7cb1f3b3c0
Task group could find from process id, replace group_findbypid to task_getgroup to simplify the search logic Signed-off-by: chao an <anchao@lixiang.com>
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/****************************************************************************
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* sched/task/task_getgroup.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 <sched.h>
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#include "sched/sched.h"
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#include "group/group.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: task_getgroup
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*
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* Description:
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* Given a task ID, return the group structure of this task.
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*
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* Input Parameters:
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* pid - The task ID to use in the lookup.
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*
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* Returned Value:
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* On success, a pointer to the group task structure is returned. This
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* function can fail only if there is no group that corresponds to the
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* grouped ID.
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*
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* Assumptions:
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* Called during when signally tasks in a safe context. No special
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* precautions should be required here.
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*
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****************************************************************************/
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FAR struct task_group_s *task_getgroup(pid_t pid)
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{
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FAR struct tcb_s *tcb = nxsched_get_tcb(pid);
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if (tcb)
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{
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return tcb->group;
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}
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return NULL;
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}
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