3b136771ff
to avoid it spread around all possible exit path Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/****************************************************************************
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* sched/task/task_recover.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <assert.h>
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#include <nuttx/arch.h>
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#include <nuttx/wdog.h>
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#include <nuttx/sched.h>
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#include "semaphore/semaphore.h"
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#include "wdog/wdog.h"
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#include "mqueue/mqueue.h"
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#include "pthread/pthread.h"
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#include "sched/sched.h"
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#include "task/task.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxtask_recover
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*
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* Description:
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* This function is called when a task is deleted via task_delete() or
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* via pthread_cancel. I checks checks for semaphores, message queue, and
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* watchdog timer resources stranded in bad conditions.
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*
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* Input Parameters:
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* tcb - The TCB of the terminated task or thread
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*
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* Returned Value:
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* None.
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*
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* Assumptions:
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* This function is called from task deletion logic in a safe context.
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*
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****************************************************************************/
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void nxtask_recover(FAR struct tcb_s *tcb)
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{
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#if !defined(CONFIG_DISABLE_PTHREAD) && !defined(CONFIG_PTHREAD_MUTEX_UNSAFE)
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/* Recover any mutexes still held by the canceled thread */
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pthread_mutex_inconsistent(tcb);
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#endif
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/* The task is being deleted. Cancel in pending timeout events. */
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wd_recover(tcb);
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/* If the thread holds semaphore counts or is waiting for a semaphore
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* count, then release the counts.
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*/
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nxsem_recover(tcb);
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#ifndef CONFIG_DISABLE_MQUEUE
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/* Handle cases where the thread was waiting for a message queue event */
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nxmq_recover(tcb);
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#endif
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#ifdef CONFIG_SCHED_SPORADIC
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if ((tcb->flags & TCB_FLAG_POLICY_MASK) == TCB_FLAG_SCHED_SPORADIC)
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{
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/* Stop current sporadic scheduling */
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DEBUGVERIFY(nxsched_stop_sporadic(tcb));
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}
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#endif
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}
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