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 26 int 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