From 300f6a481aaf9e6d29811faca71bf7104a01492c Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 22 Jun 2016 17:09:23 +0200 Subject: 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. --- cpukit/posix/include/rtems/posix/pthreadimpl.h | 2 ++ cpukit/posix/include/rtems/posix/threadsup.h | 8 +------- 2 files changed, 3 insertions(+), 7 deletions(-) (limited to 'cpukit/posix/include/rtems') diff --git a/cpukit/posix/include/rtems/posix/pthreadimpl.h b/cpukit/posix/include/rtems/posix/pthreadimpl.h index 988246ed53..acf66822c0 100644 --- a/cpukit/posix/include/rtems/posix/pthreadimpl.h +++ b/cpukit/posix/include/rtems/posix/pthreadimpl.h @@ -68,6 +68,8 @@ RTEMS_INLINE_ROUTINE void _POSIX_Threads_Sporadic_timer_insert( ); } +void _POSIX_Threads_Sporadic_timer( Watchdog_Control *watchdog ); + /** * @brief POSIX threads sporadic budget callout. * diff --git a/cpukit/posix/include/rtems/posix/threadsup.h b/cpukit/posix/include/rtems/posix/threadsup.h index 21977be210..3bb2210d97 100644 --- a/cpukit/posix/include/rtems/posix/threadsup.h +++ b/cpukit/posix/include/rtems/posix/threadsup.h @@ -60,13 +60,7 @@ typedef struct { * @brief The low priority when using the sporadic server scheduling * policy. */ - Priority_Control low_priority; - - /** - * @brief The high priority when using the sporadic server scheduling - * policy. - */ - Priority_Control high_priority; + Priority_Node Low_priority; } Sporadic; /** This is the set of signals which are currently unblocked. */ -- cgit v1.2.3