Hello Michel,
On 27/09/2021 18:59, Michel, John M wrote:
Could you clarify what you mean by "concurrent use and deletion of a semaphore
object is undefined behaviour on SMP systems".
sorry for being so unclear. What I meant is using the semaphore (obtain
or release) in one thread and deletin
Hello Heinz,
On 25/09/2021 12:23, Heinz Junkes wrote:
Can the rtems_semaphore_*() routines be used on SMP systems?
all the rtems_semaphore_*() routines can be used on SMP systems.
However, concurrent use and deletion of a semaphore object is undefined
behaviour on SMP systems.
--
embedded
Yes,
if you #define RTEMS_SMP you can use the MrsP protocol (for example) by
calling
rtems_semaphore_create with an attribute set containing
RTEMS_PRIORITY | RTEMS_BINARY_SEMAPHORE |
RTEMS_MULTIPROCESSOR_RESOURCE_SHARING.
You can then use rtems_semaphore_obtain, rtems_semaphore_release
, r
