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/* pthread_key_delete. Hurd version.
Copyright (C) 2002-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <pt-internal.h>
int
pthread_key_delete (pthread_key_t key)
{
error_t err = 0;
__pthread_key_lock_ready ();
__pthread_mutex_lock (&__pthread_key_lock);
if (key < 0 || key >= __pthread_key_count
|| __pthread_key_destructors[key] == PTHREAD_KEY_INVALID)
err = EINVAL;
else
{
int i;
__pthread_key_destructors[key] = PTHREAD_KEY_INVALID;
__pthread_key_invalid_count++;
__pthread_rwlock_rdlock (&__pthread_threads_lock);
for (i = 0; i < __pthread_num_threads; ++i)
{
struct __pthread *t;
t = __pthread_threads[i];
if (t == NULL)
continue;
/* Just remove the key, no need to care whether it was
already there. */
if (key < t->thread_specifics_size)
t->thread_specifics[key] = 0;
}
__pthread_rwlock_unlock (&__pthread_threads_lock);
}
__pthread_mutex_unlock (&__pthread_key_lock);
return err;
}
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