Strictly atomic operations

[Sebastian Huber]

On 24/01/17 18:25, Matt Rippa wrote:
> Thanks for the replies. I'm working on porting our primary mirror 
> control system to RTEMS. 

Which API did you choose? I would use the POSIX API and the RTEMS 
master. Our focus is currently on documentation updates, warning fixes, 
ticket updates and so on to prepare the RTEMS 4.12 release.

> It's difficult to tell why taskLock() was chosen over a Mutex. Perhaps 
> it was brute force. It's just two lines of code they were trying to 
> protect (pointer assignments), and there are no higher priority tasks 
> which could possibly interfere.  I'll stick with your recommendations.

If its just an assignment of two pointers, then I would use a 
pthread_spinlock_t.

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Sebastian Huber, embedded brains GmbH

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