Documentation ¶
Index ¶
- type BlocksByCollection
- type CompleteCollection
- type ExecutableBlock
- func (b *ExecutableBlock) Checksum() flow.Identifier
- func (b *ExecutableBlock) Collections() []*CompleteCollection
- func (b *ExecutableBlock) HasAllTransactions() bool
- func (b *ExecutableBlock) HasStartState() bool
- func (b *ExecutableBlock) Height() uint64
- func (b *ExecutableBlock) ID() flow.Identifier
- func (b *ExecutableBlock) IsComplete() bool
- func (b *ExecutableBlock) ParentID() flow.Identifier
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type BlocksByCollection ¶
type BlocksByCollection struct { CollectionID flow.Identifier // a reversed map to look up which block contains this collection. key is the collection id ExecutableBlocks map[flow.Identifier]*ExecutableBlock }
BlocksByCollection represents a collection that the execution node. has not received its transactions yet. it also holds references to the blocks that contains this collection and are waiting to be executed.
func (*BlocksByCollection) Checksum ¶
func (b *BlocksByCollection) Checksum() flow.Identifier
func (*BlocksByCollection) ID ¶
func (b *BlocksByCollection) ID() flow.Identifier
type CompleteCollection ¶
type CompleteCollection struct { Guarantee *flow.CollectionGuarantee Transactions []*flow.TransactionBody }
A complete collection contains the guarantee and the transactions. the guarantee is the hash of all the transactions. The execution node receives the guarantee from the block, and queries the transactions by the guarantee from the collection node. when receiving a collection from collection node, the execution node will update the Transactions field of a CompleteCollection and make it complete.
func (CompleteCollection) Collection ¶
func (c CompleteCollection) Collection() flow.Collection
func (CompleteCollection) IsCompleted ¶
func (c CompleteCollection) IsCompleted() bool
type ExecutableBlock ¶
type ExecutableBlock struct { Block *flow.Block CompleteCollections map[flow.Identifier]*CompleteCollection // key is the collection ID. StartState *flow.StateCommitment Executing bool // flag used to indicate if block is being executed, to avoid re-execution // contains filtered or unexported fields }
ExecutableBlock represents a block that can be executed by the VM
It assumes that the Block attached is immutable, so take care in not modifying or changing the inner *flow.Block, otherwise the struct will be in an inconsistent state. It requires the Block is immutable because the it lazy lodas the Block.ID() into the private id field, on the first call to ExecutableBlock.ID() All future calls to ID will not call Block.ID(), therefore it Block changes, the id will not match the Block.
func (*ExecutableBlock) Checksum ¶
func (b *ExecutableBlock) Checksum() flow.Identifier
func (*ExecutableBlock) Collections ¶
func (b *ExecutableBlock) Collections() []*CompleteCollection
func (*ExecutableBlock) HasAllTransactions ¶
func (b *ExecutableBlock) HasAllTransactions() bool
HasAllTransactions returns whether all the transactions for all collections in the block have been received.
func (*ExecutableBlock) HasStartState ¶
func (b *ExecutableBlock) HasStartState() bool
HasStartState returns whether the block has StartState, which indicates whether its parent has been executed.
func (*ExecutableBlock) Height ¶
func (b *ExecutableBlock) Height() uint64
func (*ExecutableBlock) ID ¶
func (b *ExecutableBlock) ID() flow.Identifier
ID lazy loads the Block.ID() into the private id field on the first call, and returns the id field in all future calls
func (*ExecutableBlock) IsComplete ¶
func (b *ExecutableBlock) IsComplete() bool
IsComplete returns whether all the data needed to executed the block are ready.
func (*ExecutableBlock) ParentID ¶
func (b *ExecutableBlock) ParentID() flow.Identifier