[okl4-developer] cell to threads communication

[Hannes Payer]

Well, this question seems to be somehow related to the question asked in
"Capability Passing in OKL4 3.0"
http://wiki.ok-labs.com/forum#nabble-td2241729. Can I dynamically create
these capabilities in the server cell at runtime? A client thread would have
to pass some information(?) to the server cell. The server would then have
to create the necessary capability and send the result back to the given
client thread. Is this possible in OKL4?

-H



Hannes Payer wrote:
> 
> Hi,
> 
> how can multiple threads running in one cell communicate with another
> cell? I looked at the available OKL4 documentation and played around with
> the API, but I am not sure how to get this done. 
> 
> The following program works for me:
> There are 2 cells running in the system. One is a server cell performing a
> calculation based on client input and returning the result to the client.
> The server cell waits for a notification (okl4_notify_wait) from the
> client cell. Whenever the client cell wants to communicate with the server
> it writes data to a known shared memory location and sends the server cell
> a notification (okl4_notify_send) and waits for a notification from the
> server for the result. The server cell looks-up the input in shared
> memory, computes the result, writes the result to shared memory and sends
> the client a notification. This example is very similar to the decrypt
> demo of the OKL4 examples and on a cell-to-cell communication basis this
> system works. 
> 
> My question: 
> Can I implement this example also with multiple threads running in the
> client cell where each single thread communicates with the server cell?
> How does the server cell get the capability to send a given thread from
> the client cell a notification? Do I have to stick to cell-to-cell
> communication and multiplex the messages from the server cell on the
> client cell side?
> 
> I hope my problem description is precise enough. Thank you very much for
> your help.
> 
> -H
> 

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