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collections.go
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collections.go
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// (c) 2019 Dapper Labs - ALL RIGHTS RESERVED
package mempool
import (
"github.com/onflow/flow-go/model/flow"
)
// Collections represents a concurrency-safe memory pool for collections.
type Collections interface {
// Has checks whether the collection with the given hash is currently in
// the memory pool.
Has(collID flow.Identifier) bool
// Add will add the given collection to the memory pool. It will return
// false if it was already in the mempool.
Add(coll *flow.Collection) bool
// Remove will remove the given collection from the memory pool; it will
// return true if the collection was known and removed.
Remove(collID flow.Identifier) bool
// ByID retrieve the collection with the given ID from the memory pool.
// It will return false if it was not found in the mempool.
ByID(collID flow.Identifier) (*flow.Collection, bool)
// Size will return the current size of the memory pool.
Size() uint
// All will retrieve all collections that are currently in the memory pool
// as a slice.
All() []*flow.Collection
}