本文整理匯總了Golang中github.com/NebulousLabs/Sia/modules.ConsensusSet.BlockAtHeight方法的典型用法代碼示例。如果您正苦於以下問題：Golang ConsensusSet.BlockAtHeight方法的具體用法？Golang ConsensusSet.BlockAtHeight怎麽用？Golang ConsensusSet.BlockAtHeight使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/NebulousLabs/Sia/modules.ConsensusSet的用法示例。
在下文中一共展示了ConsensusSet.BlockAtHeight方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: dbCalculateBlockFacts
func dbCalculateBlockFacts(tx *bolt.Tx, cs modules.ConsensusSet, block types.Block) blockFacts {
// get the parent block facts
var bf blockFacts
err := dbGetAndDecode(bucketBlockFacts, block.ParentID, &bf)(tx)
assertNil(err)
// get target
target, exists := cs.ChildTarget(block.ParentID)
if !exists {
panic(fmt.Sprint("ConsensusSet is missing target of known block", block.ParentID))
}
// update fields
bf.BlockID = block.ID()
bf.Height++
bf.Difficulty = target.Difficulty()
bf.Target = target
bf.Timestamp = block.Timestamp
bf.TotalCoins = types.CalculateNumSiacoins(bf.Height)
// calculate maturity timestamp
var maturityTimestamp types.Timestamp
if bf.Height > types.MaturityDelay {
oldBlock, exists := cs.BlockAtHeight(bf.Height - types.MaturityDelay)
if !exists {
panic(fmt.Sprint("ConsensusSet is missing block at height", bf.Height-types.MaturityDelay))
}
maturityTimestamp = oldBlock.Timestamp
}
bf.MaturityTimestamp = maturityTimestamp
// calculate hashrate by averaging last 'hashrateEstimationBlocks' blocks
var estimatedHashrate types.Currency
if bf.Height > hashrateEstimationBlocks {
var totalDifficulty = bf.Target
var oldestTimestamp types.Timestamp
for i := types.BlockHeight(1); i < hashrateEstimationBlocks; i++ {
b, exists := cs.BlockAtHeight(bf.Height - i)
if !exists {
panic(fmt.Sprint("ConsensusSet is missing block at height", bf.Height-hashrateEstimationBlocks))
}
target, exists := cs.ChildTarget(b.ParentID)
if !exists {
panic(fmt.Sprint("ConsensusSet is missing target of known block", b.ParentID))
}
totalDifficulty = totalDifficulty.AddDifficulties(target)
oldestTimestamp = b.Timestamp
}
secondsPassed := bf.Timestamp - oldestTimestamp
estimatedHashrate = totalDifficulty.Difficulty().Div64(uint64(secondsPassed))
}
bf.EstimatedHashrate = estimatedHashrate
bf.MinerPayoutCount += uint64(len(block.MinerPayouts))
bf.TransactionCount += uint64(len(block.Transactions))
for _, txn := range block.Transactions {
bf.SiacoinInputCount += uint64(len(txn.SiacoinInputs))
bf.SiacoinOutputCount += uint64(len(txn.SiacoinOutputs))
bf.FileContractCount += uint64(len(txn.FileContracts))
bf.FileContractRevisionCount += uint64(len(txn.FileContractRevisions))
bf.StorageProofCount += uint64(len(txn.StorageProofs))
bf.SiafundInputCount += uint64(len(txn.SiafundInputs))
bf.SiafundOutputCount += uint64(len(txn.SiafundOutputs))
bf.MinerFeeCount += uint64(len(txn.MinerFees))
bf.ArbitraryDataCount += uint64(len(txn.ArbitraryData))
bf.TransactionSignatureCount += uint64(len(txn.TransactionSignatures))
for _, fc := range txn.FileContracts {
bf.TotalContractCost = bf.TotalContractCost.Add(fc.Payout)
bf.TotalContractSize = bf.TotalContractSize.Add(types.NewCurrency64(fc.FileSize))
}
for _, fcr := range txn.FileContractRevisions {
bf.TotalContractSize = bf.TotalContractSize.Add(types.NewCurrency64(fcr.NewFileSize))
bf.TotalRevisionVolume = bf.TotalRevisionVolume.Add(types.NewCurrency64(fcr.NewFileSize))
}
}
return bf
}