privacy selector

Overlord-Client/cmd/agent/privacy/privacy.go

@@ -0,0 +1,54 @@
+package privacy
+
+import (
+	"sync"
+	"sync/atomic"
+)
+
+const inputMarker uintptr = 0x00D5E7B00B5
+
+type Manager struct {
+	mu      sync.Mutex
+	enabled int32
+}
+
+var global = &Manager{}
+
+func Get() *Manager { return global }
+
+func (m *Manager) IsEnabled() bool {
+	return atomic.LoadInt32(&m.enabled) != 0
+}
+
+func (m *Manager) Enable() error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if atomic.LoadInt32(&m.enabled) != 0 {
+		return nil
+	}
+
+	if err := enablePlatform(); err != nil {
+		atomic.StoreInt32(&m.enabled, 0)
+		return err
+	}
+
+	atomic.StoreInt32(&m.enabled, 1)
+	return nil
+}
+
+func (m *Manager) Disable() {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if atomic.SwapInt32(&m.enabled, 0) == 0 {
+		return
+	}
+
+	disablePlatform()
+}
+
+func Start() error         { return Get().Enable() }
+func Stop()                { Get().Disable() }
+func IsEnabled() bool      { return Get().IsEnabled() }
+func InputMarker() uintptr { return inputMarker }