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package topic
import "sync"
type LocalPartitionSubscribers struct {
Subscribers map[string]*LocalSubscriber
SubscribersLock sync.RWMutex
}
type LocalSubscriber struct {
stopCh chan struct{}
}
func NewLocalSubscriber() *LocalSubscriber {
return &LocalSubscriber{
stopCh: make(chan struct{}, 1),
}
}
func (p *LocalSubscriber) SignalShutdown() {
close(p.stopCh)
}
func NewLocalPartitionSubscribers() *LocalPartitionSubscribers {
return &LocalPartitionSubscribers{
Subscribers: make(map[string]*LocalSubscriber),
}
}
func (p *LocalPartitionSubscribers) AddSubscriber(clientName string, Subscriber *LocalSubscriber) {
p.SubscribersLock.Lock()
defer p.SubscribersLock.Unlock()
p.Subscribers[clientName] = Subscriber
}
func (p *LocalPartitionSubscribers) RemoveSubscriber(clientName string) {
p.SubscribersLock.Lock()
defer p.SubscribersLock.Unlock()
delete(p.Subscribers, clientName)
}
func (p *LocalPartitionSubscribers) SignalShutdown() {
p.SubscribersLock.RLock()
defer p.SubscribersLock.RUnlock()
for _, Subscriber := range p.Subscribers {
Subscriber.SignalShutdown()
}
}
func (p *LocalPartitionSubscribers) IsEmpty() bool {
p.SubscribersLock.RLock()
defer p.SubscribersLock.RUnlock()
return len(p.Subscribers) == 0
}
func (p *LocalPartitionSubscribers) Size() int {
p.SubscribersLock.RLock()
defer p.SubscribersLock.RUnlock()
return len(p.Subscribers)
}
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