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/* __pthread_destory_specific. Hurd version.
Copyright (C) 2002-2023 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 <stdlib.h>
#include <pt-internal.h>
void
__pthread_destroy_specific (struct __pthread *thread)
{
int i;
int seen_one;
/* Check if there is any thread specific data. */
if (thread->thread_specifics == NULL)
{
for (i = 0; i < PTHREAD_STATIC_KEYS; i++)
{
if (thread->static_thread_specifics[i] != NULL)
break;
}
if (i == PTHREAD_STATIC_KEYS)
return;
}
__pthread_key_lock_ready ();
/* Iterate and call the destructors on any thread specific data. */
for (;;)
{
seen_one = 0;
__pthread_mutex_lock (&__pthread_key_lock);
for (i = 0; i < __pthread_key_count; i++)
{
void *value;
if (__pthread_key_destructors[i] == PTHREAD_KEY_INVALID)
continue;
if (thread->thread_specifics == NULL)
{
if (i >= PTHREAD_STATIC_KEYS)
break;
value = thread->static_thread_specifics[i];
}
else
{
if (i >= thread->thread_specifics_size)
break;
value = thread->thread_specifics[i];
}
if (value != NULL)
{
if (thread->thread_specifics == NULL)
thread->static_thread_specifics[i] = 0;
else
thread->thread_specifics[i] = 0;
if (__pthread_key_destructors[i])
{
seen_one = 1;
__pthread_key_destructors[i] (value);
}
}
}
__pthread_mutex_unlock (&__pthread_key_lock);
if (!seen_one)
break;
/* This may take a very long time. Let those blocking on
pthread_key_create or pthread_key_delete make progress. */
__sched_yield ();
}
free (thread->thread_specifics);
thread->thread_specifics = 0;
thread->thread_specifics_size = 0;
memset (&thread->static_thread_specifics, 0,
sizeof (thread->static_thread_specifics));
}
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