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path: root/src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go
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Diffstat (limited to 'src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go')
-rw-r--r--src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go143
1 files changed, 82 insertions, 61 deletions
diff --git a/src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go b/src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go
index 4006085538..52dc68809c 100644
--- a/src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go
+++ b/src/cmd/vendor/github.com/google/pprof/internal/driver/webui.go
@@ -35,22 +35,28 @@ import (
// webInterface holds the state needed for serving a browser based interface.
type webInterface struct {
- prof *profile.Profile
- options *plugin.Options
- help map[string]string
- templates *template.Template
+ prof *profile.Profile
+ options *plugin.Options
+ help map[string]string
+ templates *template.Template
+ settingsFile string
}
-func makeWebInterface(p *profile.Profile, opt *plugin.Options) *webInterface {
+func makeWebInterface(p *profile.Profile, opt *plugin.Options) (*webInterface, error) {
+ settingsFile, err := settingsFileName()
+ if err != nil {
+ return nil, err
+ }
templates := template.New("templategroup")
addTemplates(templates)
report.AddSourceTemplates(templates)
return &webInterface{
- prof: p,
- options: opt,
- help: make(map[string]string),
- templates: templates,
- }
+ prof: p,
+ options: opt,
+ help: make(map[string]string),
+ templates: templates,
+ settingsFile: settingsFile,
+ }, nil
}
// maxEntries is the maximum number of entries to print for text interfaces.
@@ -80,6 +86,7 @@ type webArgs struct {
TextBody string
Top []report.TextItem
FlameGraph template.JS
+ Configs []configMenuEntry
}
func serveWebInterface(hostport string, p *profile.Profile, o *plugin.Options, disableBrowser bool) error {
@@ -88,16 +95,20 @@ func serveWebInterface(hostport string, p *profile.Profile, o *plugin.Options, d
return err
}
interactiveMode = true
- ui := makeWebInterface(p, o)
+ ui, err := makeWebInterface(p, o)
+ if err != nil {
+ return err
+ }
for n, c := range pprofCommands {
ui.help[n] = c.description
}
- for n, v := range pprofVariables {
- ui.help[n] = v.help
+ for n, help := range configHelp {
+ ui.help[n] = help
}
ui.help["details"] = "Show information about the profile and this view"
ui.help["graph"] = "Display profile as a directed graph"
ui.help["reset"] = "Show the entire profile"
+ ui.help["save_config"] = "Save current settings"
server := o.HTTPServer
if server == nil {
@@ -108,12 +119,14 @@ func serveWebInterface(hostport string, p *profile.Profile, o *plugin.Options, d
Host: host,
Port: port,
Handlers: map[string]http.Handler{
- "/": http.HandlerFunc(ui.dot),
- "/top": http.HandlerFunc(ui.top),
- "/disasm": http.HandlerFunc(ui.disasm),
- "/source": http.HandlerFunc(ui.source),
- "/peek": http.HandlerFunc(ui.peek),
- "/flamegraph": http.HandlerFunc(ui.flamegraph),
+ "/": http.HandlerFunc(ui.dot),
+ "/top": http.HandlerFunc(ui.top),
+ "/disasm": http.HandlerFunc(ui.disasm),
+ "/source": http.HandlerFunc(ui.source),
+ "/peek": http.HandlerFunc(ui.peek),
+ "/flamegraph": http.HandlerFunc(ui.flamegraph),
+ "/saveconfig": http.HandlerFunc(ui.saveConfig),
+ "/deleteconfig": http.HandlerFunc(ui.deleteConfig),
},
}
@@ -206,21 +219,9 @@ func isLocalhost(host string) bool {
func openBrowser(url string, o *plugin.Options) {
// Construct URL.
- u, _ := gourl.Parse(url)
- q := u.Query()
- for _, p := range []struct{ param, key string }{
- {"f", "focus"},
- {"s", "show"},
- {"sf", "show_from"},
- {"i", "ignore"},
- {"h", "hide"},
- {"si", "sample_index"},
- } {
- if v := pprofVariables[p.key].value; v != "" {
- q.Set(p.param, v)
- }
- }
- u.RawQuery = q.Encode()
+ baseURL, _ := gourl.Parse(url)
+ current := currentConfig()
+ u, _ := current.makeURL(*baseURL)
// Give server a little time to get ready.
time.Sleep(time.Millisecond * 500)
@@ -240,28 +241,23 @@ func openBrowser(url string, o *plugin.Options) {
o.UI.PrintErr(u.String())
}
-func varsFromURL(u *gourl.URL) variables {
- vars := pprofVariables.makeCopy()
- vars["focus"].value = u.Query().Get("f")
- vars["show"].value = u.Query().Get("s")
- vars["show_from"].value = u.Query().Get("sf")
- vars["ignore"].value = u.Query().Get("i")
- vars["hide"].value = u.Query().Get("h")
- vars["sample_index"].value = u.Query().Get("si")
- return vars
-}
-
// makeReport generates a report for the specified command.
+// If configEditor is not null, it is used to edit the config used for the report.
func (ui *webInterface) makeReport(w http.ResponseWriter, req *http.Request,
- cmd []string, vars ...string) (*report.Report, []string) {
- v := varsFromURL(req.URL)
- for i := 0; i+1 < len(vars); i += 2 {
- v[vars[i]].value = vars[i+1]
+ cmd []string, configEditor func(*config)) (*report.Report, []string) {
+ cfg := currentConfig()
+ if err := cfg.applyURL(req.URL.Query()); err != nil {
+ http.Error(w, err.Error(), http.StatusBadRequest)
+ ui.options.UI.PrintErr(err)
+ return nil, nil
+ }
+ if configEditor != nil {
+ configEditor(&cfg)
}
catcher := &errorCatcher{UI: ui.options.UI}
options := *ui.options
options.UI = catcher
- _, rpt, err := generateRawReport(ui.prof, cmd, v, &options)
+ _, rpt, err := generateRawReport(ui.prof, cmd, cfg, &options)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
ui.options.UI.PrintErr(err)
@@ -271,7 +267,7 @@ func (ui *webInterface) makeReport(w http.ResponseWriter, req *http.Request,
}
// render generates html using the named template based on the contents of data.
-func (ui *webInterface) render(w http.ResponseWriter, tmpl string,
+func (ui *webInterface) render(w http.ResponseWriter, req *http.Request, tmpl string,
rpt *report.Report, errList, legend []string, data webArgs) {
file := getFromLegend(legend, "File: ", "unknown")
profile := getFromLegend(legend, "Type: ", "unknown")
@@ -281,6 +277,8 @@ func (ui *webInterface) render(w http.ResponseWriter, tmpl string,
data.SampleTypes = sampleTypes(ui.prof)
data.Legend = legend
data.Help = ui.help
+ data.Configs = configMenu(ui.settingsFile, *req.URL)
+
html := &bytes.Buffer{}
if err := ui.templates.ExecuteTemplate(html, tmpl, data); err != nil {
http.Error(w, "internal template error", http.StatusInternalServerError)
@@ -293,7 +291,7 @@ func (ui *webInterface) render(w http.ResponseWriter, tmpl string,
// dot generates a web page containing an svg diagram.
func (ui *webInterface) dot(w http.ResponseWriter, req *http.Request) {
- rpt, errList := ui.makeReport(w, req, []string{"svg"})
+ rpt, errList := ui.makeReport(w, req, []string{"svg"}, nil)
if rpt == nil {
return // error already reported
}
@@ -320,7 +318,7 @@ func (ui *webInterface) dot(w http.ResponseWriter, req *http.Request) {
nodes = append(nodes, n.Info.Name)
}
- ui.render(w, "graph", rpt, errList, legend, webArgs{
+ ui.render(w, req, "graph", rpt, errList, legend, webArgs{
HTMLBody: template.HTML(string(svg)),
Nodes: nodes,
})
@@ -345,7 +343,9 @@ func dotToSvg(dot []byte) ([]byte, error) {
}
func (ui *webInterface) top(w http.ResponseWriter, req *http.Request) {
- rpt, errList := ui.makeReport(w, req, []string{"top"}, "nodecount", "500")
+ rpt, errList := ui.makeReport(w, req, []string{"top"}, func(cfg *config) {
+ cfg.NodeCount = 500
+ })
if rpt == nil {
return // error already reported
}
@@ -355,7 +355,7 @@ func (ui *webInterface) top(w http.ResponseWriter, req *http.Request) {
nodes = append(nodes, item.Name)
}
- ui.render(w, "top", rpt, errList, legend, webArgs{
+ ui.render(w, req, "top", rpt, errList, legend, webArgs{
Top: top,
Nodes: nodes,
})
@@ -364,7 +364,7 @@ func (ui *webInterface) top(w http.ResponseWriter, req *http.Request) {
// disasm generates a web page containing disassembly.
func (ui *webInterface) disasm(w http.ResponseWriter, req *http.Request) {
args := []string{"disasm", req.URL.Query().Get("f")}
- rpt, errList := ui.makeReport(w, req, args)
+ rpt, errList := ui.makeReport(w, req, args, nil)
if rpt == nil {
return // error already reported
}
@@ -377,7 +377,7 @@ func (ui *webInterface) disasm(w http.ResponseWriter, req *http.Request) {
}
legend := report.ProfileLabels(rpt)
- ui.render(w, "plaintext", rpt, errList, legend, webArgs{
+ ui.render(w, req, "plaintext", rpt, errList, legend, webArgs{
TextBody: out.String(),
})
@@ -387,7 +387,7 @@ func (ui *webInterface) disasm(w http.ResponseWriter, req *http.Request) {
// data.
func (ui *webInterface) source(w http.ResponseWriter, req *http.Request) {
args := []string{"weblist", req.URL.Query().Get("f")}
- rpt, errList := ui.makeReport(w, req, args)
+ rpt, errList := ui.makeReport(w, req, args, nil)
if rpt == nil {
return // error already reported
}
@@ -401,7 +401,7 @@ func (ui *webInterface) source(w http.ResponseWriter, req *http.Request) {
}
legend := report.ProfileLabels(rpt)
- ui.render(w, "sourcelisting", rpt, errList, legend, webArgs{
+ ui.render(w, req, "sourcelisting", rpt, errList, legend, webArgs{
HTMLBody: template.HTML(body.String()),
})
}
@@ -409,7 +409,9 @@ func (ui *webInterface) source(w http.ResponseWriter, req *http.Request) {
// peek generates a web page listing callers/callers.
func (ui *webInterface) peek(w http.ResponseWriter, req *http.Request) {
args := []string{"peek", req.URL.Query().Get("f")}
- rpt, errList := ui.makeReport(w, req, args, "lines", "t")
+ rpt, errList := ui.makeReport(w, req, args, func(cfg *config) {
+ cfg.Granularity = "lines"
+ })
if rpt == nil {
return // error already reported
}
@@ -422,11 +424,30 @@ func (ui *webInterface) peek(w http.ResponseWriter, req *http.Request) {
}
legend := report.ProfileLabels(rpt)
- ui.render(w, "plaintext", rpt, errList, legend, webArgs{
+ ui.render(w, req, "plaintext", rpt, errList, legend, webArgs{
TextBody: out.String(),
})
}
+// saveConfig saves URL configuration.
+func (ui *webInterface) saveConfig(w http.ResponseWriter, req *http.Request) {
+ if err := setConfig(ui.settingsFile, *req.URL); err != nil {
+ http.Error(w, err.Error(), http.StatusBadRequest)
+ ui.options.UI.PrintErr(err)
+ return
+ }
+}
+
+// deleteConfig deletes a configuration.
+func (ui *webInterface) deleteConfig(w http.ResponseWriter, req *http.Request) {
+ name := req.URL.Query().Get("config")
+ if err := removeConfig(ui.settingsFile, name); err != nil {
+ http.Error(w, err.Error(), http.StatusBadRequest)
+ ui.options.UI.PrintErr(err)
+ return
+ }
+}
+
// getFromLegend returns the suffix of an entry in legend that starts
// with param. It returns def if no such entry is found.
func getFromLegend(legend []string, param, def string) string {
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