diff options
Diffstat (limited to '')
-rw-r--r-- | cpukit/score/src/threadgetcputimeused.c | 63 |
1 files changed, 45 insertions, 18 deletions
diff --git a/cpukit/score/src/threadgetcputimeused.c b/cpukit/score/src/threadgetcputimeused.c index 7406da0bf3..82ad7a3043 100644 --- a/cpukit/score/src/threadgetcputimeused.c +++ b/cpukit/score/src/threadgetcputimeused.c @@ -1,24 +1,37 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * * @ingroup RTEMSScoreThread * * @brief This source file contains the implementation of - * _Thread_Get_CPU_time_used(). + * _Thread_Get_CPU_time_used() and _Thread_Get_CPU_time_used_locked(). */ /* - * Copyright (c) 2016 embedded brains GmbH. All rights reserved. + * Copyright (c) 2016 embedded brains GmbH & Co. KG * - * embedded brains GmbH - * Dornierstr. 4 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> + * 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. * - * 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. + * 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 @@ -37,25 +50,39 @@ static bool _Thread_Is_scheduled( const Thread_Control *the_thread ) #endif } -void _Thread_Get_CPU_time_used( - Thread_Control *the_thread, - Timestamp_Control *cpu_time_used +Timestamp_Control _Thread_Get_CPU_time_used_locked( + Thread_Control *the_thread ) { + _Assert( _Thread_State_is_owner( the_thread ) ); + _Assert( + _ISR_lock_Is_owner( + &_Scheduler_Get_context( _Thread_Scheduler_get_home( the_thread ) )->Lock + ) + ); + + if ( _Thread_Is_scheduled( the_thread ) ) { + _Thread_Update_CPU_time_used( the_thread, _Thread_Get_CPU( the_thread ) ); + } + + return the_thread->cpu_time_used; +} + +Timestamp_Control _Thread_Get_CPU_time_used( Thread_Control *the_thread ) +{ const Scheduler_Control *scheduler; ISR_lock_Context state_lock_context; ISR_lock_Context scheduler_lock_context; + Timestamp_Control cpu_time_used; _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; + cpu_time_used = _Thread_Get_CPU_time_used_locked( the_thread ); _Scheduler_Release_critical( scheduler, &scheduler_lock_context ); _Thread_State_release( the_thread, &state_lock_context ); + + return cpu_time_used; } |