[rtems commit] doc: rtems_task_set_affinity()
Sebastian Huber
sebh at rtems.org
Thu Apr 17 06:04:19 UTC 2014
Module: rtems
Branch: master
Commit: ed859d514af80b7be6d515cc13555a8e6fe11ceb
Changeset: http://git.rtems.org/rtems/commit/?id=ed859d514af80b7be6d515cc13555a8e6fe11ceb
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Wed Apr 16 15:39:34 2014 +0200
doc: rtems_task_set_affinity()
---
doc/user/Makefile.am | 2 +-
doc/user/smp.t | 45 ++++++++++++++-------------------------------
2 files changed, 15 insertions(+), 32 deletions(-)
diff --git a/doc/user/Makefile.am b/doc/user/Makefile.am
index 03f776d..ef91a41 100644
--- a/doc/user/Makefile.am
+++ b/doc/user/Makefile.am
@@ -169,7 +169,7 @@ smp.texi: smp.t
-n "Stack Bounds Checker" < $< > $@
stackchk.texi: stackchk.t
- $(BMENU2) -p "Symmetric Multiprocessing Services rtems_task_set_affinity - Set Task Affinity" \
+ $(BMENU2) -p "Symmetric Multiprocessing Services TASK_SET_AFFINITY - Set task processor affinity" \
-u "Top" \
-n "CPU Usage Statistics" < $< > $@
diff --git a/doc/user/smp.t b/doc/user/smp.t
index 3a27cbd..d0bb240 100644
--- a/doc/user/smp.t
+++ b/doc/user/smp.t
@@ -17,7 +17,7 @@ The application level services currently provided are:
@item @code{rtems_get_processor_count} - Get processor count
@item @code{rtems_get_current_processor} - Get current processor index
@item @code{rtems_task_get_affinity} - Get task processor affinity
- at item @code{rtems_task_set_affinity} - Set Task Affinity
+ at item @code{rtems_task_set_affinity} - Set task processor affinity
@end itemize
@c
@@ -339,18 +339,16 @@ None.
@c rtems_task_set_affinity
@c
@page
- at subsection rtems_task_set_affinity - Set Task Affinity
+ at subsection TASK_SET_AFFINITY - Set task processor affinity
@subheading CALLING SEQUENCE:
@ifset is-C
@example
-#include <rtems.h>
-
rtems_status_code rtems_task_set_affinity(
- rtems_id id,
- size_t cpusetsize,
- cpu_set_t *cpuset
+ rtems_id id,
+ size_t cpusetsize,
+ const cpu_set_t *cpuset
);
@end example
@end ifset
@@ -358,34 +356,19 @@ rtems_status_code rtems_task_set_affinity(
@ifset is-Ada
@end ifset
- at subheading STATUS CODES:
-
- at table @b
- at item RTEMS_UNSATISFIED
-The @code{cpuset} pointer argument is invalid.
-
- at item RTEMS_UNSATISFIED
-The @code{cpusetsize} does not match the value of @code{affinitysetsize}
-field in the thread attribute object.
-
- at item RTEMS_UNSATISFIED
-The @code{cpuset} did not select a valid cpu.
-
- at item RTEMS_UNSATISFIED
-The @code{cpuset} selected a cpu that was invalid.
-
- at item RTEMS_INVALID_ID
-The @code{id} is invalid.
+ at subheading DIRECTIVE STATUS CODES:
- at end table
+ at code{@value{RPREFIX}SUCCESSFUL} - successful operation@*
+ at code{@value{RPREFIX}INVALID_ADDRESS} - @code{cpuset} is NULL@*
+ at code{@value{RPREFIX}INVALID_ID} - invalid task id@*
+ at code{@value{RPREFIX}INVALID_NUMBER} - invalid processor affinity set
@subheading DESCRIPTION:
-The @code{rtems_task_set_affinity} routine is used to set the
- at code{affinity.set} field of the thread control object associated
-with @code{id}. This value controls the @code{cpuset} that the task can
-execute on.
+Sets the processor affinity set for the task specified by @code{cpuset}. A set
+bit in the affinity set means that the task can execute on this processor and a
+cleared bit means the opposite.
@subheading NOTES:
-NONE
+None.
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