incubator-nuttx/libs/libc/tls/tls_destruct.c

77 lines
2.4 KiB
C

/****************************************************************************
* libs/libc/tls/tls_destruct.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 <assert.h>
#include <nuttx/tls.h>
#if defined(CONFIG_TLS_NELEM) && CONFIG_TLS_NELEM > 0
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: tls_destruct
*
* Description:
* Destruct all TLS data element associated with allocated key
*
* Input Parameters:
* None
*
* Returned Value:
* A set of allocated TLS index
*
****************************************************************************/
void tls_destruct(void)
{
FAR struct task_info_s *info = task_get_info();
FAR struct tls_info_s *tls = tls_get_info();
FAR void *tls_elem_ptr = NULL;
tls_dtor_t destructor;
int candidate;
DEBUGASSERT(info != NULL);
for (candidate = CONFIG_TLS_NELEM - 1; candidate >= 0; candidate--)
{
/* Is this candidate index available? */
tls_elem_ptr = (FAR void *)tls->tl_elem[candidate];
destructor = info->ta_tlsdtor[candidate];
if (tls_elem_ptr && destructor)
{
destructor(tls_elem_ptr);
}
tls->tl_elem[candidate] = 0;
}
}
#endif /* CONFIG_TLS_NELEM > 0 */