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28 lines
616 B
Go
28 lines
616 B
Go
package pubsub
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import (
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"fmt"
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pubsub "github.com/libp2p/go-libp2p-pubsub"
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)
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// getOrCreateTopic gets an existing topic or creates a new one
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func (m *Manager) getOrCreateTopic(topicName string) (*pubsub.Topic, error) {
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m.mu.Lock()
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defer m.mu.Unlock()
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// Return existing topic if available
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if topic, exists := m.topics[topicName]; exists {
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return topic, nil
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}
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// Join the topic - LibP2P allows multiple clients to join the same topic
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topic, err := m.pubsub.Join(topicName)
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if err != nil {
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return nil, fmt.Errorf("failed to join topic: %w", err)
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}
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m.topics[topicName] = topic
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return topic, nil
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}
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