1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package log
import (
"context"
"fmt"
"sync"
"sync/atomic"
)
const DEFAULT = "default"
// LoggerManager manages loggers and shared event writers
type LoggerManager struct {
ctx context.Context
ctxCancel context.CancelFunc
mu sync.Mutex
writers map[string]EventWriter
loggers map[string]*LoggerImpl
defaultLogger atomic.Pointer[LoggerImpl]
pauseMu sync.RWMutex
pauseChan chan struct{}
}
// GetLogger returns a logger with the given name. If the logger doesn't exist, a new empty one will be created.
func (m *LoggerManager) GetLogger(name string) *LoggerImpl {
if name == DEFAULT {
if logger := m.defaultLogger.Load(); logger != nil {
return logger
}
}
m.mu.Lock()
defer m.mu.Unlock()
logger := m.loggers[name]
if logger == nil {
logger = NewLoggerWithWriters(m.ctx, name)
m.loggers[name] = logger
if name == DEFAULT {
m.defaultLogger.Store(logger)
}
}
return logger
}
// PauseAll pauses all event writers
func (m *LoggerManager) PauseAll() {
m.pauseMu.Lock()
m.pauseChan = make(chan struct{})
m.pauseMu.Unlock()
}
// ResumeAll resumes all event writers
func (m *LoggerManager) ResumeAll() {
m.pauseMu.Lock()
close(m.pauseChan)
m.pauseChan = nil
m.pauseMu.Unlock()
}
// GetPauseChan returns a channel for writer pausing
func (m *LoggerManager) GetPauseChan() chan struct{} {
m.pauseMu.RLock()
defer m.pauseMu.RUnlock()
return m.pauseChan
}
// Close closes the logger manager, all loggers and writers will be closed, the messages are flushed.
func (m *LoggerManager) Close() {
m.mu.Lock()
defer m.mu.Unlock()
for _, logger := range m.loggers {
logger.Close()
}
m.loggers = map[string]*LoggerImpl{}
for _, writer := range m.writers {
eventWriterStopWait(writer)
}
m.writers = map[string]EventWriter{}
m.ctxCancel()
}
// DumpLoggers returns a map of all loggers and their event writers, for debugging and display purposes.
func (m *LoggerManager) DumpLoggers() map[string]any {
m.mu.Lock()
defer m.mu.Unlock()
dump := map[string]any{}
for name, logger := range m.loggers {
loggerDump := map[string]any{
"IsEnabled": logger.IsEnabled(),
"EventWriters": logger.DumpWriters(),
}
dump[name] = loggerDump
}
return dump
}
// NewSharedWriter creates a new shared event writer, it can be used by multiple loggers, and a shared writer won't be closed if a logger is closed.
func (m *LoggerManager) NewSharedWriter(writerName, writerType string, mode WriterMode) (writer EventWriter, err error) {
m.mu.Lock()
defer m.mu.Unlock()
if _, ok := m.writers[writerName]; ok {
return nil, fmt.Errorf("log event writer %q has been added before", writerName)
}
if writer, err = NewEventWriter(writerName, writerType, mode); err != nil {
return nil, err
}
m.writers[writerName] = writer
eventWriterStartGo(m.ctx, writer, true)
return writer, nil
}
func (m *LoggerManager) GetSharedWriter(writerName string) EventWriter {
m.mu.Lock()
defer m.mu.Unlock()
return m.writers[writerName]
}
var loggerManager = NewManager()
func GetManager() *LoggerManager {
return loggerManager
}
func NewManager() *LoggerManager {
m := &LoggerManager{writers: map[string]EventWriter{}, loggers: map[string]*LoggerImpl{}}
m.ctx, m.ctxCancel = newProcessTypedContext(context.Background(), "LoggerManager")
return m
}
|
