...

net/adc_netservice.h

@@ -23,6 +23,8 @@ protected:
     ImplT _impl;
 
 public:
+    using impl_t = ImplT;
+
     using typename ImplT::endpoint_t;
 
     using timeout_clock_t = std::chrono::steady_clock;
@@ -45,9 +47,12 @@ public:
     /*  asynchronuos operations  */
 
     // open connection
-    auto asyncConnect(const endpoint_t& end_point, const timeout_drtn_t& timeout = defaultConnectTimeout)
+    template <typename... ArgTs>
+    auto asyncConnect(const endpoint_t& end_point,
+                      const timeout_drtn_t& timeout = defaultConnectTimeout,
+                      ArgTs&&... args)
     {
-        return _impl.asyncConnect(end_point, timeout);
+        return _impl.asyncConnect(end_point, timeout, std::forward<ArgTs>(args)...);
     }
 
 
@@ -94,4 +99,15 @@ public:
 };
 
 
+namespace traits
+{
+
+// template <typename T>
+// concept adc_netservice_c = requires {
+//     typename T::impl_t;
+//     std::derived_from<AdcNetService<typename T::impl_t>>;
+// };
+
+}  // namespace traits
+
 }  // namespace adc