92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"io"
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"net/http"
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"time"
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)
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// records the incoming bytes from the underlying request.Body.
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type recordTrafficRequest struct {
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io.ReadCloser
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isS3Request bool
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}
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// Records the bytes read.
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func (r *recordTrafficRequest) Read(p []byte) (n int, err error) {
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n, err = r.ReadCloser.Read(p)
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globalConnStats.incInputBytes(n)
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if r.isS3Request {
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globalConnStats.incS3InputBytes(n)
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}
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return n, err
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}
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// Records the outgoing bytes through the responseWriter.
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type recordTrafficResponse struct {
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// wrapper for underlying http.ResponseWriter.
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http.ResponseWriter
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isS3Request bool
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}
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// Records the output bytes
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func (r *recordTrafficResponse) Write(p []byte) (n int, err error) {
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n, err = r.ResponseWriter.Write(p)
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globalConnStats.incOutputBytes(n)
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// Check if it is s3 request
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if r.isS3Request {
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globalConnStats.incS3OutputBytes(n)
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}
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return n, err
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}
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// Calls the underlying Flush.
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func (r *recordTrafficResponse) Flush() {
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r.ResponseWriter.(http.Flusher).Flush()
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}
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// Records the outgoing bytes through the responseWriter.
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type recordAPIStats struct {
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http.ResponseWriter
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TTFB time.Time // TimeToFirstByte.
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firstByteRead bool
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respStatusCode int
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isS3Request bool
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}
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// Calls the underlying WriteHeader.
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func (r *recordAPIStats) WriteHeader(i int) {
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r.respStatusCode = i
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r.ResponseWriter.WriteHeader(i)
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}
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// Records the TTFB on the first byte write.
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func (r *recordAPIStats) Write(p []byte) (n int, err error) {
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if !r.firstByteRead {
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r.TTFB = UTCNow()
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r.firstByteRead = true
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}
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return r.ResponseWriter.Write(p)
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}
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// Calls the underlying Flush.
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func (r *recordAPIStats) Flush() {
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r.ResponseWriter.(http.Flusher).Flush()
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}
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