nuttx/sched/group/group_tlsgetdtor.c
YAMAMOTO Takashi b3e8535ad6 Revert "tls: Move pthread key destructor to libc"
This reverts commit cc514d7791.

* It introduced a regression.
  https://github.com/apache/incubator-nuttx/issues/3868

* It seems conceptually wrong to have per-process data in
  the main thread's stack.
2021-06-09 07:59:44 -05:00

76 lines
2.4 KiB
C

/****************************************************************************
* sched/group/group_tlsgetdtor.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 <stdint.h>
#include <assert.h>
#include <nuttx/arch.h>
#include <nuttx/spinlock.h>
#include <nuttx/tls.h>
#include <arch/tls.h>
#include "sched/sched.h"
#include "group/group.h"
#if CONFIG_TLS_NELEM > 0
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: tls_get_dtor
*
* Description:
* Get the TLS element destructor associated with the 'tlsindex' to 'destr'
*
* Input Parameters:
* tlsindex - Index of TLS data destructor to get
*
* Returned Value:
* A non-null destruct function pointer.
*
****************************************************************************/
tls_dtor_t tls_get_dtor(int tlsindex)
{
FAR struct tcb_s *rtcb = this_task();
FAR struct task_group_s *group = rtcb->group;
irqstate_t flags;
tls_dtor_t destr;
DEBUGASSERT(group != NULL);
DEBUGASSERT(tlsindex >= 0 && tlsindex < CONFIG_TLS_NELEM);
flags = spin_lock_irqsave(NULL);
destr = group->tg_tlsdestr[tlsindex];
spin_unlock_irqrestore(NULL, flags);
return destr;
}
#endif /* CONFIG_TLS_NELEM > 0 */