Add glossary terms which characterize the relationship of a scheduler to
a task.
---
c-user/glossary.rst | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/c-user/glossary.rst b/c-user/glossary.rst
index 4e375de..fe9ad4a 100644
--- a/c-user/glossary.rst
+++ b/c-user/glossary.rst
@@ -17,6 +17,10 @@ Glossary
A term used to describe an object which has been created by an
application.
+ alien scheduler
+ An alien scheduler of a :term:`task` is a :term:`scheduler` which is
not an
+ :term:`eligible scheduler`.
+
APA
This term is an acronym for Arbitrary Processor Affinity. APA
schedulers
allow a thread to have an arbitrary affinity to a processor set,
rather than
@@ -240,6 +244,10 @@ Glossary
This term is an acronym for
`Executable and Linkable Format
<https://en.wikipedia.org/wiki/Executable_and_Linkable_Format>`_.
+ eligible scheduler
+ An eligible scheduler of a :term:`task` is a :term:`scheduler` which
can be
+ used by the task to allocate a processor for the task.
+
embedded
An application that is delivered as a hidden part of a larger system.
For example, the software in a fuel-injection control system is an
@@ -340,9 +348,20 @@ Glossary
dispatch is marked as necessary, then the next thread dispatch will
make
the heir task the executing task.
+ helping scheduler
+ A helping scheduler of a :term:`task` is a :term:`scheduler` which is a
+ :term:`eligible scheduler` and which is not the :term:`home scheduler`
of
+ the task.
+
heterogeneous
A multiprocessor computer system composed of dissimilar processors.
+ home scheduler
+ The home scheduler of a :term:`task` is a :term:`scheduler` which is a
+ :term:`eligible scheduler` and which is assigned to the task during the
+ initialization or explicitly via a directive call such as
+ :c:func:`rtems_task_set_scheduler`.
+
homogeneous
A multiprocessor computer system composed of a single type of
processor.
@@ -728,6 +747,9 @@ Glossary
priority number and assign the tasks with the lowest priority number to
one processor of the set of processors owned by a scheduler instance.
+ A scheduler can be a :term:`home scheduler`, a :term:`helping
scheduler`,
+ an :term:`eligible scheduler`, and an :term:`alien scheduler` for a
task.
+
scheduler instance
A scheduler instance is a scheduling algorithm with a corresponding
context to store its internal state. Each processor in the system is
--
2.26.2
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