[ANN] Process-Specific Variables
Sebastian Sastre
ssastre at seaswork.com
Tue Mar 13 19:16:19 UTC 2007
Martin,
I'm sure you are able to think about the aplicability of
Process-Specific Variables. Can you elaborate some examples? I'm pretty sure
I'm not the only one that is not up to date with that and I think it will
help to understand the practical consequences of using them facilitating the
ponderation of it's value.
thanks,
Sebastian Sastre
> -----Mensaje original-----
> De: squeak-dev-bounces at lists.squeakfoundation.org
> [mailto:squeak-dev-bounces at lists.squeakfoundation.org] En
> nombre de "Martin v. Löwis"
> Enviado el: Martes, 13 de Marzo de 2007 16:03
> Para: squeak-dev at lists.squeakfoundation.org
> Asunto: [ANN] Process-Specific Variables
>
> I'd like to announce the first release of Process-Specific
> Variables, from
>
> http://www.squeaksource.com/ProcessLocalStorage.html
>
> Process-specific variables are variables that are neither
> global nor specific to an object (like instance variables) or
> to a class.
> Instead, they can have a different value in the context of
> each Process.
>
> New variables are declared by inheriting from a base class,
> similar to the way WADynamicVariable of Seaside works.
>
> There are two kinds of process-specific variables:
> - ProcessLocalVariable is the base class for process-specific
> read-write variables. They are similar to thread-local storage
> (TLS) available in various operating systems. Reading and writing
> uses #value and #value:
> - DynamicVariable is the base class of dynamically-scoped read-only
> variables. They are similar to the dynamic scoping in LISP.
> They can be read using #value, and set for the duration of a block
> with #value:during:
>
> The implementation uses a per-process dictionary which is
> keyed by the variable class.
>
> Comments are welcome,
>
> Martin
>
>
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