mirror of
https://github.com/langhuihui/monibuca.git
synced 2025-09-27 03:25:56 +08:00
61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
// Copyright 2022 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package driver
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import (
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"encoding/json"
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"html/template"
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"net/http"
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"m7s.live/v5/plugin/debug/pkg/internal/measurement"
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)
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// stackView generates the flamegraph view.
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func (ui *webInterface) stackView(w http.ResponseWriter, req *http.Request) {
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// Get all data in a report.
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rpt, errList := ui.makeReport(w, req, []string{"svg"}, func(cfg *config) {
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cfg.CallTree = true
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cfg.Trim = false
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if cfg.Granularity == "" {
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cfg.Granularity = "filefunctions"
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}
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})
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if rpt == nil {
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return // error already reported
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}
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// Make stack data and generate corresponding JSON.
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stacks := rpt.Stacks()
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b, err := json.Marshal(stacks)
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if err != nil {
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http.Error(w, "error serializing stacks for flame graph",
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http.StatusInternalServerError)
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ui.options.UI.PrintErr(err)
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return
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}
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nodes := make([]string, len(stacks.Sources))
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for i, src := range stacks.Sources {
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nodes[i] = src.FullName
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}
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nodes[0] = "" // root is not a real node
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ui.render(w, req, "stacks", rpt, errList, stacks.Legend(), webArgs{
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Stacks: template.JS(b),
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Nodes: nodes,
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UnitDefs: measurement.UnitTypes,
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})
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}
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