Add a notifications mutex to the overlay.

overlay_experimental/steam_overlay.cpp

@@ -300,7 +300,7 @@ void Steam_Overlay::FriendDisconnect(Friend _friend)
 
 void Steam_Overlay::AddMessageNotification(std::string const& message)
 {
-    std::lock_guard<std::recursive_mutex> lock(overlay_mutex);
+    std::lock_guard<std::recursive_mutex> lock(notifications_mutex);
     int id = find_free_notification_id(notifications);
     if (id != 0)
     {
@@ -317,7 +317,7 @@ void Steam_Overlay::AddMessageNotification(std::string const& message)
 
 void Steam_Overlay::AddAchievementNotification(nlohmann::json const& ach)
 {
-    std::lock_guard<std::recursive_mutex> lock(overlay_mutex);
+    std::lock_guard<std::recursive_mutex> lock(notifications_mutex);
     int id = find_free_notification_id(notifications);
     if (id != 0)
     {
@@ -335,7 +335,7 @@ void Steam_Overlay::AddAchievementNotification(nlohmann::json const& ach)
 
 void Steam_Overlay::AddInviteNotification(std::pair<const Friend, friend_window_state>& wnd_state)
 {
-    std::lock_guard<std::recursive_mutex> lock(overlay_mutex);
+    std::lock_guard<std::recursive_mutex> lock(notifications_mutex);
     int id = find_free_notification_id(notifications);
     if (id != 0)
     {
@@ -522,7 +522,10 @@ void Steam_Overlay::BuildNotifications(int width, int height)
 
     int font_size = ImGui::GetFontSize();
 
-    std::lock_guard<std::recursive_mutex> lock(overlay_mutex);
+    std::queue<Friend> friend_actions_temp;
+
+    {
+        std::lock_guard<std::recursive_mutex> lock(notifications_mutex);
 
         for (auto it = notifications.begin(); it != notifications.end(); ++it, ++i)
         {
@@ -564,7 +567,7 @@ void Steam_Overlay::BuildNotifications(int width, int height)
                         ImGui::TextWrapped("%s", it->message.c_str());
                         if (ImGui::Button("Join"))
                         {
-                        has_friend_action.push(it->frd->first);
+                            friend_actions_temp.push(it->frd->first);
                             it->start_time = std::chrono::seconds(0);
                         }
                     }
@@ -580,6 +583,15 @@ void Steam_Overlay::BuildNotifications(int width, int height)
         notifications.erase(std::remove_if(notifications.begin(), notifications.end(), [&now](Notification &item) {
             return (now - item.start_time) > Notification::show_time;
         }), notifications.end());
+    }
+
+    if (!friend_actions_temp.empty()) {
+        std::lock_guard<std::recursive_mutex> lock(overlay_mutex);
+        while (!friend_actions_temp.empty()) {
+            has_friend_action.push(friend_actions_temp.front());
+            friend_actions_temp.pop();
+        }
+    }
 }
 
 void Steam_Overlay::CreateFonts()

overlay_experimental/steam_overlay.h

@@ -92,6 +92,8 @@ class Steam_Overlay
     // Callback infos
     std::queue<Friend> has_friend_action;
     std::vector<Notification> notifications;
+    std::recursive_mutex notifications_mutex;
+
     bool overlay_state_changed;
 
     std::recursive_mutex overlay_mutex;