nuttx/libs/libc/pthread/pthread_barrierdestroy.c
Alin Jerpelea b5d4a01821 libs: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-03 18:52:53 -08:00

78 lines
2.6 KiB
C

/****************************************************************************
* libs/libc/pthread/pthread_barriedestroy.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <pthread.h>
#include <semaphore.h>
#include <errno.h>
#include <debug.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pthread_barrier_destroy
*
* Description:
* The pthread_barrier_destroy() function destroys the barrier referenced
* by 'barrier' and releases any resources used by the barrier. The effect
* of subsequent use of the barrier is undefined until the barrier is
* reinitialized by another call to pthread_barrier_init(). The result
* are undefined if pthread_barrier_destroy() is called when any thread is
* blocked on the barrier, or if this function is called with an
* uninitialized barrier.
*
* Input Parameters:
* barrier - barrier to be destroyed.
*
* Returned Value:
* 0 (OK) on success or on of the following error numbers:
*
* EBUSY The implementation has detected an attempt to destroy a barrier
* while it is in use.
* EINVAL The value specified by barrier is invalid.
*
* Assumptions:
*
****************************************************************************/
int pthread_barrier_destroy(FAR pthread_barrier_t *barrier)
{
int ret = OK;
if (!barrier)
{
ret = EINVAL;
}
else
{
sem_destroy(&barrier->sem);
barrier->count = 0;
}
return ret;
}