| Commit message (Collapse) | Author | Age | Files | Lines |
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The function to change a thread priority was too complex. Simplify it
with a new scheduler operation. This increases the average case
performance due to the simplified logic. The interrupt disabled
critical section is a bit prolonged since now the extract, update and
enqueue steps are executed atomically. This should however not impact
the worst-case interrupt latency since at least for the Deterministic
Priority Scheduler this sequence can be carried out with a wee bit of
instructions and no loops.
Add _Scheduler_Change_priority() to replace the sequence of
- _Thread_Set_transient(),
- _Scheduler_Extract(),
- _Scheduler_Enqueue(), and
- _Scheduler_Enqueue_first().
Delete STATES_TRANSIENT, _States_Is_transient() and
_Thread_Set_transient() since this state is now superfluous.
With this change it is possible to get rid of the
SCHEDULER_SMP_NODE_IN_THE_AIR state. This considerably simplifies the
implementation of the new SMP locking protocols.
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Do not allocate the scheduler control structures from the workspace.
This is a preparation step for configuration of clustered/partitioned
schedulers on SMP.
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Scheduler operations must be free of a global scheduler context to
enable partitioned/clustered scheduling.
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Move implementation specific parts of scheduler.h and scheduler.inl into
new header file schedulerimpl.h. The scheduler.h contains now only the
application visible API.
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Move implementation specific parts of schedulerpriority.h and
schedulerpriority.inl into new header file schedulerpriorityimpl.h. The
schedulerpriority.h contains now only the application visible API.
Add missing includes. Remove superfluous includes.
Move declaration of _Priority_Bit_map to prioritybitmap.inl since this
variable is used only here.
Remove second declaration of _Priority_Major_bit_map.
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This patch is a task from GCI 2012 which improves the Doxygen
comments in the RTEMS source.
http://www.google-melange.com/gci/task/view/google/gci2012/7970221
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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PR 1896/cpukit
* sapi/include/confdefs.h, score/Makefile.am, score/preinstall.am: Add
Earliest Deadline First (EDF) Scheduling Algorithm implementation.
* score/include/rtems/score/scheduleredf.h, score/src/scheduleredf.c,
score/src/scheduleredfallocate.c, score/src/scheduleredfblock.c,
score/src/scheduleredfenqueue.c,
score/src/scheduleredfenqueuefirst.c,
score/src/scheduleredfextract.c, score/src/scheduleredffree.c,
score/src/scheduleredfprioritycompare.c,
score/src/scheduleredfreleasejob.c, score/src/scheduleredfschedule.c,
score/src/scheduleredfunblock.c, score/src/scheduleredfupdate.c,
score/src/scheduleredfyield.c: New files.
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