Re: "C - like: THIS" pointer to a task type inside a task function

["J-P. Rosen" <rosen@adalog.fr>]

Le 23/01/2012 20:32, Ada BRL a �crit :

I too have concerns about your design, but to answer your specific question:
> 			accept Send_Data(Data, Ti) do -- ===> Problem here! How can I
> retrieve Ti object. I think I need a "this" pointer inside the task
> body. Ti has to notify T4 who's the sender of data.
> 
Inside the body of T1 (or any task type), the name T1 acts as a "this",
i.e. it is not interpreted as a task type, but as a name that designate
the current task. If all your clients are of the same type, use an
access to this task type and T1'access can be used as a pointer to the
current task.

If you need several task types, use a pointer to an interface that all
task types implement.

But there can be many other solutions, assuming you really need
two-stage communication. F.E., if know you have a limited number of
clients, Retrieve_Data could be turned into an entry family, and
Send_Data would provide a token (index into the entry family) where the
client would retrieve its own data. This way, it's always the client who
calls the server.
-- 
J-P. Rosen
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