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https://github.com/KusakabeShi/EtherGuard-VPN.git
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23 lines
486 B
Go
23 lines
486 B
Go
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. 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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fdset 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.fdset.X__fds_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.fdset.X__fds_bits[i/bits] & (1 << uint(i%bits))) != 0
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}
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