781e300d33
- Add fsnotify dependency for file watching - Create daemon_debouncer.go: batch rapid events (500ms window) - Create daemon_watcher.go: monitor JSONL and git refs changes - Create daemon_event_loop.go: event-driven sync loop - Add mutation channel to RPC server (create/update/close events) - Add BEADS_DAEMON_MODE env var (poll/events, default: poll) Phase 1 implementation: opt-in via BEADS_DAEMON_MODE=events Target: <500ms latency (vs 5000ms), ~60% CPU reduction Related: bd-49 (epic), bd-50, bd-51, bd-53, bd-54, bd-55, bd-56 Amp-Thread-ID: https://ampcode.com/threads/T-35a3d0d7-4e19-421d-8392-63755035036e Co-authored-by: Amp <amp@ampcode.com>
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package main
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import (
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"sync"
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"time"
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)
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// Debouncer batches rapid events into a single action after a quiet period.
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// Thread-safe for concurrent triggers.
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type Debouncer struct {
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mu sync.Mutex
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timer *time.Timer
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duration time.Duration
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action func()
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}
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// NewDebouncer creates a new debouncer with the given duration and action.
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// The action will be called once after the duration has passed since the last trigger.
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func NewDebouncer(duration time.Duration, action func()) *Debouncer {
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return &Debouncer{
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duration: duration,
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action: action,
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}
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}
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// Trigger schedules the action to run after the debounce duration.
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// If called multiple times, the timer is reset each time, ensuring
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// the action only fires once after the last trigger.
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func (d *Debouncer) Trigger() {
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d.mu.Lock()
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defer d.mu.Unlock()
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if d.timer != nil {
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d.timer.Stop()
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}
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d.timer = time.AfterFunc(d.duration, func() {
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d.action()
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d.mu.Lock()
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d.timer = nil
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d.mu.Unlock()
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})
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}
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// Cancel stops any pending debounced action.
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// Safe to call even if no action is pending.
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func (d *Debouncer) Cancel() {
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d.mu.Lock()
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defer d.mu.Unlock()
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if d.timer != nil {
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d.timer.Stop()
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d.timer = nil
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}
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}
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