Add socket abstraction

src/windows-emulator/network/socket_factory.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "i_socket.hpp"
+
+#include <memory>
+
+namespace network
+{
+    struct poll_entry
+    {
+        i_socket* s{};
+        int16_t events{};
+        int16_t revents{};
+    };
+
+    struct socket_factory
+    {
+        socket_factory();
+        virtual ~socket_factory() = default;
+
+        virtual std::unique_ptr<i_socket> create_socket(int af, int type, int protocol);
+        virtual int poll_sockets(std::span<poll_entry> entries);
+    };
+}