68d1a52417
Initial implementation of `sched_getparam()` and `sched_getscheduler()` POSIX APIs as a part of PSE53 `_POSIX_PRIORITY_SCHEDULING` option group. Both functions are actually placeholders and just return `ENOSYS` since Zephyr does not yet support processes or process scheduling. Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>
72 lines
1.1 KiB
C
72 lines
1.1 KiB
C
/*
|
|
* Copyright (c) 2018-2023 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "pthread_sched.h"
|
|
|
|
#include <zephyr/kernel.h>
|
|
#include <zephyr/posix/sched.h>
|
|
|
|
/**
|
|
* @brief Get minimum priority value for a given policy
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int sched_get_priority_min(int policy)
|
|
{
|
|
if (!valid_posix_policy(policy)) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Get maximum priority value for a given policy
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int sched_get_priority_max(int policy)
|
|
{
|
|
if (IS_ENABLED(CONFIG_COOP_ENABLED) && policy == SCHED_FIFO) {
|
|
return CONFIG_NUM_COOP_PRIORITIES - 1;
|
|
} else if (IS_ENABLED(CONFIG_PREEMPT_ENABLED) &&
|
|
(policy == SCHED_RR || policy == SCHED_OTHER)) {
|
|
return CONFIG_NUM_PREEMPT_PRIORITIES - 1;
|
|
}
|
|
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* @brief Get scheduling parameters
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int sched_getparam(pid_t pid, struct sched_param *param)
|
|
{
|
|
ARG_UNUSED(pid);
|
|
ARG_UNUSED(param);
|
|
|
|
errno = ENOSYS;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* @brief Get scheduling policy
|
|
*
|
|
* See IEEE 1003.1
|
|
*/
|
|
int sched_getscheduler(pid_t pid)
|
|
{
|
|
ARG_UNUSED(pid);
|
|
|
|
errno = ENOSYS;
|
|
|
|
return -1;
|
|
}
|