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fs/mqueue/mq_check.c: group level error check for mq operations
- This commit creates an api mq_check() for mqueue module. This api will check the mq descriptor value in the mq des list of the calling task's group. This will help to remove unwanted error in mq_send and mq_receive apis.
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ritesh55555
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Dec 10, 2024
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/**************************************************************************** | ||
* | ||
* Copyright 2024 Samsung Electronics All Rights Reserved. | ||
* | ||
* Licensed 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. | ||
* | ||
****************************************************************************/ | ||
/************************************************************************ | ||
* fs/mqueue/mq_check.c | ||
* | ||
* Copyright (C) 2007, 2009, 2014 Gregory Nutt. All rights reserved. | ||
* Author: Gregory Nutt <[email protected]> | ||
* | ||
* 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. | ||
* | ||
************************************************************************/ | ||
|
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/************************************************************************ | ||
* Included Files | ||
************************************************************************/ | ||
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#include <tinyara/config.h> | ||
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#include <stdio.h> | ||
#include <mqueue.h> | ||
#include <sched.h> | ||
#include <assert.h> | ||
#include <errno.h> | ||
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#include <tinyara/mqueue.h> | ||
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/************************************************************************ | ||
* Public Functions | ||
************************************************************************/ | ||
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/************************************************************************ | ||
* Name: mq_check | ||
* | ||
* Description: | ||
* This function checks if a message queue descriptor is present in the | ||
* calling task's group list of mq des. | ||
* | ||
* Parameters: | ||
* mqdes - Message queue descriptor | ||
* | ||
* Return Value: | ||
* OK - if mqdes is present in the calling task group list of mqdes | ||
* ERROR - if mqdes is not present in the calling task group of mqdes | ||
* | ||
************************************************************************/ | ||
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int mq_check(mqd_t mqdes) | ||
{ | ||
int ret = ERROR; | ||
mqd_t mqdes_ptr; | ||
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FAR struct task_group_s *group = sched_self()->group; | ||
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sched_lock(); | ||
mqdes_ptr = (mqd_t)sq_peek(&group->tg_msgdesq); | ||
while (mqdes_ptr) { | ||
if (mqdes_ptr == mqdes) { | ||
ret = OK; | ||
break; | ||
} | ||
mqdes_ptr = (mqd_t)sq_next(mqdes_ptr); | ||
} | ||
sched_unlock(); | ||
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return ret; | ||
} |
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