cuckoo

package
v0.0.2-alpha Latest Latest
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 Go to latest Published: Jan 22, 2019 License: GPL-3.0, GPL-3.0 Imports: 28 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	FrontierBlockReward  *big.Int = big.NewInt(8e+18) // Block reward in wei for successfully mining a block
	ByzantiumBlockReward *big.Int = big.NewInt(8e+18) // Block reward in wei for successfully mining a block upward from Byzantium

)

Cuckoo proof-of-work protocol constants.

View Source 
var ErrInvalidDumpMagic = errors.New("invalid dump magic")

Functions

func CalcDifficulty 

func CalcDifficulty(config *params.ChainConfig, time uint64, parent *types.Header) *big.Int

CalcDifficulty is the difficulty adjustment algorithm. It returns the difficulty that a new block should have when created at time given the parent block's time and difficulty.

func CuckooFinalize 

func CuckooFinalize()

func CuckooFindSolutions 

func CuckooFindSolutions(hash []byte, nonce uint64) (status_code uint32, ret [][]uint32)

func CuckooInit 

func CuckooInit(threads uint32)

func CuckooInitialize 

func CuckooInitialize(threads uint32, nInstances uint32)

func CuckooSolve 

func CuckooSolve(hash *byte, hash_len int, nonce uint64, result *uint32, result_len *uint32, diff *byte, result_hash *byte) byte

func CuckooVerify 

func CuckooVerify(hash *byte, hash_len int, nonce uint64, result *uint32, diff *byte, result_hash *byte) byte

func CuckooVerifyHeader 

func CuckooVerifyHeader(hash []byte, nonce uint64, sol *types.BlockSolution) (ok bool, sha3hash common.Hash)

func CuckooVerifyHeaderNonceAndSolutions 

func CuckooVerifyHeaderNonceAndSolutions(hash []byte, nonce uint64, result *uint32) int

func DeleteTester 

func DeleteTester()

func SeedHash 

func SeedHash(block uint64) []byte

func Sha3Solution 

func Sha3Solution(sol *types.BlockSolution) []byte

Types

type API 

type API struct {
	// contains filtered or unexported fields
}

API exposes cuckoo related methods for the RPC interface.

func (*API) GetHashrate 

func (api *API) GetHashrate() uint64

GetHashrate returns the current hashrate for local CPU miner and remote miner.

func (*API) GetWork 

func (api *API) GetWork() ([3]string, error)

GetWork returns a work package for external miner.

The work package consists of 3 strings: 

result[0] - 32 bytes hex encoded current block header pow-hash
result[1] - 32 bytes hex encoded seed hash used for DAG
result[2] - 32 bytes hex encoded boundary condition ("target"), 2^256/difficulty

func (*API) SubmitHashRate 

func (api *API) SubmitHashRate(rate hexutil.Uint64, id common.Hash) bool

SubmitHashrate can be used for remote miners to submit their hash rate. This enables the node to report the combined hash rate of all miners which submit work through this node.

It accepts the miner hash rate and an identifier which must be unique between nodes.

func (*API) SubmitWork 

func (api *API) SubmitWork(nonce types.BlockNonce, hash common.Hash, solution string) bool

SubmitWork can be used by external miner to submit their POW solution. It returns an indication if the work was accepted. Note either an invalid solution, a stale work a non-existent work will return false.

type Block 

type Block interface {
	Difficulty() *big.Int
	//	HashNoNonce() common.Hash
	Nonce() uint64
	MixDigest() common.Hash
	NumberU64() uint64
}

type Config 

type Config struct {
	CacheDir     string
	CachesInMem  int
	CachesOnDisk int

	DatasetDir     string
	DatasetsInMem  int
	DatasetsOnDisk int

	PowMode Mode
}

compatiable with cuckoo interface

type Cuckoo 

type Cuckoo struct {
	// contains filtered or unexported fields
}

func New 

func New(config Config) *Cuckoo

func NewFakeDelayer added in v1.0.0 

func NewFakeDelayer(seconds time.Duration) *Cuckoo

func NewFakeFailer added in v1.0.0 

func NewFakeFailer(number uint64) *Cuckoo

func NewFullFaker 

func NewFullFaker() *Cuckoo

func NewShared 

func NewShared() *Cuckoo

NewShared() func in tests/block_tests_util.go

func NewTester 

func NewTester() *Cuckoo

func (*Cuckoo) APIs 

func (cuckoo *Cuckoo) APIs(chain consensus.ChainReader) []rpc.API

func (*Cuckoo) Author 

func (cuckoo *Cuckoo) Author(header *types.Header) (common.Address, error)

Author implements consensus.Engine, returning the header's coinbase as the proof-of-work verified author of the block.

func (*Cuckoo) CalcDifficulty 

func (cuckoo *Cuckoo) CalcDifficulty(chain consensus.ChainReader, time uint64, parent *types.Header) *big.Int

CalcDifficulty is the difficulty adjustment algorithm. It returns the difficulty that a new block should have when created at time given the parent block's time and difficulty.

func (*Cuckoo) Close 

func (cuckoo *Cuckoo) Close() error

Close closes the exit channel to notify all backend threads exiting.

func (*Cuckoo) Finalize 

func (cuckoo *Cuckoo) Finalize(chain consensus.ChainReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error)

Finalize implements consensus.Engine, accumulating the block and uncle rewards, setting the final state and assembling the block.

func (*Cuckoo) Hashrate 

func (cuckoo *Cuckoo) Hashrate() float64

func (*Cuckoo) InitOnce 

func (cuckoo *Cuckoo) InitOnce()

func (*Cuckoo) Mine 

func (cuckoo *Cuckoo) Mine(block *types.Block, id int, seed uint64, abort chan struct{}, found chan *types.Block)

func (*Cuckoo) Prepare 

func (cuckoo *Cuckoo) Prepare(chain consensus.ChainReader, header *types.Header) error

Prepare implements consensus.Engine, initializing the difficulty field of a header to conform to the cuckoo protocol. The changes are done inline.

func (*Cuckoo) Seal 

func (cuckoo *Cuckoo) Seal(chain consensus.ChainReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error

func (*Cuckoo) SealHash 

func (cuckoo *Cuckoo) SealHash(header *types.Header) (hash common.Hash)

SealHash returns the hash of a block prior to it being sealed.

func (*Cuckoo) SetThreads 

func (cuckoo *Cuckoo) SetThreads(threads int)

func (*Cuckoo) Threads 

func (cuckoo *Cuckoo) Threads() int

func (*Cuckoo) Verify 

func (cuckoo *Cuckoo) Verify(block Block, hashNoNonce common.Hash, shareDiff *big.Int, solution *types.BlockSolution) (bool, bool, int64)

func (*Cuckoo) VerifyHeader 

func (cuckoo *Cuckoo) VerifyHeader(chain consensus.ChainReader, header *types.Header, seal bool) error

VerifyHeader checks whether a header conforms to the consensus rules of the stock Ethereum cuckoo engine.

func (*Cuckoo) VerifyHeaders 

func (cuckoo *Cuckoo) VerifyHeaders(chain consensus.ChainReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error)

VerifyHeaders is similar to VerifyHeader, but verifies a batch of headers concurrently. The method returns a quit channel to abort the operations and a results channel to retrieve the async verifications.

func (*Cuckoo) VerifySeal 

func (cuckoo *Cuckoo) VerifySeal(chain consensus.ChainReader, header *types.Header) error

func (*Cuckoo) VerifySolution 

func (cuckoo *Cuckoo) VerifySolution(hash []byte, nonce uint32, solution *types.BlockSolution, target big.Int) (bool, common.Hash)

func (*Cuckoo) VerifyUncles 

func (cuckoo *Cuckoo) VerifyUncles(chain consensus.ChainReader, block *types.Block) error

VerifyUncles verifies that the given block's uncles conform to the consensus rules of the stock Ethereum cuckoo engine.

type CuckooFake added in v1.0.0 

type CuckooFake struct {
}

func NewFaker 

func NewFaker() *CuckooFake

func (*CuckooFake) APIs added in v1.0.0 

func (cuckoo *CuckooFake) APIs(chain consensus.ChainReader) []rpc.API

func (*CuckooFake) Author added in v1.0.0 

func (cuckoo *CuckooFake) Author(header *types.Header) (common.Address, error)

func (*CuckooFake) CalcDifficulty added in v1.0.0 

func (cuckoo *CuckooFake) CalcDifficulty(chain consensus.ChainReader, time uint64, parent *types.Header) *big.Int

func (*CuckooFake) Close added in v1.0.0 

func (cuckoo *CuckooFake) Close() error

func (*CuckooFake) Finalize added in v1.0.0 

func (cuckoo *CuckooFake) Finalize(chain consensus.ChainReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error)

func (*CuckooFake) Prepare added in v1.0.0 

func (cuckoo *CuckooFake) Prepare(chain consensus.ChainReader, header *types.Header) error

func (*CuckooFake) Seal added in v1.0.0 

func (cuckoo *CuckooFake) Seal(chain consensus.ChainReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error

func (*CuckooFake) SealHash added in v1.0.0 

func (cuckoo *CuckooFake) SealHash(header *types.Header) (hash common.Hash)

func (*CuckooFake) VerifyHeader added in v1.0.0 

func (cuckoo *CuckooFake) VerifyHeader(chain consensus.ChainReader, header *types.Header, seal bool) error

func (*CuckooFake) VerifyHeaders added in v1.0.0 

func (cuckoo *CuckooFake) VerifyHeaders(chain consensus.ChainReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error)

func (*CuckooFake) VerifySeal added in v1.0.0 

func (cuckoo *CuckooFake) VerifySeal(chain consensus.ChainReader, header *types.Header) error

func (*CuckooFake) VerifyUncles added in v1.0.0 

func (cuckoo *CuckooFake) VerifyUncles(chain consensus.ChainReader, block *types.Block) error

type Mode 

type Mode uint
const (
	ModeNormal Mode = iota
	ModeShared
	ModeTest
	ModeFake
	ModeFullFake
)

Source Files

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