TUN-528: Move cloudflared into a separate repo

h2mux/bytes_counter.go

@@ -0,0 +1,27 @@
+package h2mux
+
+import (
+	"sync/atomic"
+)
+
+type AtomicCounter struct {
+	count uint64
+}
+
+func NewAtomicCounter(initCount uint64) *AtomicCounter {
+	return &AtomicCounter{count: initCount}
+}
+
+func (c *AtomicCounter) IncrementBy(number uint64) {
+	atomic.AddUint64(&c.count, number)
+}
+
+// Count returns the current value of counter and reset it to 0
+func (c *AtomicCounter) Count() uint64 {
+	return atomic.SwapUint64(&c.count, 0)
+}
+
+// Value returns the current value of counter
+func (c *AtomicCounter) Value() uint64 {
+	return atomic.LoadUint64(&c.count)
+}