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authorSebastian Huber <sebastian.huber@embedded-brains.de>2016-06-22 17:09:23 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2016-09-21 08:59:26 +0200
commit300f6a481aaf9e6d29811faca71bf7104a01492c (patch)
treeba8f18cedb93e3781a2f17aa989c5c805dd18d6a /cpukit/rtems/include/rtems/rtems/ratemon.h
parentclassic networking: do not reference BSP_irq_enabled_at_i8259s which is no mo... (diff)
downloadrtems-300f6a481aaf9e6d29811faca71bf7104a01492c.tar.bz2
score: Rework thread priority management
Add priority nodes which contribute to the overall thread priority. The actual priority of a thread is now an aggregation of priority nodes. The thread priority aggregation for the home scheduler instance of a thread consists of at least one priority node, which is normally the real priority of the thread. The locking protocols (e.g. priority ceiling and priority inheritance), rate-monotonic period objects and the POSIX sporadic server add, change and remove priority nodes. A thread changes its priority now immediately, e.g. priority changes are not deferred until the thread releases its last resource. Replace the _Thread_Change_priority() function with * _Thread_Priority_perform_actions(), * _Thread_Priority_add(), * _Thread_Priority_remove(), * _Thread_Priority_change(), and * _Thread_Priority_update(). Update #2412. Update #2556.
Diffstat (limited to '')
-rw-r--r--cpukit/rtems/include/rtems/rtems/ratemon.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/cpukit/rtems/include/rtems/rtems/ratemon.h b/cpukit/rtems/include/rtems/rtems/ratemon.h
index a2df13f025..50b847840f 100644
--- a/cpukit/rtems/include/rtems/rtems/ratemon.h
+++ b/cpukit/rtems/include/rtems/rtems/ratemon.h
@@ -206,6 +206,12 @@ typedef struct {
rtems_rate_monotonic_period_states state;
/**
+ * @brief A priority node for use by the scheduler job release and cancel
+ * operations.
+ */
+ Priority_Node Priority;
+
+ /**
* This field contains the length of the next period to be
* executed.
*/