Hi Asam,
On Sun, 19 Jul 2020 at 21:38, ASAM <vmax28...@gmail.com> wrote:
>
> Hello Ben,
>
> I quickly made a dummy DLL to limit the problem to the essentials.
Great idea. A more generic example is attractive for people to
examine and help out.
I browsed the code but I'm sorry it needs a deeper expertise than I have.
Hopefully someone working on the threaded FFI will tune in.
In the meantime, it won't solve your query but you may find this
interesting to watch...
Strategies for Non-Blocking FFI
https://www.youtube.com/watch?v=L_QFwsNOMAc
cheers -ben
>
> I think my problem comes more from how I use the semaphore.
>
> I wanted to do that:
>
> only "semaphore signal",
> But that somehow doesn't work.
> Now i'm doing that "[ Processor yield. semaphore signal ] fork" (it work's)
> but i don't know if that's a good idea.
>
>
> ffiCallback
> ^ FFICallback signature: #( void #( uint32 foo ) ) block: [ :foo |
> Transcript
> show: 'API Funktion value: ' , foo asString, '
> activePriority:',
> Processor activePriority asString; cr.
>
> "that's working"
> [ Processor yield. semaphore signal ] fork.
>
> "that usually works 80%."
> "[ semaphore signal ] fork"
>
> "that crashes pharo almost always."
> "semaphore signal"
> ]
>
> I also have a little problem, too. Why can I use my own C-Type UNUM32 at
> ...self ffiCall: #( T_ERROR StartMyThreadFunction(UNUM32 millisecondsToFire)
> ).
> But with FFICallback signature: # (void # (uint32 foo)) I get an error
> "Unable to resolve external type: UNUM32. Why is that?
>
> Thanks for your help.
>
> testDllForAsyncCallback.dll
> <http://forum.world.st/file/t372350/testDllForAsyncCallback.dll>
> testDllForAsyncCallback.cpp
> <http://forum.world.st/file/t372350/testDllForAsyncCallback.cpp>
> testDllForAsyncCallback.h
> <http://forum.world.st/file/t372350/testDllForAsyncCallback.h>
> testDllForAsyncCallback.h
> <http://forum.world.st/file/t372350/testDllForAsyncCallback.h>
> UFFICallback.st <http://forum.world.st/file/t372350/UFFICallback.st>
> CTypes.st <http://forum.world.st/file/t372350/CTypes.st>
> <http://forum.world.st/file/t372350/Transcript.png>
>
>
>
>
> --
> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html
>
