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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup POSIX_PTHREAD Private POSIX Threads
*
* @brief Translate sched_param into SuperCore Terms
*/
/*
* 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 <pthread.h>
#include <errno.h>
#include <rtems/posix/pthreadimpl.h>
#include <rtems/score/threadcpubudget.h>
int _POSIX_Thread_Translate_to_sched_policy(
const Thread_CPU_budget_operations *operations
)
{
if ( operations == NULL ) {
return SCHED_FIFO;
}
if ( operations == &_Thread_CPU_budget_exhaust_timeslice ) {
return SCHED_RR;
}
#if defined(RTEMS_POSIX_API)
if ( operations == &_POSIX_Threads_Sporadic_budget ) {
return SCHED_SPORADIC;
}
#endif
return SCHED_OTHER;
}
int _POSIX_Thread_Translate_sched_param(
int policy,
const struct sched_param *param,
Thread_Configuration *config
)
{
config->cpu_budget_operations = NULL;
if ( policy == SCHED_FIFO ) {
return 0;
}
if ( policy == SCHED_OTHER ) {
config->cpu_budget_operations = &_Thread_CPU_budget_reset_timeslice;
return 0;
}
if ( policy == SCHED_RR ) {
config->cpu_budget_operations = &_Thread_CPU_budget_exhaust_timeslice;
return 0;
}
#if defined(RTEMS_POSIX_API)
if ( policy == SCHED_SPORADIC ) {
if ( (param->sched_ss_repl_period.tv_sec == 0) &&
(param->sched_ss_repl_period.tv_nsec == 0) )
return EINVAL;
if ( (param->sched_ss_init_budget.tv_sec == 0) &&
(param->sched_ss_init_budget.tv_nsec == 0) )
return EINVAL;
if ( _Timespec_To_ticks( ¶m->sched_ss_repl_period ) <
_Timespec_To_ticks( ¶m->sched_ss_init_budget ) )
return EINVAL;
config->cpu_budget_operations = &_POSIX_Threads_Sporadic_budget;
return 0;
}
#endif
return EINVAL;
}
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