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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplCPUUsageReporting
*
* @brief This source file contains the definition of
* rtems_cpu_usage_reset().
*/
/*
* COPYRIGHT (c) 1989-2009
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/cpuuse.h>
#include <rtems/rtems/scheduler.h>
#include <rtems/score/percpu.h>
#include <rtems/score/todimpl.h>
#include <rtems/score/schedulerimpl.h>
#include <rtems/score/watchdogimpl.h>
#include "cpuuseimpl.h"
static bool CPU_usage_Per_thread_handler(
Thread_Control *the_thread,
void *arg
)
{
const Scheduler_Control *scheduler;
ISR_lock_Context state_lock_context;
ISR_lock_Context scheduler_lock_context;
_Thread_State_acquire( the_thread, &state_lock_context );
scheduler = _Thread_Scheduler_get_home( the_thread );
_Scheduler_Acquire_critical( scheduler, &scheduler_lock_context );
the_thread->cpu_time_used_at_last_reset =
_Thread_Get_CPU_time_used_locked( the_thread );
_Scheduler_Release_critical( scheduler, &scheduler_lock_context );
_Thread_State_release( the_thread, &state_lock_context );
return false;
}
/*
* rtems_cpu_usage_reset
*/
void rtems_cpu_usage_reset( void )
{
uint32_t cpu_count;
uint32_t cpu_index;
_TOD_Get_uptime( &CPU_usage_Uptime_at_last_reset );
cpu_count = rtems_scheduler_get_processor_maximum();
for ( cpu_index = 0 ; cpu_index < cpu_count ; ++cpu_index ) {
Per_CPU_Control *cpu = _Per_CPU_Get_by_index( cpu_index );
cpu->cpu_usage_timestamp = CPU_usage_Uptime_at_last_reset;
}
rtems_task_iterate(CPU_usage_Per_thread_handler, NULL);
}
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