Need help in figuring out how to allocate sizes to the array

[Richi Dubey]

Thanks,
 I am assuming this is the code that allocates space:

 #define RTEMS_SCHEDULER_EDF_SMP( name ) \
>      static struct { \
>        Scheduler_EDF_SMP_Context Base; \
>        Scheduler_EDF_SMP_Ready_queue Ready[ CONFIGURE_MAXIMUM_PROCESSORS
> + 1 ]; \
>      } SCHEDULER_EDF_SMP_CONTEXT_NAME( name )


How do we use or refer to this 'Base'? How do we link this 'Ready' to the
'Ready' inside the EDF_SMP_Context?

On Thu, Aug 13, 2020 at 6:17 PM Sebastian Huber <
sebastian.huber at embedded-brains.de> wrote:
>
> On 13/08/2020 14:42, Richi Dubey wrote:
>
> > I want to use arrays with size _CONFIGURE_MAXIMUM_PROCESSORS. Is it
> > okay if I define the arrays with this size while writing the scheduler
> > strong APA header file? I am asking this because the value of this
> > header gets defined at the time the test case runs while the scheduler
> > gets linked to the test case at the time of linking. So how would it
> > work?
>
> Do NOT use _CONFIGURE_MAXIMUM_PROCESSORS.
>
> In <rtems/scheduler.h> please use something similar to the EDF scheduler
> instantiation:
>
> #ifdef CONFIGURE_SCHEDULER_EDF_SMP
>    #include <rtems/score/scheduleredfsmp.h>
>
>    #ifndef CONFIGURE_MAXIMUM_PROCESSORS
>      #error "CONFIGURE_MAXIMUM_PROCESSORS must be defined to configure
> the EDF SMP scheduler"
>    #endif
>
>    #define SCHEDULER_EDF_SMP_CONTEXT_NAME( name ) \
>      SCHEDULER_CONTEXT_NAME( EDF_SMP_ ## name )
>
>    #define RTEMS_SCHEDULER_EDF_SMP( name ) \
>      static struct { \
>        Scheduler_EDF_SMP_Context Base; \
>        Scheduler_EDF_SMP_Ready_queue Ready[ CONFIGURE_MAXIMUM_PROCESSORS
> + 1 ]; \
>      } SCHEDULER_EDF_SMP_CONTEXT_NAME( name )
>
>    #define RTEMS_SCHEDULER_TABLE_EDF_SMP( name, obj_name ) \
>      { \
>        &SCHEDULER_EDF_SMP_CONTEXT_NAME( name ).Base.Base.Base, \
>        SCHEDULER_EDF_SMP_ENTRY_POINTS, \
>        SCHEDULER_EDF_MAXIMUM_PRIORITY, \
>        ( obj_name ) \
>        SCHEDULER_CONTROL_IS_NON_PREEMPT_MODE_SUPPORTED( false ) \
>      }
>
>    /* Provided for backward compatibility */
>
>    #define RTEMS_SCHEDULER_CONTEXT_EDF_SMP( name, max_cpu_count ) \
>      RTEMS_SCHEDULER_EDF_SMP( name )
>
>    #define RTEMS_SCHEDULER_CONTROL_EDF_SMP( name, obj_name ) \
>      RTEMS_SCHEDULER_TABLE_EDF_SMP( name, obj_name )
> #endif
>
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