converge/pkg/support/throttling/async_throttler.go

43 lines
860 B
Go

package throttling
import (
"context"
"time"
)
type AsyncThrottler[T any] struct {
throttler Throttler[T]
ctx context.Context
events chan *T
ticker *time.Ticker
}
func NewAsyncThrottler[T any](ctx context.Context, notifier func(t *T),
minDelay time.Duration,
pollInterval time.Duration) *AsyncThrottler[T] {
throttler := AsyncThrottler[T]{
throttler: NewThrottler[T](notifier, minDelay),
ctx: ctx,
events: make(chan *T),
ticker: time.NewTicker(pollInterval),
}
go func() {
defer throttler.ticker.Stop()
for {
select {
case <-ctx.Done():
return
case <-throttler.ticker.C:
throttler.throttler.Ping()
case event := <-throttler.events:
throttler.throttler.Notify(event)
}
}
}()
return &throttler
}
func (throttler *AsyncThrottler[T]) Notify(value *T) {
throttler.events <- value
}