package box import ( "net/http" "net/http/pprof" "runtime" "runtime/debug" "github.com/sagernet/sing-box/common/badjson" "github.com/sagernet/sing-box/common/humanize" "github.com/sagernet/sing-box/common/json" "github.com/sagernet/sing-box/log" "github.com/sagernet/sing-box/option" E "github.com/sagernet/sing/common/exceptions" "github.com/go-chi/chi/v5" ) var debugHTTPServer *http.Server func applyDebugListenOption(options option.DebugOptions) { if debugHTTPServer != nil { debugHTTPServer.Close() debugHTTPServer = nil } if options.Listen == "" { return } r := chi.NewMux() r.Route("/debug", func(r chi.Router) { r.Get("/gc", func(writer http.ResponseWriter, request *http.Request) { writer.WriteHeader(http.StatusNoContent) go debug.FreeOSMemory() }) r.Get("/memory", func(writer http.ResponseWriter, request *http.Request) { var memStats runtime.MemStats runtime.ReadMemStats(&memStats) var memObject badjson.JSONObject memObject.Put("heap", humanize.MemoryBytes(memStats.HeapInuse)) memObject.Put("stack", humanize.MemoryBytes(memStats.StackInuse)) memObject.Put("idle", humanize.MemoryBytes(memStats.HeapIdle-memStats.HeapReleased)) memObject.Put("goroutines", runtime.NumGoroutine()) memObject.Put("rss", rusageMaxRSS()) encoder := json.NewEncoder(writer) encoder.SetIndent("", " ") encoder.Encode(memObject) }) r.HandleFunc("/pprof", pprof.Index) r.HandleFunc("/pprof/*", pprof.Index) r.HandleFunc("/pprof/cmdline", pprof.Cmdline) r.HandleFunc("/pprof/profile", pprof.Profile) r.HandleFunc("/pprof/symbol", pprof.Symbol) r.HandleFunc("/pprof/trace", pprof.Trace) }) debugHTTPServer = &http.Server{ Addr: options.Listen, Handler: r, } go func() { err := debugHTTPServer.ListenAndServe() if err != nil && !E.IsClosed(err) { log.Error(E.Cause(err, "serve debug HTTP server")) } }() }