Re: [ctypes-users] Special use case for ctypes

[Nicolas P. <nic...@aa...>]

One way to do what you want is to create a process linked with your 
library. This process is the single access point to your C library. This 
process communicates with other processes (Pyhton and C#) through 
sockets, pipes or anything else.


Le 04/05/2017 à 23:37, Zak Smolen a écrit :
> Hi,
>
> I am trying to do something odd, and I was hoping someone may have 
> some ideas/guidance.
>
> My application has a C later, accessed by C# layers. I also have a 
> python wrapper for that C layer written using ctypes. I would like to 
> have the C# call python scripts which would then, using my library, do 
> things to the /same instance /of the C DLL as the C# is using.
>
> I know this is a complex task, but I feel like it should be possible. 
> After searching around the source code a bit I found a few things. On 
> my windows machine (windows-only is fine initially) it is using the 
> LoadLibrary function from kernel32. Also, the CDLL class is able to 
> take a handle pointer to use instead of calling LoadLibrary.
>
> So, I wrote this little wrapper function and I was able to pass in the 
> handle that the C# is using for the DLL so that the python is using 
> the same handle. That didn't seem to cut it. Anyone have any ideas 
> that may help with this task?
>
> Also, before you suggest it, I know about things like IronPython and 
> Python for .NET. The issues there are twofold: first, they are 
> restricted and don't have all libs, especially IronPython. Second, if 
> I want to use the python library, it still gets a different instance.
>
> Thanks,
> Zak
>
>
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*Nicolas PINAULT
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*** ni...@aa... <mailto:ni...@aa...>

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