// Package pprof provides native pprof support via middleware. See _examples/miscellaneous/pprof
package pprof
import (
"html/template"
"net/http/pprof"
rpprof "runtime/pprof"
"strings"
"github.com/kataras/iris/v12/context"
"github.com/kataras/iris/v12/core/handlerconv"
)
// New returns a new pprof (profile, cmdline, symbol, goroutine, heap, threadcreate, debug/block) Middleware.
// Note: Route MUST have the last named parameter wildcard named '{action:path}'
func New() context.Handler {
cmdlineHandler := handlerconv.FromStd(pprof.Cmdline)
profileHandler := handlerconv.FromStd(pprof.Profile)
symbolHandler := handlerconv.FromStd(pprof.Symbol)
goroutineHandler := handlerconv.FromStd(pprof.Handler("goroutine"))
heapHandler := handlerconv.FromStd(pprof.Handler("heap"))
threadcreateHandler := handlerconv.FromStd(pprof.Handler("threadcreate"))
debugBlockHandler := handlerconv.FromStd(pprof.Handler("block"))
return func(ctx context.Context) {
ctx.ContentType("text/html")
action := ctx.Params().Get("action")
if action != "" {
if strings.Contains(action, "cmdline") {
cmdlineHandler((ctx))
} else if strings.Contains(action, "profile") {
profileHandler(ctx)
} else if strings.Contains(action, "symbol") {
symbolHandler(ctx)
} else if strings.Contains(action, "goroutine") {
goroutineHandler(ctx)
} else if strings.Contains(action, "heap") {
heapHandler(ctx)
} else if strings.Contains(action, "threadcreate") {
threadcreateHandler(ctx)
} else if strings.Contains(action, "debug/block") {
debugBlockHandler(ctx)
}
return
}
profiles := rpprof.Profiles()
data := map[string]interface{}{
"Profiles": profiles,
"Path": ctx.RequestPath(false),
}
if err := indexTmpl.Execute(ctx, data); err != nil {
ctx.Application().Logger().Error(err)
}
}
}
var indexTmpl = template.Must(template.New("index").Parse(`<html>
<head>
<title>/{{.Path}}</title>
</head>
<body>
{{.Path}}<br>
<br>
profiles:<br>
<table>
{{$path := .Path}}
{{range .Profiles}}
<tr><td align=right>{{.Count}}<td><a href="{{$path}}/{{.Name}}?debug=1">{{.Name}}</a>
{{end}}
</table>
<br>
<a href="{{$path}}/goroutine?debug=2">full goroutine stack dump</a><br>
</body>
</html>
`))