From 2b5ce23b9988a66445b7c9d3cbcc692488cf718a Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Fri, 5 Feb 2021 14:19:06 +0100 Subject: score: Constify Thread_queue_First_operation Update #4230. --- cpukit/include/rtems/score/threadq.h | 13 +++++++------ cpukit/score/src/threadqops.c | 12 ++++++------ 2 files changed, 13 insertions(+), 12 deletions(-) (limited to 'cpukit') diff --git a/cpukit/include/rtems/score/threadq.h b/cpukit/include/rtems/score/threadq.h index de7ca8391b..5234019b81 100644 --- a/cpukit/include/rtems/score/threadq.h +++ b/cpukit/include/rtems/score/threadq.h @@ -496,16 +496,17 @@ typedef Thread_Control *( *Thread_queue_Surrender_operation )( ); /** - * @brief Thread queue first operation. + * @brief Gets the first thread on the queue. * - * @param[in] heads The thread queue heads. + * @param heads are heads of the thread queue. * - * @retval NULL No thread is present on the thread queue. - * @retval first The first thread of the thread queue according to the insert - * order. This thread remains on the thread queue. + * @retval NULL No thread is enqueued on the thread queue. + * + * @return Returns the first thread on the thread queue according to the queue + * order. This thread remains on the thread queue. */ typedef Thread_Control *( *Thread_queue_First_operation )( - Thread_queue_Heads *heads + const Thread_queue_Heads *heads ); /** diff --git a/cpukit/score/src/threadqops.c b/cpukit/score/src/threadqops.c index 9cf63d41f6..813edf1fcd 100644 --- a/cpukit/score/src/threadqops.c +++ b/cpukit/score/src/threadqops.c @@ -230,16 +230,16 @@ static void _Thread_queue_FIFO_extract( } static Thread_Control *_Thread_queue_FIFO_first( - Thread_queue_Heads *heads + const Thread_queue_Heads *heads ) { - Chain_Control *fifo; - Chain_Node *first; - Scheduler_Node *scheduler_node; + const Chain_Control *fifo; + const Chain_Node *first; + const Scheduler_Node *scheduler_node; fifo = &heads->Heads.Fifo; _Assert( !_Chain_Is_empty( fifo ) ); - first = _Chain_First( fifo ); + first = _Chain_Immutable_first( fifo ); scheduler_node = SCHEDULER_NODE_OF_WAIT_PRIORITY_NODE( first ); return _Scheduler_Node_get_owner( scheduler_node ); @@ -600,7 +600,7 @@ static void _Thread_queue_Priority_extract( } static Thread_Control *_Thread_queue_Priority_first( - Thread_queue_Heads *heads + const Thread_queue_Heads *heads ) { Thread_queue_Priority_queue *priority_queue; -- cgit v1.2.3