jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <Kernel/API/POSIX/sys/types.h>
10
11#ifdef __cplusplus
12extern "C" {
13#endif
14
15#define _FUTEX_OP_SHIFT_OP 28
16#define _FUTEX_OP_MASK_OP 0xf
17#define _FUTEX_OP_SHIFT_CMP 24
18#define _FUTEX_OP_MASK_CMP 0xf
19#define _FUTEX_OP_SHIFT_OP_ARG 12
20#define _FUTEX_OP_MASK_OP_ARG 0xfff
21#define _FUTEX_OP_SHIFT_CMP_ARG 0
22#define _FUTEX_OP_MASK_CMP_ARG 0xfff
23
24#define FUTEX_OP(op, op_arg, cmp, cmp_arg) \
25 ((((op)&_FUTEX_OP_MASK_OP) << _FUTEX_OP_SHIFT_OP) | (((cmp)&_FUTEX_OP_MASK_CMP) << _FUTEX_OP_SHIFT_CMP) | (((op_arg)&_FUTEX_OP_MASK_OP_ARG) << _FUTEX_OP_SHIFT_OP_ARG) | (((cmp_arg)&_FUTEX_OP_MASK_CMP_ARG) << _FUTEX_OP_SHIFT_CMP_ARG))
26
27#define _FUTEX_OP(val3) (((val3) >> _FUTEX_OP_SHIFT_OP) & _FUTEX_OP_MASK_OP)
28#define _FUTEX_CMP(val3) (((val3) >> _FUTEX_OP_SHIFT_CMP) & _FUTEX_OP_MASK_CMP)
29#define _FUTEX_OP_ARG(val3) (((val3) >> _FUTEX_OP_SHIFT_OP_ARG) & _FUTEX_OP_MASK_OP_ARG)
30#define _FUTEX_CMP_ARG(val3) (((val3) >> _FUTEX_OP_SHIFT_CMP_ARG) & _FUTEX_OP_MASK_CMP_ARG)
31
32#define FUTEX_OP_SET 0
33#define FUTEX_OP_ADD 1
34#define FUTEX_OP_OR 2
35#define FUTEX_OP_ANDN 3
36#define FUTEX_OP_XOR 4
37#define FUTEX_OP_ARG_SHIFT 8
38
39#define FUTEX_OP_CMP_EQ 0
40#define FUTEX_OP_CMP_NE 1
41#define FUTEX_OP_CMP_LT 2
42#define FUTEX_OP_CMP_LE 3
43#define FUTEX_OP_CMP_GT 4
44#define FUTEX_OP_CMP_GE 5
45
46#define FUTEX_WAIT 1
47#define FUTEX_WAKE 2
48
49#define FUTEX_REQUEUE 3
50#define FUTEX_CMP_REQUEUE 4
51#define FUTEX_WAKE_OP 5
52#define FUTEX_WAIT_BITSET 9
53#define FUTEX_WAKE_BITSET 10
54
55#define FUTEX_CLOCK_REALTIME (1 << 8)
56#define FUTEX_PRIVATE_FLAG (1 << 9)
57#define FUTEX_CMD_MASK ~(FUTEX_CLOCK_REALTIME | FUTEX_PRIVATE_FLAG)
58
59#define FUTEX_BITSET_MATCH_ANY 0xffffffff
60
61#ifdef __cplusplus
62}
63#endif