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diff --git a/c-user/multiprocessing/directives.rst b/c-user/multiprocessing/directives.rst new file mode 100644 index 0000000..afa3244 --- /dev/null +++ b/c-user/multiprocessing/directives.rst @@ -0,0 +1,44 @@ +.. SPDX-License-Identifier: CC-BY-SA-4.0 + +.. Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR) + +Directives +========== + +This section details the additional directives required to support RTEMS in a +multiprocessor configuration. A subsection is dedicated to each of this +manager's directives and describes the calling sequence, related constants, +usage, and status codes. + +.. raw:: latex + + \clearpage + +.. index:: announce arrival of package +.. index:: rtems_multiprocessing_announce + +.. _rtems_multiprocessing_announce: + +MULTIPROCESSING_ANNOUNCE - Announce the arrival of a packet +----------------------------------------------------------- + +CALLING SEQUENCE: + .. code-block:: c + + void rtems_multiprocessing_announce( void ); + +DIRECTIVE STATUS CODES: + NONE + +DESCRIPTION: + This directive informs RTEMS that a multiprocessing communications packet + has arrived from another node. This directive is called by the + user-provided MPCI, and is only used in multiprocessor configurations. + +NOTES: + This directive is typically called from an ISR. + + This directive will almost certainly cause the calling task to be + preempted. + + This directive does not generate activity on remote nodes. |