Erwin Rol wrote:
>
> Hello All,
>
> I am (still) trying out LXRT and it looks good, but there are some
> things
> i don't really understand.
>
> First when creating linux threads with pthread_create in user space is
> it than
> always needed to also create a RT_TASK , even if it only should do
> softrealtime ?
Hi Erwin:
You must create a real time agent if you are going to use any RTAI API
function call. rt_task_init(...) creates the agent also known as the buddy
or the angel in the doc.
>
> Is there a way to get the current RT_TASK pointer (like whoami in kernel
> modules) ?
If the process had created an agent task, rt_buddy() does exactly that.
>
> Is there something to check if a RT_TASK is a hard_realtime or a soft
> realtime task ?
rt_is_hard_real_time(...) does that.
>
> Is there something like the pthread_key_create (and the like) , or is it
> posible to just use certain userspace pthread functions aslong as they
> don't use systemcalls ?
In soft real time mode you can use system calls. In hard real time mode you
cannot, but if you must use the unix_server.
Regards,
Pierre
>
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