Brother even blockchain tutorial Open-ethereum-pool mining pool Source Code Analysis Unlocker module

Brother even blockchain tutorial Open-ethereum-pool Ethereum mine Pool source Analysis Unlocker module
Open-ethereum-pool Ethereum Mine Pool-unlocker module

Unlocker module Configuration

Json
"Unlocker": {
????" Enabled ": false,
????" Poolfee ": 1.0,
????" Poolfeeaddress ":" ",
????" Donate ": True,
????" Depth ": 120,
????" Immaturedepth ": 20,
????" Keeptxfees ": false,
????" Interval ":" 10m ",
????" Daemon ":" http://127.0.0.1:8545 ",
????" Timeout ":" 10s "
},

Blockunlocker definition

Go
Type Blockunlocker struct {
???? Config unlockerconfig
???? Backend storage. Redisclient
???? RPC *rpc. Rpcclient
???? halt BOOL
???? Lastfail Error
}

Unlocker Flowchart Getcandidates Principle

Go
Func (r redisclient) getcandidates (maxheight Int64) ([] Blockdata, error) {
???? Zrangebyscore eth:blocks:candidates 0 maxheight withscores
???? Option: = Redis. Zrangebyscore{min: "0", Max:strconv. Formatint (MaxHeight, Ten)}
???? CMD: = R.client.zrangebyscorewithscores (R.formatkey ("blocks", "candidates"), option)
???? If Cmd. ERR ()! = nil {
???????? return nil, CMD. ERR ()
????}
???? return Convertcandidateresults (cmd), nil
}

Func convertcandidateresults (Raw redis. Zslicecmd) []Blockdata {
???? var result []*blockdata
???? for, V: = Range raw. Val () {
???????? "Nonce:powHash:mixDigest:timestamp:diff:totalShares"
???????? Block: = blockdata{}
???????? Block. Height = Int64 (V.score)
???????? Block. Roundheight = block. Height
???????? Fields: = Strings. Split (V.member. ( String), ":")
???????? Block. Nonce = Fields[0]
???????? Block. Powhash = fields[1]
???????? Block. Mixdigest = fields[2]
???????? Block. Timestamp, = StrConv. parseint (Fields[3], 10, 64)
???????? Block. Difficulty, = StrConv. parseint (Fields[4], 10, 64)
???????? Block. Totalshares, = StrConv. parseint (Fields[5], 10, 64)
???????? Block.candidatekey = V.member. (string)
???????? result = Append (result, &block)
????}
???? return result
}

Writeimmatureblock principle

Go
//immature is a minor
func (R redisclient) Writeimmatureblock (TX Redis. Multi, block *blockdata) {
???? Redis 2.8.x returns "ERR source and destination objects is the same"
???? If block. Height! = block. roundheight {
???????? RENAME eth:shares:candidates:round&roundheight:nonce eth:shares:candidates:round&blockheight:nonce
???????? Tx. Rename (R.formatround (block. Roundheight, block. Nonce), R.formatround (block. Height, block. Nonce))
????}
????
???? The Zrem command is used to remove one or more members from an ordered set, and non-existent members are ignored
???? Candidates as candidate
???? Zrem eth:blocks:candidates nonce:powHash:mixDigest:timestamp:diff:totalShares
???? Tx. Zrem (R.formatkey ("blocks", "candidates"), Block.candidatekey)
????
???? Zadd eth:blocks:immature block. Height UncleHeight:Orphan:Nonce:serializeHash:Timestamp:Difficulty:TotalShares:Reward
???? Tx. Zadd (R.formatkey ("blocks", "immature"), Redis. Z{score:float64 (block. Height), Member:block.key ()})
}

Func (b *blockdata) key () string {
???? Return join (B.uncleheight, B.orphan, B.nonce, B.serializehash (), B.timestamp, B.difficulty, B.totalshares, B.Reward)
}

Writeimmatureblock principle

Go
Func (R Redisclient) Writeimmatureblock (Block blockdata, roundrewards map[string]int64) error {
???? TX: = R.client.multi ()
???? Defer TX. Close ()

???? _, Err: = Tx. Exec (func () error {
???????? What is the purpose of writing a minor block?
???????? Supplemental Unlockpendingblocks () stage, all written to the minor block
???????? R.writeimmatureblock (TX, block)
???????? Total: = Int64 (0)
???????? Traverse Roundrewards
???????? For login, Amount: = Range Roundrewards {
???????????? Sum
???????????? Total + = Amount
???????????? The Hincrby command is used to add the specified increment value to the field value in the hash table
???????????? Hincrby Eth:miners:login Immature amount
???????????? Tx. Hincrby (R.formatkey ("miners", login), "immature", amount)
????????????
???????????? Hsetnx Eth:credits:immature:Height:Hash Login Amount
???????????? The HSETNX command is used to assign a value to a field that does not exist in the hash table
???????????? Tx. Hsetnx (R.formatkey ("credits", "immature", block. Height, block. Hash), login, StrConv. Formatint (amount, ten))
????????}
????????
???????? The Hincrby command is used to add the specified increment value to the field value in the hash table
???????? Hincrby eth:finances:immature Total
???????? Tx. Hincrby (R.formatkey ("finances"), "immature", total)
???????? return nil
????})
???? return err
}

Getimmatureblocks principle

Func (R *redisclient) getimmatureblocks (maxheight Int64) ([]*blockdata, error) {???? Option: = Redis. Zrangebyscore{min: "0", Max:strconv. Formatint (MaxHeight, Ten)}???? CMD: = R.client.zrangebyscorewithscores (R.formatkey ("blocks", "immature"), option)???? If Cmd. ERR ()! = Nil {???????? return nil, CMD. ERR ()????}???? return Convertblockresults (cmd), Nil}func convertblockresults (Rows ... *redis. Zslicecmd) []*blockdata {???? var result []*blockdata???? For _, Row: = Range rows {???????? For _, V: = Range row. Val () {???????????? "UncleHeight:orphan:nonce:blockHash:timestamp:diff:totalShares:rewardInWei"???????????? Block: = blockdata{}???????????? Block. Height = Int64 (V.score)???????????? Block. Roundheight = block. Height???????????? Fields: = Strings. Split (V.member. ( String), ":")???????????? Block. Uncleheight, _ = StrConv. parseint (Fields[0], ten,???????????? Block. Uncle = block. Uncleheight > 0???????????? Block. Orphan, _ = StrConv. Parsebool (Fields[1])???????????? Block. Nonce = fields[2]???????????? BlOck. Hash = fields[3]???????????? Block. Timestamp, _ = StrConv. parseint (Fields[4], ten,???????????? Block. Difficulty, _ = StrConv. parseint (Fields[5], ten,???????????? Block. Totalshares, _ = StrConv. parseint (Fields[6], ten,???????????? Block. rewardstring = fields[7]???????????? Block. Immaturereward = fields[7]???????????? Block.immaturekey = V.member. (string)???????????? result = Append (result, &block)????????}????}???? Return result}## Writeorphan principle func (R *redisclient) Writeorphan (block *blockdata) error {???? Creditkey: = R.formatkey ("Credits", "immature", block. Roundheight, block. Hash)???? TX, Err: = R.client.watch (creditkey)???? Must decrement immatures using existing log entry???? Immaturecredits: = Tx. Hgetallmap (Creditkey)???? If err! = Nil {???????? return err????}???? Defer TX. Close ()???? _, Err = Tx. Exec (func () error {???????? R.writematuredblock (TX, block)???????? Decrement immature balances???????? Totalimmature: = Int64 (0)???????? For login, amountstring: = Range immaturecredIts. Val () {???????????? Amount, _: = StrConv. parseint (amountstring, ten)???????????? Totalimmature + = Amount???????????? Tx. Hincrby (R.formatkey ("miners", login), "immature", (Amount *-1))????????}???????? Tx. Del (Creditkey)???????? Tx. Hincrby (R.formatkey ("finances"), "immature", (totalimmature *-1))???????? return nil????})???? Return Err}func (R *redisclient) Writematuredblock (TX *redis. Multi, block *blockdata) {Tx. Del (R.formatround (block. Roundheight, block. Nonce)) Tx. Zrem (R.formatkey ("blocks", "immature"), Block.immaturekey) Tx. Zadd (R.formatkey ("blocks", "matured"), Redis. Z{score:float64 (block. Height), Member:block.key ()})}

Brother chain Tutorial Open-ethereum-pool Mining Pool Source Code Analysis unlocker module