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http, cache: Expose cache stats

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This commit is contained in:
Martin Polden
2020-09-11 20:52:35 +02:00
parent df49848167
commit ceaff84709
3 changed files with 49 additions and 0 deletions
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19
http/http.go
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@ -271,6 +271,24 @@ func (s *Server) PortHandler(w http.ResponseWriter, r *http.Request) *appError {
return nil
}
func (s *Server) cacheHandler(w http.ResponseWriter, r *http.Request) *appError {
cacheStats := s.cache.Stats()
var data = struct {
Size int `json:"size"`
Capacity int `json:"capacity"`
}{
cacheStats.Size,
cacheStats.Capacity,
}
b, err := json.Marshal(data)
if err != nil {
return internalServerError(err).AsJSON()
}
w.Header().Set("Content-Type", jsonMediaType)
w.Write(b)
return nil
}
func (s *Server) DefaultHandler(w http.ResponseWriter, r *http.Request) *appError {
response, err := s.newResponse(r)
if err != nil {
@ -391,6 +409,7 @@ func (s *Server) Handler() http.Handler {
// Profiling
if s.profile {
r.Route("GET", "/debug/cache/", s.cacheHandler)
r.Route("GET", "/debug/pprof/cmdline", wrapHandlerFunc(pprof.Cmdline))
r.Route("GET", "/debug/pprof/profile", wrapHandlerFunc(pprof.Profile))
r.Route("GET", "/debug/pprof/symbol", wrapHandlerFunc(pprof.Symbol))