Preetam Joshi wrote:
> Hi all,
> 
> I am using the rt_sem_p and rt_sem_v API's in my semaphore application.
> What
> i would like to know is whether the API rt_sem_p is a blocking call or not?
> Reasons being when i use it in my code the task does not block when it
> encounters rt_sem_p ?
> 

Check http://www.xenomai.org/index.php/API_documentation

If you are unsure what the state your your semaphore is before calling
rt_sem_p, have a look at rt_sem_inquire().

Jan