaStates.end();
 }
 
-std::shared_ptr<TLuaVoidResult> TLuaEngine::EnqueueScript(TLuaStateId StateID, const TLuaChunk& Script) {
+std::shared_ptr<TLuaResult> TLuaEngine::EnqueueScript(TLuaStateId StateID, const TLuaChunk& Script) {
     std::unique_lock Lock(mLuaStatesMutex);
     return mLuaStates.at(StateID)->EnqueueScript(Script);
 }
@@ -442,11 +447,10 @@ void TLuaEngine::EnsureStateExists(TLuaStateId StateId, const std::string& Name,
         mLuaStates[StateId] = std::move(DataPtr);
         RegisterEvent("onInit", StateId, "onInit");
         if (!DontCallOnInit) {
-            auto Res = EnqueueFunctionCall(StateId, "onInit", { }, "onInit");
+            auto Res = EnqueueFunctionCall(StateId, "onInit", {}, "onInit");
             Res->WaitUntilReady();
-            auto Snapshot = Res->GetDetachedSnapshot();
+            if (Res->Error && Res->ErrorMessage != TLuaEngine::BeamMPFnNotFoundError) {
-            if (Snapshot.Error && Snapshot.ErrorMessage != TLuaEngine::BeamMPFnNotFoundError) {
+                beammp_lua_error("Calling \"onInit\" on \"" + StateId + "\" failed: " + Res->ErrorMessage);
-                beammp_lua_error("Calling \"onInit\" on \"" + StateId + "\" failed: " + Snapshot.ErrorMessage);
             }
         }
     }
@@ -458,7 +462,6 @@ void TLuaEngine::RegisterEvent(const std::string& EventName, TLuaStateId StateId
 }
 
 std::set<std::string> TLuaEngine::GetEventHandlersForState(const std::string& EventName, TLuaStateId StateId) {
-    std::unique_lock Lock(mLuaEventsMutex);
     return mLuaEvents[EventName][StateId];
 }
 
@@ -466,7 +469,7 @@ std::vector<sol::object> TLuaEngine::StateThreadData::JsonStringToArray(JsonStri
     auto LocalTable = Lua_JsonDecode(Str.value).as<std::vector<sol::object>>();
     for (auto& value : LocalTable) {
         if (value.is<std::string>() && value.as<std::string>() == BEAMMP_INTERNAL_NIL) {
-            value = sol::object { };
+            value = sol::object {};
         }
     }
     return LocalTable;
@@ -505,19 +508,23 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerGlobalEvent(const std::string
 
     sol::variadic_results LocalArgs = JsonStringToArray(Str);
     for (const auto& Handler : MyHandlers) {
-        auto Fn = mStateView[Handler];
+        auto Res = GetLuaHandler(mStateView, Handler, EventName);
-        if (Fn.valid()) {
+        if (Res.has_value()) {
+            sol::function Fn = Res.value();
+            Fn = AddTraceback(mStateView, Fn);
+
             auto LuaResult = Fn(LocalArgs);
-            auto Result = std::make_shared<TLuaResult>(mStateId, Handler);
+            auto Result = std::make_shared<TLuaResult>();
             if (LuaResult.valid()) {
-                try {
+                Result->Error = false;
-                    Result->MarkReadySuccess(LuaResult);
+                Result->Result = LuaResult;
-                } catch (const std::exception& e) {
-                    Result->MarkReadyError(fmt::format("Call was successful, but result could not be serialized"));
-                }
             } else {
-                Result->MarkReadyError("Function result in TriggerGlobalEvent was invalid");
+                Result->Error = true;
+                sol::error Err = LuaResult;
+                Result->ErrorMessage = Err.what();
+                beammp_errorf("An error occured while executing local event handler \"{}\" for event \"{}\": {}", Handler, EventName, Result->ErrorMessage);
             }
+            Result->MarkAsReady();
             Return.push_back(Result);
         }
     }
@@ -525,60 +532,26 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerGlobalEvent(const std::string
     sol::table AsyncEventReturn = StateView.create_table();
     AsyncEventReturn["ReturnValueImpl"] = Return;
     AsyncEventReturn.set_function("IsDone",
-        [](const sol::table& Self) -> bool {
+        [&](const sol::table& Self) -> bool {
             auto Vector = Self.get<std::vector<std::shared_ptr<TLuaResult>>>("ReturnValueImpl");
             for (const auto& Value : Vector) {
-                if (!Value->IsReady()) {
+                if (!Value->Ready) {
                     return false;
                 }
             }
             return true;
         });
     AsyncEventReturn.set_function("GetResults",
-        [](const sol::table& Self, sol::this_state State) -> sol::table {
+        [&](const sol::table& Self) -> sol::table {
-            sol::state_view StateView(State);
+            sol::state_view StateView(mState);
             sol::table Result = StateView.create_table();
             auto Vector = Self.get<std::vector<std::shared_ptr<TLuaResult>>>("ReturnValueImpl");
-            auto DetachedToLuaObject = [&StateView](const auto& SelfConvert, const TDetachedLuaValue& value) -> sol::object {
-                return std::visit([&StateView, &SelfConvert](auto&& arg) -> sol::object {
-                    using T = std::decay_t<decltype(arg)>;
-                    if constexpr (std::is_same_v<T, TDetachedLuaValue::Array>) {
-                        sol::table Table = StateView.create_table(static_cast<int>(arg.size()), 0);
-                        size_t i = 1;
-                        for (const auto& Elem : arg) {
-                            Table.set(i, SelfConvert(SelfConvert, Elem));
-                            ++i;
-                        }
-                        return sol::make_object(StateView, Table);
-                    } else if constexpr (std::is_same_v<T, TDetachedLuaValue::Object>) {
-                        sol::table Table = StateView.create_table();
-                        for (const auto& [Key, Elem] : arg) {
-                            Table.set(Key, SelfConvert(SelfConvert, *Elem));
-                        }
-                        return sol::make_object(StateView, Table);
-                    }
-                    else if constexpr (std::is_same_v<T, bool>)
-                        return sol::make_object(StateView, arg);
-                    else if constexpr (std::is_same_v<T, double>)
-                        return sol::make_object(StateView, arg);
-                    else if constexpr (std::is_same_v<T, int>)
-                        return sol::make_object(StateView, arg);
-                    else if constexpr (std::is_same_v<T, std::string>)
-                        return sol::make_object(StateView, arg);
-                    else if constexpr (std::is_same_v<T, std::monostate>)
-                        return sol::make_object(StateView, sol::lua_nil_t());
-                    else
-                        static_assert(AlwaysFalseV<T>, "non-exhaustive visitor!");
-                }, value.V);
-            };
             int i = 1;
             for (const auto& Value : Vector) {
-                if (!Value->IsReady()) {
+                if (!Value->Ready) {
                     return sol::lua_nil;
                 }
-                auto Snapshot = Value->GetDetachedSnapshot();
+                Result.set(i, Value->Result);
-                Result.set(i, DetachedToLuaObject(DetachedToLuaObject, Snapshot.Result));
-
                 ++i;
             }
             return Result;
@@ -591,20 +564,16 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerLocalEvent(const std::string&
     sol::table Result = mStateView.create_table();
     int i = 1;
     for (const auto& Handler : mEngine->GetEventHandlersForState(EventName, mStateId)) {
-        auto Fn = mStateView[Handler];
+        auto Res = GetLuaHandler(mStateView, Handler, EventName);
-        if (Fn.valid() && Fn.get_type() == sol::type::function) {
+        if (Res.has_value()) {
+            sol::function Fn = Res.value();
             auto FnRet = Fn(EventArgs);
             if (FnRet.valid()) {
                 Result.set(i, FnRet);
                 ++i;
             } else {
-                std::string ErrStr;
+                sol::error Err = FnRet;
-                if (FnRet.get_type() == sol::type::string) {
+                beammp_lua_error(std::string("TriggerLocalEvent: ") + Err.what());
-                    ErrStr = FnRet.get<sol::error>().what();
-                } else {
-                    ErrStr = "(unknown error; error object is not inspectable)";
-                }
-                beammp_lua_errorf("TriggerLocalEvent: {}", ErrStr);
             }
         }
     }
@@ -613,37 +582,37 @@ sol::table TLuaEngine::StateThreadData::Lua_TriggerLocalEvent(const std::string&
 
 sol::table TLuaEngine::StateThreadData::Lua_GetPlayerIdentifiers(int ID) {
     auto MaybeClient = GetClient(mEngine->Server(), ID);
-    if (MaybeClient) {
+    if (MaybeClient && !MaybeClient.value().expired()) {
-        if (std::shared_ptr<TClient> Locked = MaybeClient.value().lock()) {
+        auto IDs = MaybeClient.value().lock()->GetIdentifiers();
-            auto IDs = Locked->GetIdentifiers();
+        if (IDs.empty()) {
-            if (IDs.empty()) {
+            return sol::lua_nil;
-                return sol::lua_nil;
-            }
-            sol::table Result = mStateView.create_table();
-            for (const auto& Pair : IDs) {
-                Result.set(Pair.first, Pair.second);
-            }
-            return Result;
         }
+        sol::table Result = mStateView.create_table();
+        for (const auto& Pair : IDs) {
+            Result[Pair.first] = Pair.second;
+        }
+        return Result;
+    } else {
+        return sol::lua_nil;
     }
-    return sol::lua_nil;
 }
 
 std::variant<std::string, sol::nil_t> TLuaEngine::StateThreadData::Lua_GetPlayerRole(int ID) {
     auto MaybeClient = GetClient(mEngine->Server(), ID);
     if (MaybeClient) {
-        if (auto Locked = MaybeClient.value().lock()) {
+        return MaybeClient.value().lock()->GetRoles();
-            return Locked->GetRoles();
+    } else {
-        }
+        return sol::nil;
     }
-    return sol::nil;
 }
 
+
 sol::table TLuaEngine::StateThreadData::Lua_GetPlayers() {
     sol::table Result = mStateView.create_table();
     mEngine->Server().ForEachClient([&](std::weak_ptr<TClient> Client) -> bool {
-        if (auto Locked = Client.lock()) {
+        if (!Client.expired()) {
-            Result[Locked->GetID()] = Locked->GetName();
+            auto locked = Client.lock();
+            Result[locked->GetID()] = locked->GetName();
         }
         return true;
     });
@@ -653,9 +622,10 @@ sol::table TLuaEngine::StateThreadData::Lua_GetPlayers() {
 int TLuaEngine::StateThreadData::Lua_GetPlayerIDByName(const std::string& Name) {
     int Id = -1;
     mEngine->mServer->ForEachClient([&Id, &Name](std::weak_ptr<TClient> Client) -> bool {
-        if (auto Locked = Client.lock()) {
+        if (!Client.expired()) {
-            if (Locked->GetName() == Name) {
+            auto locked = Client.lock();
-                Id = Locked->GetID();
+            if (locked->GetName() == Name) {
+                Id = locked->GetID();
                 return false;
             }
         }
@@ -692,59 +662,60 @@ sol::table TLuaEngine::StateThreadData::Lua_FS_ListDirectories(const std::string
 
 std::string TLuaEngine::StateThreadData::Lua_GetPlayerName(int ID) {
     auto MaybeClient = GetClient(mEngine->Server(), ID);
-    if (MaybeClient) {
+    if (MaybeClient && !MaybeClient.value().expired()) {
-        if (auto Locked = MaybeClient.value().lock()) {
+        return MaybeClient.value().lock()->GetName();
-            return Locked->GetName();
+    } else {
-        }
+        return "";
     }
-    return "";
 }
 
 sol::table TLuaEngine::StateThreadData::Lua_GetPlayerVehicles(int ID) {
     auto MaybeClient = GetClient(mEngine->Server(), ID);
-    if (MaybeClient) {
+    if (MaybeClient && !MaybeClient.value().expired()) {
-        if (auto Client = MaybeClient.value().lock()) {
+        auto Client = MaybeClient.value().lock();
-            TClient::TSetOfVehicleData VehicleData;
+        TClient::TSetOfVehicleData VehicleData;
-            { // Vehicle Data Lock Scope
+        { // Vehicle Data Lock Scope
-                auto LockedData = Client->GetAllCars();
+            auto LockedData = Client->GetAllCars();
-                VehicleData = *LockedData.VehicleData;
+            VehicleData = *LockedData.VehicleData;
-            } // End Vehicle Data Lock Scope
+        } // End Vehicle Data Lock Scope
-            if (VehicleData.empty()) {
+        if (VehicleData.empty()) {
-                return sol::lua_nil;
+            return sol::lua_nil;
-            }
-            sol::state_view StateView(mState);
-            sol::table Result = StateView.create_table();
-            for (const auto& v : VehicleData) {
-                Result[v.ID()] = v.DataAsPacket(Client->GetRoles(), Client->GetName(), Client->GetID()).substr(3);
-            }
-            return Result;
         }
-    }
+        sol::state_view StateView(mState);
-    return sol::lua_nil;
+        sol::table Result = StateView.create_table();
+        for (const auto& v : VehicleData) {
+            Result[v.ID()] = v.Data().substr(3);
+        }
+        return Result;
+    } else
+        return sol::lua_nil;
 }
 
 std::pair<sol::table, std::string> TLuaEngine::StateThreadData::Lua_GetPositionRaw(int PID, int VID) {
     std::pair<sol::table, std::string> Result;
     auto MaybeClient = GetClient(mEngine->Server(), PID);
-    if (MaybeClient) {
+    if (MaybeClient && !MaybeClient.value().expired()) {
-        if (auto Client = MaybeClient.value().lock()) {
+        auto Client = MaybeClient.value().lock();
-            std::string VehiclePos = Client->GetCarPositionRaw(VID);
+        std::string VehiclePos = Client->GetCarPositionRaw(VID);
 
-            if (VehiclePos.empty()) {
+        if (VehiclePos.empty()) {
-                Result.second = "Vehicle not found";
+            // return std::make_tuple(sol::lua_nil, sol::make_object(StateView, "Vehicle not found"));
-                return Result;
+            Result.second = "Vehicle not found";
-            }
-
-            sol::table t = Lua_JsonDecode(VehiclePos);
-            if (t == sol::lua_nil) {
-                Result.second = "Packet decode failed";
-            }
-            Result.first = t;
             return Result;
         }
+
+        sol::table t = Lua_JsonDecode(VehiclePos);
+        if (t == sol::lua_nil) {
+            Result.second = "Packet decode failed";
+        }
+        // return std::make_tuple(Result, sol::make_object(StateView, sol::lua_nil));
+        Result.first = t;
+        return Result;
+    } else {
+        // return std::make_tuple(sol::lua_nil, sol::make_object(StateView, "Client expired"));
+        Result.second = "No such player";
+        return Result;
     }
-    Result.second = "No such player";
-    return Result;
 }
 
 sol::table TLuaEngine::StateThreadData::Lua_HttpCreateConnection(const std::string& host, uint16_t port) {
@@ -778,38 +749,10 @@ static void AddToTable(sol::table& table, const std::string& left, const T& valu
     }
 }
 
-static bool mDisableMPSet = [] {
-    auto DisableMPSet = Env::Get(Env::Key::PROVIDER_DISABLE_MP_SET).value_or("false");
-    return DisableMPSet == "true" || DisableMPSet == "1";
-}();
-
-static auto GetSettingName = [](int id) -> const char* {
-    switch (id) {
-    case 0:
-        return "Debug";
-    case 1:
-        return "Private";
-    case 2:
-        return "MaxCars";
-    case 3:
-        return "MaxPlayers";
-    case 4:
-        return "Map";
-    case 5:
-        return "Name";
-    case 6:
-        return "Description";
-    case 7:
-        return "InformationPacket";
-    default:
-        return "Unknown";
-    }
-};
-
 static void JsonDecodeRecursive(sol::state_view& StateView, sol::table& table, const std::string& left, const nlohmann::json& right) {
     switch (right.type()) {
     case nlohmann::detail::value_t::null:
-        AddToTable(table, left, sol::lua_nil_t { });
+        AddToTable(table, left, sol::lua_nil_t {});
         return;
     case nlohmann::detail::value_t::object: {
         auto value = table.create();
@@ -937,15 +880,7 @@ TLuaEngine::StateThreadData::StateThreadData(const std::string& Name, TLuaStateI
     MPTable.set_function("GetPositionRaw", [&](int PID, int VID) -> std::pair<sol::table, std::string> {
         return Lua_GetPositionRaw(PID, VID);
     });
-    MPTable.set_function("SendChatMessage", [&](sol::variadic_args Args) {
+    MPTable.set_function("SendChatMessage", &LuaAPI::MP::SendChatMessage);
-        if (Args.size() == 2) {
-            LuaAPI::MP::SendChatMessage(Args.get<int>(0), Args.get<std::string>(1));
-        } else if (Args.size() == 3) {
-            LuaAPI::MP::SendChatMessage(Args.get<int>(0), Args.get<std::string>(1), Args.get<bool>(2));
-        } else {
-            beammp_lua_error("SendChatMessage expects 2 or 3 arguments.");
-        }
-    });
     MPTable.set_function("SendNotification", [&](sol::variadic_args Args) {
         if (Args.size() == 2) {
             LuaAPI::MP::SendNotification(Args.get<int>(0), Args.get<std::string>(1), "", Args.get<std::string>(1));
@@ -957,9 +892,6 @@ TLuaEngine::StateThreadData::StateThreadData(const std::string& Name, TLuaStateI
             beammp_lua_error("SendNotification expects 2, 3 or 4 arguments.");
         }
     });
-    MPTable.set_function("ConfirmationDialog", sol::overload(&LuaAPI::MP::ConfirmationDialog, [&](const int& ID, const std::string& Title, const std::string& Body, const sol::table& Buttons, const std::string& InteractionID) {
-        LuaAPI::MP::ConfirmationDialog(ID, Title, Body, Buttons, InteractionID);
-    }));
     MPTable.set_function("GetPlayers", [&]() -> sol::table {
         return Lua_GetPlayers();
     });
@@ -1003,13 +935,7 @@ TLuaEngine::StateThreadData::StateThreadData(const std::string& Name, TLuaStateI
     MPTable.set_function("CancelEventTimer", [&](const std::string& EventName) {
         mEngine->CancelEventTimers(EventName, mStateId);
     });
-    if (mDisableMPSet) {
+    MPTable.set_function("Set", &LuaAPI::MP::Set);
-        MPTable.set_function("Set", [this](int ConfigID, sol::object NewValue) {
-            beammp_lua_errorf("A script ({}) tried to call MP.Set to change setting '{}' but this was blocked by your server provider.", mStateId, GetSettingName(ConfigID));
-        });
-    } else {
-        MPTable.set_function("Set", &LuaAPI::MP::Set);
-    }
     MPTable.set_function("Get", &LuaAPI::MP::Get);
 
     auto UtilTable = StateView.create_named_table("Util");
@@ -1130,16 +1056,15 @@ TLuaEngine::StateThreadData::StateThreadData(const std::string& Name, TLuaStateI
     Start();
 }
 
-std::shared_ptr<TLuaVoidResult> TLuaEngine::StateThreadData::EnqueueScript(const TLuaChunk& Script) {
+std::shared_ptr<TLuaResult> TLuaEngine::StateThreadData::EnqueueScript(const TLuaChunk& Script) {
     std::unique_lock Lock(mStateExecuteQueueMutex);
-    auto Result = std::make_shared<TLuaVoidResult>(mStateId);
+    auto Result = std::make_shared<TLuaResult>();
     mStateExecuteQueue.push({ Script, Result });
     return Result;
 }
 
 std::shared_ptr<TLuaResult> TLuaEngine::StateThreadData::EnqueueFunctionCallFromCustomEvent(const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName, CallStrategy Strategy) {
     // TODO: Document all this
-    std::unique_lock Lock(mStateFunctionQueueMutex);
     decltype(mStateFunctionQueue)::iterator Iter = mStateFunctionQueue.end();
     if (Strategy == CallStrategy::BestEffort) {
         Iter = std::find_if(mStateFunctionQueue.begin(), mStateFunctionQueue.end(),
@@ -1148,7 +1073,10 @@ std::shared_ptr<TLuaResult> TLuaEngine::StateThreadData::EnqueueFunctionCallFrom
             });
     }
     if (Iter == mStateFunctionQueue.end()) {
-        auto Result = std::make_shared<TLuaResult>(mStateId, FunctionName);
+        auto Result = std::make_shared<TLuaResult>();
+        Result->StateId = mStateId;
+        Result->Function = FunctionName;
+        std::unique_lock Lock(mStateFunctionQueueMutex);
         mStateFunctionQueue.push_back({ FunctionName, Result, Args, EventName });
         mStateFunctionQueueCond.notify_all();
         return Result;
@@ -1158,7 +1086,9 @@ std::shared_ptr<TLuaResult> TLuaEngine::StateThreadData::EnqueueFunctionCallFrom
 }
 
 std::shared_ptr<TLuaResult> TLuaEngine::StateThreadData::EnqueueFunctionCall(const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName) {
-    auto Result = std::make_shared<TLuaResult>(mStateId, FunctionName);
+    auto Result = std::make_shared<TLuaResult>();
+    Result->StateId = mStateId;
+    Result->Function = FunctionName;
     std::unique_lock Lock(mStateFunctionQueueMutex);
     mStateFunctionQueue.push_back({ FunctionName, Result, Args, EventName });
     mStateFunctionQueueCond.notify_all();
@@ -1169,6 +1099,21 @@ void TLuaEngine::StateThreadData::RegisterEvent(const std::string& EventName, co
     mEngine->RegisterEvent(EventName, mStateId, FunctionName);
 }
 
+static sol::protected_function AddTraceback(sol::state_view StateView, sol::protected_function RawFn) {
+    StateView["INTERNAL_ERROR_HANDLER"] = [](lua_State *L) {
+        auto Error = sol::stack::get<std::optional<std::string>>(L);
+        std::string ErrorString = "<Unknown error>";
+        if (Error.has_value()) {
+            ErrorString = Error.value();
+        }
+        auto DebugTracebackFn = sol::state_view(L).globals().get<sol::table>("debug").get<sol::protected_function>("traceback");
+        // 2 = start collecting the trace one above the current function (1=current function)
+        std::string Traceback = DebugTracebackFn(ErrorString, 2);
+        return sol::stack::push(L, Traceback);
+    };
+    return sol::protected_function(RawFn, StateView["INTERNAL_ERROR_HANDLER"]);
+}
+
 void TLuaEngine::StateThreadData::operator()() {
     RegisterThread("Lua:" + mStateId);
     while (!Application::IsShuttingDown()) {
@@ -1207,14 +1152,14 @@ void TLuaEngine::StateThreadData::operator()() {
                 sol::state_view StateView(mState);
                 auto Res = StateView.safe_script(*S.first.Content, sol::script_pass_on_error, S.first.FileName);
                 if (Res.valid()) {
-                    // Script-load completion should not serialize the script's return value.
+                    S.second->Error = false;
-                    // A loaded chunk may legally return non-serializable Lua values such as
+                    S.second->Result = std::move(Res);
-                    // functions or function tables. For this reason, we don't pass anything
-                    // to the result here.
-                    S.second->MarkReadySuccess();
                 } else {
-                    S.second->MarkReadyError(std::move(Res));
+                    S.second->Error = true;
+                    sol::error Err = Res;
+                    S.second->ErrorMessage = Err.what();
                 }
+                S.second->MarkAsReady();
             }
         }
         { // StateFunctionQueue Scope
@@ -1231,54 +1176,61 @@ void TLuaEngine::StateThreadData::operator()() {
                 auto& Result = TheQueuedFunction.Result;
                 auto Args = TheQueuedFunction.Args;
                 // TODO: Use TheQueuedFunction.EventName for errors, warnings, etc
-                Result->SetOwnerState(mStateId);
+                Result->StateId = mStateId;
                 sol::state_view StateView(mState);
-                auto Fn = StateView[FnName];
+
-                if (Fn.valid() && Fn.get_type() == sol::type::function) {
+                auto Res = GetLuaHandler(StateView, FnName, TheQueuedFunction.EventName);
+                if (Res.has_value()) {
+                    sol::function Fn = Res.value();
                     std::vector<sol::object> LuaArgs;
                     for (const auto& Arg : Args) {
                         if (Arg.valueless_by_exception()) {
                             continue;
                         }
-                        std::visit([&LuaArgs, &StateView, this](const auto& arg) {
+                        switch (Arg.index()) {
-                            using T = std::decay_t<decltype(arg)>;
+                        case TLuaType::String:
-                            if constexpr (std::is_same_v<T, std::string>) {
+                            LuaArgs.push_back(sol::make_object(StateView, std::get<std::string>(Arg)));
-                                LuaArgs.push_back(sol::make_object(StateView, arg));
+                            break;
-                            } else if constexpr (std::is_same_v<T, int>) {
+                        case TLuaType::Int:
-                                LuaArgs.push_back(sol::make_object(StateView, arg));
+                            LuaArgs.push_back(sol::make_object(StateView, std::get<int>(Arg)));
-                            } else if constexpr (std::is_same_v<T, bool>) {
+                            break;
-                                LuaArgs.push_back(sol::make_object(StateView, arg));
+                        case TLuaType::Json: {
-                            } else if constexpr (std::is_same_v<T, JsonString>) {
+                            auto LocalArgs = JsonStringToArray(std::get<JsonString>(Arg));
-                                auto LocalArgs = JsonStringToArray(arg);
+                            LuaArgs.insert(LuaArgs.end(), LocalArgs.begin(), LocalArgs.end());
-                                LuaArgs.insert(LuaArgs.end(), LocalArgs.begin(), LocalArgs.end());
+                            break;
-                            } else if constexpr (std::is_same_v<T, std::monostate>) {
+                        }
-                                beammp_lua_error("Unknown argument type, passed as nil");
+                        case TLuaType::Bool:
-                                LuaArgs.push_back(sol::lua_nil_t());
+                            LuaArgs.push_back(sol::make_object(StateView, std::get<bool>(Arg)));
-                            } else if constexpr (std::is_same_v<T, std::unordered_map<std::string, std::string>>) {
+                            break;
-                                auto Table = StateView.create_table();
+                        case TLuaType::StringStringMap: {
-                                for (const auto& [k, v] : arg) {
+                            auto Map = std::get<std::unordered_map<std::string, std::string>>(Arg);
-                                    Table[k] = v;
+                            auto Table = StateView.create_table();
-                                }
+                            for (const auto& [k, v] : Map) {
-                                LuaArgs.push_back(Table);
+                                Table[k] = v;
-                            } else if constexpr (std::is_same_v<T, float>) {
-                                LuaArgs.push_back(sol::make_object(StateView, arg));
-                            } else {
-                                static_assert(AlwaysFalseV<T>, "unhandled variant");
                             }
-                        }, Arg);
+                            LuaArgs.push_back(sol::make_object(StateView, Table));
+                            break;
+                        }
+                        default:
+                            beammp_error("Unknown argument type, passed as nil");
+                            break;
+                        }
                     }
+                    Fn = AddTraceback(StateView, Fn);
                     auto Res = Fn(sol::as_args(LuaArgs));
                     if (Res.valid()) {
-                        try {
+                        Result->Error = false;
-                            Result->MarkReadySuccess(std::move(Res));
+                        Result->Result = std::move(Res);
-                        } catch (const std::exception& e) {
-                            Result->MarkReadyError(fmt::format("Call was successful, but result could not be serialized"));
-                        }
                     } else {
-                        Result->MarkReadyError(std::move(Res));
+                        Result->Error = true;
+                        sol::error Err = Res;
+                        Result->ErrorMessage = Err.what();
                     }
+                    Result->MarkAsReady();
                 } else {
-                    Result->MarkReadyError(BeamMPFnNotFoundError);
+                    Result->Error = true;
+                    Result->ErrorMessage = BeamMPFnNotFoundError; // special error kind that we can ignore later
+                    Result->MarkAsReady();
                 }
                 auto ProfEnd = prof::now();
                 auto ProfDuration = prof::duration(ProfStart, ProfEnd);
@@ -1288,7 +1240,7 @@ void TLuaEngine::StateThreadData::operator()() {
     }
 }
 
-std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> TLuaEngine::StateThreadData::Debug_GetStateExecuteQueue() {
+std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaResult>>> TLuaEngine::StateThreadData::Debug_GetStateExecuteQueue() {
     std::unique_lock Lock(mStateExecuteQueueMutex);
     return mStateExecuteQueue;
 }
@@ -1331,6 +1283,21 @@ void TLuaEngine::StateThreadData::AddPath(const fs::path& Path) {
     mPaths.push(Path);
 }
 
+void TLuaResult::MarkAsReady() {
+    {
+        std::lock_guard<std::mutex> readyLock(*this->ReadyMutex);
+        this->Ready = true;
+    }
+    this->ReadyCondition->notify_all();
+}
+
+void TLuaResult::WaitUntilReady() {
+    std::unique_lock readyLock(*this->ReadyMutex);
+    // wait if not ready yet
+    if (!this->Ready)
+        this->ReadyCondition->wait(readyLock);
+}
+
 TLuaChunk::TLuaChunk(std::shared_ptr<std::string> Content, std::string FileName, std::string PluginPath)
     : Content(Content)
     , FileName(FileName)
@@ -1345,110 +1312,3 @@ bool TLuaEngine::TimedEvent::Expired() {
 void TLuaEngine::TimedEvent::Reset() {
     LastCompletion = std::chrono::high_resolution_clock::now();
 }
-
-TEST_CASE("TLuaEngine ctor & dtor") {
-    Application::Settings.set(Settings::Key::General_ResourceFolder, "beammp_server_test_resources");
-    TLuaEngine engine;
-
-    const TLuaStateId StateId = "lua_event_contract_test";
-    engine.EnsureStateExists(StateId, "LuaEventContractTest", true);
-
-    // LLM generated test code
-    auto Script = std::make_shared<std::string>(R"(
-function onPlayerAuth(playerName, playerRole, isGuest, identifiers)
-    if type(playerName) ~= "string" then return "on:bad-playerName-type:" .. type(playerName) end
-    if type(playerRole) ~= "string" then return "on:bad-playerRole-type:" .. type(playerRole) end
-    if type(isGuest) ~= "boolean" then return "on:bad-isGuest-type:" .. type(isGuest) end
-    if type(identifiers) ~= "table" then return "on:bad-identifiers-type:" .. type(identifiers) end
-    return "on:" .. playerName .. ":" .. playerRole .. ":" .. tostring(isGuest) .. ":" .. tostring(identifiers.ip) .. ":" .. tostring(identifiers.beammp)
-end
-
-function postPlayerAuth(isDenied, reason, playerName, playerRole, isGuest, identifiers)
-    if type(isDenied) ~= "boolean" then return "post:bad-isDenied-type:" .. type(isDenied) end
-    if type(reason) ~= "string" then return "post:bad-reason-type:" .. type(reason) end
-    if type(playerName) ~= "string" then return "post:bad-playerName-type:" .. type(playerName) end
-    if type(playerRole) ~= "string" then return "post:bad-playerRole-type:" .. type(playerRole) end
-    if type(isGuest) ~= "boolean" then return "post:bad-isGuest-type:" .. type(isGuest) end
-    if type(identifiers) ~= "table" then return "post:bad-identifiers-type:" .. type(identifiers) end
-    return "post:" .. tostring(isDenied) .. ":" .. reason .. ":" .. playerName .. ":" .. playerRole .. ":" .. tostring(isGuest) .. ":" .. tostring(identifiers.ip) .. ":" .. tostring(identifiers.beammp)
-end
-
-function arrayBoundaryHandler()
-    return { "first", "second", [4] = true }
-end
-
-function verifyArrayBoundaryRoundtrip()
-    local pending = MP.TriggerGlobalEvent("arrayBoundaryEvent")
-    if not pending:IsDone() then
-        return "not_done"
-    end
-
-    local results = pending:GetResults()
-    if type(results) ~= "table" then
-        return "bad_results_type:" .. type(results)
-    end
-    if type(results[1]) ~= "table" then
-        return "bad_item_type:" .. type(results[1])
-    end
-
-    local arr = results[1]
-    return tostring(arr[1]) .. "|" .. tostring(arr[2]) .. "|" .. tostring(arr[4]) .. "|" .. tostring(arr[3] == nil)
-end
-
-MP.RegisterEvent("onPlayerAuth", "onPlayerAuth")
-MP.RegisterEvent("postPlayerAuth", "postPlayerAuth")
-MP.RegisterEvent("arrayBoundaryEvent", "arrayBoundaryHandler")
-)");
-
-    auto LoadResult = engine.EnqueueScript(StateId, TLuaChunk(Script, "event_contract.lua", "beammp_server_test_resources/Server/LuaEventContractTest"));
-    LoadResult->WaitUntilReady();
-    auto LoadSnapshot = LoadResult->GetSnapshot();
-    CHECK(!LoadSnapshot.Error);
-
-    const std::unordered_map<std::string, std::string> Identifiers {
-        {"ip", "410.0.24.1"},
-        {"beammp", "123456"},
-    };
-
-    auto OnPlayerAuthResults = engine.TriggerEvent(
-        "onPlayerAuth", "",
-        std::string("guest8133569"),
-        std::string("USER"),
-        true,
-        Identifiers);
-    REQUIRE(OnPlayerAuthResults.size() == 1);
-    TLuaEngine::WaitForAll(OnPlayerAuthResults);
-
-    auto OnPlayerAuthSnapshot = OnPlayerAuthResults.front()->GetDetachedSnapshot();
-    CHECK(!OnPlayerAuthSnapshot.Error);
-    const auto* OnPlayerAuthValue = std::get_if<std::string>(&OnPlayerAuthSnapshot.Result.V);
-    REQUIRE(OnPlayerAuthValue != nullptr);
-    CHECK(*OnPlayerAuthValue == "on:guest8133569:USER:true:410.0.24.1:123456");
-
-    auto PostPlayerAuthResults = engine.TriggerEvent(
-        "postPlayerAuth", "",
-        false,
-        std::string(""),
-        std::string("guest8133569"),
-        std::string("USER"),
-        true,
-        Identifiers);
-    REQUIRE(PostPlayerAuthResults.size() == 1);
-    TLuaEngine::WaitForAll(PostPlayerAuthResults);
-
-    auto PostPlayerAuthSnapshot = PostPlayerAuthResults.front()->GetDetachedSnapshot();
-    CHECK(!PostPlayerAuthSnapshot.Error);
-    const auto* PostPlayerAuthValue = std::get_if<std::string>(&PostPlayerAuthSnapshot.Result.V);
-    REQUIRE(PostPlayerAuthValue != nullptr);
-    CHECK(*PostPlayerAuthValue == "post:false::guest8133569:USER:true:410.0.24.1:123456");
-
-    auto ArrayRoundtrip = engine.EnqueueFunctionCall(StateId, "verifyArrayBoundaryRoundtrip", {}, "verifyArrayBoundaryRoundtrip");
-    ArrayRoundtrip->WaitUntilReady();
-    auto ArrayRoundtripSnapshot = ArrayRoundtrip->GetDetachedSnapshot();
-    CHECK(!ArrayRoundtripSnapshot.Error);
-    const auto* ArrayRoundtripValue = std::get_if<std::string>(&ArrayRoundtripSnapshot.Result.V);
-    REQUIRE(ArrayRoundtripValue != nullptr);
-    CHECK(*ArrayRoundtripValue == "first|second|true|true");
-
-    Application::GracefullyShutdown();
-}

src/TLuaPlugin.cpp

@@ -44,7 +44,7 @@ TLuaPlugin::TLuaPlugin(TLuaEngine& Engine, const TLuaPluginConfig& Config, const
         std::transform(secondStr.begin(), secondStr.end(), secondStr.begin(), ::tolower);
         return firstStr < secondStr;
     });
-    std::vector<std::pair<fs::path, std::shared_ptr<TLuaVoidResult>>> ResultsToCheck;
+    std::vector<std::pair<fs::path, std::shared_ptr<TLuaResult>>> ResultsToCheck;
     for (const auto& Entry : Entries) {
         // read in entire file
         try {
@@ -63,9 +63,8 @@ TLuaPlugin::TLuaPlugin(TLuaEngine& Engine, const TLuaPluginConfig& Config, const
     }
     for (auto& Result : ResultsToCheck) {
         Result.second->WaitUntilReady();
-        auto Snapshot = Result.second->GetSnapshot();
+        if (Result.second->Error) {
-        if (Snapshot.Error) {
+            beammp_lua_error("Failed: \"" + Result.first.string() + "\": " + Result.second->ErrorMessage);
-            beammp_lua_error("Failed: \"" + Result.first.string() + "\": " + Snapshot.ErrorMessage);
         }
     }
 }

src/TLuaResult.cpp

@@ -1,425 +0,0 @@
-// BeamMP, the BeamNG.drive multiplayer mod.
-// Copyright (C) 2026 BeamMP Ltd., BeamMP team and contributors.
-//
-// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published
-// by the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-#include "TLuaResult.h"
-#include <algorithm>
-#include <atomic>
-#include <chrono>
-#include <cmath>
-#include <limits>
-#include <sol/unsafe_function_result.hpp>
-#include <stdexcept>
-#include <thread>
-
-
-std::ostream& operator<<(std::ostream& os, const TDetachedLuaValue& value) {
-    std::visit([&os](auto&& arg) {
-        using T = std::decay_t<decltype(arg)>;
-        if constexpr (std::is_same_v<T, TDetachedLuaValue::Array>) {
-            size_t i = 0;
-            for (const auto& val : arg) {
-                if (i > 0) {
-                    os << ", ";
-                }
-                os << val;
-                ++i;
-            }
-        } else if constexpr (std::is_same_v<T, TDetachedLuaValue::Object>) {
-            size_t i = 0;
-            for (const auto& [key, val] : arg) {
-                if (i > 0) {
-                    os << ", ";
-                }
-                os << key << "=" << val;
-                ++i;
-            }
-        } else if constexpr (std::is_same_v<T, bool>)
-            os << (arg ? "true" : "false");
-        else if constexpr (std::is_same_v<T, double>)
-            os << arg;
-        else if constexpr (std::is_same_v<T, int>)
-            os << arg;
-        else if constexpr (std::is_same_v<T, std::string>)
-            os << arg;
-        else if constexpr (std::is_same_v<T, std::monostate>)
-            // monostate means no result value
-            os << "";
-        else
-            static_assert(AlwaysFalseV<T>, "non-exhaustive visitor!");
-    },
-        value.V);
-
-    return os;
-}
-
-void TLuaVoidResult::MarkReadySuccess() {
-    std::unique_lock Lock(mMutex);
-    mError = false;
-    mErrorMessage.clear();
-    MarkAsReady();
-}
-
-void TLuaVoidResult::MarkReadyError(sol::protected_function_result Res) {
-    std::unique_lock Lock(mMutex);
-    mError = true;
-    SetErrorMessageFromResult(Res);
-    MarkAsReady();
-}
-
-void TLuaVoidResult::MarkReadyError(std::string Res) {
-    std::unique_lock Lock(mMutex);
-    mError = true;
-    mErrorMessage = std::move(Res);
-    MarkAsReady();
-}
-
-bool TLuaVoidResult::IsReady() const {
-    std::unique_lock Lock(mMutex);
-    return mReady;
-}
-
-bool TLuaVoidResult::IsError() const {
-    std::unique_lock Lock(mMutex);
-    return mError;
-}
-
-TLuaVoidResult::Snapshot TLuaVoidResult::GetSnapshot() const {
-    std::unique_lock Lock(mMutex);
-    Snapshot snapshot {
-        .Error = mError,
-        .Ready = mReady,
-        .ErrorMessage = mErrorMessage,
-        .StateId = mStateId,
-    };
-    return snapshot;
-}
-
-void TLuaVoidResult::MarkAsReady() {
-    mReady = true;
-    mReadyCondition.notify_all();
-}
-
-void TLuaVoidResult::WaitUntilReady() {
-    std::unique_lock Lock(mMutex);
-    while (!mReady)
-        mReadyCondition.wait_for(Lock, std::chrono::milliseconds(50),
-            [this] {
-                return mReady;
-            });
-}
-
-
-void TLuaResult::MarkReadySuccess(sol::object Res) {
-    std::unique_lock Lock(mMutex);
-    mError = false;
-    mDetachedResult = Freeze(Res);
-
-    MarkAsReady();
-}
-
-void TLuaResult::MarkReadySuccessNoResult() {
-    std::unique_lock Lock(mMutex);
-    mError = false;
-    mDetachedResult = { { std::monostate { } } };
-
-    MarkAsReady();
-}
-
-void TLuaResult::MarkReadyError(sol::protected_function_result Res) {
-    std::unique_lock Lock(mMutex);
-    mError = true;
-    SetErrorMessageFromResult(Res);
-
-    MarkAsReady();
-}
-
-void TLuaResult::MarkReadyError(std::string Res) {
-    std::unique_lock Lock(mMutex);
-    mError = true;
-    mErrorMessage = std::move(Res);
-
-    MarkAsReady();
-}
-
-bool TLuaResult::IsReady() const {
-    std::unique_lock Lock(mMutex);
-    return mReady;
-}
-bool TLuaResult::IsError() const {
-    std::unique_lock Lock(mMutex);
-    return mError;
-}
-
-TLuaStateId TLuaResult::OwnerState() const {
-    std::unique_lock Lock(mMutex);
-    // copy
-    return mStateId;
-}
-void TLuaResult::SetOwnerState(TLuaStateId StateId) {
-    std::unique_lock Lock(mMutex);
-    mStateId = std::move(StateId);
-}
-
-TLuaResult::DetachedSnapshot TLuaResult::GetDetachedSnapshot() const {
-    std::unique_lock Lock(mMutex);
-    DetachedSnapshot snapshot {
-        .Error = mError,
-        .Ready = mReady,
-        .ErrorMessage = mErrorMessage,
-        .Result = mDetachedResult,
-        .StateId = mStateId,
-        .Function = mFunction,
-    };
-    return snapshot;
-}
-
-TDetachedLuaValue TLuaResult::Freeze(const sol::object& o, int depth) {
-    if (depth > 64)
-        throw std::runtime_error("max depth (64) reached");
-    switch (o.get_type()) {
-    case sol::type::lua_nil:
-        return { { std::monostate { } } };
-    case sol::type::boolean:
-        return { { o.as<bool>() } };
-    case sol::type::number: {
-        if (o.is<int>()) {
-            return { { o.as<int>() } };
-        } else {
-            return { { o.as<double>() } };
-        }
-    }
-    case sol::type::string:
-        return { { o.as<std::string>() } };
-    case sol::type::table: {
-        TDetachedLuaValue::Object ObjectOut;
-        // numeric stuff is for arrays
-        std::vector<std::pair<size_t, TDetachedLuaValue>> NumericEntries;
-        bool HasNonStringOrNumericKey = false;
-        size_t MaxNumericIndex = 0;
-        for (auto&& [k, v] : o.as<sol::table>()) {
-            if (k.is<std::string>()) {
-                ObjectOut.emplace(k.as<std::string>(), std::make_shared<TDetachedLuaValue>(std::move(Freeze(v, depth + 1))));
-                continue;
-            }
-            // Thanks to lua handling arrays in a weird way, and because they can also be sparse, this weird code is needed.
-            if (k.get_type() == sol::type::number) {
-                const double NumericKey = k.as<double>();
-                const size_t CandidateIndex = static_cast<size_t>(NumericKey);
-                // unsure if we need to do this, or if we can do the same int check we do in other places, but this works well
-                const bool IsPositiveInteger = std::isfinite(NumericKey)
-                    && NumericKey >= 1.0
-                    && std::fabs(NumericKey - static_cast<double>(CandidateIndex)) <= std::numeric_limits<double>::epsilon();
-                if (IsPositiveInteger) {
-                    const auto Index = CandidateIndex;
-                    MaxNumericIndex = std::max(MaxNumericIndex, Index);
-                    NumericEntries.emplace_back(Index, Freeze(v, depth + 1));
-                    continue;
-                }
-            }
-            HasNonStringOrNumericKey = true;
-        }
-        // Pure numeric-keyed tables are reconstructed as Lua arrays (1-based indexes).
-        // This preserves array semantics across this serialization boundary :^)
-        if (!NumericEntries.empty() && ObjectOut.empty() && !HasNonStringOrNumericKey) {
-            TDetachedLuaValue::Array ArrayOut(MaxNumericIndex);
-            for (const auto& [Index, Value] : NumericEntries) {
-                if (Index > 0 && Index <= ArrayOut.size()) {
-                    ArrayOut[Index - 1] = Value;
-                }
-            }
-            return { { std::move(ArrayOut) } };
-        }
-        return { { std::move(ObjectOut) } };
-    }
-    default:
-        throw std::runtime_error("unsupported Lua type for cross-thread snapshot");
-    }
-}
-void TLuaResult::MarkAsReady() {
-    mReady = true;
-    mReadyCondition.notify_all();
-}
-
-void TLuaResult::WaitUntilReady() {
-    std::unique_lock Lock(mMutex);
-    while (!mReady)
-        mReadyCondition.wait_for(Lock, std::chrono::milliseconds(50),
-            [this] {
-                return mReady;
-            });
-}
-
-TEST_CASE("TLuaInStateResult MarkReadyError(string) marks ready and wakes waiters") {
-    TLuaVoidResult result("state_local");
-    std::atomic<bool> waiterDone { false };
-
-    auto waiter = std::thread([&] {
-        result.WaitUntilReady();
-        waiterDone.store(true, std::memory_order_release);
-    });
-
-    std::this_thread::sleep_for(std::chrono::milliseconds(20));
-    CHECK_FALSE(waiterDone.load(std::memory_order_acquire));
-
-    result.MarkReadyError(std::string("boom"));
-    waiter.join();
-
-    CHECK(result.IsReady());
-    const auto snapshot = result.GetSnapshot();
-    CHECK(snapshot.Ready);
-    CHECK(snapshot.Error);
-    CHECK(snapshot.ErrorMessage == "boom");
-    CHECK(snapshot.StateId == "state_local");
-}
-
-TEST_CASE("TLuaInStateResult MarkReadySuccess clears error state") {
-    TLuaVoidResult result("state_local_success");
-    result.MarkReadySuccess();
-
-    CHECK(result.IsReady());
-    CHECK_FALSE(result.IsError());
-    const auto snapshot = result.GetSnapshot();
-    CHECK(snapshot.Ready);
-    CHECK_FALSE(snapshot.Error);
-    CHECK(snapshot.ErrorMessage.empty());
-}
-
-TEST_CASE("TLuaResult MarkReadyError(string) marks ready and wakes waiters") {
-    TLuaResult result("state_a", "fn_a");
-    std::atomic<bool> waiterDone { false };
-
-    auto waiter = std::thread([&] {
-        result.WaitUntilReady();
-        waiterDone.store(true, std::memory_order_release);
-    });
-
-    std::this_thread::sleep_for(std::chrono::milliseconds(20));
-    CHECK_FALSE(waiterDone.load(std::memory_order_acquire));
-
-    result.MarkReadyError(std::string("boom"));
-    waiter.join();
-
-    CHECK(result.IsReady());
-    const auto snapshot = result.GetDetachedSnapshot();
-    CHECK(snapshot.Ready);
-    CHECK(snapshot.Error);
-    CHECK(snapshot.ErrorMessage == "boom");
-    CHECK(snapshot.StateId == "state_a");
-    CHECK(snapshot.Function == "fn_a");
-}
-
-TEST_CASE("TLuaResult detached snapshot freezes nested string-keyed tables") {
-    sol::state lua;
-    TLuaResult result("state_table", "fn_table");
-    lua.open_libraries(sol::lib::base);
-
-    auto outer = lua.create_table();
-    auto inner = lua.create_table();
-    inner["k"] = std::string("v");
-
-    outer["flag"] = true;
-    outer["msg"] = std::string("hello");
-    outer["inner"] = inner;
-    outer[1] = std::string("ignored_numeric_key");
-
-    result.MarkReadySuccess(sol::make_object(lua.lua_state(), outer));
-    const auto detached = result.GetDetachedSnapshot();
-
-    CHECK(detached.Ready);
-    CHECK_FALSE(detached.Error);
-    const auto* object = std::get_if<TDetachedLuaValue::Object>(&detached.Result.V);
-    REQUIRE(object != nullptr);
-
-    CHECK(object->contains("flag"));
-    CHECK(object->contains("msg"));
-    CHECK(object->contains("inner"));
-    CHECK_FALSE(object->contains("1"));
-
-    const auto* flag = std::get_if<bool>(&object->at("flag")->V);
-    REQUIRE(flag != nullptr);
-    CHECK(*flag);
-
-    const auto* msg = std::get_if<std::string>(&object->at("msg")->V);
-    REQUIRE(msg != nullptr);
-    CHECK(*msg == "hello");
-
-    const auto* innerObj = std::get_if<TDetachedLuaValue::Object>(&object->at("inner")->V);
-    REQUIRE(innerObj != nullptr);
-    REQUIRE(innerObj->contains("k"));
-    const auto* innerValue = std::get_if<std::string>(&innerObj->at("k")->V);
-    REQUIRE(innerValue != nullptr);
-    CHECK(*innerValue == "v");
-}
-
-TEST_CASE("TLuaResult detached snapshot preserves numeric array tables") {
-    sol::state lua;
-    TLuaResult result("state_array", "fn_array");
-    lua.open_libraries(sol::lib::base);
-
-    auto arr = lua.create_table();
-    arr[1] = std::string("a");
-    arr[2] = 42;
-    arr[4] = true; // keep sparse indexes
-
-    result.MarkReadySuccess(sol::make_object(lua.lua_state(), arr));
-    const auto detached = result.GetDetachedSnapshot();
-
-    CHECK(detached.Ready);
-    CHECK_FALSE(detached.Error);
-
-    const auto* array = std::get_if<TDetachedLuaValue::Array>(&detached.Result.V);
-    REQUIRE(array != nullptr);
-    REQUIRE(array->size() == 4);
-
-    const auto* v1 = std::get_if<std::string>(&(*array)[0].V);
-    REQUIRE(v1 != nullptr);
-    CHECK(*v1 == "a");
-
-    const auto* v2 = std::get_if<int>(&(*array)[1].V);
-    REQUIRE(v2 != nullptr);
-    CHECK(*v2 == 42);
-
-    CHECK(std::holds_alternative<std::monostate>((*array)[2].V));
-
-    const auto* v4 = std::get_if<bool>(&(*array)[3].V);
-    REQUIRE(v4 != nullptr);
-    CHECK(*v4);
-}
-
-TEST_CASE("TLuaResult MarkReadySuccess throws on unsupported Lua function value") {
-    sol::state lua;
-    TLuaResult result("state_fn", "fn_fn");
-    lua.open_libraries(sol::lib::base);
-    lua["f"] = [] { return 1; };
-    const sol::table globals = lua.globals();
-    const sol::protected_function fn = globals.get<sol::protected_function>("f");
-    const sol::object fnObj = sol::make_object(lua.lua_state(), fn);
-
-    CHECK_THROWS_AS(result.MarkReadySuccess(fnObj), std::runtime_error);
-    CHECK_FALSE(result.IsReady());
-}
-
-TEST_CASE("TLuaResult MarkReadySuccessNoResult stores monostate") {
-    TLuaResult result("state_empty", "fn_empty");
-    result.MarkReadySuccessNoResult();
-
-    CHECK(result.IsReady());
-    const auto snapshot = result.GetDetachedSnapshot();
-    CHECK_FALSE(snapshot.Error);
-    CHECK(std::holds_alternative<std::monostate>(snapshot.Result.V));
-}

src/TPPSMonitor.cpp

@@ -55,8 +55,8 @@ void TPPSMonitor::operator()() {
             std::shared_ptr<TClient> c;
             {
                 ReadLock Lock(mServer.GetClientMutex());
-                if (auto Locked = ClientPtr.lock()) {
+                if (!ClientPtr.expired()) {
-                    c = std::move(Locked);
+                    c = ClientPtr.lock();
                 } else
                     return true;
             }
@@ -76,7 +76,7 @@ void TPPSMonitor::operator()() {
             return true;
         });
         for (auto& ClientToKick : TimedOutClients) {
-            Network().DisconnectClient(*ClientToKick, "Timeout");
+            ClientToKick->Disconnect("Timeout");
         }
         TimedOutClients.clear();
         if (C == 0 || mInternalPPS == 0) {

src/TPluginMonitor.cpp

@@ -57,27 +57,21 @@ void TPluginMonitor::operator()() {
                     mFileTimes[Pair.first] = CurrentTime;
                     // grandparent of the path should be Resources/Server
                     if (fs::equivalent(fs::path(Pair.first).parent_path().parent_path(), mPath)) {
-                        if (LowerString(fs::path(Pair.first).extension().string()) == ".lua") {
+                        beammp_infof("File \"{}\" changed, reloading", Pair.first);
-                            beammp_infof("File \"{}\" changed, reloading", Pair.first);
+                        // is in root folder, so reload
-                            // is in root folder, so reload
+                        std::ifstream FileStream(Pair.first, std::ios::in | std::ios::binary);
-                            std::ifstream FileStream(Pair.first, std::ios::in | std::ios::binary);
+                        auto Size = std::filesystem::file_size(Pair.first);
-                            auto Size = std::filesystem::file_size(Pair.first);
+                        auto Contents = std::make_shared<std::string>();
-                            auto Contents = std::make_shared<std::string>();
+                        Contents->resize(Size);
-                            Contents->resize(Size);
+                        FileStream.read(Contents->data(), Contents->size());
-                            FileStream.read(Contents->data(), Contents->size());
+                        TLuaChunk Chunk(Contents, Pair.first, fs::path(Pair.first).parent_path().string());
-                            TLuaChunk Chunk(Contents, Pair.first, fs::path(Pair.first).parent_path().string());
+                        auto StateID = mEngine->GetStateIDForPlugin(fs::path(Pair.first).parent_path());
-                            auto StateID = mEngine->GetStateIDForPlugin(fs::path(Pair.first).parent_path());
+                        auto Res = mEngine->EnqueueScript(StateID, Chunk);
-                            auto Res = mEngine->EnqueueScript(StateID, Chunk);
+                        Res->WaitUntilReady();
-                            Res->WaitUntilReady();
+                        if (Res->Error) {
-                            if (Res->IsError()) {
+                            beammp_lua_errorf("Error while hot-reloading \"{}\": {}", Pair.first, Res->ErrorMessage);
-                                auto Snapshot = Res->GetSnapshot();
-                                beammp_lua_errorf("Error while hot-reloading \"{}\": {}", Pair.first, Snapshot.ErrorMessage);
-                            } else {
-                                mEngine->ReportErrors(mEngine->TriggerLocalEvent(StateID, "onInit"));
-                                mEngine->ReportErrors(mEngine->TriggerEvent("onFileChanged", "", Pair.first));
-                            }
                         } else {
-                            beammp_debugf("File \"{}\" changed, not reloading because it's not a lua file. Triggering 'onFileChanged' event instead", Pair.first);
+                            mEngine->ReportErrors(mEngine->TriggerLocalEvent(StateID, "onInit"));
                             mEngine->ReportErrors(mEngine->TriggerEvent("onFileChanged", "", Pair.first));
                         }
                     } else {

src/TResourceManager.cpp

@@ -58,58 +58,22 @@ TResourceManager::TResourceManager() {
     Application::SetSubsystemStatus("ResourceManager", Application::Status::Good);
 }
 
+std::string TResourceManager::NewFileList() const {
+    return mMods.dump();
+}
 void TResourceManager::RefreshFiles() {
     mMods.clear();
     std::unique_lock Lock(mModsMutex);
 
     std::string Path = Application::Settings.getAsString(Settings::Key::General_ResourceFolder) + "/Client";
-
-    nlohmann::json modsDB;
-
-    if (std::filesystem::exists(Path + "/mods.json")) {
-        try {
-            std::ifstream stream(Path + "/mods.json");
-
-            stream >> modsDB;
-
-            stream.close();
-        } catch (const std::exception& e) {
-            beammp_errorf("Failed to load mods.json: {}", e.what());
-        }
-    }
-
     for (const auto& entry : fs::directory_iterator(Path)) {
         std::string File(entry.path().string());
 
-        if (entry.path().filename().string() == "mods.json") {
-            continue;
-        }
-
         if (entry.path().extension() != ".zip" || std::filesystem::is_directory(entry.path())) {
             beammp_warnf("'{}' is not a ZIP file and will be ignored", File);
             continue;
         }
 
-        if (modsDB.contains(entry.path().filename().string())) {
-            auto& dbEntry = modsDB[entry.path().filename().string()];
-            if (entry.last_write_time().time_since_epoch().count() > dbEntry["lastwrite"] || std::filesystem::file_size(File) != dbEntry["filesize"].get<size_t>()) {
-                beammp_infof("File '{}' has been modified, rehashing", File);
-            } else {
-                dbEntry["exists"] = true;
-
-                mMods.push_back(nlohmann::json {
-                    { "file_name", std::filesystem::path(File).filename() },
-                    { "file_size", std::filesystem::file_size(File) },
-                    { "hash_algorithm", "sha256" },
-                    { "hash", dbEntry["hash"] },
-                    { "protected", dbEntry["protected"] } });
-
-                beammp_debugf("Mod '{}' loaded from cache", File);
-
-                continue;
-            }
-        }
-
         try {
             EVP_MD_CTX* mdctx;
             const EVP_MD* md;
@@ -169,73 +133,9 @@ void TResourceManager::RefreshFiles() {
                 { "file_size", std::filesystem::file_size(File) },
                 { "hash_algorithm", "sha256" },
                 { "hash", result },
-                { "protected", false } });
+            });
-
-            modsDB[std::filesystem::path(File).filename().string()] = {
-                { "lastwrite", entry.last_write_time().time_since_epoch().count() },
-                { "hash", result },
-                { "filesize", std::filesystem::file_size(File) },
-                { "protected", false },
-                { "exists", true }
-            };
-
         } catch (const std::exception& e) {
             beammp_errorf("Sha256 hashing of '{}' failed: {}", File, e.what());
         }
     }
-
-    for (auto it = modsDB.begin(); it != modsDB.end();) {
-        if (!it.value().contains("exists")) {
-            it = modsDB.erase(it);
-        } else {
-            it.value().erase("exists");
-            ++it;
-        }
-    }
-
-    try {
-        std::ofstream stream(Path + "/mods.json");
-
-        stream << modsDB.dump(4);
-
-        stream.close();
-    } catch (std::exception& e) {
-        beammp_error("Failed to update mod DB: " + std::string(e.what()));
-    }
-}
-
-void TResourceManager::SetProtected(const std::string& ModName, bool Protected) {
-    std::unique_lock Lock(mModsMutex);
-
-    for (auto& mod : mMods) {
-        if (mod["file_name"].get<std::string>() == ModName) {
-            mod["protected"] = Protected;
-            break;
-        }
-    }
-
-    auto modsDBPath = Application::Settings.getAsString(Settings::Key::General_ResourceFolder) + "/Client/mods.json";
-
-    if (std::filesystem::exists(modsDBPath)) {
-        try {
-            nlohmann::json modsDB;
-
-            std::fstream stream(modsDBPath);
-
-            stream >> modsDB;
-
-            if (modsDB.contains(ModName)) {
-                modsDB[ModName]["protected"] = Protected;
-            }
-
-            stream.clear();
-            stream.seekp(0, std::ios::beg);
-
-            stream << modsDB.dump(4);
-
-            stream.close();
-        } catch (const std::exception& e) {
-            beammp_errorf("Failed to update mods.json: {}", e.what());
-        }
-    }
 }

src/TServer.cpp

@@ -28,7 +28,6 @@
 #include <any>
 #include <optional>
 #include <sstream>
-#include <utility>
 
 #include <nlohmann/json.hpp>
 
@@ -54,6 +53,7 @@ static std::optional<std::pair<int, int>> GetPidVid(const std::string& str) {
     }
     return std::nullopt;
 }
+
 TEST_CASE("GetPidVid") {
     SUBCASE("Valid singledigit") {
         const auto MaybePidVid = GetPidVid("0-1");
@@ -120,6 +120,7 @@ TEST_CASE("GetPidVid") {
         CHECK(!MaybePidVid);
     }
 }
+
 TServer::TServer(const std::vector<std::string_view>& Arguments) {
     beammp_info("BeamMP Server v" + Application::ServerVersionString());
     Application::SetSubsystemStatus("Server", Application::Status::Starting);
@@ -127,15 +128,19 @@ TServer::TServer(const std::vector<std::string_view>& Arguments) {
 }
 
 void TServer::RemoveClient(const std::weak_ptr<TClient>& WeakClientPtr) {
-    auto LockedClientPtr = WeakClientPtr.lock();
+    std::shared_ptr<TClient> LockedClientPtr { nullptr };
-    if (!LockedClientPtr) {
+    try {
+        LockedClientPtr = WeakClientPtr.lock();
+    } catch (const std::exception&) {
+        // silently fail, as there's nothing to do
         return;
     }
+    beammp_assert(LockedClientPtr != nullptr);
     TClient& Client = *LockedClientPtr;
     beammp_debug("removing client " + Client.GetName() + " (" + std::to_string(ClientCount()) + ")");
     Client.ClearCars();
     WriteLock Lock(mClientsMutex);
-    mClients.erase(LockedClientPtr);
+    mClients.erase(WeakClientPtr.lock());
 }
 
 void TServer::ForEachClient(const std::function<bool(std::weak_ptr<TClient>)>& Fn) {
@@ -156,23 +161,21 @@ size_t TServer::ClientCount() const {
     return mClients.size();
 }
 
-void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uint8_t>&& Packet, TPPSMonitor& PPSMonitor, TNetwork& Network, bool udp) {
+void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uint8_t>&& Packet, TPPSMonitor& PPSMonitor, TNetwork& Network) {
     constexpr std::string_view ABG = "ABG:";
     if (Packet.size() >= ABG.size() && std::equal(Packet.begin(), Packet.begin() + ABG.size(), ABG.begin(), ABG.end())) {
         Packet.erase(Packet.begin(), Packet.begin() + ABG.size());
         try {
             Packet = DeComp(Packet);
         } catch (const InvalidDataError& ) {
-            if (auto LockedClient = Client.lock()) {
+            auto LockedClient = Client.lock();
-                beammp_errorf("Failed to decompress packet from client {}. The client sent invalid data and will now be disconnected.", LockedClient->GetID());
+            beammp_errorf("Failed to decompress packet from client {}. The client sent invalid data and will now be disconnected.", LockedClient->GetID());
-                Network.ClientKick(*LockedClient, "Sent invalid compressed packet (this is likely a bug on your end)");
+            Network.ClientKick(*LockedClient, "Sent invalid compressed packet (this is likely a bug on your end)");
-            }
             return;
         } catch (const std::runtime_error& e) {
-            if (auto LockedClient = Client.lock()) {
+            auto LockedClient = Client.lock();
-                beammp_errorf("Failed to decompress packet from client {}: {}. The server might be out of RAM! The client will now be disconnected.", LockedClient->GetID(), e.what());
+            beammp_errorf("Failed to decompress packet from client {}: {}. The server might be out of RAM! The client will now be disconnected.", LockedClient->GetID(), e.what());
-                Network.ClientKick(*LockedClient, "Decompression failed (likely a server-side problem)");
+            Network.ClientKick(*LockedClient, "Decompression failed (likely a server-side problem)");
-            }
             return;
         }
     }
@@ -180,10 +183,10 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
         return;
     }
 
-    auto LockedClient = Client.lock();
+    if (Client.expired()) {
-    if (!LockedClient) {
         return;
     }
+    auto LockedClient = Client.lock();
 
     std::any Res;
     char Code = Packet.at(0);
@@ -192,29 +195,12 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
 
     // V to Y
     if (Code <= 89 && Code >= 86) {
-        int PID = -1;
-        int VID = -1;
-
-        auto pidVidPart = StringPacket.substr(3);
-        auto MaybePidVid = GetPidVid(pidVidPart.substr(0, pidVidPart.find(':')));
-        if (MaybePidVid) {
-            std::tie(PID, VID) = MaybePidVid.value();
-        }
-
-        if (PID == -1 || VID == -1 || PID != LockedClient->GetID()) {
-            return;
-        }
-
         PPSMonitor.IncrementInternalPPS();
         Network.SendToAll(LockedClient.get(), Packet, false, false);
         return;
     }
     switch (Code) {
     case 'H': // initial connection
-        if (udp) {
-            beammp_debugf("Received 'H' packet over UDP from client '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
-            return;
-        }
         if (!Network.SyncClient(Client)) {
             // TODO handle
         }
@@ -222,26 +208,18 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
     case 'p':
         if (!Network.Respond(*LockedClient, StringToVector("p"), false)) {
             // failed to send
-            Network.DisconnectClient(*LockedClient, "Failed to send ping");
+            LockedClient->Disconnect("Failed to send ping");
         } else {
             Network.UpdatePlayer(*LockedClient);
         }
         return;
     case 'O':
-        if (udp) {
-            beammp_debugf("Received 'O' packet over UDP from client '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
-            return;
-        }
         if (Packet.size() > 1000) {
             beammp_debug(("Received data from: ") + LockedClient->GetName() + (" Size: ") + std::to_string(Packet.size()));
         }
         ParseVehicle(*LockedClient, StringPacket, Network);
         return;
     case 'C': {
-        if (udp) {
-            beammp_debugf("Received 'C' packet over UDP from client '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
-            return;
-        }
         if (Packet.size() < 4 || std::find(Packet.begin() + 3, Packet.end(), ':') == Packet.end())
             break;
         const auto PacketAsString = std::string(reinterpret_cast<const char*>(Packet.data()), Packet.size());
@@ -254,24 +232,14 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
             beammp_debugf("Empty chat message received from '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
             return;
         }
-        if (Message.size() > 500) {
-           beammp_debugf("Chat message too long from '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
-           return;
-        }
         auto Futures = LuaAPI::MP::Engine->TriggerEvent("onChatMessage", "", LockedClient->GetID(), LockedClient->GetName(), Message);
         TLuaEngine::WaitForAll(Futures);
         LogChatMessage(LockedClient->GetName(), LockedClient->GetID(), PacketAsString.substr(PacketAsString.find(':', 3) + 1));
         bool Rejected = std::any_of(Futures.begin(), Futures.end(),
             [](const std::shared_ptr<TLuaResult>& Elem) {
-                auto Snapshot = Elem->GetDetachedSnapshot();
+                return !Elem->Error
-                if (Snapshot.Error) {
+                    && Elem->Result.is<int>()
-                    return false;
+                    && bool(Elem->Result.as<int>());
-                }
-                const int* MaybeInt = std::get_if<int>(&Snapshot.Result.V);
-                if (MaybeInt == nullptr) {
-                    return false;
-                }
-                return bool(*MaybeInt);
             });
         if (!Rejected) {
             std::string SanitizedPacket = fmt::format("C:{}: {}", LockedClient->GetName(), Message);
@@ -282,35 +250,16 @@ void TServer::GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uin
         return;
     }
     case 'E':
-        if (udp) {
-            beammp_debugf("Received 'E' packet over UDP from client '{}' ({}), ignoring it", LockedClient->GetName(), LockedClient->GetID());
-            return;
-        }
         HandleEvent(*LockedClient, StringPacket);
         return;
     case 'N':
         Network.SendToAll(LockedClient.get(), Packet, false, true);
         return;
-    case 'Z': { // position packet
+    case 'Z': // position packet
         PPSMonitor.IncrementInternalPPS();
-
-        int PID = -1;
-        int VID = -1;
-
-        auto pidVidPart = StringPacket.substr(3);
-        auto MaybePidVid = GetPidVid(pidVidPart.substr(0, pidVidPart.find(':')));
-        if (MaybePidVid) {
-            std::tie(PID, VID) = MaybePidVid.value();
-        }
-
-        if (PID == -1 || VID == -1 || PID != LockedClient->GetID()) {
-            return;
-        }
-
         Network.SendToAll(LockedClient.get(), Packet, false, false);
         HandlePosition(*LockedClient, StringPacket);
         return;
-    }
     default:
         return;
     }
@@ -329,15 +278,6 @@ void TServer::HandleEvent(TClient& c, const std::string& RawData) {
     }
     std::string Name = RawData.substr(2, NameDataSep - 2);
     std::string Data = RawData.substr(NameDataSep + 1);
-
-    std::vector<std::string> exclude = {"onInit", "onFileChanged","onVehicleDeleted","onConsoleInput","onPlayerAuth","postPlayerAuth", "onPlayerDisconnect",
-    "onPlayerConnecting","onPlayerJoining","onPlayerJoin","onChatMessage","postChatMessage","onVehicleSpawn","postVehicleSpawn","onVehicleEdited", "postVehicleEdited",
-    "onVehicleReset","onVehiclePaintChanged","onShutdown"};
-
-    if (std::ranges::find(exclude, Name) != exclude.end()) {
-        beammp_debugf("Excluded event triggered by client '{}' ({}): '{}', ignoring.", c.GetName(), c.GetID(), Name);
-        return;
-    }
     LuaAPI::MP::Engine->ReportErrors(LuaAPI::MP::Engine->TriggerEvent(Name, "", c.GetID(), Data));
 }
 
@@ -384,21 +324,12 @@ void TServer::ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Networ
             TLuaEngine::WaitForAll(Futures);
             bool ShouldntSpawn = std::any_of(Futures.begin(), Futures.end(),
                 [](const std::shared_ptr<TLuaResult>& Result) {
-                    auto Snapshot = Result->GetDetachedSnapshot();
+                    return !Result->Error && Result->Result.is<int>() && Result->Result.as<int>() != 0;
-                    if (Snapshot.Error) {
-                        return false;
-                    }
-                    const int* MaybeInt = std::get_if<int>(&Snapshot.Result.V);
-                    if (MaybeInt == nullptr) {
-                        return false;
-                    }
-                    return *MaybeInt != 0;
                 });
 
             bool SpawnConfirmed = false;
-            auto CarJsonDoc = nlohmann::json::parse(CarJson, nullptr, false);
+            if (ShouldSpawn(c, CarJson, CarID) && !ShouldntSpawn) {
-            if (ShouldSpawn(c, CarJson, CarID) && !ShouldntSpawn && !CarJsonDoc.is_discarded()) {
+                c.AddNewCar(CarID, Packet);
-                c.AddNewCar(CarID, CarJsonDoc);
                 Network.SendToAll(nullptr, StringToVector(Packet), true, true);
                 SpawnConfirmed = true;
             } else {
@@ -429,15 +360,7 @@ void TServer::ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Networ
             TLuaEngine::WaitForAll(Futures);
             bool ShouldntAllow = std::any_of(Futures.begin(), Futures.end(),
                 [](const std::shared_ptr<TLuaResult>& Result) {
-                    auto Snapshot = Result->GetDetachedSnapshot();
+                    return !Result->Error && Result->Result.is<int>() && Result->Result.as<int>() != 0;
-                    if (Snapshot.Error) {
-                        return false;
-                    }
-                    const int* MaybeInt = std::get_if<int>(&Snapshot.Result.V);
-                    if (MaybeInt == nullptr) {
-                        return false;
-                    }
-                    return *MaybeInt != 0;
                 });
 
             auto FoundPos = Packet.find('{');
@@ -491,13 +414,7 @@ void TServer::ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Networ
         }
 
         if (PID != -1 && VID != -1 && PID == c.GetID()) {
-            auto BracketPos = Data.find('{');
+            Data = Data.substr(Data.find('{'));
-            if (BracketPos == std::string::npos) {
-                beammp_debugf("Invalid 'Or' packet body from client {}", c.GetID());
-                return;
-            }
-
-            Data = Data.substr(BracketPos);
             LuaAPI::MP::Engine->ReportErrors(LuaAPI::MP::Engine->TriggerEvent("onVehicleReset", "", c.GetID(), VID, Data));
             Network.SendToAll(&c, StringToVector(Packet), false, true);
         }
@@ -526,27 +443,9 @@ void TServer::ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Networ
         }
 
         if (PID != -1 && VID != -1 && PID == c.GetID()) {
-            auto BracketPos = Data.find('[');
+            Data = Data.substr(Data.find('['));
-            if (BracketPos == std::string::npos) {
-                beammp_debugf("Invalid 'Op' packet body from client {}", c.GetID());
-                return;
-            }
-
-            Data = Data.substr(BracketPos);
-
             LuaAPI::MP::Engine->ReportErrors(LuaAPI::MP::Engine->TriggerEvent("onVehiclePaintChanged", "", c.GetID(), VID, Data));
             Network.SendToAll(&c, StringToVector(Packet), false, true);
-
-            auto CarData = c.GetCarData(VID);
-            if (CarData == nlohmann::detail::value_t::null)
-                return;
-
-            if (CarData.contains("vcf") && CarData.at("vcf").is_object())
-                if (CarData.at("vcf").contains("paints") && CarData.at("vcf").at("paints").is_array()) {
-                    CarData.at("vcf")["paints"] = nlohmann::json::parse(Data);
-                    c.SetCarData(VID, CarData);
-                }
-
         }
         return;
     }
@@ -562,22 +461,42 @@ void TServer::Apply(TClient& c, int VID, const std::string& pckt) {
         beammp_error("Malformed packet received, no '{' found");
         return;
     }
-
     std::string Packet = pckt.substr(FoundPos);
-    nlohmann::json VD = c.GetCarData(VID);
+    std::string VD = c.GetCarData(VID);
-    if (VD == nlohmann::detail::value_t::null) {
+    if (VD.empty()) {
         beammp_error("Tried to apply change to vehicle that does not exist");
         return;
     }
+    std::string Header = VD.substr(0, VD.find('{'));
 
-    nlohmann::json Pack = nlohmann::json::parse(Packet, nullptr, false);
+    FoundPos = VD.find('{');
-
+    if (FoundPos == std::string::npos) {
-    if (Pack.is_discarded()) {
+        return;
+    }
+    VD = VD.substr(FoundPos);
+    rapidjson::Document Veh, Pack;
+    Veh.Parse(VD.c_str());
+    if (Veh.HasParseError()) {
+        beammp_error("Could not get vehicle config!");
+        return;
+    }
+    Pack.Parse(Packet.c_str());
+    if (Pack.HasParseError() || Pack.IsNull()) {
         beammp_error("Could not get active vehicle config!");
         return;
     }
 
-    c.SetCarData(VID, Pack);
+    for (auto& M : Pack.GetObject()) {
+        if (Veh[M.name].IsNull()) {
+            Veh.AddMember(M.name, M.value, Veh.GetAllocator());
+        } else {
+            Veh[M.name] = Pack[M.name];
+        }
+    }
+    rapidjson::StringBuffer Buffer;
+    rapidjson::Writer<rapidjson::StringBuffer> writer(Buffer);
+    Veh.Accept(writer);
+    c.SetCarData(VID, Header + Buffer.GetString());
 }
 
 void TServer::InsertClient(const std::shared_ptr<TClient>& NewClient) {

src/VehicleData.cpp

@@ -21,7 +21,7 @@
 #include "Common.h"
 #include <utility>
 
-TVehicleData::TVehicleData(int ID, nlohmann::json Data)
+TVehicleData::TVehicleData(int ID, std::string Data)
     : mID(ID)
     , mData(std::move(Data)) {
     beammp_trace("vehicle " + std::to_string(mID) + " constructed");
@@ -30,7 +30,3 @@ TVehicleData::TVehicleData(int ID, nlohmann::json Data)
 TVehicleData::~TVehicleData() {
     beammp_trace("vehicle " + std::to_string(mID) + " destroyed");
 }
-
-std::string TVehicleData::DataAsPacket(const std::string& Role, const std::string& Name, const int ID) const {
-    return "Os:" + Role + ":" + Name + ":" + std::to_string(ID) + "-" + std::to_string(this->mID) + ":" + this->mData.dump();
-}

src/main.cpp

@@ -17,7 +17,6 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 #include "ArgsParser.h"
-#include "Client.h"
 #include "Common.h"
 #include "Http.h"
 #include "LuaAPI.h"
@@ -176,9 +175,17 @@ int BeamMPServerMain(MainArguments Arguments) {
         Application::SetSubsystemStatus("Main", Application::Status::ShuttingDown);
         Shutdown = true;
     });
+    Application::RegisterShutdownHandler([] {
+        auto Futures = LuaAPI::MP::Engine->TriggerEvent("onShutdown", "");
+        TLuaEngine::WaitForAll(Futures, std::chrono::seconds(5));
+    });
 
     TServer Server(Arguments.List);
 
+    auto LuaEngine = std::make_shared<TLuaEngine>();
+    LuaEngine->SetServer(&Server);
+    Application::Console().InitializeLuaConsole(*LuaEngine);
+
     RegisterThread("Main");
 
     beammp_trace("Running in debug mode on a debug build");
@@ -187,30 +194,13 @@ int BeamMPServerMain(MainArguments Arguments) {
     TPPSMonitor PPSMonitor(Server);
     THeartbeatThread Heartbeat(ResourceManager, Server);
     TNetwork Network(Server, PPSMonitor, ResourceManager);
-
-    auto LuaEngine = std::make_shared<TLuaEngine>();
-    LuaEngine->SetServer(&Server);
-    Application::Console().InitializeLuaConsole(*LuaEngine);
     LuaEngine->SetNetwork(&Network);
     PPSMonitor.SetNetwork(Network);
     Application::CheckForUpdates();
 
     TPluginMonitor PluginMonitor(fs::path(Application::Settings.getAsString(Settings::Key::General_ResourceFolder)) / "Server", LuaEngine);
 
-    Application::RegisterShutdownHandler([] {
+    Application::SetSubsystemStatus("Main", Application::Status::Good);
-        auto Futures = LuaAPI::MP::Engine->TriggerEvent("onShutdown", "");
-        TLuaEngine::WaitForAll(Futures, std::chrono::seconds(5));
-    });
-    Application::RegisterShutdownHandler([&Server, &Network] {
-        beammp_debug("Kicking all players due to shutdown");
-        Server.ForEachClient([&Network](std::weak_ptr<TClient> client) -> bool {
-            if (!client.expired()) {
-                Network.ClientKick(*client.lock(), "Server shutdown");
-            }
-            return true;
-        });
-    });
-
     RegisterThread("Main(Waiting)");
 
     std::set<std::string> IgnoreSubsystems {
@@ -225,10 +215,6 @@ int BeamMPServerMain(MainArguments Arguments) {
             std::string SystemsBadList {};
             auto Statuses = Application::GetSubsystemStatuses();
             for (const auto& NameStatusPair : Statuses) {
-                if (NameStatusPair.first == "Main") {
-                    continue;
-                }
-
                 if (IgnoreSubsystems.count(NameStatusPair.first) > 0) {
                     continue; // ignore
                 }
@@ -242,8 +228,6 @@ int BeamMPServerMain(MainArguments Arguments) {
             // remove ", "
             SystemsBadList = SystemsBadList.substr(0, SystemsBadList.size() - 2);
             if (FullyStarted) {
-                Application::SetSubsystemStatus("Main", Application::Status::Good);
-
                 if (!WithErrors) {
                     beammp_info("ALL SYSTEMS STARTED SUCCESSFULLY, EVERYTHING IS OKAY");
                 } else {

vcpkg.json

@@ -14,18 +14,6 @@
     "openssl",
     "rapidjson",
     "sol2",
-    "curl",
+    "curl"
-    "lua"
+  ]
-  ],
-  "overrides": [
-    {
-      "name": "sol2",
-      "version": "3.3.1"
-    },
-    {
-      "name": "lua",
-      "version": "5.3.5#6"
-    }
-  ],
-  "builtin-baseline": "5bf0c55239da398b8c6f450818c9e28d36bf9966"
 }