github.com/bir3/gocompiler@v0.9.2202/src/internal/syscall/unix/nonblocking_unix.go (about) 1 // Copyright 2018 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 //go:build unix 6 7 package unix 8 9 import "syscall" 10 11 func IsNonblock(fd int) (nonblocking bool, err error) { 12 flag, e1 := Fcntl(fd, syscall.F_GETFL, 0) 13 if e1 != nil { 14 return false, e1 15 } 16 return flag&syscall.O_NONBLOCK != 0, nil 17 } 18 19 func HasNonblockFlag(flag int) bool { 20 return flag&syscall.O_NONBLOCK != 0 21 }