From owner-freebsd-bugs  Thu Aug 15 16:30: 8 2002
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Date: Thu, 15 Aug 2002 16:30:03 -0700 (PDT)
Message-Id: <200208152330.g7FNU3IS043435@freefall.freebsd.org>
To: freebsd-bugs@FreeBSD.org
Cc: 
From: Nate Lawson <nate@root.org>
Subject: Re: kern/36219: poll() behaves erratic on BPF file descriptors.
Reply-To: Nate Lawson <nate@root.org>
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The following reply was made to PR kern/36219; it has been noted by GNATS.

From: Nate Lawson <nate@root.org>
To: freebsd-gnats-submit@FreeBSD.org, vlm@netli.com, gad@freebsd.org
Cc: bde@freebsd.org
Subject: Re: kern/36219: poll() behaves erratic on BPF file descriptors.
Date: Thu, 15 Aug 2002 16:20:34 -0700 (PDT)

 I looked over the current state of bpf.c and it seems like this PR can be
 closed.  Comments?
 
 if (events & (POLLIN | POLLRDNORM)) {
     /*
      * An imitation of the FIONREAD ioctl code.
      * XXX not quite.  An exact imitation:
      *if (d->b_slen != 0 ||
      *    (d->bd_hbuf != NULL && d->bd_hlen != 0)
      */
     if (d->bd_hlen != 0 ||
         ((d->bd_immediate || d->bd_state == BPF_TIMED_OUT) &&
         d->bd_slen != 0))
             revents |= events & (POLLIN | POLLRDNORM);
     else {
 
 -Nate
 

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