v0.0.644 exerr.DeregisterListener

exerr/listener.go

@@ -2,8 +2,15 @@ package exerr
 
 import (
 	"sync"
+
+	"git.blackforestbytes.com/BlackForestBytes/goext/dataext"
+	"git.blackforestbytes.com/BlackForestBytes/goext/langext"
 )
 
+type ListenerKey struct {
+	_k string
+}
+
 type ListenerOpt struct {
 	NoLog bool
 }
@@ -11,20 +18,30 @@ type ListenerOpt struct {
 type Listener = func(method Method, v *ExErr, opt ListenerOpt)
 
 var listenerLock = sync.Mutex{}
-var listener = make([]Listener, 0)
+var listener = dataext.NewOrderedMap[ListenerKey, Listener]()
 
-func RegisterListener(l Listener) {
+func RegisterListener(l Listener) ListenerKey {
 	listenerLock.Lock()
 	defer listenerLock.Unlock()
 
-	listener = append(listener, l)
+	k := ListenerKey{_k: langext.MustHexUUID()}
+
+	listener.Add(k, l)
+	return k
+}
+
+func DeregisterListener(key ListenerKey) {
+	listenerLock.Lock()
+	defer listenerLock.Unlock()
+
+	listener.Remove(key)
 }
 
 func (ee *ExErr) CallListener(m Method, opt ListenerOpt) {
 	listenerLock.Lock()
 	defer listenerLock.Unlock()
 
-	for _, v := range listener {
+	for _, v := range listener.Iterate() {
 		v(m, ee, opt)
 	}
 }