forked from Imagelibrary/rtems
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/**
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* @file
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*
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* @brief CPU Usage Reset
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* @ingroup libmisc_cpuuse CPU Usage
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*/
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/*
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* COPYRIGHT (c) 1989-2009
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/cpuuse.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/todimpl.h>
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#include <rtems/score/watchdogimpl.h>
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static void CPU_usage_Per_thread_handler(
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Thread_Control *the_thread
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)
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{
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#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
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_Timestamp_Set_to_zero( &the_thread->cpu_time_used );
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#else
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the_thread->cpu_time_used = 0;
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#endif
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}
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/*
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* rtems_cpu_usage_reset
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*/
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void rtems_cpu_usage_reset( void )
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{
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#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
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uint32_t processor_count;
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uint32_t processor;
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_TOD_Get_uptime( &CPU_usage_Uptime_at_last_reset );
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processor_count = rtems_smp_get_processor_count();
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for ( processor = 0 ; processor < processor_count ; ++processor ) {
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Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( processor );
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per_cpu->time_of_last_context_switch = CPU_usage_Uptime_at_last_reset;
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}
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#else
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CPU_usage_Ticks_at_last_reset = _Watchdog_Ticks_since_boot;
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#endif
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rtems_iterate_over_all_threads(CPU_usage_Per_thread_handler);
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}
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