diff options
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/src/schedulerprioritychangepriority.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/cpukit/score/src/schedulerprioritychangepriority.c b/cpukit/score/src/schedulerprioritychangepriority.c index f883e02d43..04599f5c74 100644 --- a/cpukit/score/src/schedulerprioritychangepriority.c +++ b/cpukit/score/src/schedulerprioritychangepriority.c @@ -21,16 +21,30 @@ #include <rtems/score/schedulerpriorityimpl.h> -Scheduler_Void_or_thread _Scheduler_priority_Change_priority( +Scheduler_Void_or_thread _Scheduler_priority_Update_priority( const Scheduler_Control *scheduler, - Thread_Control *the_thread, - Priority_Control new_priority, - bool prepend_it + Thread_Control *the_thread ) { - Scheduler_priority_Context *context = - _Scheduler_priority_Get_context( scheduler ); - Scheduler_priority_Node *node = _Scheduler_priority_Thread_get_node( the_thread ); + Scheduler_priority_Context *context; + Scheduler_priority_Node *node; + unsigned int priority; + bool prepend_it; + + if ( !_Thread_Is_ready( the_thread ) ) { + /* Nothing to do */ + SCHEDULER_RETURN_VOID_OR_NULL; + } + + node = _Scheduler_priority_Thread_get_node( the_thread ); + priority = _Scheduler_Node_get_priority( &node->Base, &prepend_it ); + + if ( priority == node->Ready_queue.current_priority ) { + /* Nothing to do */ + SCHEDULER_RETURN_VOID_OR_NULL; + } + + context = _Scheduler_priority_Get_context( scheduler ); _Scheduler_priority_Ready_queue_extract( &the_thread->Object.Node, @@ -40,7 +54,7 @@ Scheduler_Void_or_thread _Scheduler_priority_Change_priority( _Scheduler_priority_Ready_queue_update( &node->Ready_queue, - new_priority, + priority, &context->Bit_map, &context->Ready[ 0 ] ); |