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Date: Mon, 8 Sep 2003 12:18:14 +0400 (MSD)
From: Dmitry Morozovsky <marck@rinet.ru>
To: Lev Walkin <vlm@netli.com>
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Subject: Re: if bpf fd's select()able?
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On Mon, 8 Sep 2003, Lev Walkin wrote:

LW> > However, I found a (really stupid, yeah) bug: the first parameter of select()
LW> > in this test case should be fd+1, not 1 ;-)
LW>
LW> Unfortunately, this could not possibly be the case, if your system's
LW> documentation is in sync with the reality:
LW>
LW> === select(2) ===
LW> For historical reasons,
LW>       select() will always examine the first 256 descriptors.
LW> === cut ===

Well, I suppose either this part of the documentation is obsolete, or
something else went wrong, but: this select() works with fd+1 on both 4.8-R and
4.9-PRE, and does not work with both 1 and fd as nfd. I check the fd to be 3
in all cases.

I did not dig into select() sources yet, though.

Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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