From 0221da5f56353c9b238ef51d5a24802ba67b8c56 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 12 Oct 2021 08:26:39 +0200 Subject: rtems: Fix rate monotonic statistics The rate monotonic period statistics were affected by rtems_cpu_usage_reset(). The logic to detect and work around a CPU usage reset was broken. The Thread_Contol::cpu_time_used is changed to contain the processor time used throughout the entire lifetime of the thread. The new member Thread_Contol::cpu_time_used_at_last_reset is added to contain the processor time used at the time of the last reset through rtems_cpu_usage_reset(). This decouples the resets of the CPU usage and the rate monotonic period statistics. Update #4528. --- cpukit/include/rtems/rtems/ratemonimpl.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'cpukit/include/rtems/rtems') diff --git a/cpukit/include/rtems/rtems/ratemonimpl.h b/cpukit/include/rtems/rtems/ratemonimpl.h index 7e42a0437c..62327c5b09 100644 --- a/cpukit/include/rtems/rtems/ratemonimpl.h +++ b/cpukit/include/rtems/rtems/ratemonimpl.h @@ -92,7 +92,7 @@ RTEMS_INLINE_ROUTINE Rate_monotonic_Control *_Rate_monotonic_Get( void _Rate_monotonic_Timeout( Watchdog_Control *watchdog ); /** - * @brief _Rate_monotonic_Get_status( + * @brief Gets the rate monotonic CPU usage status. * * This routine is invoked to compute the elapsed wall time and cpu * time for a period. @@ -102,11 +102,8 @@ void _Rate_monotonic_Timeout( Watchdog_Control *watchdog ); * since the period was initiated. * @param[out] cpu_since_last_period is set to the cpu time used by the * owning thread since the period was initiated. - * - * @retval This routine returns true if the status can be determined - * and false otherwise. */ -bool _Rate_monotonic_Get_status( +void _Rate_monotonic_Get_status( const Rate_monotonic_Control *the_period, Timestamp_Control *wall_since_last_period, Timestamp_Control *cpu_since_last_period -- cgit v1.2.3