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-rw-r--r--nuttx/sched/sched_getparam.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/nuttx/sched/sched_getparam.c b/nuttx/sched/sched_getparam.c
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index 47eab4988..000000000
--- a/nuttx/sched/sched_getparam.c
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-/************************************************************************
- * sched/sched_getparam.c
- *
- * Copyright (C) 2007, 2009 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 <sys/types.h>
-#include <sched.h>
-
-#include "os_internal.h"
-
-/************************************************************************
- * Definitions
- ************************************************************************/
-
-/************************************************************************
- * Private Type Declarations
- ************************************************************************/
-
-/************************************************************************
- * Global Variables
- ************************************************************************/
-
-/************************************************************************
- * Private Variables
- ************************************************************************/
-
-/************************************************************************
- * Private Function Prototypes
- ************************************************************************/
-
-/************************************************************************
- * Private Functions
- ************************************************************************/
-
-/************************************************************************
- * Public Functions
- ************************************************************************/
-
-/************************************************************************
- * Name: sched_getparam
- *
- * Description:
- * This function gets the scheduling priority of the task
- * specified by pid.
- *
- * Inputs:
- * pid - the task ID of the task. If pid is zero, the priority
- * of the calling task is returned.
- * param - A structure whose member sched_priority is the integer
- * priority. The task's priority is copied to the sched_priority
- * element of this structure.
- *
- * Return Value:
- * 0 (OK) if successful, otherwise -1 (ERROR).
- *
- * This function can fail if param is null or if pid does
- * not correspond to any task.
- *
- * Assumptions:
- *
- ************************************************************************/
-
-int sched_getparam (pid_t pid, struct sched_param * param)
-{
- FAR _TCB *rtcb;
- FAR _TCB *tcb;
- int ret = OK;
-
- if (!param)
- {
- return ERROR;
- }
-
- /* Check if the task to restart is the calling task */
-
- rtcb = (FAR _TCB*)g_readytorun.head;
- if ((pid == 0) || (pid == rtcb->pid))
- {
- /* Return the priority if the calling task. */
-
- param->sched_priority = (int)rtcb->sched_priority;
- }
-
- /* Ths pid is not for the calling task, we will have to look it up */
-
- else
- {
- /* Get the TCB associated with this pid */
-
- sched_lock();
- tcb = sched_gettcb(pid);
- if (!tcb)
- {
- /* This pid does not correspond to any known task */
-
- ret = ERROR;
- }
- else
- {
- /* Return the priority of the task */
-
- param->sched_priority = (int)tcb->sched_priority;
- }
-
- sched_unlock();
- }
-
- return ret;
-}
-