Documentation
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Index ¶
- func GenerateChain(config *params.ChainConfig, parent *types.Block, ...) ([]*types.Block, []types.Receipts)
- type BlockGen
- func (b *BlockGen) AddTx(tx *types.Transaction)
- func (b *BlockGen) AddTxWithChain(bc core.BlockChain, tx *types.Transaction)
- func (b *BlockGen) AddUncheckedReceipt(receipt *types.Receipt)
- func (b *BlockGen) AddUncle(h *block.Header)
- func (b *BlockGen) Number() *big.Int
- func (b *BlockGen) PrevBlock(index int) *types.Block
- func (b *BlockGen) SetCoinbase(addr common.Address)
- func (b *BlockGen) SetExtra(data []byte)
- func (b *BlockGen) SetShardID(shardID uint32)
- func (b *BlockGen) TxNonce(addr common.Address) uint64
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func GenerateChain ¶
func GenerateChain( config *params.ChainConfig, parent *types.Block, engine consensus_engine.Engine, db ethdb.Database, n int, gen func(int, *BlockGen), ) ([]*types.Block, []types.Receipts)
GenerateChain creates a chain of n blocks. The first block's parent will be the provided parent. db is used to store intermediate states and should contain the parent's state trie.
The generator function is called with a new block generator for every block. Any transactions and uncles added to the generator become part of the block. If gen is nil, the blocks will be empty and their coinbase will be the zero address.
Blocks created by GenerateChain do not contain valid proof of work values. Inserting them into BlockChain requires use of FakePow or a similar non-validating proof of work implementation.
Types ¶
type BlockGen ¶
type BlockGen struct {
// contains filtered or unexported fields
}
BlockGen creates blocks for testing. See GenerateChain for a detailed explanation.
func (*BlockGen) AddTx ¶
func (b *BlockGen) AddTx(tx *types.Transaction)
AddTx adds a transaction to the generated block. If no coinbase has been set, the block's coinbase is set to the zero address.
AddTx panics if the transaction cannot be executed. In addition to the protocol-imposed limitations (gas limit, etc.), there are some further limitations on the content of transactions that can be added. Notably, contract code relying on the BLOCKHASH instruction will panic during execution.
func (*BlockGen) AddTxWithChain ¶
func (b *BlockGen) AddTxWithChain(bc core.BlockChain, tx *types.Transaction)
AddTxWithChain adds a transaction to the generated block. If no coinbase has been set, the block's coinbase is set to the zero address.
AddTxWithChain panics if the transaction cannot be executed. In addition to the protocol-imposed limitations (gas limit, etc.), there are some further limitations on the content of transactions that can be added. If contract code relies on the BLOCKHASH instruction, the block in chain will be returned.
func (*BlockGen) AddUncheckedReceipt ¶
AddUncheckedReceipt forcefully adds a receipts to the block without a backing transaction.
AddUncheckedReceipt will cause consensus failures when used during real chain processing. This is best used in conjunction with raw block insertion.
func (*BlockGen) PrevBlock ¶
PrevBlock returns a previously generated block by number. It panics if num is greater or equal to the number of the block being generated. For index -1, PrevBlock returns the parent block given to GenerateChain.
func (*BlockGen) SetCoinbase ¶
SetCoinbase sets the coinbase of the generated block. It can be called at most once.
func (*BlockGen) SetShardID ¶
SetShardID sets the shardID field of the generated block.
Source Files