Use poll with Windows socket

Corinna Vinschen
Thu Aug 8 08:25:00 GMT 2019

On Aug  8 02:39, Biswapriyo Nath wrote:
> I've tried to use poll() with a Windows socket (from WSASocket) and a
> cygwin side file descriptor (fd). But it is only signaled for fd only.
> At first, I have seen that fhandler_socket_wsock::set_socket_handle() casts
> SOCKET to int. So, is it possible to use poll() with the SOCKET type? Or Is
> there any magic to convert Windows socket to cygwin fd and vice-versa?

No, you can't do that.  The Cygwin poll call requires a Cygwin socket,
otherwise all the bookkeeping stuff fails.


Corinna Vinschen
Cygwin Maintainer
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