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mirror of https://github.com/go-gitea/gitea.git synced 2025-01-24 03:31:39 +01:00
gitea/modules/tailmsg/talimsg.go
wxiaoguang 7069369e03
Support performance trace (#32973)
1. Add a OpenTelemetry-like shim-layer to collect traces
2. Add a simple builtin trace collector and exporter, end users could
download the diagnosis report to get the traces.

This PR's design is quite lightweight, no hard-dependency, and it is
easy to improve or remove. We can try it on gitea.com first to see
whether it works well, and fine tune the details.

---------

Co-authored-by: silverwind <me@silverwind.io>
2025-01-21 18:57:07 +00:00

74 lines
1.3 KiB
Go

// Copyright 2025 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package tailmsg
import (
"sync"
"time"
)
type MsgRecord struct {
Time time.Time
Content string
}
type MsgRecorder interface {
Record(content string)
GetRecords() []*MsgRecord
}
type memoryMsgRecorder struct {
mu sync.RWMutex
msgs []*MsgRecord
limit int
}
// TODO: use redis for a clustered environment
func (m *memoryMsgRecorder) Record(content string) {
m.mu.Lock()
defer m.mu.Unlock()
m.msgs = append(m.msgs, &MsgRecord{
Time: time.Now(),
Content: content,
})
if len(m.msgs) > m.limit {
m.msgs = m.msgs[len(m.msgs)-m.limit:]
}
}
func (m *memoryMsgRecorder) GetRecords() []*MsgRecord {
m.mu.RLock()
defer m.mu.RUnlock()
ret := make([]*MsgRecord, len(m.msgs))
copy(ret, m.msgs)
return ret
}
func NewMsgRecorder(limit int) MsgRecorder {
return &memoryMsgRecorder{
limit: limit,
}
}
type Manager struct {
traceRecorder MsgRecorder
logRecorder MsgRecorder
}
func (m *Manager) GetTraceRecorder() MsgRecorder {
return m.traceRecorder
}
func (m *Manager) GetLogRecorder() MsgRecorder {
return m.logRecorder
}
var GetManager = sync.OnceValue(func() *Manager {
return &Manager{
traceRecorder: NewMsgRecorder(100),
logRecorder: NewMsgRecorder(1000),
}
})