1 // Copyright 2013 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.
5 // This file implements sysSocket and accept for platforms that do not
6 // provide a fast path for setting SetNonblock and CloseOnExec.
8 // +build darwin dragonfly nacl netbsd openbsd solaris
14 // Wrapper around the socket system call that marks the returned file
15 // descriptor as nonblocking and close-on-exec.
16 func sysSocket(family
, sotype
, proto
int) (int, error
) {
17 // See ../syscall/exec_unix.go for description of ForkLock.
18 syscall
.ForkLock
.RLock()
19 s
, err
:= syscall
.Socket(family
, sotype
, proto
)
21 syscall
.CloseOnExec(s
)
23 syscall
.ForkLock
.RUnlock()
27 if err
= syscall
.SetNonblock(s
, true); err
!= nil {
34 // Wrapper around the accept system call that marks the returned file
35 // descriptor as nonblocking and close-on-exec.
36 func accept(s
int) (int, syscall
.Sockaddr
, error
) {
37 // See ../syscall/exec_unix.go for description of ForkLock.
38 // It is probably okay to hold the lock across syscall.Accept
39 // because we have put fd.sysfd into non-blocking mode.
40 // However, a call to the File method will put it back into
41 // blocking mode. We can't take that risk, so no use of ForkLock here.
42 ns
, sa
, err
:= syscall
.Accept(s
)
44 syscall
.CloseOnExec(ns
)
49 if err
= syscall
.SetNonblock(ns
, true); err
!= nil {