[Xenomai] 0-priority task in Cobalt

[Xenomai] 0-priority task in Cobalt

[George Broz]

Hello,

In the native skin for Xenomai 2.6.x, it was possible to create a
0-priority task - a Xenomai task that spends its life in secondary
mode except when calling/interacting with Xenomai services that would
temporarily promote it to primary mode.

Is it possible to create a 0-priority task through the Cobalt skin?
What are the calls/arguments needed?


Thanks in advance!

--George Broz
Moog Industrial Group

Re: [Xenomai] 0-priority task in Cobalt

[Philippe Gerum]

On 04/12/2017 01:44 AM, George Broz wrote:
> Hello,
> 
> In the native skin for Xenomai 2.6.x, it was possible to create a
> 0-priority task - a Xenomai task that spends its life in secondary
> mode except when calling/interacting with Xenomai services that would
> temporarily promote it to primary mode.
> 
> Is it possible to create a 0-priority task through the Cobalt skin?
> What are the calls/arguments needed?
> 
> 

The equivalent is creating a thread using pthread_create() with the
SCHED_OTHER policy (which requires priority 0 in the sched_param
settings). libcobalt's pthread_setschedparam() can be used for the same
purpose on an existing thread.

-- 
Philippe.