in_channel_of_descr questions

["Christoph Bauer" <christoph.bauer@lmsintl.com>]

Hello,

I have some questions concerning in_channel_of_descr: my program
has a list of sockets. I need the sockets itself for a select-Loop
and an in_channel for the convenient input_line function. At the end,
which one should i close? Just the socket, just the channel or both?
On Windows I tried to create many in_channels, one for each block 
I read. Then I get soon an  "Too many open files in the system" error. 
In win32unix/channels.c I see an _open_osfhandle() call for each 
in_channel_of_descr. On unix the same program runs fine (as expected). 
So is there a different approach needed for windows e.g. close just 
the socket on unix, but close socket and in_channel
on windows? (In any case I'll remove the repeated call of 
in_channel_of_descr...).

Thanks for help,

Christoph Bauer