mirror of
https://github.com/v2fly/v2ray-core.git
synced 2025-11-03 19:29:22 +00:00
47 lines
663 B
Go
47 lines
663 B
Go
package event
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import "sync"
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type Event uint16
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type Handler func(data interface{}) error
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type Registry interface {
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On(Event, Handler)
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}
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type Listener struct {
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sync.RWMutex
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events map[Event][]Handler
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}
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func (l *Listener) On(e Event, h Handler) {
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l.Lock()
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defer l.Unlock()
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if l.events == nil {
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l.events = make(map[Event][]Handler)
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}
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handlers := l.events[e]
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handlers = append(handlers, h)
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l.events[e] = handlers
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}
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func (l *Listener) Fire(e Event, data interface{}) error {
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l.RLock()
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defer l.RUnlock()
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if l.events == nil {
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return nil
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}
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for _, h := range l.events[e] {
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if err := h(data); err != nil {
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return err
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}
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}
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return nil
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}
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