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Diffstat (limited to 'c-user/semaphore_manager.rst')
| -rw-r--r-- | c-user/semaphore_manager.rst | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/c-user/semaphore_manager.rst b/c-user/semaphore_manager.rst index 3e6008d..13058f3 100644 --- a/c-user/semaphore_manager.rst +++ b/c-user/semaphore_manager.rst @@ -376,7 +376,8 @@ DESCRIPTION: are serviced in First In-First Out order. NOTES: - This directive will not cause the calling task to be preempted. + This directive may cause the calling task to be preempted due to an + obtain and release of the object allocator mutex. The priority inheritance and priority ceiling algorithms are only supported for local, binary semaphores that use the priority task wait queue blocking @@ -523,6 +524,9 @@ DESCRIPTION: this semaphore is reclaimed by RTEMS. NOTES: + This directive may cause the calling task to be preempted due to an + obtain and release of the object allocator mutex. + The calling task will be preempted if it is enabled by the task's execution mode and a higher priority local task is waiting on the deleted semaphore. The calling task will NOT be preempted if all of the tasks that are waiting |