Rewrite fzf in Go

src/atomicbool.go

@@ -0,0 +1,27 @@
+package fzf
+
+import "sync"
+
+type AtomicBool struct {
+	mutex sync.Mutex
+	state bool
+}
+
+func NewAtomicBool(initialState bool) *AtomicBool {
+	return &AtomicBool{
+		mutex: sync.Mutex{},
+		state: initialState}
+}
+
+func (a *AtomicBool) Get() bool {
+	a.mutex.Lock()
+	defer a.mutex.Unlock()
+	return a.state
+}
+
+func (a *AtomicBool) Set(newState bool) bool {
+	a.mutex.Lock()
+	defer a.mutex.Unlock()
+	a.state = newState
+	return a.state
+}