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ac3223d801
Add Set, Clear, IsSet and Zero methods to manipulate an *FdSet. These implement the same functionality as the FD_SET, FD_CLR, FD_ISSET and FD_ZERO macros in <sys/select.h>. Change-Id: I6b7bccb98e58ee5e719096ed5743f6edcd232840 Reviewed-on: https://go-review.googlesource.com/c/sys/+/205397 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
54 lines
1.1 KiB
Go
54 lines
1.1 KiB
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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// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
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package unix_test
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import (
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"testing"
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"golang.org/x/sys/unix"
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)
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func TestFdSet(t *testing.T) {
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var fdSet unix.FdSet
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fdSet.Zero()
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for fd := 0; fd < unix.FD_SETSIZE; fd++ {
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if fdSet.IsSet(fd) {
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t.Fatalf("Zero did not clear fd %d", fd)
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}
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fdSet.Set(fd)
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}
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for fd := 0; fd < unix.FD_SETSIZE; fd++ {
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if !fdSet.IsSet(fd) {
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t.Fatalf("IsSet(%d): expected true, got false", fd)
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}
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}
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fdSet.Zero()
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for fd := 0; fd < unix.FD_SETSIZE; fd++ {
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if fdSet.IsSet(fd) {
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t.Fatalf("Zero did not clear fd %d", fd)
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}
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}
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for fd := 1; fd < unix.FD_SETSIZE; fd += 2 {
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fdSet.Set(fd)
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}
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for fd := 0; fd < unix.FD_SETSIZE; fd++ {
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if fd&0x1 == 0x1 {
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if !fdSet.IsSet(fd) {
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t.Fatalf("IsSet(%d): expected true, got false", fd)
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}
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} else {
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if fdSet.IsSet(fd) {
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t.Fatalf("IsSet(%d): expected false, got true", fd)
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}
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}
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}
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}
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