Subj : Re: Threading and Timeouts
To   : comp.programming.threads
From : Marcin 'Qrczak' Kowalczyk
Date : Wed Jul 20 2005 01:50 pm

Giancarlo Niccolai <searchforme@ingoogle.com> writes:

> Actually, I found that blocking i/o with select or poll works fine.
> Once select returns signaling that a socket can be read/written,
> a single read/write operation is GUARANTEED not to block;

Except when another processes reads it in the meantime, and except
that Linux has a bug where certain socket activities trigger select
to return but there is nothing to read.

And of course with blocking sockets you have to select before each
read, and with non-blocking ones you only select when read fails with
EAGAIN.

select is primarily designed for non-blocking I/O.

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak@knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/

.