[Dev] libcynara API

Lukasz Wojciechowski l.wojciechow at partner.samsung.com
Tue May 20 15:05:10 GMT 2014

Hi Jussi

I've mentioned about such an approach earlier, when I propose 
asynchronous API.
What You need is single threaded asynchronous API. As for many other 
possible applications/services based on glib main loop You need 
asynchronous calls that probably return a descriptor that You can attach 
to Your main loop and when it is ready for read, run another cynara 
function that will extract and interprete data.

I remember about asynchronous API, but I would like to leave 
implementation of it for further releases and now focus on 
cynara-daemon-based version.

Best wishes

W dniu 2014-05-20 16:53, Jussi Laako pisze:
> On 20.5.2014 0:21, Patrick Ohly wrote:
>> I plan to clean up properly when the process shuts down. This includes
>> calling cynara_finish() ("should be called once before exiting
>> service"). Once I do that after having introduced threading, I need to
>> know what happens when there is a parallel cynara_check(), or whether I
>> am expected to avoid this situation.
> If I'd ever implement Cynara support to gsignond which is driver by 
> glib mainloop but not multi-threaded (and not planned to be), I'd need 
> to ask how to launch multiple parallel cynara_check()'s in parallel.
> Because we dispatch calls to different plugin processes 
> asynchronously, thus handling new requests for other methods before 
> plugin process completes the previous one.
> If cynara_check() can block for UI, then dbus call will timeout after 
> 30 seconds and it could mean a completely unrelated client request 
> timing out.
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