mirror of
https://github.com/RGBCube/serenity
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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.
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <Kernel/API/POSIX/sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _FUTEX_OP_SHIFT_OP 28
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#define _FUTEX_OP_MASK_OP 0xf
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#define _FUTEX_OP_SHIFT_CMP 24
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#define _FUTEX_OP_MASK_CMP 0xf
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#define _FUTEX_OP_SHIFT_OP_ARG 12
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#define _FUTEX_OP_MASK_OP_ARG 0xfff
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#define _FUTEX_OP_SHIFT_CMP_ARG 0
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#define _FUTEX_OP_MASK_CMP_ARG 0xfff
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#define FUTEX_OP(op, op_arg, cmp, cmp_arg) \
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((((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))
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#define _FUTEX_OP(val3) (((val3) >> _FUTEX_OP_SHIFT_OP) & _FUTEX_OP_MASK_OP)
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#define _FUTEX_CMP(val3) (((val3) >> _FUTEX_OP_SHIFT_CMP) & _FUTEX_OP_MASK_CMP)
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#define _FUTEX_OP_ARG(val3) (((val3) >> _FUTEX_OP_SHIFT_OP_ARG) & _FUTEX_OP_MASK_OP_ARG)
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#define _FUTEX_CMP_ARG(val3) (((val3) >> _FUTEX_OP_SHIFT_CMP_ARG) & _FUTEX_OP_MASK_CMP_ARG)
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#define FUTEX_OP_SET 0
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#define FUTEX_OP_ADD 1
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#define FUTEX_OP_OR 2
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#define FUTEX_OP_ANDN 3
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#define FUTEX_OP_XOR 4
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#define FUTEX_OP_ARG_SHIFT 8
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#define FUTEX_OP_CMP_EQ 0
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#define FUTEX_OP_CMP_NE 1
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#define FUTEX_OP_CMP_LT 2
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#define FUTEX_OP_CMP_LE 3
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#define FUTEX_OP_CMP_GT 4
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#define FUTEX_OP_CMP_GE 5
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#define FUTEX_WAIT 1
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#define FUTEX_WAKE 2
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#define FUTEX_REQUEUE 3
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#define FUTEX_CMP_REQUEUE 4
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#define FUTEX_WAKE_OP 5
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#define FUTEX_WAIT_BITSET 9
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#define FUTEX_WAKE_BITSET 10
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#define FUTEX_CLOCK_REALTIME (1 << 8)
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#define FUTEX_CMD_MASK ~(FUTEX_CLOCK_REALTIME)
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#define FUTEX_BITSET_MATCH_ANY 0xffffffff
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#ifdef __cplusplus
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}
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#endif
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