See the Data.ByteString.Internal docs:
http://www.haskell.org/ghc/docs/latest/html/libraries/bytestring/Data-ByteString-Internal.html#v%3AtoForeignPtr
Of course, you'd better not write to the contents of that pointer, or
bad things could happen...
David
On Mon, Jun 23, 2008 at 08:18:23PM -0500, Galchin, Vasili wrote:
> e.g. on Word8 .....
>
> let aiocb = AIOCB{
> aioFd=fd,
> aioLioOpcode=0,
> aioReqPrio=0,
> aioOffset=0,
> aioBuf=??, <<<<<<<<<<<<<<<<<<<<< Ptr Word8
> aioBytes=128,
> aioSigevent=event}
>
> ???
>
> Kind regards, Vasili
>
> On Mon, Jun 23, 2008 at 8:13 PM, Galchin, Vasili <[EMAIL PROTECTED]>
> wrote:
>
> > ok .....
> >
> > 1) how do I marshall from ByteString to char * (poke)??
> >
> > 2) how do I write
> >
> > let x =??? :: Word8
> >
> > 3) how do I write
> >
> > let y = ??? ::ByteString
> >
> > Kind regards, Vasili
> >
> >
> >
> > On Mon, Jun 23, 2008 at 6:13 PM, Adam Langley <[EMAIL PROTECTED]>
> > wrote:
> >
> >> On Mon, Jun 23, 2008 at 2:27 PM, Don Stewart <[EMAIL PROTECTED]> wrote:
> >> > So heap allocated and collected, but not moved.
> >>
> >> My bad. In that case, you might want to work with ByteStrings all the
> >> way since it might make building the visible interface (which probably
> >> should use ByteStrings) easier.
> >>
> >>
> >> AGL
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