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buffer.go
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buffer.go
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package module
import (
"github.com/onflow/flow-go/model/cluster"
"github.com/onflow/flow-go/model/flow"
)
// PendingBlockBuffer defines an interface for a cache of pending blocks that
// cannot yet be processed because they do not connect to the rest of the chain
// state. They are indexed by parent ID to enable processing all of a parent's
// children once the parent is received.
// Safe for concurrent use.
type PendingBlockBuffer interface {
Add(originID flow.Identifier, block *flow.Block) bool
ByID(blockID flow.Identifier) (flow.Slashable[flow.Block], bool)
ByParentID(parentID flow.Identifier) ([]flow.Slashable[flow.Block], bool)
DropForParent(parentID flow.Identifier)
// PruneByView prunes any pending blocks with views less or equal to the given view.
PruneByView(view uint64)
Size() uint
}
// PendingClusterBlockBuffer is the same thing as PendingBlockBuffer, but for
// collection node cluster consensus.
// Safe for concurrent use.
type PendingClusterBlockBuffer interface {
Add(originID flow.Identifier, block *cluster.Block) bool
ByID(blockID flow.Identifier) (flow.Slashable[cluster.Block], bool)
ByParentID(parentID flow.Identifier) ([]flow.Slashable[cluster.Block], bool)
DropForParent(parentID flow.Identifier)
// PruneByView prunes any pending cluster blocks with views less or equal to the given view.
PruneByView(view uint64)
Size() uint
}