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65 lines
1.2 KiB
65 lines
1.2 KiB
package internal
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import (
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"sync"
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"github.com/v2ray/v2ray-core/app"
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"github.com/v2ray/v2ray-core/app/pubsub"
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)
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type TopicHandlerList struct {
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sync.RWMutex
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handlers []pubsub.TopicHandler
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}
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func NewTopicHandlerList(handlers ...pubsub.TopicHandler) *TopicHandlerList {
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return &TopicHandlerList{
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handlers: handlers,
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}
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}
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func (this *TopicHandlerList) Add(handler pubsub.TopicHandler) {
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this.Lock()
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this.handlers = append(this.handlers, handler)
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this.Unlock()
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}
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func (this *TopicHandlerList) Dispatch(message pubsub.PubsubMessage) {
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this.RLock()
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for _, handler := range this.handlers {
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go handler(message)
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}
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this.RUnlock()
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}
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type Pubsub struct {
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topics map[string]*TopicHandlerList
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sync.RWMutex
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}
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func New() *Pubsub {
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return &Pubsub{
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topics: make(map[string]*TopicHandlerList),
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}
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}
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func (this *Pubsub) Publish(context app.Context, topic string, message pubsub.PubsubMessage) {
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this.RLock()
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list, found := this.topics[topic]
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this.RUnlock()
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if found {
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list.Dispatch(message)
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}
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}
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func (this *Pubsub) Subscribe(context app.Context, topic string, handler pubsub.TopicHandler) {
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this.Lock()
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defer this.Unlock()
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if list, found := this.topics[topic]; found {
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list.Add(handler)
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} else {
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this.topics[topic] = NewTopicHandlerList(handler)
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}
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}
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