Editando: sys_cloexec.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 for platforms that do not provide a fast path // for setting SetNonblock and CloseOnExec. //go:build aix || darwin 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 }
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