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/*
* Copyright (c) 2016 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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/threadimpl.h>
#include <rtems/score/schedulerimpl.h>
static bool _Thread_Is_scheduled( const Thread_Control *the_thread )
{
#if defined(RTEMS_SMP)
return the_thread->Scheduler.state == THREAD_SCHEDULER_SCHEDULED;
#else
return _Thread_Is_executing( the_thread );
#endif
}
void _Thread_Get_CPU_time_used(
Thread_Control *the_thread,
Timestamp_Control *cpu_time_used
)
{
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 );
if ( _Thread_Is_scheduled( the_thread ) ) {
_Thread_Update_CPU_time_used( the_thread, _Thread_Get_CPU( the_thread ) );
}
*cpu_time_used = the_thread->cpu_time_used;
_Scheduler_Release_critical( scheduler, &scheduler_lock_context );
_Thread_State_release( the_thread, &state_lock_context );
}
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