mirror of
https://github.com/netfun2000/rttys_zhaojh329.git
synced 2026-02-27 09:53:24 +08:00
Jianhui Zhao
d1703f44cd
Add --pprof command line option to enable performance profiling Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
143 lines
3.2 KiB
Go
143 lines
3.2 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2019 Jianhui Zhao <zhaojh329@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package main
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import (
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"net"
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"net/http"
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"sync"
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"sync/atomic"
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"github.com/rs/zerolog/log"
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)
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type RttyServer struct {
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mu sync.RWMutex
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groups sync.Map
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cfg Config
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httpProxyPort int
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}
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type DeviceGroup struct {
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devices sync.Map
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count atomic.Int32
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}
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func (srv *RttyServer) Run() error {
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log.Debug().Msgf("%+v", srv.cfg)
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if srv.cfg.PprofAddr != "" {
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go srv.ListenPprof()
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}
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go srv.ListenDevices()
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go srv.ListenHttpProxy()
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return srv.ListenAPI()
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}
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func (srv *RttyServer) ListenPprof() {
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ln, err := net.Listen("tcp", srv.cfg.PprofAddr)
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if err != nil {
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log.Error().Err(err).Msgf("Failed to start pprof server")
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return
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}
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defer ln.Close()
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addr := ln.Addr().(*net.TCPAddr)
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log.Info().Msgf("Starting pprof server on: %s", addr)
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host := addr.IP.String()
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if host == "0.0.0.0" || host == "::" {
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host = "localhost"
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}
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log.Info().Msgf("Access pprof at: http://%s:%d/debug/pprof/", host, addr.Port)
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err = http.Serve(ln, nil)
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if err != nil {
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log.Error().Err(err).Msgf("pprof server failed")
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}
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}
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func (srv *RttyServer) GetDevice(group, id string) *Device {
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srv.mu.RLock()
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defer srv.mu.RUnlock()
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g := srv.GetGroup(group, false)
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if g == nil {
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return nil
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}
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if v, ok := g.devices.Load(id); ok {
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return v.(*Device)
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}
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return nil
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}
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func (srv *RttyServer) AddDevice(dev *Device) bool {
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srv.mu.Lock()
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defer srv.mu.Unlock()
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g := srv.GetGroup(dev.group, true)
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if _, loaded := g.devices.LoadOrStore(dev.id, dev); loaded {
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return false
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}
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g.count.Add(1)
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return true
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}
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func (srv *RttyServer) DelDevice(dev *Device) {
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srv.mu.Lock()
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defer srv.mu.Unlock()
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g := srv.GetGroup(dev.group, false)
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if g == nil {
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return
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}
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if _, loaded := g.devices.LoadAndDelete(dev.id); loaded {
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if g.count.Add(-1) == 0 {
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srv.groups.Delete(dev.group)
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}
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}
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}
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func (srv *RttyServer) GetGroup(group string, create bool) *DeviceGroup {
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if create {
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val, _ := srv.groups.LoadOrStore(group, &DeviceGroup{})
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return val.(*DeviceGroup)
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} else {
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val, ok := srv.groups.Load(group)
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if !ok {
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return nil
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}
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return val.(*DeviceGroup)
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}
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}
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