k3s/vendor/github.com/cilium/ebpf/feature.go

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package ebpf
import (
"sync"
)
type featureTest struct {
Fn func() bool
once sync.Once
result bool
}
func (ft *featureTest) Result() bool {
ft.once.Do(func() {
ft.result = ft.Fn()
})
return ft.result
}