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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build unix
package unix
import "syscall"
func IsNonblock(fd int) (nonblocking bool, err error) {
flag, e1 := Fcntl(fd, syscall.F_GETFL, 0)
if e1 != nil {
return false, e1
}
return flag&syscall.O_NONBLOCK != 0, nil
}
func HasNonblockFlag(flag int) bool {
return flag&syscall.O_NONBLOCK != 0
}