mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2025-10-31 16:05:06 +01:00
113 lines
2.3 KiB
Go
113 lines
2.3 KiB
Go
// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
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// All rights reserved. This file is part of cc-backend.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package memorystore
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import (
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"bufio"
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"fmt"
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"strconv"
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)
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func (b *buffer) debugDump(buf []byte) []byte {
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if b.prev != nil {
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buf = b.prev.debugDump(buf)
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}
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start, len, end := b.start, len(b.data), b.start+b.frequency*int64(len(b.data))
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buf = append(buf, `{"start":`...)
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buf = strconv.AppendInt(buf, start, 10)
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buf = append(buf, `,"len":`...)
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buf = strconv.AppendInt(buf, int64(len), 10)
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buf = append(buf, `,"end":`...)
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buf = strconv.AppendInt(buf, end, 10)
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if b.archived {
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buf = append(buf, `,"saved":true`...)
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}
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if b.next != nil {
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buf = append(buf, `},`...)
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} else {
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buf = append(buf, `}`...)
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}
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return buf
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}
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func (l *Level) debugDump(m *MemoryStore, w *bufio.Writer, lvlname string, buf []byte, depth int) ([]byte, error) {
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l.lock.RLock()
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defer l.lock.RUnlock()
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for i := 0; i < depth; i++ {
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buf = append(buf, '\t')
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}
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buf = append(buf, '"')
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buf = append(buf, lvlname...)
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buf = append(buf, "\":{\n"...)
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depth += 1
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objitems := 0
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for name, mc := range m.Metrics {
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if b := l.metrics[mc.offset]; b != nil {
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for i := 0; i < depth; i++ {
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buf = append(buf, '\t')
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}
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buf = append(buf, '"')
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buf = append(buf, name...)
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buf = append(buf, `":[`...)
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buf = b.debugDump(buf)
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buf = append(buf, "],\n"...)
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objitems++
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}
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}
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for name, lvl := range l.children {
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_, err := w.Write(buf)
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if err != nil {
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return nil, err
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}
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buf = buf[0:0]
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buf, err = lvl.debugDump(m, w, name, buf, depth)
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if err != nil {
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return nil, err
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}
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buf = append(buf, ',', '\n')
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objitems++
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}
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// remove final `,`:
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if objitems > 0 {
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buf = append(buf[0:len(buf)-1], '\n')
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}
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depth -= 1
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for i := 0; i < depth; i++ {
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buf = append(buf, '\t')
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}
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buf = append(buf, '}')
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return buf, nil
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}
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func (m *MemoryStore) DebugDump(w *bufio.Writer, selector []string) error {
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lvl := m.root.findLevel(selector)
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if lvl == nil {
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return fmt.Errorf("[METRICSTORE]> not found: %#v", selector)
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}
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buf := make([]byte, 0, 2048)
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buf = append(buf, "{"...)
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buf, err := lvl.debugDump(m, w, "data", buf, 0)
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if err != nil {
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return err
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}
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buf = append(buf, "}\n"...)
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if _, err = w.Write(buf); err != nil {
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return err
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}
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return w.Flush()
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}
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