78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/****************************************************************************
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* libs/libc/pthread/pthread_barrierdestroy.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 <pthread.h>
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#include <semaphore.h>
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#include <errno.h>
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#include <debug.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_barrier_destroy
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*
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* Description:
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* The pthread_barrier_destroy() function destroys the barrier referenced
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* by 'barrier' and releases any resources used by the barrier. The effect
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* of subsequent use of the barrier is undefined until the barrier is
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* reinitialized by another call to pthread_barrier_init(). The result
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* are undefined if pthread_barrier_destroy() is called when any thread is
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* blocked on the barrier, or if this function is called with an
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* uninitialized barrier.
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*
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* Input Parameters:
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* barrier - barrier to be destroyed.
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*
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* Returned Value:
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* 0 (OK) on success or on of the following error numbers:
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*
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* EBUSY The implementation has detected an attempt to destroy a barrier
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* while it is in use.
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* EINVAL The value specified by barrier is invalid.
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*
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* Assumptions:
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*
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****************************************************************************/
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int pthread_barrier_destroy(FAR pthread_barrier_t *barrier)
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{
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int ret = OK;
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if (!barrier)
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{
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ret = EINVAL;
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}
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else
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{
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sem_destroy(&barrier->sem);
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barrier->count = 0;
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}
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return ret;
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}
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