Re: Scheduling

[Duncan Sands <duncan dot sands at math dot u-psud dot fr>]

> Please does anyone know the answer to the following questions?
> 
> 1. The operating system (OS) schedules tasks, but gnat allow us to set 
> schedule policies such as Round Robin, then how does gnat tell the OS to 
> start doing Round Robin scheduling?
> 
> 2. If someone wants to write a new scheduling policy, what files I need to 
> add and update to tell gnat to use my scheduling policy.
> 
> For example, if I want tasks to block, even though it does NOT want to use a 
> shared data object, but  if another task on the "same" cpu is running and is 
> using a shared data object that other tasks on other CPUs need that shared 
> data object.
> 
> For example, I see for Round Robin, gnat has the following files: 
> a-diroro.ads and a-diroro.adb
> 
> 3.  Which gnat files for tasking and scheduling tell the tasks to use these 
> files and how these files hookup to the tasking model?
> 
> 4. What gnat file is the Scheduling and Tasking file?  I want to see how it 
> uses the Round Robin or how scheduling works in gnat?

I suggest you try asking on comp.lang.ada.

Best wishes,

Duncan.