mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-01-09 04:37:52 +03:00
4226b662cd
We only ever use private futexes, so it doesn't make sense to carry around all the complexity required for global (cross-process) futexes.
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <Kernel/API/POSIX/sys/types.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define _FUTEX_OP_SHIFT_OP 28
|
|
#define _FUTEX_OP_MASK_OP 0xf
|
|
#define _FUTEX_OP_SHIFT_CMP 24
|
|
#define _FUTEX_OP_MASK_CMP 0xf
|
|
#define _FUTEX_OP_SHIFT_OP_ARG 12
|
|
#define _FUTEX_OP_MASK_OP_ARG 0xfff
|
|
#define _FUTEX_OP_SHIFT_CMP_ARG 0
|
|
#define _FUTEX_OP_MASK_CMP_ARG 0xfff
|
|
|
|
#define FUTEX_OP(op, op_arg, cmp, cmp_arg) \
|
|
((((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))
|
|
|
|
#define _FUTEX_OP(val3) (((val3) >> _FUTEX_OP_SHIFT_OP) & _FUTEX_OP_MASK_OP)
|
|
#define _FUTEX_CMP(val3) (((val3) >> _FUTEX_OP_SHIFT_CMP) & _FUTEX_OP_MASK_CMP)
|
|
#define _FUTEX_OP_ARG(val3) (((val3) >> _FUTEX_OP_SHIFT_OP_ARG) & _FUTEX_OP_MASK_OP_ARG)
|
|
#define _FUTEX_CMP_ARG(val3) (((val3) >> _FUTEX_OP_SHIFT_CMP_ARG) & _FUTEX_OP_MASK_CMP_ARG)
|
|
|
|
#define FUTEX_OP_SET 0
|
|
#define FUTEX_OP_ADD 1
|
|
#define FUTEX_OP_OR 2
|
|
#define FUTEX_OP_ANDN 3
|
|
#define FUTEX_OP_XOR 4
|
|
#define FUTEX_OP_ARG_SHIFT 8
|
|
|
|
#define FUTEX_OP_CMP_EQ 0
|
|
#define FUTEX_OP_CMP_NE 1
|
|
#define FUTEX_OP_CMP_LT 2
|
|
#define FUTEX_OP_CMP_LE 3
|
|
#define FUTEX_OP_CMP_GT 4
|
|
#define FUTEX_OP_CMP_GE 5
|
|
|
|
#define FUTEX_WAIT 1
|
|
#define FUTEX_WAKE 2
|
|
|
|
#define FUTEX_REQUEUE 3
|
|
#define FUTEX_CMP_REQUEUE 4
|
|
#define FUTEX_WAKE_OP 5
|
|
#define FUTEX_WAIT_BITSET 9
|
|
#define FUTEX_WAKE_BITSET 10
|
|
|
|
#define FUTEX_CLOCK_REALTIME (1 << 8)
|
|
#define FUTEX_CMD_MASK ~(FUTEX_CLOCK_REALTIME)
|
|
|
|
#define FUTEX_BITSET_MATCH_ANY 0xffffffff
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|