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