Mercurial > hg > CbC > CbC_gcc
view libgo/go/internal/poll/fcntl_syscall.go @ 152:2b5abeee2509
update gcc11
author | anatofuz |
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date | Mon, 25 May 2020 07:50:57 +0900 |
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// Copyright 2019 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. // +build dragonfly freebsd hurd linux netbsd openbsd package poll import ( "syscall" ) // Use a helper function to call fcntl. This is defined in C in // libgo/runtime. //extern __go_fcntl_uintptr func libc_fcntl(uintptr, uintptr, uintptr) (uintptr, uintptr) func fcntl(fd int, cmd int, arg int) (int, error) { syscall.Entersyscall() r, e := libc_fcntl(uintptr(fd), uintptr(cmd), uintptr(arg)) syscall.Exitsyscall() if e != 0 { return int(r), syscall.Errno(e) } return int(r), nil }