rpow

package

v1.0.1 Latest Latest Go to latest Published: Apr 8, 2019 License: GPL-3.0 Imports: 22 Imported by: 6

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/usechain/go-usechain

Links

Open Source Insights

Documentation ¶

Overview ¶

Package rpow implements the random-proof-of-work consensus engine.

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	CommonDifficulty = big.NewInt(1)
)

Genesis difficulty

View Source

var (
	// Block reward in hui for successfully mining a block upward from Sapphir
	SapphireBlockReward *big.Int = big.NewInt(0).Mul(big.NewInt(1e+18), big.NewInt(15))
)

random-proof-of-work protocol constants.

Functions ¶

func SeedHash ¶

func SeedHash(block uint64) []byte

SeedHash is the seed to use for generating a verification cache and the mining dataset.

Types ¶

type Config ¶

type Config struct {
	RpowMode Mode
}

Config are the configuration parameters of the rpow.

type Mode ¶

type Mode uint

Mode defines the type and amount of PoW verification a rpow engine makes.

const (
	ModeNormal Mode = iota
	ModeShared
	ModeTest
	ModeFake
	ModeFullFake
)

type Rpow ¶

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

Rpow is a consensus engine based on proot-of-work implementing the rpow algorithm.

func New ¶

func New(config Config) *Rpow

New creates a full sized rpow scheme.

func NewFakeDelayer ¶

func NewFakeDelayer(delay time.Duration) *Rpow

NewFakeDelayer creates a rpow consensus engine with a fake PoW scheme that accepts all blocks as valid, but delays verifications by some time, though they still have to conform to the Ethereum consensus rules.

func NewFakeFailer ¶

func NewFakeFailer(fail uint64) *Rpow

NewFakeFailer creates a rpow consensus engine with a fake PoW scheme that accepts all blocks as valid apart from the single one specified, though they still have to conform to the Ethereum consensus rules.

func NewFaker ¶

func NewFaker() *Rpow

NewFaker creates a rpow consensus engine with a fake PoW scheme that accepts all blocks' seal as valid, though they still have to conform to the Ethereum consensus rules.

func NewFakerUsechain ¶

func NewFakerUsechain(db ethdb.Database) *Rpow

NewFakerUsechain creates a rpow consensus engine with a fake PoW scheme that accepts all blocks' seal as valid, though they still have to conform to the Ethereum consensus rules.

func NewFullFaker ¶

func NewFullFaker() *Rpow

NewFullFaker creates a rpow consensus engine with a full fake scheme that accepts all blocks as valid, without checking any consensus rules whatsoever.

func NewFullFakerUse ¶

func NewFullFakerUse(db ethdb.Database) *Rpow

NewFullFakerUse creates a rpow consensus engine with a full fake scheme that accepts all blocks as valid, without checking any consensus rules whatsoever.

func NewTester ¶

func NewTester() *Rpow

NewTester creates a small sized rpow scheme useful only for testing purposes.

func NewTesterUse ¶

func NewTesterUse(db ethdb.Database) *Rpow

func (*Rpow) APIs ¶

func (rpow *Rpow) APIs(chain consensus.ChainReader) []rpc.API

APIs implements consensus.Engine, returning the user facing RPC APIs. Currently that is empty.

func (*Rpow) Author ¶

func (rpow *Rpow) Author(header *types.Header) (common.Address, error)

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

func (*Rpow) CalcDifficulty ¶

func (rpow *Rpow) CalcDifficulty(chain consensus.ChainReader, time uint64, header *types.Header, 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 (*Rpow) Finalize ¶

func (rpow *Rpow) 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 (*Rpow) Prepare ¶

func (rpow *Rpow) Prepare(chain consensus.ChainReader, header *types.Header, state *state.StateDB) error

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

func (*Rpow) Seal ¶

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

Seal implements consensus.Engine, attempting to find a nonce that satisfies the block's difficulty requirements.

func (*Rpow) SetThreads ¶

func (rpow *Rpow) SetThreads(threads int)

SetThreads updates the number of mining threads currently enabled. Calling this method does not start mining, only sets the thread count. If zero is specified, the miner will use all cores of the machine. Setting a thread count below zero is allowed and will cause the miner to idle, without any work being done.

func (*Rpow) Threads ¶

func (rpow *Rpow) Threads() int

Threads returns the number of mining threads currently enabled. This doesn't necessarily mean that mining is running!

func (*Rpow) VerifyHeader ¶

func (rpow *Rpow) VerifyHeader(chain consensus.ChainReader, header *types.Header, seal bool, state *state.StateDB) error

VerifyHeader checks whether a header conforms to the consensus rules of the stock Usechain rpow engine.

func (*Rpow) VerifyHeaders ¶

func (rpow *Rpow) VerifyHeaders(chain consensus.ChainReader, headers []*types.Header, seals []bool, state *state.StateDB) (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 (*Rpow) VerifySeal ¶

func (rpow *Rpow) VerifySeal(chain consensus.ChainReader, header *types.Header) error

VerifySeal implements consensus.Engine, checking whether the given block satisfies the Rpow difficulty requirements.

func (*Rpow) VerifyUncles ¶

func (rpow *Rpow) VerifyUncles(chain consensus.ChainReader, block *types.Block, state *state.StateDB) error

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

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL