On 23.09.22 13:19, Luis Alves wrote:
Dear RTEMS community,
I’m part of the team performing the Independent Software Verification
and Validation (ISVV) of the RTEMS SMP Qualification Data Pack (which is
being provided through https://rtems-qual.io.esa.int/
<https://rtems-qual.io.esa.int/>).
While trying to setup tests to assert the overall “Timer Server”
feature, one has realized that:
* Although rtems_timer_initiate_server() is mentioned within section
4.10 of the SW Configuration File (SCF) as a pre-qualified item
(“/which may be directly used by applications/”), one gets build
issues while trying to use it, as it depends on rtems_timer_create().
Yes.
* The same SCF (within section 4.9.3) also says: “/The
rtems_task_create() directive is pre-qualified, however, it is only
available if a custom stack allocator is configured. It is
recommended to use rtems_task_construct() instead/”:
o Isn’t this contradictory, as:
+ Both rtems_timer_initiate_server() and tems_task_create()
are listed within SCF section 4.10 and
+ at the start of section 4.10, it is said that listed items
are “/pre-qualified items .. which may be directly used by
applications/”?
For the current pre-qualified feature set of RTEMS, if you want to use
rtems_timer_initiate_server(), then you have to provide a custom stack
allocator.
* Given this, shouldn’t rtems_timer_initiate_server() natively use of
rtems_task_construct() rather than rtems_timer_create() as advised?
If you don't want to change the API of rtems_timer_initiate_server(),
how can you do this?
* This makes other two functions listed within SCF section 4.10 as not
directly usable, namely rtems_timer_server_fire_after() and
rtems_timer_server_fire_when() as those are to be used in
conjunction with rtems_timer_initiate_server().
You can use them, if you provide a custom stack allocator.
* In a nutshell, this compromises the overall “Timer Server” feature
in the qual-only setup of the QDP.
I just makes it a bit inconvenient to use. One option would be to
provide a new directive to construct the timer server, for example
rtems_timer_server_construct().
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