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Date:      30 Jan 2001 11:56:22 -0800
From:      Kevin Mills <kmills@a6l.net>
To:        "Jeff Roberson" <jeff@midstream.com>
Cc:        "'Alfred Perlstein'" <bright@wintelcom.net>, "'freebsd-hackers@freebsd.org'" <freebsd-hackers@freebsd.org>
Subject:   Re: Kevents/libc_r ?
Message-ID:  <85puh4stjt.fsf@diablo.in.a6l.net>
In-Reply-To: "Jeff Roberson"'s message of "Tue, 30 Jan 2001 11:17:46 -0800"
References:  <31E4B6337A4FD411BD45000102472E0C05E74D@EMAIL_SERVER>

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"Jeff Roberson" <jeff@midstream.com> writes:

> Is that true in -CURRENT as well?  It looks to me like it calls kevents with
> a 0 timespec and then calls into the scheduler.
> 
> > * Jeff Roberson <jeff@midstream.com> [010130 11:05] wrote:
> > > Does anyone know if it's safe to use kevents with pthreads yet?  I poked
> > > around and saw that it is handled in libc_r/uthread, but I also noticed
> that
> > > my process that should be waiting in kqread is actually waiting in poll.
> If
> > > I remove -pthread from the compile line it waits in kqread again!  Is
> > > pthreads just using poll for timeouts?
> > 
> > pthreads puts the kevent into the array of pollfds that it uses to
> > do non-blocking operations.

Wait a second here... what does this mean?  Am I reading that when using 
non-blocking sockets and kevent with -pthread I'm actually using poll?

Please explain - I'm trying to get away from poll!

Thank you!


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