GoToSocial/vendor/codeberg.org/gruf/go-debug/pprof_on.go
kim acc95923da
[performance] processing media and scheduled jobs improvements (#1482)
* replace media workers with just runners.WorkerPool, move to state structure, use go-sched for global task scheduling

* improved code comment

* fix worker tryUntil function, update go-runners/go-sched

* make preprocess functions package public, use these where possible to stop doubled up processing

* remove separate emoji worker pool

* limit calls to time.Now() during media preprocessing

* use Processor{} to manage singular runtime of processing media

* ensure workers get started when media manager is used

* improved error setting in processing media, fix media test

* port changes from processingmedia to processing emoji

* finish code commenting

* finish code commenting and comment-out client API + federator worker pools until concurrency worker pools replaced

* linterrrrrrrrrrrrrrrr

---------

Signed-off-by: kim <grufwub@gmail.com>
2023-02-13 18:40:48 +00:00

64 lines
1.5 KiB
Go

//go:build debug || debugenv
// +build debug debugenv
package debug
import (
"net/http"
"net/http/pprof"
"strings"
)
// ServePprof will start an HTTP server serving /debug/pprof only if debug enabled.
func ServePprof(addr string) error {
if !DEBUG {
// debug disabled in env
return nil
}
handler := WithPprof(nil)
return http.ListenAndServe(addr, handler)
}
// WithPprof will add /debug/pprof handling (provided by "net/http/pprof") only if debug enabled.
func WithPprof(handler http.Handler) http.Handler {
if !DEBUG {
// debug disabled in env
return handler
}
// Default serve mux is setup with pprof
pprofmux := http.DefaultServeMux
if pprofmux == nil {
// Someone nil'ed the default mux
pprofmux = &http.ServeMux{}
pprofmux.HandleFunc("/debug/pprof/", pprof.Index)
pprofmux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
pprofmux.HandleFunc("/debug/pprof/profile", pprof.Profile)
pprofmux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
pprofmux.HandleFunc("/debug/pprof/trace", pprof.Trace)
}
if handler == nil {
// Ensure handler is non-nil
handler = http.NotFoundHandler()
}
// Debug enabled, return wrapped handler func
return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
const prefix = "/debug/pprof"
// /debug/pprof(/.*)? -> pass to pprofmux
if strings.HasPrefix(r.URL.Path, prefix) {
path := r.URL.Path[len(prefix):]
if path == "" || path[0] == '/' {
pprofmux.ServeHTTP(rw, r)
return
}
}
// .* -> pass to handler
handler.ServeHTTP(rw, r)
})
}