Struct proxy_envOnce

x_net_proxy.go:253–257

envOnce looks up an environment variable (optionally by multiple names) once. It mitigates expensive lookups on some platforms (e.g. Windows). (Borrowed from net/http/transport.go)

// (e.g. Windows).
// (Borrowed from net/http/transport.go)
type proxy_envOnce struct {
	names []string
	once  sync.Once
	val   string
}

func (e *proxy_envOnce) Get() string {
	e.once.Do(e.init)