diff options
| -rw-r--r-- | c-user/message/directives.rst | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/c-user/message/directives.rst b/c-user/message/directives.rst index f320350..7317eb4 100644 --- a/c-user/message/directives.rst +++ b/c-user/message/directives.rst @@ -891,10 +891,6 @@ queue. :c:macro:`RTEMS_UNSATISFIED` The queue was empty. -:c:macro:`RTEMS_UNSATISFIED` - The queue was flushed while the calling task was waiting to receive a - message. - :c:macro:`RTEMS_TIMEOUT` The timeout happened while the calling task was waiting to receive a message @@ -1039,17 +1035,22 @@ present on the queue, count is set to zero. The ``count`` parameter was `NULL <https://en.cppreference.com/w/c/types/NULL>`_. +.. rubric:: NOTES: + +The directive does not flush tasks waiting to receive a message from the +:term:`wait queue` of the message queue. + .. rubric:: CONSTRAINTS: The following constraints apply to this directive: -* The directive may be called from within task context. - * The directive may be called from within interrupt context. -* When the directive operates on a remote object, the directive sends a message - to the remote node and waits for a reply. This will preempt the calling - task. +* The directive may be called from within device driver initialization context. + +* The directive may be called from within task context. + +* The directive will not cause the calling task to be preempted. .. Generated from spec:/rtems/message/if/buffer |