github.com/sandwichdev/go-internals@v0.0.0-20210605002614-12311ac6b2c5/poll/fcntl_syscall.go (about) 1 // Copyright 2019 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 // +build dragonfly freebsd linux netbsd openbsd 6 7 package poll 8 9 import ( 10 "syscall" 11 12 "github.com/SandwichDev/go-internals/syscall/unix" 13 ) 14 15 func fcntl(fd int, cmd int, arg int) (int, error) { 16 r, _, e := syscall.Syscall(unix.FcntlSyscall, uintptr(fd), uintptr(cmd), uintptr(arg)) 17 if e != 0 { 18 return int(r), syscall.Errno(e) 19 } 20 return int(r), nil 21 }