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listeners.go
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listeners.go
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package gumble // import "github.com/5pm-HDH/gumble/gumble"
type eventItem struct {
parent *Listeners
prev, next *eventItem
listener EventListener
}
func (e *eventItem) Detach() {
if e.prev == nil {
e.parent.head = e.next
} else {
e.prev.next = e.next
}
if e.next == nil {
e.parent.tail = e.prev
} else {
e.next.prev = e.prev
}
}
// Listeners is a list of event listeners. Each attached listener is called in
// sequence when a Client event is triggered.
type Listeners struct {
head, tail *eventItem
}
// Attach adds a new event listener to the end of the current list of listeners.
func (e *Listeners) Attach(listener EventListener) Detacher {
item := &eventItem{
parent: e,
prev: e.tail,
listener: listener,
}
if e.head == nil {
e.head = item
}
if e.tail != nil {
e.tail.next = item
}
e.tail = item
return item
}
func (e *Listeners) onConnect(event *ConnectEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnConnect(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onDisconnect(event *DisconnectEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnDisconnect(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onTextMessage(event *TextMessageEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnTextMessage(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onUserChange(event *UserChangeEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnUserChange(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onChannelChange(event *ChannelChangeEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnChannelChange(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onPermissionDenied(event *PermissionDeniedEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnPermissionDenied(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onUserList(event *UserListEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnUserList(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onACL(event *ACLEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnACL(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onBanList(event *BanListEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnBanList(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onContextActionChange(event *ContextActionChangeEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnContextActionChange(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}
func (e *Listeners) onServerConfig(event *ServerConfigEvent) {
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
for item := e.head; item != nil; item = item.next {
event.Client.volatileLock.Unlock()
item.listener.OnServerConfig(event)
event.Client.volatileLock.Lock()
event.Client.volatileWg.Wait()
}
event.Client.volatileLock.Unlock()
}