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2007-05-10 Joel Sherrill <joel.sherrill@OARcorp.com>

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PR 1241/rtems
	* score/src/threadchangepriority.c, score/src/threadqrequeue.c: Close
	critical section window added with requeueing support.
This commit is contained in:
Joel Sherrill
2007-05-10 18:47:35 +00:00
parent a32835a34a
commit 45d406f8e9
3 changed files with 18 additions and 8 deletions
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cpukit/ChangeLog
+6
View File
@@ -1,3 +1,9 @@
2007-05-10 Joel Sherrill <joel.sherrill@OARcorp.com>
PR 1241/rtems
* score/src/threadchangepriority.c, score/src/threadqrequeue.c: Close
critical section window added with requeueing support.
2007-05-10 Ralf Corsépius <ralf.corsepius@rtems.org>
* libcsupport/include/rtems/cdefs.h,
cpukit/score/src/threadchangepriority.c
+3 -5
View File
@@ -95,13 +95,11 @@ void _Thread_Change_priority(
*/
state = the_thread->current_state;
if ( state != STATES_TRANSIENT ) {
if ( _States_Is_waiting_on_thread_queue( state ) ) {
_ISR_Enable( level );
_Thread_queue_Requeue( the_thread->Wait.queue, the_thread );
_ISR_Disable( level ); /* redisable so state is cleared with ISR off */
}
the_thread->current_state = _States_Clear( STATES_TRANSIENT, state );
_ISR_Enable( level );
if ( _States_Is_waiting_on_thread_queue( state ) ) {
_Thread_queue_Requeue( the_thread->Wait.queue, the_thread );
}
return;
}
cpukit/score/src/threadqrequeue.c
+9 -3
View File
@@ -47,8 +47,9 @@ void _Thread_queue_Requeue(
)
{
/* just in case the thread really wasn't blocked here */
if ( !the_thread_queue )
if ( !the_thread_queue ) {
return;
}
switch ( the_thread_queue->discipline ) {
case THREAD_QUEUE_DISCIPLINE_FIFO:
@@ -56,12 +57,17 @@ void _Thread_queue_Requeue(
break;
case THREAD_QUEUE_DISCIPLINE_PRIORITY: {
Thread_queue_Control *tq = the_thread_queue;
ISR_Level level;
_Thread_queue_Enter_critical_section( tq );
_ISR_Disable( level );
if ( _States_Is_waiting_on_thread_queue( the_thread->current_state ) ) {
_Thread_queue_Enter_critical_section( tq );
_Thread_queue_Extract_priority_helper( tq, the_thread, TRUE );
_Thread_queue_Enqueue_priority( tq, the_thread );
}
_ISR_Enable( level );
break;
}
}
}
}