call_pre_post controls sequence's pre_body()

[wilsony]

I ran into a problem that my sequence's pre_body() is not executed. Tracing the problem indicates it is not called on purpose (by setting call_pre_post=0) because this is a sub-sequence( this sequence is invoked from a sequence_library).

Can anyone suggest a good solution to force this "sub-sequence"'s pre_body() to be executed?

I see one possible solution of overriding 'task uvm_sequence_library::execute(...)" to manually start/rand/finish instead of `uvm_rand_send(). I'm hoping for a simpler solution.

Thanks!

[jadec]

You could use pre_start() which is always called.

[wilsony]

That works. Thanks!!

Confusing... pre_body() is mentioned in uvm_user_guide everywhere while there is no mention of pre_start(). I see that for most applications, users should put their code in pre_start(). pre_body() seems to be a more advance topic. Also wish they were named more intuitively, something like pre_body() and optional_pre_body()...

[jadec]

You should read the uvm_sequence_base section of the reference guide that gives a detailed list of all the sequence methods called.