forked from syncthing/syncthing
/
counting.go
51 lines (41 loc) · 1.02 KB
/
counting.go
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// Copyright (C) 2014 Jakob Borg and other contributors. 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"
)
type countingReader struct {
io.Reader
tot uint64
}
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))
return n, err
}
func (c *countingReader) Tot() uint64 {
return atomic.LoadUint64(&c.tot)
}
type countingWriter struct {
io.Writer
tot uint64
}
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))
return n, err
}
func (c *countingWriter) Tot() uint64 {
return atomic.LoadUint64(&c.tot)
}
func TotalInOut() (uint64, uint64) {
return atomic.LoadUint64(&totalIncoming), atomic.LoadUint64(&totalOutgoing)
}