guideline

Minimize the number of accept and select statements per task .

Minimize the number of accept statements per entry.

Use:

accept A;
if Mode_1 then
   -- do one thing
else  -- Mode_2
   -- do something different
end if;

rather than:

if Mode_1 then
   accept A;
   -- do one thing
else  -- Mode_2
   accept A;
   -- do something different
end if;

rationale

This guideline reduces conceptual complexity. Only entries necessary to understand externally observable task behavior should be introduced. If there are several different accept and select statements that do not modify task behavior in a way important to the user of the task, there is unnecessary complexity introduced by the proliferation of select/accept statements. Externally observable behavior important to the task user includes task timing behavior, task rendezvous initiated by the entry calls, prioritization of entries, or data updates (where data is shared between tasks).

notes