FIONBIO support in freebsd for bpf

[Christian Peron]

It is supported. If you want to put the descriptor into non-blocking mode, open it up with
the device with the O_NONBLOCK flag specified.  It probably wouldn't be too difficult to implement
this via ioctl(FIONBIO) but I would need to look at it.  Not certain why it can't be done using this
method.

Hope this helps.

On Tue, Apr 26, 2016 at 07:22:20PM -0400, dayanidhi sreenivasan wrote:
> Hi Guys,
> Can somebody tell me why there is no support for non blocking IO for bpf yet?
> 
> static  int
> bpfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags,
>     struct thread *td)
> {
> 
> ......
> 
>  case FIONBIO:       /* Non-blocking I/O */
>         break;
> 
> }
> 
> Thanks
> Daya
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