todo: iocp recv안되는 문제 해결하기

Client/include/vulkan_engine/vulkan/engine.h

@@ -9,8 +9,9 @@ namespace veng {
 
 class Engine {
  public:
-  Engine(gsl::not_null<Graphics*> vulkan_graphics)
-      : vulkan_graphics(vulkan_graphics) {}
+  Engine(gsl::not_null<Graphics*> vulkan_graphics,
+         utils::ThreadPool* thread_pool)
+      : vulkan_graphics(vulkan_graphics), thread_pool_(thread_pool) {}
 
   void init();
 
@@ -39,7 +40,7 @@ class Engine {
  private:
   Loader asset_loader_;
   Physics physics_controller_;
-  utils::ThreadPool thread_pool_;
+  utils::ThreadPool* thread_pool_;
 
   glm::ivec2 window_size_ = {0, 0};
   std::double_t last_frame_time_ = 0.0;