/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup POSIXAPI
*
* @brief Deletes Thread-specific Data Key Previously Returned by keycreate.c
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
* Copyright (c) 2016 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/posix/keyimpl.h>
#include <errno.h>
static void _POSIX_Keys_Destroy( POSIX_Keys_Control *the_key )
{
_Objects_Close( &_POSIX_Keys_Information, &the_key->Object );
while ( !_Chain_Is_empty( &the_key->Key_value_pairs ) ) {
POSIX_Keys_Key_value_pair *key_value_pair;
ISR_lock_Context lock_context;
Thread_Control *the_thread;
key_value_pair = (POSIX_Keys_Key_value_pair *)
_Chain_First( &the_key->Key_value_pairs );
the_thread = key_value_pair->thread;
_POSIX_Keys_Key_value_acquire( the_thread, &lock_context );
_RBTree_Extract(
&the_thread->Keys.Key_value_pairs,
&key_value_pair->Lookup_node
);
_POSIX_Keys_Key_value_release( the_thread, &lock_context );
_POSIX_Keys_Key_value_free( key_value_pair );
}
_Objects_Free( &_POSIX_Keys_Information, &the_key->Object );
}
/*
* 17.1.3 Thread-Specific Data Key Deletion, P1003.1c/Draft 10, p. 167
*/
int pthread_key_delete(
pthread_key_t key
)
{
POSIX_Keys_Control *the_key;
int eno;
_Objects_Allocator_lock();
the_key = _POSIX_Keys_Get( key );
if ( the_key != NULL ) {
_POSIX_Keys_Destroy( the_key );
eno = 0;
} else {
eno = EINVAL;
}
_Objects_Allocator_unlock();
return eno;
}
