diff options
Diffstat (limited to 'vendor/golang.org/x/net/trace/trace.go')
| -rw-r--r-- | vendor/golang.org/x/net/trace/trace.go | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/vendor/golang.org/x/net/trace/trace.go b/vendor/golang.org/x/net/trace/trace.go index ecd766e..64f56a3 100644 --- a/vendor/golang.org/x/net/trace/trace.go +++ b/vendor/golang.org/x/net/trace/trace.go @@ -238,7 +238,7 @@ func Render(w io.Writer, req *http.Request, sensitive bool) { completedMu.RLock() defer completedMu.RUnlock() - if err := pageTmpl.ExecuteTemplate(w, "Page", data); err != nil { + if err := pageTmpl().ExecuteTemplate(w, "Page", data); err != nil { log.Printf("net/trace: Failed executing template: %v", err) } } @@ -902,10 +902,18 @@ func elapsed(d time.Duration) string { return string(b) } -var pageTmpl = template.Must(template.New("Page").Funcs(template.FuncMap{ - "elapsed": elapsed, - "add": func(a, b int) int { return a + b }, -}).Parse(pageHTML)) +var pageTmplCache *template.Template +var pageTmplOnce sync.Once + +func pageTmpl() *template.Template { + pageTmplOnce.Do(func() { + pageTmplCache = template.Must(template.New("Page").Funcs(template.FuncMap{ + "elapsed": elapsed, + "add": func(a, b int) int { return a + b }, + }).Parse(pageHTML)) + }) + return pageTmplCache +} const pageHTML = ` {{template "Prolog" .}} |