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Diffstat (limited to 'cpukit/score/src/schedulerprioritychangepriority.c')
-rw-r--r-- | cpukit/score/src/schedulerprioritychangepriority.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/cpukit/score/src/schedulerprioritychangepriority.c b/cpukit/score/src/schedulerprioritychangepriority.c new file mode 100644 index 0000000000..448c603861 --- /dev/null +++ b/cpukit/score/src/schedulerprioritychangepriority.c @@ -0,0 +1,61 @@ +/** + * @file + * + * @brief Removes Thread from Thread Queue + * + * @ingroup ScoreScheduler + */ + +/* + * COPYRIGHT (c) 2011. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/score/schedulerpriorityimpl.h> + +void _Scheduler_priority_Change_priority( + const Scheduler_Control *scheduler, + Thread_Control *the_thread, + Priority_Control new_priority, + bool prepend_it +) +{ + Scheduler_priority_Context *context = + _Scheduler_priority_Get_context( scheduler ); + Scheduler_priority_Node *node = _Scheduler_priority_Node_get( the_thread ); + + _Scheduler_priority_Ready_queue_extract( + the_thread, + &node->Ready_queue, + &context->Bit_map + ); + + _Scheduler_priority_Ready_queue_update( + &node->Ready_queue, + new_priority, + &context->Bit_map, + &context->Ready[ 0 ] + ); + + if ( prepend_it ) { + _Scheduler_priority_Ready_queue_enqueue_first( + the_thread, + &node->Ready_queue, + &context->Bit_map + ); + } else { + _Scheduler_priority_Ready_queue_enqueue( + the_thread, + &node->Ready_queue, + &context->Bit_map + ); + } +} |