65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
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/****************************************************************************
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* libs/libc/pthread/pthread_mutex_getprioceiling.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 <nuttx/mutex.h>
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#include <pthread.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: pthread_mutex_getprioceiling
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*
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* Description:
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* Return the mutex priority ceiling from the mutex.
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*
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* Input Parameters:
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* mutex - The mutex to query
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* prioceiling - Location to return the mutex priority ceiling
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*
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* Returned Value:
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* 0, if the mutex type was successfully return in 'prioceiling', or
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* EINVAL, if any NULL pointers provided.
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*
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* Assumptions:
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*
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****************************************************************************/
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int pthread_mutex_getprioceiling(FAR const pthread_mutex_t *mutex,
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FAR int *prioceiling)
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{
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#ifdef CONFIG_PRIORITY_PROTECT
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# ifdef CONFIG_PTHREAD_MUTEX_TYPES
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return -nxrmutex_getprioceiling(&mutex->mutex, prioceiling);
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# else
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return -nxmutex_getprioceiling(&mutex->mutex, prioceiling);
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# endif
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#else
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return EINVAL;
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#endif
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}
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