nuttx/sched/sched/sched_removeblocked.c
Alin Jerpelea 8935ac4cc3 sched: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can mograte the licenses
to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-09 01:21:53 -08:00

76 lines
2.5 KiB
C

/****************************************************************************
* sched/sched/sched_removeblocked.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <queue.h>
#include <assert.h>
#include "sched/sched.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxsched_remove_blocked
*
* Description:
* This function removes a TCB from one of the blocked state task
* lists as inferred from the task_state inside the TCB.
*
* Input Parameters:
* btcb - Points to the TCB that is blocked
*
* Returned Value:
* None
*
* Assumptions:
* - The caller has established a critical section before
* calling this function.
*
****************************************************************************/
void nxsched_remove_blocked(FAR struct tcb_s *btcb)
{
tstate_t task_state = btcb->task_state;
/* Make sure the TCB is in a valid blocked state */
DEBUGASSERT(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, TLIST_BLOCKED(task_state));
/* Make sure the TCB's state corresponds to not being in
* any list
*/
btcb->task_state = TSTATE_TASK_INVALID;
}