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Re: User-settable FD_SETSIZE and select()
- From: mtk-lists at gmx dot net
- To: Ulrich Drepper <drepper at redhat dot com>
- Cc: libc-alpha at sources dot redhat dot com
- Date: Tue, 20 May 2003 09:19:14 +0200 (MEST)
- Subject: Re: User-settable FD_SETSIZE and select()
- References: <3EC9136D.6010604@redhat.com>
> Use poll().
This does make it harder to port applications using select() from other
implementations which allow higher limits for FD_SETSIZE. E.g., HP/UX
has a limit of 2048, and Tru64 has 4096. And while the default limit os
1024
on Solaris, I seem to recall it can be raised.
> FD_SETSIZE will not be changed, it's not binary compatible.
I'm not sure what you are meaning here -- "not binary compatible" with what?
As I noted, manually editing the current glibc header files allows an
application
to use higher FD_SETSIZE values without the need for either a Linux kernel
rebuild or a glibc rebuild.
Cheers
Michael
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