On Nov 12, 2013, at 4:32 PM, Jerry <lancebo...@qwest.net> wrote:

> I posted an announcement some time back on comp.lang.ada. about the latest 
> PLplot release. (FWIW, it currently has 182 views, and I got some useful 
> feedback from the Ada gurus.)
> 
> Today this post (below) appeared. I don't know how to answer his question 
> about thread safety. Any thoughts?
> 
> Jerry
> 
> 
> 
> 
> Hi Jerry, 
> 
> That looks really interesting. 
> 
> I'm looking for a plotter routine that could be used safely inside the AWS [= 
> Ada Web Server] web server, so I can implement a 'callback' chart server 
> (currently I have one written in Java). 
> 
> Could this be used for that? Some simple tests suggest to me that it isn't 
> thread safe. The  Initialize_PLplot [aka plinit] and associated procedures to 
> set filenames, etc, seem to set global variables somewhere. Is there some 
> trick I'm missing? 
> 
> It does make lovely looking charts. 
> 
> thanks very much for this. 
> 
> Graham 

Thanks Alan and Hezekiah. I've transferred your responses to comp.lang.ada.
Jerry


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