mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 13:31:13 +00:00
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/* Copyright (C) 2006-2024 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 <assert.h>
|
|
#include <signal.h>
|
|
#include <pthread.h>
|
|
|
|
#define gai_start_notify_thread __gai_start_notify_thread
|
|
#define gai_create_helper_thread __gai_create_helper_thread
|
|
|
|
extern inline void
|
|
__gai_start_notify_thread (void)
|
|
{
|
|
sigset_t ss;
|
|
sigemptyset (&ss);
|
|
int sigerr __attribute__ ((unused));
|
|
sigerr = pthread_sigmask (SIG_SETMASK, &ss, NULL);
|
|
assert_perror (sigerr);
|
|
}
|
|
|
|
extern inline int
|
|
__gai_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),
|
|
void *arg)
|
|
{
|
|
pthread_attr_t attr;
|
|
|
|
/* Make sure the thread is created detached. */
|
|
pthread_attr_init (&attr);
|
|
pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
|
|
|
|
/* The helper thread needs only very little resources. */
|
|
(void) pthread_attr_setstacksize (&attr, 0x10000);
|
|
|
|
/* Block all signals in the helper thread. To do this thoroughly we
|
|
temporarily have to block all signals here. */
|
|
sigset_t ss;
|
|
sigset_t oss;
|
|
sigfillset (&ss);
|
|
int sigerr __attribute__ ((unused));
|
|
sigerr = pthread_sigmask (SIG_SETMASK, &ss, &oss);
|
|
assert_perror (sigerr);
|
|
|
|
int ret = pthread_create (threadp, &attr, tf, arg);
|
|
|
|
/* Restore the signal mask. */
|
|
sigerr = pthread_sigmask (SIG_SETMASK, &oss, NULL);
|
|
assert_perror (sigerr);
|
|
|
|
(void) pthread_attr_destroy (&attr);
|
|
return ret;
|
|
}
|
|
|
|
#include_next <gai_misc.h>
|