Delivering data to python from a c-thread

[Steve Holden]

Svein Seldal wrote:
> Steve Holden wrote:
> 
>> Could you have the Python code create a second Python thread and have it 
>> call back into the C code to collect any waiting data?
> 
> Well yeah, in principle. However one would need some synchronization 
> mechanisms anyway. The C data source is generating asynch. messages to 
> deliver to python and thus the py thread must be ready to wait for it. 
> It will add another thread in the total application (cuz' I cant remove 
> the extra C thread since it has other important tasks), but I'll give it 
> a shot at least!
> 
OK. I was just thinking that, with Python threads, communication using 
Queue.Queue is thread-safe and will handle the GIL, so that way you only 
have the problem of how to synchronize your C code when it receives the 
callback from the Python thread.

regards
  Steve
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