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129 lines
2.9 KiB
129 lines
2.9 KiB
/*
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* Minio Cloud Storage, (C) 2017 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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"net/http"
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"sync/atomic"
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)
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// counter - simplify atomic counting
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type counter struct {
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val uint64
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}
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// Inc increases counter atomically
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func (c *counter) Inc(n uint64) {
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atomic.AddUint64(&c.val, n)
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}
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// Value fetches counter's value atomically
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func (c *counter) Value() uint64 {
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return atomic.LoadUint64(&c.val)
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}
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// ConnStats - Network statistics
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// Count total input/output transferred bytes during
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// the server's life.
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type ConnStats struct {
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totalInputBytes counter
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totalOutputBytes counter
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}
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// Increase total input bytes
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func (s *ConnStats) incInputBytes(n int) {
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s.totalInputBytes.Inc(uint64(n))
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}
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// Increase total output bytes
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func (s *ConnStats) incOutputBytes(n int) {
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s.totalOutputBytes.Inc(uint64(n))
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}
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// Return total input bytes
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func (s *ConnStats) getTotalInputBytes() uint64 {
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return s.totalInputBytes.Value()
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}
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// Return total output bytes
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func (s *ConnStats) getTotalOutputBytes() uint64 {
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return s.totalOutputBytes.Value()
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}
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// Prepare new ConnStats structure
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func newConnStats() *ConnStats {
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return &ConnStats{}
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}
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// httpStats holds statistics information about
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// HTTP requests made by all clients
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type httpStats struct {
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// HEAD request stats
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totalHEADs counter
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successHEADs counter
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// GET request stats
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totalGETs counter
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successGETs counter
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// PUT request
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totalPUTs counter
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successPUTs counter
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// POST request
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totalPOSTs counter
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successPOSTs counter
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// DELETE request
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totalDELETEs counter
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successDELETEs counter
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}
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// Update statistics from http request and response data
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func (st *httpStats) updateStats(r *http.Request, w *httpResponseRecorder) {
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// A successful request has a 2xx response code
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successReq := (w.respStatusCode >= 200 && w.respStatusCode < 300)
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// Update stats according to method verb
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switch r.Method {
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case "HEAD":
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st.totalHEADs.Inc(1)
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if successReq {
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st.successHEADs.Inc(1)
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}
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case "GET":
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st.totalGETs.Inc(1)
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if successReq {
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st.successGETs.Inc(1)
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}
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case "PUT":
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st.totalPUTs.Inc(1)
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if successReq {
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st.successPUTs.Inc(1)
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}
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case "POST":
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st.totalPOSTs.Inc(1)
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if successReq {
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st.successPOSTs.Inc(1)
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}
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case "DELETE":
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st.totalDELETEs.Inc(1)
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if successReq {
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st.successDELETEs.Inc(1)
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}
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}
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}
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// Prepare new HttpStats structure
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func newHTTPStats() *httpStats {
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return &httpStats{}
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}
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