Hi Brandon, So based on what you are saying I kind of need a Haskell AIO "imperative"/monadic function that basically returns a handle that is associated with this AIOCB chunk-of-memory .... This handle gets passed around during an AIO I/O session?? Sorry for talking too "imperatively" ;^) <<< smiley face ;^) Vasili On Mon, Jul 28, 2008 at 1:09 AM, Brandon S. Allbery KF8NH < allbery@ece.cmu.edu> wrote:
On 2008 Jul 28, at 1:54, Galchin, Vasili wrote:
allocaBytes (#const sizeof(struct aiocb)) $ \ p_aiocb -> do poke p_aiocb aiocb
As I understand it, you can't do this;you must use the same aiocb throughout (that is, the same chunk of memory, not merely the same values; there is quite possibly a kernel mapping to it which you can't change or copy, or a pointer to the original aiocb is kept as internal state in the aio library so it can update the errno and result on the fly).
-- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH