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-rw-r--r--nuttx/sched/pthread_setschedparam.c142
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diff --git a/nuttx/sched/pthread_setschedparam.c b/nuttx/sched/pthread_setschedparam.c
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--- a/nuttx/sched/pthread_setschedparam.c
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-/****************************************************************************
- * pthread_setschedparam.c
- *
- * Copyright (C) 2007, 2008, 2012 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 <sys/types.h>
-#include <pthread.h>
-#include <sched.h>
-#include <errno.h>
-#include <debug.h>
-
-#include "pthread_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Type Declarations
- ****************************************************************************/
-
-/****************************************************************************
- * Global Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: pthread_setschedparam
- *
- * Description:
- * The pthread_setschedparam() functions will set the scheduling policy
- * and parameters of threads. For SCHED_FIFO and SCHED_RR, the only
- * required member of the sched_param structure is the priority
- * sched_priority.
- *
- * The pthread_setschedparam() function will set the scheduling policy
- * and associated scheduling parameters for the thread whose thread ID
- * is given by 'thread' to the policy and associated parameters provided
- * in 'policy' and 'param', respectively.
- *
- * The policy parameter may have the value SCHED_FIFO, or SCHED_RR
- * (SCHED_OTHER and SCHED_SPORADIC, in particular, are not supported).
- * The SCHED_FIFO and SCHED_RR policies will have a single scheduling
- * parameter, sched_priority.
- *
- * If the pthread_setschedparam() function fails, the scheduling parameters
- * will not be changed for the target thread.
- *
- * Parameters:
- * thread - The ID of thread whose scheduling parameters will be modified.
- * policy - The new scheduling policy of the thread. Either SCHED_FIFO or
- * SCHED_RR. SCHED_OTHER and SCHED_SPORADIC are not supported.
- * param - Provides the new priority of the thread.
- *
- * Return Value:
- * 0 if successful. Otherwise, an error code identifying the cause of the
- * failure:
- *
- * EINVAL The value specified by 'policy' or one of the scheduling
- * parameters associated with the scheduling policy 'policy' is
- * invalid.
- * ENOTSUP An attempt was made to set the policy or scheduling parameters
- * to an unsupported value (SCHED_OTHER and SCHED_SPORADIC in
- * particular are not supported)
- * EPERM The caller does not have the appropriate permission to set either
- * the scheduling parameters or the scheduling policy of the
- * specified thread. Or, the implementation does not allow the
- * application to modify one of the parameters to the value
- * specified.
- * ESRCH The value specified by thread does not refer to a existing thread.
- *
- * Assumptions:
- *
- ****************************************************************************/
-
-int pthread_setschedparam(pthread_t thread, int policy, FAR const struct sched_param *param)
-{
- int ret;
-
- sdbg("thread ID=%d policy=%d param=0x%p\n", thread, policy, param);
-
- /* Set the errno to some non-zero value (failsafe) */
-
- set_errno(EINVAL);
-
- /* Let sched_setscheduler do all of the work */
-
- ret = sched_setscheduler((pid_t)thread, policy, param);
- if (ret != OK)
- {
- /* If sched_setscheduler() fails, return the errno */
-
- ret = get_errno();
- }
-
- return ret;
-}