[Haskell-cafe] Re: Issues with posix-realtime package

[Galchin, Vasili]

On Sat, Jan 10, 2009 at 5:52 AM, Manlio Perillo <manlio_perillo at libero.it>wrote:

> Galchin, Vasili ha scritto:
>
>> Manlio,
>>
>> so compiling to native machine code works ok but if using ghci byte-code
>> interpreter doesn't ..... can you supply your program please?
>>
>>
> Right.
> Can't you reproduce the problem?
>
> The program is very simple (I was just testing your package, since I
> suggested the use of clock_gettime to Mauricio in a previous post):
>
> import System.Posix.Realtime.RTTime
> import System.Posix.Realtime.RTDataTypes
>
>
> main = do
>  time <- clockGetTime Clock_Monotonic;
>  print $ tvSec time
>  print $ tvNsec time
>
>
> runghc rttime.hs
>
>
> I suspect that this is a problem with shared library loading in ghci, since
> the C code you use for your package, is also used by the base package (for
> the Posix subsystem).
>
> By the way: I don't see reasons to add all that code, since it is not used.

                   ^^^ which code?

>
> However, when I tried to remove all the unused code, executing the program
> gave me a stack exception (maybe I have removed too many things...).
>
>
>
> One personal note: I don't like `tvSec` and `tvNsec`, I think `seconds` and
> `nanoSeconds` is a better choice.
>           ^^^ ok .. I agree and will change. I asked others for
> criticisms(constructive) when I put to hackage but didn't get any. This is
> good ...



>
> Also, it would useful a function to compute elapsed time (maybe a general
> class in base package, and a specialized instance declaration in
> posix-realtime for the timespec?)
>
>
>  Vasili
>>
>>
> > [...]
>
>
>
> Manlio
>
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