forked from Archive/PX4-Autopilot
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/****************************************************************************
|
|
* libc/pthread/pthread_attrsetschedpolicy.c
|
|
*
|
|
* Copyright (C) 2007-2009, 2011 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>
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Type Declarations
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Global Variables
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Variables
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Function: pthread_attr_setschedpolicy
|
|
*
|
|
* Description:
|
|
* Set the scheduling algorithm attribute.
|
|
*
|
|
* Parameters:
|
|
* attr
|
|
* policy
|
|
*
|
|
* Return Value:
|
|
* 0 if successful. Otherwise, an error code.
|
|
*
|
|
* Assumptions:
|
|
*
|
|
****************************************************************************/
|
|
|
|
int pthread_attr_setschedpolicy(FAR pthread_attr_t *attr, int policy)
|
|
{
|
|
int ret;
|
|
|
|
sdbg("attr=0x%p policy=%d\n", attr, policy);
|
|
|
|
#if CONFIG_RR_INTERVAL > 0
|
|
if (!attr || (policy != SCHED_FIFO && policy != SCHED_RR))
|
|
#else
|
|
if (!attr || policy != SCHED_FIFO )
|
|
#endif
|
|
{
|
|
ret = EINVAL;
|
|
}
|
|
else
|
|
{
|
|
attr->policy = policy;
|
|
ret = OK;
|
|
}
|
|
|
|
sdbg("Returning %d\n", ret);
|
|
return ret;
|
|
}
|