Move top level packages to internal.

counting.go

@@ -0,0 +1,64 @@
+// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
+// All rights reserved. Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+package protocol
+
+import (
+	"io"
+	"sync/atomic"
+	"time"
+)
+
+type countingReader struct {
+	io.Reader
+	tot  uint64 // bytes
+	last int64  // unix nanos
+}
+
+var (
+	totalIncoming uint64
+	totalOutgoing uint64
+)
+
+func (c *countingReader) Read(bs []byte) (int, error) {
+	n, err := c.Reader.Read(bs)
+	atomic.AddUint64(&c.tot, uint64(n))
+	atomic.AddUint64(&totalIncoming, uint64(n))
+	atomic.StoreInt64(&c.last, time.Now().UnixNano())
+	return n, err
+}
+
+func (c *countingReader) Tot() uint64 {
+	return atomic.LoadUint64(&c.tot)
+}
+
+func (c *countingReader) Last() time.Time {
+	return time.Unix(0, atomic.LoadInt64(&c.last))
+}
+
+type countingWriter struct {
+	io.Writer
+	tot  uint64 // bytes
+	last int64  // unix nanos
+}
+
+func (c *countingWriter) Write(bs []byte) (int, error) {
+	n, err := c.Writer.Write(bs)
+	atomic.AddUint64(&c.tot, uint64(n))
+	atomic.AddUint64(&totalOutgoing, uint64(n))
+	atomic.StoreInt64(&c.last, time.Now().UnixNano())
+	return n, err
+}
+
+func (c *countingWriter) Tot() uint64 {
+	return atomic.LoadUint64(&c.tot)
+}
+
+func (c *countingWriter) Last() time.Time {
+	return time.Unix(0, atomic.LoadInt64(&c.last))
+}
+
+func TotalInOut() (uint64, uint64) {
+	return atomic.LoadUint64(&totalIncoming), atomic.LoadUint64(&totalOutgoing)
+}