Date: Tue, 26 Apr 2016 20:49:50 -0500 From: Christian Peron <csjp@sqrt.ca> To: dayanidhi sreenivasan <dayanidhi.sreenivasan@gmail.com> Cc: freebsd-arch@freebsd.org Subject: Re: FIONBIO support in freebsd for bpf Message-ID: <5DCCBADE-B367-46DA-9B48-9393F7A3C2AD@sqrt.ca> In-Reply-To: <20160427013155.GA3880@xor.gateway.mts.net> References: <CADrQwqrpsvG6bdmK=-bmYqFqTUYjby6=xcscc-uFo1_7=tGXNw@mail.gmail.com> <20160427013155.GA3880@xor.gateway.mts.net>
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Actually, upon inspection of the code, it appears that ioctl(fd, =
FIONBIO, ..); works as expected. This ioctl cmd appears to be handled =
further up the stack=E2=80=A6
> On Apr 26, 2016, at 8:31 PM, Christian Peron <csjp@sqrt.ca> wrote:
>=20
> 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.
>=20
> Hope this helps.
>=20
> 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?
>>=20
>> static int
>> bpfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags,
>> struct thread *td)
>> {
>>=20
>> ......
>>=20
>> case FIONBIO: /* Non-blocking I/O */
>> break;
>>=20
>> }
>>=20
>> Thanks
>> Daya
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