[Net] Convert sockets to asio

Makes the socket layer cross-platform while retaining mostly BSD socket
style API.

Author: has207

src/xenia/base/platform.h

@@ -81,8 +81,12 @@
 #endif
 
 #if XE_PLATFORM_WIN32
+#ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
+#endif
+#ifndef NOMINMAX
 #define NOMINMAX  // Don't want windows.h including min/max macros.
+#endif
 #endif            // XE_PLATFORM_WIN32
 
 #if XE_PLATFORM_WIN32

src/xenia/base/platform_win.h

@@ -19,7 +19,9 @@
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
+#ifndef NOMINMAX
 #define NOMINMAX
+#endif
 #include <ObjBase.h>
 #include <SDKDDKVer.h>
 #include <bcrypt.h>

src/xenia/kernel/premake5.lua

@@ -6,8 +6,22 @@ project("xenia-kernel")
   uuid("ae185c4a-1c4f-4503-9892-328e549e871a")
   kind("StaticLib")
   language("C++")
+  includedirs({
+    project_root.."/third_party/asio/include",
+  })
+  defines({
+    "ASIO_STANDALONE",
+    "ASIO_NO_DEPRECATED",
+  })
+  filter("platforms:Windows")
+    defines({
+      "_WIN32_WINNT=0x0A00",  -- Windows 10+ for Asio
+      "_WINSOCK_DEPRECATED_NO_WARNINGS",  -- Suppress deprecated Winsock API warnings
+    })
+  filter({})
   links({
     "aes_128",
+    "asio",
     "fmt",
     "zlib-ng",
     "pugixml",

src/xenia/kernel/xam/xam_net.cc

@@ -21,7 +21,9 @@
 
 #ifdef XE_PLATFORM_WIN32
 // NOTE: must be included last as it expects windows.h to already be included.
+#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
 #define _WINSOCK_DEPRECATED_NO_WARNINGS  // inet_addr
+#endif
 #include <winsock2.h>                    // NOLINT(build/include_order)
 #elif XE_PLATFORM_LINUX
 #include <arpa/inet.h>
@@ -311,9 +313,7 @@ DECLARE_XAM_EXPORT1(NetDll_WSACleanup, kNetworking, kImplemented);
 // Xbox shares space between normal error codes and WSA errors.
 // This under the hood returns directly value received from RtlGetLastError.
 dword_result_t NetDll_WSAGetLastError_entry() {
-  uint32_t last_error = XThread::GetLastError();
-  XELOGD("NetDll_WSAGetLastError: {}", last_error);
-  return last_error;
+  return XThread::GetLastError();
 }
 DECLARE_XAM_EXPORT1(NetDll_WSAGetLastError, kNetworking, kImplemented);