// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// This file implements sysSocket and accept for platforms that do not
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// provide a fast path for setting SetNonblock and CloseOnExec.
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// +build aix darwin js,wasm nacl solaris
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package poll
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import (
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"syscall"
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)
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// Wrapper around the accept system call that marks the returned file
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// descriptor as nonblocking and close-on-exec.
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func accept(s int) (int, syscall.Sockaddr, string, error) {
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// See ../syscall/exec_unix.go for description of ForkLock.
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// It is probably okay to hold the lock across syscall.Accept
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// because we have put fd.sysfd into non-blocking mode.
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// However, a call to the File method will put it back into
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// blocking mode. We can't take that risk, so no use of ForkLock here.
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ns, sa, err := AcceptFunc(s)
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if err == nil {
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syscall.CloseOnExec(ns)
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}
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if err != nil {
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return -1, nil, "accept", err
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}
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if err = syscall.SetNonblock(ns, true); err != nil {
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CloseFunc(ns)
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return -1, nil, "setnonblock", err
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}
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return ns, sa, "", nil
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}
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