mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 21:10:07 +00:00
644aa127b9
When using jemalloc, malloc() needs to use TSD, while libpthread initialization needs malloc(). Supporting a static TSD area allows jemalloc and libpthread to initialize together.
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/* __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));
|
|
}
|