mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
09402f5bc1
2003-03-25 Ulrich Drepper <drepper@redhat.com> * csu/tst-atomic.c: Adjust tests to what atomic_add_negative and atomic_add_zero were supposed to do. * include/atomic.h: Adjust atomic_add_negative and atomic_add_zero to x86 behavior. * sysdeps/generic/bits/typesizes.h (__TIMER_T_TYPE): Define as void*. This matches the new timer implementation. * sysdeps/unix/sysv/linux/bits/siginfo.h (struct siginfo): Adjust timer info for what the kernel provides these days. (struct sigevent): Add _tid field. Define SIGEV_THREAD_ID. * Versions.def (librt): Add GLIBC_2.3.3. * abilist/libpthread.abilist: Update for nptl.
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
|
|
|
|
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; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <setjmp.h>
|
|
#include <signal.h>
|
|
#include <stdbool.h>
|
|
#include <sysdep.h>
|
|
#include <kernel-features.h>
|
|
#include "kernel-posix-timers.h"
|
|
|
|
|
|
#ifdef __NR_timer_create
|
|
/* Helper thread to call the user-provided function. */
|
|
static void *
|
|
timer_sigev_thread (void *arg)
|
|
{
|
|
struct timer *tk = (struct timer *) arg;
|
|
|
|
/* Call the user-provided function. */
|
|
tk->thrfunc (tk->sival);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Helper function to support starting threads for SIGEV_THREAD. */
|
|
void *
|
|
attribute_hidden
|
|
__timer_helper_thread (void *arg)
|
|
{
|
|
/* Block all signals. */
|
|
sigset_t ss;
|
|
|
|
sigfillset (&ss);
|
|
(void) pthread_sigmask (SIG_BLOCK, &ss, NULL);
|
|
|
|
struct timer *tk = (struct timer *) arg;
|
|
|
|
/* Synchronize with the parent. */
|
|
(void) pthread_barrier_wait (&tk->bar);
|
|
|
|
/* We will only wait for the signal the kernel will send. */
|
|
sigemptyset (&ss);
|
|
sigaddset (&ss, TIMER_SIG);
|
|
|
|
/* Endless loop of waiting for signals. The loop is only ended when
|
|
the thread is canceled. */
|
|
while (1)
|
|
{
|
|
siginfo_t si;
|
|
|
|
if (sigwaitinfo (&ss, &si) > 0 && si.si_timerid == tk->ktimerid)
|
|
{
|
|
/* That the signal we are waiting for. */
|
|
pthread_t th;
|
|
(void) pthread_create (&th, &tk->attr, timer_sigev_thread, arg);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifndef __ASSUME_POSIX_TIMERS
|
|
# include <nptl/sysdeps/pthread/timer_routines.c>
|
|
#endif
|