diff options
Diffstat (limited to 'vendor/golang.org/x/net/trace/histogram.go')
| -rw-r--r-- | vendor/golang.org/x/net/trace/histogram.go | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/vendor/golang.org/x/net/trace/histogram.go b/vendor/golang.org/x/net/trace/histogram.go index bb42aa5..9bf4286 100644 --- a/vendor/golang.org/x/net/trace/histogram.go +++ b/vendor/golang.org/x/net/trace/histogram.go @@ -12,6 +12,7 @@ import ( "html/template" "log" "math" + "sync" "golang.org/x/net/internal/timeseries" ) @@ -320,15 +321,20 @@ func (h *histogram) newData() *data { func (h *histogram) html() template.HTML { buf := new(bytes.Buffer) - if err := distTmpl.Execute(buf, h.newData()); err != nil { + if err := distTmpl().Execute(buf, h.newData()); err != nil { buf.Reset() log.Printf("net/trace: couldn't execute template: %v", err) } return template.HTML(buf.String()) } -// Input: data -var distTmpl = template.Must(template.New("distTmpl").Parse(` +var distTmplCache *template.Template +var distTmplOnce sync.Once + +func distTmpl() *template.Template { + distTmplOnce.Do(func() { + // Input: data + distTmplCache = template.Must(template.New("distTmpl").Parse(` <table> <tr> <td style="padding:0.25em">Count: {{.Count}}</td> @@ -354,3 +360,6 @@ var distTmpl = template.Must(template.New("distTmpl").Parse(` {{end}} </table> `)) + }) + return distTmplCache +} |