[Q] select equivalent in Win32 for normal file?

[S.J.Chun]

Hi,

I thought I've almost done with my patching GSFileHandle, NSRunLoop, GSTcpPort 
and etc for networking. But
there appears big problem. When I run nsconnection_serve/client, it runs 
well(actually my sony vaio c1-mtl, which
uses crusoe cpu emits error when sending structs... I don't know why). But when 
I run call which uses standard
in/out/err and they should be monitored in NSRunLoop, it does not work. Now 
here comes the question, is there
any equivalent method or call for select for normal file or stdin,out,err like 
descriptors? And how can I know
given descriptor is for socket or for file? I think this is my last problem 
during patching... :-) Thanks in advance.