25 lines
447 B
Go
25 lines
447 B
Go
// +build !windows
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/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
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*/
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package rwcancel
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import "golang.org/x/sys/unix"
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type fdSet struct {
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unix.FdSet
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}
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func (fdset *fdSet) set(i int) {
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bits := 32 << (^uint(0) >> 63)
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fdset.Bits[i/bits] |= 1 << uint(i%bits)
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}
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func (fdset *fdSet) check(i int) bool {
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bits := 32 << (^uint(0) >> 63)
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return (fdset.Bits[i/bits] & (1 << uint(i%bits))) != 0
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}
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