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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "net/http" | ||
| "net/http/pprof" | ||
| "time" | ||
|
|
||
| "github.com/go-echarts/go-echarts/v2/components" | ||
| "github.com/go-echarts/go-echarts/v2/templates" | ||
| "github.com/rs/cors" | ||
| "github.com/smallnest/statsview/statics" | ||
| "github.com/smallnest/statsview/viewer" | ||
| ) | ||
|
|
||
| // ViewManager | ||
| type ViewManager struct { | ||
| ln net.Listener | ||
| srv *http.Server | ||
|
|
||
| Smgr *viewer.StatsMgr | ||
| Ctx context.Context | ||
| Cancel context.CancelFunc | ||
| Views []viewer.Viewer | ||
| } | ||
|
|
||
| // Register registers views to the ViewManager | ||
| func (vm *ViewManager) Register(views ...viewer.Viewer) { | ||
| vm.Views = append(vm.Views, views...) | ||
|
|
||
| } | ||
|
|
||
| // Start runs a http server and begin to collect metrics | ||
| func (vm *ViewManager) Start() error { | ||
| return vm.srv.Serve(vm.ln) | ||
| } | ||
|
|
||
| // Stop shutdown the http server gracefully | ||
| func (vm *ViewManager) Stop() { | ||
| ctx, cancel := context.WithTimeout(context.Background(), time.Second) | ||
| defer cancel() | ||
| vm.srv.Shutdown(ctx) | ||
| vm.Cancel() | ||
| } | ||
|
|
||
| func init() { | ||
| templates.PageTpl = ` | ||
| {{- define "page" }} | ||
| <!DOCTYPE html> | ||
| <html> | ||
| {{- template "header" . }} | ||
| <body> | ||
| <p> rpcx profiler</em></p> | ||
| <style> .box { justify-content:center; display:flex; flex-wrap:wrap } </style> | ||
| <div class="box"> {{- range .Charts }} {{ template "base" . }} {{- end }} </div> | ||
| </body> | ||
| </html> | ||
| {{ end }} | ||
| ` | ||
| } | ||
|
|
||
| // NewViewManager creates a new ViewManager instance | ||
| func NewViewManager(ln net.Listener) *ViewManager { | ||
| viewer.SetConfiguration(viewer.WithAddr(ln.Addr().String()), viewer.WithLinkAddr(ln.Addr().String())) | ||
|
|
||
| page := components.NewPage() | ||
| page.PageTitle = "Statsview" | ||
| page.AssetsHost = fmt.Sprintf("http://%s/debug/statsview/statics/", viewer.LinkAddr()) | ||
| page.Assets.JSAssets.Add("jquery.min.js") | ||
|
|
||
| srv := &http.Server{ | ||
| ReadTimeout: time.Minute, | ||
| WriteTimeout: time.Minute, | ||
| MaxHeaderBytes: 1 << 20, | ||
| } | ||
|
|
||
| mgr := &ViewManager{ | ||
| ln: ln, | ||
| srv: srv, | ||
| } | ||
|
|
||
| mgr.Ctx, mgr.Cancel = context.WithCancel(context.Background()) | ||
| mgr.Register( | ||
| viewer.NewGoroutinesViewer(), | ||
| viewer.NewHeapViewer(), | ||
| viewer.NewStackViewer(), | ||
| viewer.NewGCNumViewer(), | ||
| viewer.NewGCSizeViewer(), | ||
| viewer.NewGCCPUFractionViewer(), | ||
| ) | ||
| smgr := viewer.NewStatsMgr(mgr.Ctx) | ||
| for _, v := range mgr.Views { | ||
| v.SetStatsMgr(smgr) | ||
| } | ||
|
|
||
| mux := http.NewServeMux() | ||
| mux.HandleFunc("/debug/pprof/", pprof.Index) | ||
| mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline) | ||
| mux.HandleFunc("/debug/pprof/profile", pprof.Profile) | ||
| mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol) | ||
| mux.HandleFunc("/debug/pprof/trace", pprof.Trace) | ||
|
|
||
| for _, v := range mgr.Views { | ||
| page.AddCharts(v.View()) | ||
| mux.HandleFunc("/debug/statsview/view/"+v.Name(), v.Serve) | ||
| } | ||
|
|
||
| mux.HandleFunc("/debug/statsview", func(w http.ResponseWriter, _ *http.Request) { | ||
| page.Render(w) | ||
| }) | ||
|
|
||
| staticsPrev := "/debug/statsview/statics/" | ||
| mux.HandleFunc(staticsPrev+"echarts.min.js", func(w http.ResponseWriter, _ *http.Request) { | ||
| w.Write([]byte(statics.EchartJS)) | ||
| }) | ||
|
|
||
| mux.HandleFunc(staticsPrev+"jquery.min.js", func(w http.ResponseWriter, _ *http.Request) { | ||
| w.Write([]byte(statics.JqueryJS)) | ||
| }) | ||
|
|
||
| mux.HandleFunc(staticsPrev+"themes/westeros.js", func(w http.ResponseWriter, _ *http.Request) { | ||
| w.Write([]byte(statics.WesterosJS)) | ||
| }) | ||
|
|
||
| mux.HandleFunc(staticsPrev+"themes/macarons.js", func(w http.ResponseWriter, _ *http.Request) { | ||
| w.Write([]byte(statics.MacaronsJS)) | ||
| }) | ||
|
|
||
| mgr.srv.Handler = cors.AllowAll().Handler(mux) | ||
|
|
||
| return mgr | ||
| } |
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