1 /* $NetBSD: linux_futex.h,v 1.2 2005/12/11 12:20:19 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Emmanuel Dreyfus
17 * 4. The name of the author may not be used to endorse or promote
18 * products derived from this software without specific prior written
19 * permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD: src/sys/compat/linux/linux_futex.h,v 1.5 2008/10/14 07:59:23 kib Exp $
34 */
35
36 #ifndef _LINUX_FUTEX_H
37 #define _LINUX_FUTEX_H
38
39 #define LINUX_FUTEX_WAIT 0
40 #define LINUX_FUTEX_WAKE 1
41 #define LINUX_FUTEX_FD 2
42 #define LINUX_FUTEX_REQUEUE 3
43 #define LINUX_FUTEX_CMP_REQUEUE 4
44 #define LINUX_FUTEX_WAKE_OP 5
45 #define LINUX_FUTEX_LOCK_PI 6
46 #define LINUX_FUTEX_UNLOCK_PI 7
47 #define LINUX_FUTEX_TRYLOCK_PI 8
48
49 #define LINUX_FUTEX_PRIVATE_FLAG 128
50
51 #define FUTEX_OP_SET 0 /* *(int *)UADDR2 = OPARG; */
52 #define FUTEX_OP_ADD 1 /* *(int *)UADDR2 += OPARG; */
53 #define FUTEX_OP_OR 2 /* *(int *)UADDR2 |= OPARG; */
54 #define FUTEX_OP_ANDN 3 /* *(int *)UADDR2 &= ~OPARG; */
55 #define FUTEX_OP_XOR 4 /* *(int *)UADDR2 ^= OPARG; */
56
57 #define FUTEX_OP_OPARG_SHIFT 8 /* Use (1 << OPARG) instead of OPARG. */
58
59 #define FUTEX_OP_CMP_EQ 0 /* if (oldval == CMPARG) wake */
60 #define FUTEX_OP_CMP_NE 1 /* if (oldval != CMPARG) wake */
61 #define FUTEX_OP_CMP_LT 2 /* if (oldval < CMPARG) wake */
62 #define FUTEX_OP_CMP_LE 3 /* if (oldval <= CMPARG) wake */
63 #define FUTEX_OP_CMP_GT 4 /* if (oldval > CMPARG) wake */
64 #define FUTEX_OP_CMP_GE 5 /* if (oldval >= CMPARG) wake */
65
66 #define FUTEX_WAITERS 0x80000000
67 #define FUTEX_OWNER_DIED 0x40000000
68 #define FUTEX_TID_MASK 0x3fffffff
69
70 void release_futexes(struct proc *);
71
72 #endif /* !_LINUX_FUTEX_H */
73 Cache object: c6de9ea4c8bed8fdec19ee29b1b42c93
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