1/* $OpenBSD: futex.h,v 1.2 2018/06/03 15:09:26 kettenis Exp $ */ 2 3/* 4 * Copyright (c) 2016 Martin Pieuchot 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#ifndef _SYS_FUTEX_H_ 20#define _SYS_FUTEX_H_ 21 22#ifndef _KERNEL 23#include <sys/cdefs.h> 24 25__BEGIN_DECLS 26int futex(volatile uint32_t *, int, int, const struct timespec *, 27 volatile uint32_t *); 28__END_DECLS 29#endif /* ! _KERNEL */ 30 31#define FUTEX_WAIT 1 32#define FUTEX_WAKE 2 33#define FUTEX_REQUEUE 3 34 35#define FUTEX_PRIVATE_FLAG 128 36 37#define FUTEX_WAIT_PRIVATE (FUTEX_WAIT | FUTEX_PRIVATE_FLAG) 38#define FUTEX_WAKE_PRIVATE (FUTEX_WAKE | FUTEX_PRIVATE_FLAG) 39#define FUTEX_REQUEUE_PRIVATE (FUTEX_REQUEUE | FUTEX_PRIVATE_FLAG) 40 41#endif /* _SYS_FUTEX_H_ */ 42