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Diffstat (limited to 'cpukit/score/src/schedulersimpleyield.c')
-rw-r--r-- | cpukit/score/src/schedulersimpleyield.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cpukit/score/src/schedulersimpleyield.c b/cpukit/score/src/schedulersimpleyield.c new file mode 100644 index 0000000000..61e80db7e2 --- /dev/null +++ b/cpukit/score/src/schedulersimpleyield.c @@ -0,0 +1,42 @@ +/* + * Scheduler Simple Handler / Yield + * + * COPYRIGHT (c) 2011. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/system.h> +#include <rtems/score/isr.h> +#include <rtems/score/scheduler.h> +#include <rtems/score/thread.h> +#include <rtems/score/schedulersimple.h> + +void _Scheduler_simple_Yield( void ) +{ + ISR_Level level; + Thread_Control *executing; + + executing = _Thread_Executing; + _ISR_Disable( level ); + + _Scheduler_simple_Ready_queue_Requeue(&_Scheduler, executing); + + _ISR_Flash( level ); + + _Scheduler_simple_Schedule(); + + if ( !_Thread_Is_heir( executing ) ) + _Thread_Dispatch_necessary = true; + + _ISR_Enable( level ); +} |