init: 1.0.0

pkg/syncx/barrier.go

@@ -0,0 +1,20 @@
+package syncx
+
+import "sync"
+
+// A Barrier is used to facility the barrier on a resource.
+type Barrier struct {
+	lock sync.Mutex
+}
+
+// Guard guards the given fn on the resource.
+func (b *Barrier) Guard(fn func()) {
+	Guard(&b.lock, fn)
+}
+
+// Guard guards the given fn with lock.
+func Guard(lock sync.Locker, fn func()) {
+	lock.Lock()
+	defer lock.Unlock()
+	fn()
+}