[Mono-dev] Unix.Native

[Greg Young]

Are there any instructions on building/testing the area (linux)?

I don't mind jumping in it a bit

On Tue, Jan 13, 2015 at 6:28 AM, Miguel de Icaza <miguel at xamarin.com> wrote:
> Hey,
>
> Good observation, so passing a -1 is enough.
>
> That said, perhaps we do need to expose a number of overloads with various
> possible data types of other sizes.
>
> On Mon, Jan 12, 2015 at 11:23 PM, Greg Young <gregoryyoung1 at gmail.com>
> wrote:
>>
>> I would guess it to be the same for others like F_RDAHEAD
>>
>> I don't think the long is too horrible as its only defined as 0/non-zero
>>
>> On Tue, Jan 13, 2015 at 6:15 AM, Miguel de Icaza <miguel at xamarin.com>
>> wrote:
>> > I added support for this on master.
>> >
>> > That said, there is an issue that I think will bite us.
>> >
>> > Currently the fcntl P/Invoke declaration uses a "long" as a general
>> > purpose
>> > way of passing flags to fcntl, and I suspect the parameter to F_NOCACHE
>> > should be an int.
>> >
>> > Thoughts?
>> >
>> > Miguel
>> >
>> > On Mon, Jan 12, 2015 at 7:28 PM, Greg Young <gregoryyoung1 at gmail.com>
>> > wrote:
>> >>
>> >> I have been trying to set F_NOCACHE via fcntl on a mac to no avail.
>> >>
>> >>                  r = Syscall.fcntl
>> >> (handle.DangerousGetHandle().ToInt32(), (FcntlCommand) MAC_F_NOCACHE,
>> >> 1);
>> >>                  } while (UnixMarshal.ShouldRetrySyscall ((int) r));
>> >>                  if (r == -1)
>> >>                      UnixMarshal.ThrowExceptionForLastError ();
>> >>
>> >> (EINVAL)
>> >>
>> >> I have tried
>> >> 48
>> >> 0x400
>> >> and 0x40000
>> >> for F_NOCACHE though from
>> >>
>> >>
>> >> https://github.com/realthunder/mac-headers/blob/master/usr/include/sys/fcntl.h#L256
>> >>
>> >> Given FcntlCommandFlags does not expose F_NOCACHE but it still should
>> >> be fine to jam the value into the enum
>> >>
>> >> Has anyone set this before? Chances of finding this on google are
>> >> slightly better than 0 :)
>> >>
>> >> Cheers,
>> >>
>> >> Greg
>> >> --
>> >> Studying for the Turing test
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>> >
>> >
>>
>>
>>
>> --
>> Studying for the Turing test
>
>



-- 
Studying for the Turing test