Function Handler

pprof.go:87–173

Handler returns a http handler which responds with the pprof-formatted profile named by the request. For example, "/debug/pprof/heap" serves the "heap" profile. Handler responds to a request for "/debug/pprof/" with an HTML page listing the available profiles.

(sampleRate float64, profilers ...Profiler)

// Handler responds to a request for "/debug/pprof/" with an HTML page listing
// the available profiles.
func Handler(sampleRate float64, profilers ...Profiler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var guest, host []profileEntry

		for _, p := range profilers {
			guest = append(guest, profileEntry{
				Name:    p.Name(),
				Href:    p.Name(),
				Desc:    p.Desc(),
				Count:   p.Count(),
				Handler: p.NewHandler(sampleRate),
			})
		}

		// Add host profiling debug entries.
		host = append(host, profileEntry{
			Name:    "cmdline",
			Href:    "cmdline",
			Desc:    profileDescriptions["cmdline"],
			Handler: http.HandlerFunc(httpprof.Cmdline),
			Debug:   1,
		})

		host = append(host, profileEntry{
			Name:    "profile",
			Href:    "profile",
			Desc:    profileDescriptions["profile"],
			Handler: http.HandlerFunc(httpprof.Profile),
			Debug:   1,
		})

		host = append(host, profileEntry{
			Name:    "trace",
			Href:    "trace",
			Desc:    profileDescriptions["trace"],
			Handler: http.HandlerFunc(httpprof.Trace),
			Debug:   1,
		})

		for _, p := range pprof.Profiles() {
			host = append(host, profileEntry{
				Name:    p.Name(),
				Href:    p.Name(),
				Desc:    profileDescriptions[p.Name()],
				Count:   p.Count(),
				Handler: httpprof.Handler(p.Name()),
				Debug:   1,
			})
		}

		p := pprof.Lookup("goroutine")
		host = append(host, profileEntry{
			Name:    "full goroutine stack dump",
			Href:    p.Name(),
			Count:   p.Count(),
			Handler: httpprof.Handler(p.Name()),
			Debug:   2,
		})