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logger: support forking of outlets

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refs #10
This commit is contained in:
Christian Schwarz
2017-12-23 00:55:02 +01:00
parent 583a63a68f
commit 261d095108
3 changed files with 53 additions and 16 deletions
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20
logger/logger.go
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@ -17,13 +17,13 @@ const DefaultUserFieldCapacity = 5
type Logger struct {
fields Fields
outlets Outlets
outlets *Outlets
outletTimeout time.Duration
mtx *sync.Mutex
}
func NewLogger(outlets Outlets, outletTimeout time.Duration) *Logger {
func NewLogger(outlets *Outlets, outletTimeout time.Duration) *Logger {
return &Logger{
make(Fields, DefaultUserFieldCapacity),
outlets,
@ -89,6 +89,20 @@ func (l *Logger) log(level Level, msg string) {
}
func (l *Logger) WithOutlet(outlet Outlet, level Level) *Logger {
l.mtx.Lock()
defer l.mtx.Unlock()
newOutlets := l.outlets.DeepCopy()
newOutlets.Add(outlet, level)
child := &Logger{
fields: l.fields,
outlets: newOutlets,
outletTimeout: l.outletTimeout,
mtx: l.mtx,
}
return child
}
func (l *Logger) WithField(field string, val interface{}) *Logger {
l.mtx.Lock()
@ -101,7 +115,7 @@ func (l *Logger) WithField(field string, val interface{}) *Logger {
child := &Logger{
fields: make(Fields, len(l.fields)+1),
outlets: l.outlets, // cannot be changed after logger initialized
outlets: l.outlets,
outletTimeout: l.outletTimeout,
mtx: l.mtx,
}