forked from Archive/PX4-Autopilot
113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
|
/************************************************************************
|
||
|
|
* sched/sched_removeblocked.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
||
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
||
|
|
*
|
||
|
|
* 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 <queue.h>
|
||
|
|
#include <assert.h>
|
||
|
|
|
||
|
|
#include "os_internal.h"
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Definitions
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Private Type Declarations
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Global Variables
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Private Variables
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Private Function Prototypes
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Public Functions
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
/************************************************************************
|
||
|
|
* Name: sched_removeblocked
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* This function removes a TCB from one of the blocked
|
||
|
|
* state task lists as inferreded from the task_state
|
||
|
|
* inside the TCB.
|
||
|
|
*
|
||
|
|
* Inputs:
|
||
|
|
* btcb - Points to the TCB that is blocked
|
||
|
|
*
|
||
|
|
* Return Value:
|
||
|
|
* None
|
||
|
|
*
|
||
|
|
* Assumptions:
|
||
|
|
* - The caller has established a critical section before
|
||
|
|
* calling this function.
|
||
|
|
*
|
||
|
|
************************************************************************/
|
||
|
|
|
||
|
|
void sched_removeblocked(FAR _TCB *btcb)
|
||
|
|
{
|
||
|
|
tstate_t task_state = btcb->task_state;
|
||
|
|
|
||
|
|
/* Make sure the TCB is in a valid blocked state */
|
||
|
|
|
||
|
|
ASSERT(task_state >= FIRST_BLOCKED_STATE &&
|
||
|
|
task_state <= LAST_BLOCKED_STATE);
|
||
|
|
|
||
|
|
/* Remove the TCB from the blocked task list associated
|
||
|
|
* with this state
|
||
|
|
*/
|
||
|
|
|
||
|
|
dq_rem((FAR dq_entry_t*)btcb, (dq_queue_t*)g_tasklisttable[task_state].list);
|
||
|
|
|
||
|
|
/* Make sure the TCB's state corresponds to not being in
|
||
|
|
* any list
|
||
|
|
*/
|
||
|
|
|
||
|
|
btcb->task_state = TSTATE_TASK_INVALID;
|
||
|
|
}
|
||
|
|
|