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68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <sys/types.h>
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/* Nonzero if the system calls are not available. */
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extern int __no_posix_timers attribute_hidden;
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/* Callback to start helper thread. */
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extern void __start_helper_thread (void) attribute_hidden;
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/* Control variable for helper thread creation. */
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extern pthread_once_t __helper_once attribute_hidden;
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/* TID of the helper thread. */
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extern pid_t __helper_tid attribute_hidden;
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/* List of active SIGEV_THREAD timers. */
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extern struct timer *__active_timer_sigev_thread attribute_hidden;
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/* Lock for the __active_timer_sigev_thread. */
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extern pthread_mutex_t __active_timer_sigev_thread_lock attribute_hidden;
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/* Type of timers in the kernel. */
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typedef int kernel_timer_t;
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/* Internal representation of timer. */
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struct timer
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{
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/* Notification mechanism. */
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int sigev_notify;
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/* Timer ID returned by the kernel. */
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kernel_timer_t ktimerid;
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/* All new elements must be added after ktimerid. And if the thrfunc
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element is not the third element anymore the memory allocation in
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timer_create needs to be changed. */
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/* Parameters for the thread to be started for SIGEV_THREAD. */
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void (*thrfunc) (sigval_t);
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sigval_t sival;
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pthread_attr_t attr;
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/* Next element in list of active SIGEV_THREAD timers. */
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struct timer *next;
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};
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