nuttx/libc/pthread/pthread_attrsetschedparam.c

96 lines
3.4 KiB
C

/****************************************************************************
* libc/pthread/pthread_attrsetschedparam.c
*
* Copyright (C) 2007-2009, 2011, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <pthread.h>
#include <string.h>
#include <sched.h>
#include <debug.h>
#include <errno.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: pthread_attr_setschedparam
*
* Description:
*
* Parameters:
* attr
* param
*
* Return Value:
* 0 if successful. Otherwise, an error code.
*
* Assumptions:
*
****************************************************************************/
int pthread_attr_setschedparam(FAR pthread_attr_t *attr,
FAR const struct sched_param *param)
{
int ret;
sdbg("attr=0x%p param=0x%p\n", attr, param);
if (!attr || !param)
{
ret = EINVAL;
}
else
{
attr->priority = (short)param->sched_priority;
#ifdef CONFIG_SCHED_SPORADIC
attr->low_priority = (uint8_t)param->sched_ss_low_priority;
attr->max_repl = (uint8_t)param->sched_ss_max_repl;
attr->repl_period.tv_sec = param->sched_ss_repl_period.tv_sec;
attr->repl_period.tv_nsec = param->sched_ss_repl_period.tv_nsec;
attr->budget.tv_sec = param->sched_ss_init_budget.tv_sec;
attr->budget.tv_nsec = param->sched_ss_init_budget.tv_nsec;
#endif
ret = OK;
}
sdbg("Returning %d\n", ret);
return ret;
}