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doc: Minor supplements to microkernel task services

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Adds in a couple of pieces of useful information which improve
alignment between task documentation and fiber documentation.

Change-Id: I04b65aa6d125842205de3dd6a65dbe2b8e6853d6
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
This commit is contained in:
Allan Stephens 2015-08-31 13:14:44 -04:00 committed by Anas Nashif
parent 1e3c8902ec
commit e5f3e42b3c
1 changed files with 8 additions and 3 deletions
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11
doc/kernel/microkernel/microkernel_tasks.rst
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@ -11,14 +11,18 @@ an application's processing. It is is normally used to perform processing that
is too lengthy or complex to be performed by a fiber or an ISR.
A microkernel application can define any number of application tasks. Each
task has a name that uniquely identifies it. Other important task properties
that must be specified include:
task has a name that uniquely identifies it, allowing it to be directly
referenced by other tasks. Other properties that must be specified when a task
is defined include:
* a memory region that is used for its stack and for other execution context
information,
* a function that is invoked when the task starts executing, and
* a priority that is used by the microkernel scheduler.
A task's entry point function takes no arguments, so there is no need to
define any argument values for it.
The microkernel automatically defines a system task, known as the *idle task*,
which has lowest priority. This task is used during system initialization,
and subsequently executes only when there is no other work for the system to do.
@ -128,7 +132,8 @@ by the microkernel until one of the following occurs:
* The task terminates itself by returning from its entry point function.
* The task aborts itself by performing an operation that causes a fatal error.
* The task aborts itself by performing an operation that causes a fatal error,
or by calling :c:func:`task_abort()`.
Time Slicing
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