diff options
Diffstat (limited to 'cpukit/score/src/schedulerdefaulttick.c')
-rw-r--r-- | cpukit/score/src/schedulerdefaulttick.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/cpukit/score/src/schedulerdefaulttick.c b/cpukit/score/src/schedulerdefaulttick.c deleted file mode 100644 index f4b6ba8578..0000000000 --- a/cpukit/score/src/schedulerdefaulttick.c +++ /dev/null @@ -1,81 +0,0 @@ -/** - * @file - * - * @ingroup RTEMSScoreScheduler - * - * @brief This source file contains the implementation of - * _Scheduler_default_Tick(). - */ - -/* - * COPYRIGHT (c) 1989-2009. - * 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <rtems/score/schedulerimpl.h> -#include <rtems/score/threadimpl.h> -#include <rtems/score/smp.h> -#include <rtems/config.h> - -void _Scheduler_default_Tick( - const Scheduler_Control *scheduler, - Thread_Control *executing -) -{ - (void) scheduler; - - /* - * If the thread is not preemptible or is not ready, then - * just return. - */ - - if ( !executing->is_preemptible ) - return; - - if ( !_States_Is_ready( executing->current_state ) ) - return; - - /* - * The cpu budget algorithm determines what happens next. - */ - - switch ( executing->budget_algorithm ) { - case THREAD_CPU_BUDGET_ALGORITHM_NONE: - break; - - case THREAD_CPU_BUDGET_ALGORITHM_RESET_TIMESLICE: - #if defined(RTEMS_SCORE_THREAD_ENABLE_EXHAUST_TIMESLICE) - case THREAD_CPU_BUDGET_ALGORITHM_EXHAUST_TIMESLICE: - #endif - if ( (int)(--executing->cpu_time_budget) <= 0 ) { - - /* - * A yield performs the ready chain mechanics needed when - * resetting a timeslice. If no other thread's are ready - * at the priority of the currently executing thread, then the - * executing thread's timeslice is reset. Otherwise, the - * currently executing thread is placed at the rear of the - * FIFO for this priority and a new heir is selected. - */ - _Thread_Yield( executing ); - executing->cpu_time_budget = - rtems_configuration_get_ticks_per_timeslice(); - } - break; - - #if defined(RTEMS_SCORE_THREAD_ENABLE_SCHEDULER_CALLOUT) - case THREAD_CPU_BUDGET_ALGORITHM_CALLOUT: - if ( --executing->cpu_time_budget == 0 ) - (*executing->budget_callout)( executing ); - break; - #endif - } -} |