Add socket abstraction

src/windows-emulator/network/socket_factory.cpp

@@ -0,0 +1,55 @@
+#include "socket_factory.hpp"
+#include "socket_wrapper.hpp"
+
+namespace network
+{
+    socket_factory::socket_factory()
+    {
+        initialize_wsa();
+    }
+
+    std::unique_ptr<i_socket> socket_factory::create_socket(int af, int type, int protocol)
+    {
+        return std::make_unique<socket_wrapper>(af, type, protocol);
+    }
+
+    int socket_factory::poll_sockets(const std::span<poll_entry> entries)
+    {
+        std::vector<pollfd> poll_data{};
+        poll_data.reserve(entries.size());
+
+        for (const auto& entry : entries)
+        {
+            if (!entry.s)
+            {
+                throw std::runtime_error("Bad socket given!");
+            }
+
+            const auto* wrapper = dynamic_cast<socket_wrapper*>(entry.s);
+            if (!wrapper)
+            {
+                throw std::runtime_error("Socket was not created using the given factory");
+            }
+
+            pollfd fd{};
+            fd.fd = wrapper->get().get_socket();
+            fd.events = entry.events;
+            fd.revents = entry.revents;
+
+            poll_data.push_back(fd);
+        }
+
+        const auto res = poll(poll_data.data(), static_cast<uint32_t>(poll_data.size()), 0);
+
+        for (size_t i = 0; i < poll_data.size() && i < entries.size(); ++i)
+        {
+            auto& entry = entries[i];
+            const auto& fd = poll_data[i];
+
+            entry.events = fd.events;
+            entry.revents = fd.revents;
+        }
+
+        return res;
+    }
+}