gcc/libgo/go/net/sys_cloexec.go
Ian Lance Taylor bc998d034f libgo: update to go1.9
Reviewed-on: https://go-review.googlesource.com/63753

From-SVN: r252767
2017-09-14 17:11:35 +00:00

37 lines
997 B
Go

// Copyright 2013 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.
// This file implements sysSocket and accept for platforms that do not
// provide a fast path for setting SetNonblock and CloseOnExec.
// +build aix darwin nacl netbsd openbsd solaris
package net
import (
"internal/poll"
"os"
"syscall"
)
// Wrapper around the socket system call that marks the returned file
// descriptor as nonblocking and close-on-exec.
func sysSocket(family, sotype, proto int) (int, error) {
// See ../syscall/exec_unix.go for description of ForkLock.
syscall.ForkLock.RLock()
s, err := socketFunc(family, sotype, proto)
if err == nil {
syscall.CloseOnExec(s)
}
syscall.ForkLock.RUnlock()
if err != nil {
return -1, os.NewSyscallError("socket", err)
}
if err = syscall.SetNonblock(s, true); err != nil {
poll.CloseFunc(s)
return -1, os.NewSyscallError("setnonblock", err)
}
return s, nil
}