Attempt to check sync

src/hud_elements.cpp

@@ -696,6 +696,17 @@ void HudElements::graphs(){
     ImGui::PopStyleColor(1);
 }
 
+void HudElements::_sync(){
+    if (HUDElements.params->enabled[OVERLAY_PARAM_ENABLED_sync]){
+        ImGui::TableNextRow(); ImGui::TableNextColumn();
+        ImGui::PushFont(HUDElements.sw_stats->font1);
+        ImGui::TextColored(HUDElements.colors.engine, "%s", "SYNC");
+        ImGui::TableNextColumn();
+        right_aligned_text(HUDElements.colors.text, HUDElements.ralign_width, HUDElements.sync.c_str());
+        ImGui::PopFont();
+    }
+}
+
 void HudElements::sort_elements(std::pair<std::string, std::string> option){
     auto param = option.first;
     auto value = option.second;
@@ -725,6 +736,7 @@ void HudElements::sort_elements(std::pair<std::string, std::string> option){
     if (param == "custom_text_center")  { ordered_functions.push_back({custom_text_center, value}); }
     if (param == "gamemode")        { ordered_functions.push_back({gamemode, value});               }
     if (param == "vkbasalt")        { ordered_functions.push_back({vkbasalt, value});               }
+    if (param == "sync")            { ordered_functions.push_back({_sync, value});                  }
     if (param == "exec")            { ordered_functions.push_back({_exec, value});
                                       exec_list.push_back({int(ordered_functions.size() - 1), value});       }
     if (param == "graphs"){

src/hud_elements.h

@@ -29,6 +29,7 @@ class HudElements{
             "vram", "ram", "cpu_temp", "gpu_temp"
         };
         std::vector<exec_list> exec_list;
+        std::string sync, cpu_sched;
         void sort_elements(std::pair<std::string, std::string> option);
         void legacy_elements();
         void update_exec();
@@ -56,6 +57,7 @@ class HudElements{
         static void gamemode();
         static void graphs();
         static void _exec();
+        static void _sync();
 
         void convert_colors(struct overlay_params& params);
         void convert_colors(bool do_conv, struct overlay_params& params);

src/overlay_params.h

@@ -68,6 +68,7 @@ typedef unsigned long KeySym;
    OVERLAY_PARAM_BOOL(exec)                          \
    OVERLAY_PARAM_BOOL(vkbasalt)                      \
    OVERLAY_PARAM_BOOL(gamemode)                      \
+   OVERLAY_PARAM_BOOL(sync)                          \
    OVERLAY_PARAM_CUSTOM(fps_sampling_period)         \
    OVERLAY_PARAM_CUSTOM(output_folder)               \
    OVERLAY_PARAM_CUSTOM(output_file)                 \

src/vulkan.cpp

@@ -681,7 +681,42 @@ void init_system_info(){
          if (HUDElements.gamemode_bol && HUDElements.vkbasalt_bol)
             break;
       }
+      // check for esync/fsync/futex2
+      path = "/proc/" + to_string(pid) + "/fd/";
+      files = exec("ls " + path);
+      ss.clear(); ss << files;
+      string futex2_path;
 
+      while(std::getline(ss, line, '\n')){
+         auto file = path + line;
+         auto sym = read_symlink(file.c_str());
+         if (sym.find("esync") != std::string::npos){
+            HUDElements.sync = "ESYNC";
+            break;
+            }
+         if (sym.find("fsync") != std::string::npos){
+            if (getenv("WINEFSYNC_FUTEX2")){
+               if (atoi(getenv("WINEFSYNC_FUTEX2")) == 1 && find_folder("/sys/kernel/", "futex2", futex2_path) && wineVersion.find("experimental") != std::string::npos){
+                  HUDElements.sync = "FUTEX2";
+                  break;
+               } else {
+                  HUDElements.sync = "FSYNC";
+                  break;
+               }
+            } else {
+               if (find_folder("/sys/kernel/", "futex2", futex2_path) && wineVersion.find("experimental") != std::string::npos){
+                  HUDElements.sync = "FUTEX2";
+                  break;
+               } else {
+                  HUDElements.sync = "FSYNC";
+                  break;
+               }
+            }
+         }
+      }
+
+      if (HUDElements.sync.empty())
+         HUDElements.sync = "NONE";
       if (ld_preload)
          setenv("LD_PRELOAD", ld_preload, 1);
 #ifndef NDEBUG
@@ -691,7 +726,7 @@ void init_system_info(){
                 << "Os:" << os << "\n"
                 << "Gpu:" << gpu << "\n"
                 << "Driver:" << driver << "\n"
-                << "CPU Scheduler:" << cpusched << std::endl;
+                << "Sync:" << HUDElements.sync << std::endl;
 #endif
 #endif
 }