[liblouis-liblouisxml] Re: Java bindings for lou_registerLogCallback and lou_setLogLevel
- From: Bert Frees <bertfrees@xxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Thu, 12 Jun 2014 15:13:54 +0200
Hi Michael,
Good point.
No, JNA doesn't take care of that and neither do my bindings. It's
currently the responsibility of the calling application to keep a
reference to the callback object.
I guess I could make a convenience wrapper function that keeps a
reference for you, just like you do in the liblouisutdml
bindings. Something to be considered.
Thanks,
Bert
Michael Whapples writes:
> Thanks for sharing that.
>
> One thing I think I notice in that is that your bindings never take a
> reference to the callback object. This is not a problem providing the
> calling application uses it correctly, but should it not then
> potentially the callback object could be garbage collected and then
> liblouis may try and call it and things fall over. Is that correct or
> does JNA do something?
>
> In the LibLouisUTDML bindings I get the bindings to take and hold a
> global reference to the callback object and only release that reference
> when lou_registerLogCallback is called again (may it be called with NULL
> to free the callback or another callback object).
>
> Michael Whapples
> On 12/06/2014 12:38, Bert Frees wrote:
>> Hello Michael,
>>
>> I've updated my JNA based Java bindings to support
>> lou_registerLogCallback and lou_setLogLevel. See
>> https://github.com/liblouis/liblouis-java/commit/a30a1ad7212bed369c3ffd651c393ca241f83ae6
>> if you like to know how I did it.
>>
>> Cheers,
>> Bert
>> For a description of the software, to download it and links to
>> project pages go to http://www.abilitiessoft.com
>
> For a description of the software, to download it and links to
> project pages go to http://www.abilitiessoft.com
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
Other related posts:
