[Mono-dev] Unix.Native

[Greg Young]

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