40 lines
1.3 KiB
Go
40 lines
1.3 KiB
Go
package builder
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import (
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"time"
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"github.com/dgraph-io/ristretto"
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"github.com/eko/gocache/v3/cache"
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"github.com/eko/gocache/v3/metrics"
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"github.com/eko/gocache/v3/store"
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"github.com/wormhole-foundation/wormhole-explorer/fly/config"
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"github.com/wormhole-foundation/wormhole-explorer/fly/deduplicator"
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"go.uber.org/zap"
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)
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func NewCache[T any](name string, numKeys, maxCost int64) (cache.CacheInterface[T], error) {
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c, err := ristretto.NewCache(&ristretto.Config{
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NumCounters: numKeys, // Num keys to track frequency of (1000).
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MaxCost: maxCost * (1 << 20), // Maximum cost of cache (10 MB).
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BufferItems: 64, // Number of keys per Get buffer.
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})
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if err != nil {
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return nil, err
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}
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store := store.NewRistretto(c)
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return cache.NewMetric[T](
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metrics.NewPrometheus(name),
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cache.New[T](store),
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), nil
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}
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func NewDeduplicator(name string, cfg config.Cache, logger *zap.Logger) (*deduplicator.Deduplicator, error) {
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// Creates a deduplicator to discard VAA messages that were processed previously
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deduplicatorCache, err := NewCache[bool](name, cfg.NumKeys, cfg.MaxCostsInMB)
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if err != nil {
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return nil, err
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}
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expiration := time.Duration(cfg.ExpirationInSeconds) * time.Second
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return deduplicator.New(deduplicatorCache, logger, deduplicator.WithExpiration(expiration)), nil
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}
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