Destroy client, network sockets and other objects on shutdown.

dll/dll.cpp

@@ -128,13 +128,26 @@ STEAMAPI_API ISteamClient *g_pSteamClientGameServer;
 ISteamClient *g_pSteamClientGameServer;
 #endif
 
+static Steam_Client *client;
 Steam_Client *get_steam_client()
 {
     std::lock_guard<std::recursive_mutex> lock(global_mutex);
-    static Steam_Client *client = new Steam_Client();
+    if (!client) {
+        client = new Steam_Client();
+    }
+
     return client;
 }
 
+void destroy_client()
+{
+    std::lock_guard<std::recursive_mutex> lock(global_mutex);
+    if (client) {
+        delete client;
+        client = NULL;
+    }
+}
+
 Steam_Client *get_steam_client_old()
 {
     return get_steam_client();
@@ -298,6 +311,9 @@ STEAMAPI_API void S_CALLTYPE SteamAPI_Shutdown()
     old_video_instance = NULL;
     old_parental_instance = NULL;
     old_unified_instance = NULL;
+    if (global_counter == 0) {
+        destroy_client();
+    }
 }
 
 // SteamAPI_RestartAppIfNecessary ensures that your executable was launched through Steam.
@@ -607,11 +623,14 @@ STEAMAPI_API ISteamClient *SteamGameServerClient();
 STEAMAPI_API steam_bool S_CALLTYPE SteamInternal_GameServer_Init( uint32 unIP, uint16 usPort, uint16 usGamePort, uint16 usQueryPort, EServerMode eServerMode, const char *pchVersionString )
 {
     PRINT_DEBUG("SteamInternal_GameServer_Init %u %hu %hu %hu %u %s\n", unIP, usPort, usGamePort, usQueryPort, eServerMode, pchVersionString);
-    load_old_interface_versions();
-    get_steam_client()->CreateLocalUser(&server_steam_pipe, k_EAccountTypeGameServer);
-    ++global_counter;
-    //g_pSteamClientGameServer is only used in pre 1.37 (where the interface versions are not provided by the game)
-    g_pSteamClientGameServer = SteamGameServerClient();
+    if (!server_steam_pipe) {
+        load_old_interface_versions();
+        get_steam_client()->CreateLocalUser(&server_steam_pipe, k_EAccountTypeGameServer);
+        ++global_counter;
+        //g_pSteamClientGameServer is only used in pre 1.37 (where the interface versions are not provided by the game)
+        g_pSteamClientGameServer = SteamGameServerClient();
+    }
+
     uint32 unFlags = 0;
     if (eServerMode == eServerModeAuthenticationAndSecure) unFlags = k_unServerFlagSecure;
     return get_steam_client()->steam_gameserver->InitGameServer(unIP, usGamePort, usQueryPort, unFlags, 0, pchVersionString);
@@ -678,6 +697,10 @@ STEAMAPI_API void SteamGameServer_Shutdown()
     old_gamserver_ugc_instance = NULL;
     old_gamserver_apps_instance = NULL;
     old_gamserver_masterupdater_instance = NULL;
+
+    if (global_counter == 0) {
+        destroy_client();
+    }
 }
 
 STEAMAPI_API void SteamGameServer_RunCallbacks()

dll/network.cpp

@@ -751,7 +751,6 @@ Networking::Networking(CSteamID id, uint32 appid, uint16 port, std::set<IP_PORT>
 {
     tcp_port = udp_port = port;
     own_ip = 0x7F000001;
-    alive = true;
     last_run = std::chrono::high_resolution_clock::now();
     this->appid = appid;
 
@@ -843,6 +842,21 @@ Networking::Networking(CSteamID id, uint32 appid, uint16 port, std::set<IP_PORT>
     reset_last_error();
 }
 
+Networking::~Networking()
+{
+    for (auto &c : connections) {
+        kill_tcp_socket(c.tcp_socket_incoming);
+        kill_tcp_socket(c.tcp_socket_outgoing);
+    }
+
+    for (auto &c : accepted) {
+        kill_tcp_socket(c);
+    }
+
+    kill_socket(udp_socket);
+    kill_socket(tcp_socket);
+}
+
 Common_Message Networking::create_announce(bool request)
 {
     Announce *announce = new Announce();
@@ -1265,13 +1279,3 @@ uint32 Networking::getOwnIP()
 {
     return own_ip;
 }
-
-void Networking::shutDown()
-{
-    alive = false;
-}
-
-bool Networking::isAlive()
-{
-    return alive;
-}

dll/network.h

@@ -90,7 +90,6 @@ struct Connection {
 
 class Networking {
     bool enabled = false;
-    bool alive;
     std::chrono::high_resolution_clock::time_point last_run;
     sock_t udp_socket, tcp_socket;
     uint16 udp_port, tcp_port;
@@ -126,6 +125,7 @@ public:
     //ex: 127.0.0.1 should be passed as 0x7F000001
     static std::set<IP_PORT> resolve_ip(std::string dns);
     Networking(CSteamID id, uint32 appid, uint16 port, std::set<IP_PORT> *custom_broadcasts, bool disable_sockets);
+    ~Networking();
     void addListenId(CSteamID id);
     void setAppID(uint32 appid);
     void Run();
@@ -137,9 +137,6 @@ public:
     bool setCallback(Callback_Ids id, CSteamID steam_id, void (*message_callback)(void *object, Common_Message *msg), void *object);
     uint32 getIP(CSteamID id);
     uint32 getOwnIP();
-
-    void shutDown();
-    bool isAlive();
 };
 
 #endif

dll/steam_client.cpp

@@ -18,19 +18,21 @@
 #include "steam_client.h"
 #include "settings_parser.h"
 
+static std::mutex kill_background_thread_mutex;
 static std::condition_variable kill_background_thread_cv;
-static std::atomic_bool kill_background_thread;
+static bool kill_background_thread;
 static void background_thread(Steam_Client *client)
 {
     PRINT_DEBUG("background thread starting\n");
-    std::mutex mtx;
-    std::unique_lock<std::mutex> lck(mtx);
 
     while (1) {
-        if (kill_background_thread || kill_background_thread_cv.wait_for(lck, std::chrono::seconds(1)) != std::cv_status::timeout) {
-            if (kill_background_thread) {
-                PRINT_DEBUG("background thread exit\n");
-                return;
+        {
+            std::unique_lock<std::mutex> lck(kill_background_thread_mutex);
+            if (kill_background_thread || kill_background_thread_cv.wait_for(lck, std::chrono::seconds(1)) != std::cv_status::timeout) {
+                if (kill_background_thread) {
+                    PRINT_DEBUG("background thread exit\n");
+                    return;
+                }
             }
         }
 
@@ -122,7 +124,59 @@ Steam_Client::Steam_Client()
 
 Steam_Client::~Steam_Client()
 {
-    network->shutDown();
+    delete steam_gameserver;
+    delete steam_gameserver_utils;
+    delete steam_gameserverstats;
+    delete steam_gameserver_networking;
+    delete steam_gameserver_http;
+    delete steam_gameserver_inventory;
+    delete steam_gameserver_ugc;
+    delete steam_gameserver_apps;
+    delete steam_gameserver_networking_sockets;
+    delete steam_gameserver_networking_sockets_serialized;
+    delete steam_gameserver_networking_messages;
+    delete steam_gameserver_game_coordinator;
+    delete steam_masterserver_updater;
+
+    delete steam_matchmaking;
+    delete steam_matchmaking_servers;
+    delete steam_user_stats;
+    delete steam_apps;
+    delete steam_networking;
+    delete steam_remote_storage;
+    delete steam_screenshots;
+    delete steam_http;
+    delete steam_controller;
+    delete steam_ugc;
+    delete steam_applist;
+    delete steam_music;
+    delete steam_musicremote;
+    delete steam_HTMLsurface;
+    delete steam_inventory;
+    delete steam_video;
+    delete steam_parental;
+    delete steam_networking_sockets;
+    delete steam_networking_sockets_serialized;
+    delete steam_networking_messages;
+    delete steam_game_coordinator;
+    delete steam_networking_utils;
+    delete steam_unified_messages;
+    delete steam_game_search;
+    delete steam_parties;
+    delete steam_remoteplay;
+    delete steam_tv;
+
+    delete steam_utils;
+    delete steam_friends;
+    delete steam_user;
+    delete steam_overlay;
+
+    delete run_every_runcb;
+    delete callbacks_server;
+    delete callbacks_client;
+    delete callback_results_server;
+    delete callback_results_client;
+    delete network;
 }
 
 void Steam_Client::userLogIn()
@@ -825,7 +879,9 @@ bool Steam_Client::BShutdownIfAllPipesClosed()
     if (!steam_pipes.size()) {
         bool joinable = background_keepalive.joinable();
         if (joinable) {
+            kill_background_thread_mutex.lock();
             kill_background_thread = true;
+            kill_background_thread_mutex.unlock();
             kill_background_thread_cv.notify_one();
         }