udt member/enum-val layout & nested baking; use rio to pre-fault all commits

src/os/core/win32/os_core_win32.c

@@ -8,6 +8,7 @@
 
 typedef HRESULT W32_SetThreadDescription_Type(HANDLE hThread, PCWSTR lpThreadDescription);
 global W32_SetThreadDescription_Type *w32_SetThreadDescription_func = 0;
+global RIO_EXTENSION_FUNCTION_TABLE w32_rio_functions = {0};
 
 ////////////////////////////////
 //~ rjf: File Info Conversion Helpers
@@ -207,6 +208,7 @@ internal B32
 os_commit(void *ptr, U64 size)
 {
   B32 result = (VirtualAlloc(ptr, size, MEM_COMMIT, PAGE_READWRITE) != 0);
+  w32_rio_functions.RIODeregisterBuffer(w32_rio_functions.RIORegisterBuffer(ptr, size));
   return result;
 }
 
@@ -1716,6 +1718,18 @@ w32_entry_point_caller(int argc, WCHAR **wargv)
     }
   }
   
+  //- rjf: get RIO extension function table
+  {
+    // NOTE(mmozeiko): need to get function pointers to RIO functions, and that requires dummy socket
+    WSADATA WinSockData;
+    WSAStartup(MAKEWORD(2, 2), &WinSockData);
+    GUID guid = WSAID_MULTIPLE_RIO;
+    DWORD rio_byte = 0;
+    SOCKET Sock = socket(AF_UNSPEC, SOCK_STREAM, IPPROTO_TCP);
+    WSAIoctl(Sock, SIO_GET_MULTIPLE_EXTENSION_FUNCTION_POINTER, &guid, sizeof(guid), (void**)&w32_rio_functions, sizeof(w32_rio_functions), &rio_byte, 0, 0);
+    closesocket(Sock);
+  }
+  
   //- rjf: get system info
   SYSTEM_INFO sysinfo = {0};
   GetSystemInfo(&sysinfo);

src/os/core/win32/os_core_win32.h

@@ -7,6 +7,8 @@
 ////////////////////////////////
 //~ rjf: Includes / Libraries
 
+#include <winsock2.h>
+#include <mswsock.h>
 #include <windows.h>
 #include <windowsx.h>
 #include <timeapi.h>
@@ -20,6 +22,7 @@
 #pragma comment(lib, "rpcrt4")
 #pragma comment(lib, "shlwapi")
 #pragma comment(lib, "comctl32")
+#pragma comment(lib, "ws2_32")
 #pragma comment(linker,"\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"") // this is required for loading correct comctl32 dll file
 
 ////////////////////////////////