go sock_cloexec_linux 源码
golang sock_cloexec_linux 代码
文件路径：/src/syscall/sock_cloexec_linux.go
// 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.
package syscall
// This is a stripped down version of sysSocket from net/sock_cloexec.go.
func cloexecSocket(family, sotype, proto int) (int, error) {
s, err := Socket(family, sotype|SOCK_CLOEXEC, proto)
switch err {
case nil:
return s, nil
default:
return -1, err
case EINVAL:
}
ForkLock.RLock()
s, err = Socket(family, sotype, proto)
if err == nil {
CloseOnExec(s)
}
ForkLock.RUnlock()
if err != nil {
Close(s)
return -1, err
}
return s, nil
}
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