minio/cmd/http/stats/http-traffic-recorder.go

66 lines
1.9 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package stats
import (
"io"
"net/http"
)
// IncomingTrafficMeter counts the incoming bytes from the underlying request.Body.
type IncomingTrafficMeter struct {
io.ReadCloser
countBytes int
}
// Read calls the underlying Read and counts the transferred bytes.
func (r *IncomingTrafficMeter) Read(p []byte) (n int, err error) {
n, err = r.ReadCloser.Read(p)
r.countBytes += n
return n, err
}
// BytesCount returns the number of transferred bytes
func (r IncomingTrafficMeter) BytesCount() int {
return r.countBytes
}
// OutgoingTrafficMeter counts the outgoing bytes through the responseWriter.
type OutgoingTrafficMeter struct {
// wrapper for underlying http.ResponseWriter.
http.ResponseWriter
countBytes int
}
// Write calls the underlying write and counts the output bytes
func (w *OutgoingTrafficMeter) Write(p []byte) (n int, err error) {
n, err = w.ResponseWriter.Write(p)
w.countBytes += n
return n, err
}
// Flush calls the underlying Flush.
func (w *OutgoingTrafficMeter) Flush() {
w.ResponseWriter.(http.Flusher).Flush()
}
// BytesCount returns the number of transferred bytes
func (w OutgoingTrafficMeter) BytesCount() int {
return w.countBytes
}