...

net/adc_netserver.h

@@ -7,6 +7,8 @@ ABSTRACT DEVICE COMPONENTS LIBRARY
 */
 
 #include <filesystem>
+#include <set>
+#include <unordered_map>
 #if __has_include(<unistd.h>)  // POSIX
 #define FORK_EXISTS 1
 #include <sys/stat.h>
@@ -103,6 +105,15 @@ concept adc_netserver_session_c = requires {
 namespace traits
 {
 
+template <typename T>
+concept adc_generic_netserver_impl_c = requires(T t, const T t_const) {
+    typename T::server_ident_t;
+
+    { t_const.serverIdent() } -> std::same_as<typename T::server_ident_t>;
+    { t.start() } -> std::same_as<void>;
+    { t.stop() } -> std::same_as<void>;
+};
+
 template <typename T>
 concept adc_netserver_impl_c = requires(T t, const T t_const) {
     typename T::server_ident_t;
@@ -110,12 +121,54 @@ concept adc_netserver_impl_c = requires(T t, const T t_const) {
     { t_const.serverIdent() } -> std::same_as<typename T::server_ident_t>;
     { t.start() } -> std::same_as<void>;
     { t.stop() } -> std::same_as<void>;
+    { t.daemonize() } -> std::same_as<void>;
     { t.daemonizePrepare() } -> std::same_as<void>;
     { t.daemonizeFinalize() } -> std::same_as<void>;
 };
 
 }  // namespace traits
 
+
+/*  VERY GENERIC NETWORK SERVER INTERFACE  */
+
+template <traits::adc_generic_netserver_impl_c ImplT>
+class AdcGenericNetServer
+{
+protected:
+    ImplT _impl;
+
+public:
+    typedef ImplT server_impl_t;
+    using typename ImplT::server_ident_t;
+
+    template <typename... ImplCtorArgTs>
+    AdcGenericNetServer(ImplCtorArgTs&&... ctor_args) : _impl(std::make_unique<ImplT>(ctor_args)...)
+    {
+    }
+
+
+    virtual ~AdcGenericNetServer() = default;
+
+
+    virtual server_ident_t serverIdent() const
+    {
+        //
+        return _impl.serverIdent();
+    }
+
+    virtual void start()
+    {
+        //
+        _impl.start();
+    };
+
+    virtual void stop()
+    {
+        //
+        _impl.stop();
+    };
+};
+
 template <traits::adc_netserver_impl_c ImplT>
 class AdcNetServer
 {
@@ -159,6 +212,7 @@ public:
     {
         daemonizePrepare();
 
+        // reference implementation of forking for POSIX OSes
 #ifdef FORK_EXISTS
         // get TEMP directory in OS
 
@@ -204,6 +258,17 @@ public:
 
 
 protected:
+    // started sessions waek pointers
+    template <traits::adc_netserver_session_c SessionT>
+    static std::unordered_map<const AdcNetServer*, std::set<typename SessionT::weak_ptr_t>> _serverSessions;
+
+    template <traits::adc_netserver_session_c SessionT>
+    void startAsyncSession(const typename SessionT::shared_ptr_t& sess_ptr)
+    {
+        _serverSessions<SessionT>[this].insert(sess_ptr);
+        sess_ptr.start();
+    }
+
     virtual void daemonizePrepare()
     {
         //