Thread-ID - how much could be?

Ervin Hegedüs airween at gmail.com
Thu Sep 11 23:32:29 CEST 2014


Hi Peter,

thanks for the reply,

On Thu, Sep 11, 2014 at 09:48:18PM +0200, Peter Otten wrote:
> Ervin Hegedüs wrote:
> 
> > Exception in thread Thread-82:
> > ...
> > My question is: how much thread ID could be totally? Is there any
> > maximum number? And if the thread reached that, what will be
> > done? Overlflowed? Couting from 0 again?
> 
> A quick peak into threading.py reveals
> 
> # Helper to generate new thread names
> _counter = 0
> def _newname(template="Thread-%d"):
>     global _counter
>     _counter += 1
>     return template % _counter
> 
> class Thread:
>     ...
>     def __init__(self, group=None, target=None, name=None,
>                  args=(), kwargs=None, *, daemon=None):
>         ...
>         self._name = str(name or _newname())
> 
> 
> There is no upper limit to the thread name other than that you will 
> eventually run out of memory ;)

thanks - I hope that the memory will not run out by these
threads... :)

Anyway, that means, on my system:

>>> import sys
>>> print sys.maxint
9223372036854775807

the couter could be 9223372036854775807?

And after? :)


Thanks,


a.



 

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