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package system
type (
// Enablement represents an optional system resource
Enablement uint8
// Enablements represents optional system resources to share
Enablements uint64
)
const (
EWayland Enablement = iota
EX11
EDBus
EPulse
)
var enablementString = [...]string{
EWayland: "Wayland",
EX11: "X11",
EDBus: "D-Bus",
EPulse: "PulseAudio",
}
const ELen = len(enablementString)
func (e Enablement) String() string {
if int(e) >= ELen {
return "<invalid enablement>"
}
return enablementString[e]
}
func (e Enablement) Mask() Enablements {
return 1 << e
}
// Has returns whether a feature is enabled
func (es *Enablements) Has(e Enablement) bool {
return *es&e.Mask() != 0
}
// Set enables a feature
func (es *Enablements) Set(e Enablement) {
if es.Has(e) {
panic("enablement " + e.String() + " set twice")
}
*es |= e.Mask()
}
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