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Merge pull request #386 from askuy/feature/optimizecontextcancel
增加timeoutcause
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,189 @@ | ||
| // Copyright 2015 The Prometheus Authors | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| package emetric | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "path" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/gotomicro/ego/core/elog" | ||
| ) | ||
|
|
||
| type tcpConnectionState int | ||
|
|
||
| const ( | ||
| // TCP_ESTABLISHED | ||
| tcpEstablished tcpConnectionState = iota + 1 | ||
| // TCP_SYN_SENT | ||
| tcpSynSent | ||
| // TCP_SYN_RECV | ||
| tcpSynRecv | ||
| // TCP_FIN_WAIT1 | ||
| tcpFinWait1 | ||
| // TCP_FIN_WAIT2 | ||
| tcpFinWait2 | ||
| // TCP_TIME_WAIT | ||
| tcpTimeWait | ||
| // TCP_CLOSE | ||
| tcpClose | ||
| // TCP_CLOSE_WAIT | ||
| tcpCloseWait | ||
| // TCP_LAST_ACK | ||
| tcpLastAck | ||
| // TCP_LISTEN | ||
| tcpListen | ||
| // TCP_CLOSING | ||
| tcpClosing | ||
| // TCP_RX_BUFFER | ||
| //tcpRxQueuedBytes | ||
| // TCP_TX_BUFFER | ||
| //tcpTxQueuedBytes | ||
| ) | ||
|
|
||
| type TcpStatCollector struct { | ||
| } | ||
|
|
||
| // NewTCPStatCollector returns a new Collector exposing network stats. | ||
| func NewTCPStatCollector() (*TcpStatCollector, error) { | ||
| return &TcpStatCollector{}, nil | ||
| } | ||
|
|
||
| func (c *TcpStatCollector) Update() error { | ||
| go func() { | ||
| statsFile := path.Join("/proc", strconv.Itoa(os.Getpid()), "net", "tcp") | ||
| tcpStats, err := getTCPStats(statsFile) | ||
| if err != nil { | ||
| elog.EgoLogger.Error(fmt.Errorf("couldn't get tcpstats: %w", err).Error()) | ||
| return | ||
| } | ||
| for { | ||
| for name, value := range tcpStats { | ||
| ConnGauge.WithLabelValues( | ||
| name.String(), | ||
| ).Set(value) | ||
| time.Sleep(5 * time.Second) | ||
| } | ||
| } | ||
| }() | ||
|
|
||
| // if enabled ipv6 system | ||
| //tcp6File := procFilePath("net/tcp6") | ||
| //if _, hasIPv6 := os.Stat(tcp6File); hasIPv6 == nil { | ||
| // tcp6Stats, err := getTCPStats(tcp6File) | ||
| // if err != nil { | ||
| // return fmt.Errorf("couldn't get tcp6stats: %w", err) | ||
| // } | ||
| // | ||
| // for st, value := range tcp6Stats { | ||
| // tcpStats[st] += value | ||
| // } | ||
| //} | ||
|
|
||
| //for st, value := range tcpStats { | ||
| // ch <- c.desc.mustNewConstMetric(value, st.String()) | ||
| //} | ||
| return nil | ||
| } | ||
|
|
||
| func getTCPStats(statsFile string) (map[tcpConnectionState]float64, error) { | ||
| file, err := os.Open(statsFile) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer file.Close() | ||
|
|
||
| return parseTCPStats(file) | ||
| } | ||
|
|
||
| func parseTCPStats(r io.Reader) (map[tcpConnectionState]float64, error) { | ||
| tcpStats := map[tcpConnectionState]float64{} | ||
| contents, err := io.ReadAll(r) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| for _, line := range strings.Split(string(contents), "\n")[1:] { | ||
| parts := strings.Fields(line) | ||
| if len(parts) == 0 { | ||
| continue | ||
| } | ||
| if len(parts) < 5 { | ||
| return nil, fmt.Errorf("invalid TCP stats line: %q", line) | ||
| } | ||
|
|
||
| //qu := strings.Split(parts[4], ":") | ||
| //if len(qu) < 2 { | ||
| // return nil, fmt.Errorf("cannot parse tx_queues and rx_queues: %q", line) | ||
| //} | ||
| // | ||
| //tx, err := strconv.ParseUint(qu[0], 16, 64) | ||
| //if err != nil { | ||
| // return nil, err | ||
| //} | ||
| //tcpStats[tcpConnectionState(tcpTxQueuedBytes)] += float64(tx) | ||
| // | ||
| //rx, err := strconv.ParseUint(qu[1], 16, 64) | ||
| //if err != nil { | ||
| // return nil, err | ||
| //} | ||
| //tcpStats[tcpConnectionState(tcpRxQueuedBytes)] += float64(rx) | ||
|
|
||
| st, err := strconv.ParseInt(parts[3], 16, 8) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| tcpStats[tcpConnectionState(st)]++ | ||
|
|
||
| } | ||
|
|
||
| return tcpStats, nil | ||
| } | ||
|
|
||
| func (st tcpConnectionState) String() string { | ||
| switch st { | ||
| case tcpEstablished: | ||
| return "established" | ||
| case tcpSynSent: | ||
| return "syn_sent" | ||
| case tcpSynRecv: | ||
| return "syn_recv" | ||
| case tcpFinWait1: | ||
| return "fin_wait1" | ||
| case tcpFinWait2: | ||
| return "fin_wait2" | ||
| case tcpTimeWait: | ||
| return "time_wait" | ||
| case tcpClose: | ||
| return "close" | ||
| case tcpCloseWait: | ||
| return "close_wait" | ||
| case tcpLastAck: | ||
| return "last_ack" | ||
| case tcpListen: | ||
| return "listen" | ||
| case tcpClosing: | ||
| return "closing" | ||
| //case tcpRxQueuedBytes: | ||
| // return "rx_queued_bytes" | ||
| //case tcpTxQueuedBytes: | ||
| // return "tx_queued_bytes" | ||
| default: | ||
| return "unknown" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,6 @@ | ||
| module github.com/gotomicro/ego | ||
|
|
||
| go 1.21 | ||
|
|
||
| require ( | ||
| github.com/BurntSushi/toml v1.1.0 | ||
|
|
||
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