1 files changed, 46 insertions, 0 deletions
diff --git a/internal/state/enablement.go b/internal/state/enablement.go
new file mode 100644
index 00000000..9cc8f60d
--- /dev/null
+++ b/internal/state/enablement.go
@@ -0,0 +1,46 @@
+package state
+
+type (
+	// Enablement represents an optional system resource
+	Enablement uint8
+	// Enablements represents optional system resources to share
+	Enablements uint64
+)
+
+const (
+	EnableWayland Enablement = iota
+	EnableX
+	EnableDBus
+	EnablePulse
+
+	EnableLength
+)
+
+var enablementString = [EnableLength]string{
+	"Wayland",
+	"X11",
+	"D-Bus",
+	"PulseAudio",
+}
+
+func (e Enablement) String() string {
+	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()
+}