forked from coredns/coredns
/
pprof.go
49 lines (41 loc) · 867 Bytes
/
pprof.go
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// Package pprof implement a debug endpoint for getting profiles using the
// go pprof tooling.
package pprof
import (
"log"
"net"
"net/http"
pp "net/http/pprof"
)
type handler struct {
addr string
ln net.Listener
mux *http.ServeMux
}
func (h *handler) Startup() error {
ln, err := net.Listen("tcp", h.addr)
if err != nil {
log.Printf("[ERROR] Failed to start pprof handler: %s", err)
return err
}
h.ln = ln
h.mux = http.NewServeMux()
h.mux.HandleFunc(path+"/", pp.Index)
h.mux.HandleFunc(path+"/cmdline", pp.Cmdline)
h.mux.HandleFunc(path+"/profile", pp.Profile)
h.mux.HandleFunc(path+"/symbol", pp.Symbol)
h.mux.HandleFunc(path+"/trace", pp.Trace)
go func() {
http.Serve(h.ln, h.mux)
}()
return nil
}
func (h *handler) Shutdown() error {
if h.ln != nil {
return h.ln.Close()
}
return nil
}
const (
path = "/debug/pprof"
)