ooni-probe-cli/internal/bytecounter/conn.go
Simone Basso 760ac905d6
refactor: move bytecounting conn in bytecounter pkg (#392)
* refactor: move bytecounting conn in bytecounter pkg

This enables other pieces of code to request bytecounting without
depending on netx or on the perverse using-the-context-to-configure-
byte-counting mechanism.

Also occurred when working on https://github.com/ooni/probe/issues/1687

* fix: add missing docs
2021-06-22 13:44:36 +02:00

27 lines
548 B
Go

package bytecounter
import "net"
// Conn wraps a network connection and counts bytes.
type Conn struct {
// net.Conn is the underlying net.Conn.
net.Conn
// Counter is the byte counter.
Counter *Counter
}
// Read implements net.Conn.Read.
func (c *Conn) Read(p []byte) (int, error) {
count, err := c.Conn.Read(p)
c.Counter.CountBytesReceived(count)
return count, err
}
// Write implements net.Conn.Write.
func (c *Conn) Write(p []byte) (int, error) {
count, err := c.Conn.Write(p)
c.Counter.CountBytesSent(count)
return count, err
}