함수 구조체 typedef struct _RIO_EXTENSION_FUNCTION_TABLE { DWORD cbSize; LPFN_RIORECEIVE RIOReceive; LPFN_RIORECEIVEEX RIOReceiveEx; LPFN_RIOSEND RIOSend; LPFN_RIOSENDEX RIOSendEx; LPFN_RIOCLOSECOMPLETIONQUEUE RIOCloseCompletionQueue; LPFN_RIOCREATECOMPLETIONQUEUE RIOCreateCompletionQueue; LPFN_RIOCREATEREQUESTQUEUE RIOCreateRequestQueue; LPFN_RIODEQUEUECOMPLETION RIODequeueCompletion; LPFN_RIODEREGI..