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32e203842b
Inspired by CL 698495. Change-Id: Ic6ff68a60d41b6ffb6a28f523597c5d36c1e4d2f Reviewed-on: https://go-review.googlesource.com/c/sys/+/704915 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Sean Liao <sean@liao.dev> Reviewed-by: Mark Freeman <markfreeman@google.com>
28 lines
753 B
Go
28 lines
753 B
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
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package unix
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// Set adds fd to the set fds.
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func (fds *FdSet) Set(fd int) {
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fds.Bits[fd/NFDBITS] |= (1 << (uintptr(fd) % NFDBITS))
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}
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// Clear removes fd from the set fds.
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func (fds *FdSet) Clear(fd int) {
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fds.Bits[fd/NFDBITS] &^= (1 << (uintptr(fd) % NFDBITS))
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}
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// IsSet returns whether fd is in the set fds.
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func (fds *FdSet) IsSet(fd int) bool {
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return fds.Bits[fd/NFDBITS]&(1<<(uintptr(fd)%NFDBITS)) != 0
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}
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// Zero clears the set fds.
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func (fds *FdSet) Zero() {
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clear(fds.Bits[:])
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}
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