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/**
* @file
*
* @brief Deletes Thread-specific Data Key Previously Returned by keycreate.c
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
* Copyright (c) 2016 embedded brains GmbH.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if 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;
}
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