2012-07-14 21:30:31 +02:00
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/****************************************************************************
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2021-03-08 22:39:04 +01:00
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* fs/mqueue/mq_close.c
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2007-02-18 00:21:28 +01:00
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*
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2020-03-30 01:36:19 +02:00
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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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2007-02-18 00:21:28 +01:00
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*
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2012-07-14 21:30:31 +02:00
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****************************************************************************/
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2007-02-18 00:21:28 +01:00
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2012-07-14 21:30:31 +02:00
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/****************************************************************************
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2007-02-18 00:21:28 +01:00
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* Included Files
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2012-07-14 21:30:31 +02:00
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****************************************************************************/
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2007-02-18 00:21:28 +01:00
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2009-12-14 19:39:29 +01:00
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#include <nuttx/config.h>
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2007-02-18 00:21:28 +01:00
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#include <sched.h>
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2014-09-29 23:33:34 +02:00
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#include <mqueue.h>
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2013-02-04 17:55:38 +01:00
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#include <assert.h>
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2020-03-30 01:36:19 +02:00
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#include <debug.h>
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2012-07-14 21:30:31 +02:00
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2014-09-29 23:33:34 +02:00
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#include <nuttx/kmalloc.h>
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2016-04-11 19:14:18 +02:00
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#include <nuttx/sched.h>
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2014-09-29 23:33:34 +02:00
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#include <nuttx/mqueue.h>
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#include "inode/inode.h"
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2014-08-08 20:31:23 +02:00
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#include "mqueue/mqueue.h"
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2007-02-18 00:21:28 +01:00
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2012-07-14 21:30:31 +02:00
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/****************************************************************************
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2007-02-18 00:21:28 +01:00
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* Public Functions
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2012-07-14 21:30:31 +02:00
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****************************************************************************/
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2007-02-18 00:21:28 +01:00
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2020-12-24 13:53:17 +01:00
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/****************************************************************************
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* Name: file_mq_close
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*
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* Description:
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* This is an internal OS interface. It is functionally equivalent to
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* mq_close() except that:
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*
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* - It is not a cancellation point, and
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* - It does not modify the errno value.
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*
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* See comments with mq_close() for a more complete description of the
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* behavior of this function
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*
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* Input Parameters:
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* mq - Message queue descriptor.
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*
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* Returned Value:
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* This is an internal OS interface and should not be used by applications.
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* It follows the NuttX internal error return policy: Zero (OK) is
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* returned on success. A negated errno value is returned on failure.
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*
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****************************************************************************/
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int file_mq_close(FAR struct file *mq)
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{
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return file_close(mq);
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}
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2020-05-03 22:31:05 +02:00
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/****************************************************************************
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* Name: nxmq_close
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*
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* Description:
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* This is an internal OS interface. It is functionally equivalent to
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* mq_close() except that:
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*
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* - It is not a cancellation point, and
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* - It does not modify the errno value.
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*
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* See comments with mq_close() for a more complete description of the
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* behavior of this function
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*
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* Input Parameters:
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* mqdes - Message queue descriptor.
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*
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* Returned Value:
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* This is an internal OS interface and should not be used by applications.
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* It follows the NuttX internal error return policy: Zero (OK) is
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* returned on success. A negated errno value is returned on failure.
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*
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****************************************************************************/
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int nxmq_close(mqd_t mqdes)
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{
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2020-12-22 15:02:48 +01:00
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return nx_close(mqdes);
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2020-05-03 22:31:05 +02:00
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}
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2016-04-11 19:14:18 +02:00
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/****************************************************************************
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* Name: mq_close
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*
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* Description:
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* This function is used to indicate that the calling task is finished
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* with the specified message queue mqdes. The mq_close() deallocates
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* any system resources allocated by the system for use by this task for
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* its message queue.
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*
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* If the calling task has attached a notification to the message queue
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* via this mqdes, this attachment will be removed and the message queue
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* is available for another process to attach a notification.
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*
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2018-03-13 16:52:27 +01:00
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* Input Parameters:
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2016-04-11 19:14:18 +02:00
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* mqdes - Message queue descriptor.
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*
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2018-02-01 17:00:02 +01:00
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* Returned Value:
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2016-04-11 19:14:18 +02:00
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* 0 (OK) if the message queue is closed successfully,
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* otherwise, -1 (ERROR).
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*
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* Assumptions:
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2017-10-10 16:43:10 +02:00
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* - The behavior of a task that is blocked on either a [nx]mq_send() or
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* [nx]mq_receive() is undefined when mq_close() is called.
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2016-04-11 19:14:18 +02:00
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* - The results of using this message queue descriptor after a successful
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* return from mq_close() is undefined.
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*
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****************************************************************************/
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int mq_close(mqd_t mqdes)
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{
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2020-12-22 15:02:48 +01:00
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return close(mqdes);
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2007-02-18 00:21:28 +01:00
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}
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