a49695e906
- Updated the interrupt controller to accept context IDs during initialization, improving traceability of interrupt signals. - Enhanced logging in the Assistant's Stream method to provide detailed trace information for stream lifecycle events. - Refactored context release logic to improve cleanup processes and added logging for context management. - Adjusted test cases to align with the new interrupt handling and logging structure, ensuring robust functionality and traceability.
62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
package pubsub
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import (
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"time"
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"github.com/yaoapp/kun/log"
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"github.com/yaoapp/yao/trace/types"
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)
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// Subscriber represents a subscription to trace updates
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type Subscriber struct {
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ID string
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Channel <-chan *types.TraceUpdate
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pubsub *PubSub
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}
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// Unsubscribe removes the subscription and closes the channel
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func (s *Subscriber) Unsubscribe() {
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s.pubsub.Unsubscribe(s.ID)
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}
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// SubscribeWithHistory creates a subscription and replays historical updates first
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// historicalUpdates: updates to replay before starting live stream
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// bufferSize: size of the subscription channel buffer
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func (ps *PubSub) SubscribeWithHistory(historicalUpdates []*types.TraceUpdate, bufferSize int) *Subscriber {
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// Create subscription
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ch, subID := ps.Subscribe(bufferSize)
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// Create subscriber
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sub := &Subscriber{
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ID: subID,
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Channel: ch,
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pubsub: ps,
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}
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// Replay historical updates in a goroutine
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// This allows the subscription to start immediately
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go func() {
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// Get writable channel for replay
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ps.mu.RLock()
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writeCh, exists := ps.subscribers[subID]
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ps.mu.RUnlock()
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if !exists {
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return
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}
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// Replay all historical updates (blocking send to ensure delivery)
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for i, update := range historicalUpdates {
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select {
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case writeCh <- update:
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// Sent successfully
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case <-time.After(5 * time.Second):
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// Timeout - subscriber is too slow or disconnected
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log.Trace("[PUBSUB] Subscriber %s timed out during replay at update %d/%d", subID, i, len(historicalUpdates))
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return
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}
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}
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}()
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return sub
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}
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