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Export CalcBlockSubsidy function.

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This commit is contained in:
Dave Collins 2014-02-25 00:31:58 -06:00
parent 1c052a01d8
commit a56dfc7ff4
1 changed files with 8 additions and 7 deletions
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15
validate.go
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@ -152,19 +152,20 @@ func isBIP0030Node(node *blockNode) bool {
return false return false
} }
// calcBlockSubsidy returns the subsidy amount a block at the provided height // CalcBlockSubsidy returns the subsidy amount a block at the provided height
// should have. This is mainly used for determining how much the coinbase for // should have. This is mainly used for determining how much the coinbase for
// newly generated blocks awards as well as validating the coinbase for blocks // newly generated blocks awards as well as validating the coinbase for blocks
// has the expected value. // has the expected value.
// //
// The subsidy is halved every SubsidyHalvingInterval blocks. Mathematically // The subsidy is halved every SubsidyHalvingInterval blocks. Mathematically
// this is: baseSubsidy / 2^(height/SubsidyHalvingInterval) // this is: baseSubsidy / 2^(height/subsidyHalvingInterval)
// //
// At the target block generation rate this is approximately every 4 // At the target block generation rate for the main network, this is
// years. // approximately every 4 years.
func (b *BlockChain) calcBlockSubsidy(height int64) int64 { func CalcBlockSubsidy(height int64, btcnet btcwire.BitcoinNet) int64 {
// Equivalent to: baseSubsidy / 2^(height/subsidyHalvingInterval) // Equivalent to: baseSubsidy / 2^(height/subsidyHalvingInterval)
return baseSubsidy >> uint(height/b.chainParams().SubsidyHalvingInterval) return baseSubsidy >>
uint(height/ChainParams(btcnet).SubsidyHalvingInterval)
} }
// CheckTransactionSanity performs some preliminary checks on a transaction to // CheckTransactionSanity performs some preliminary checks on a transaction to
@ -830,7 +831,7 @@ func (b *BlockChain) checkConnectBlock(node *blockNode, block *btcutil.Block) er
for _, txOut := range transactions[0].MsgTx().TxOut { for _, txOut := range transactions[0].MsgTx().TxOut {
totalSatoshiOut += txOut.Value totalSatoshiOut += txOut.Value
} }
expectedSatoshiOut := b.calcBlockSubsidy(node.height) + totalFees expectedSatoshiOut := CalcBlockSubsidy(node.height, b.btcnet) + totalFees
if totalSatoshiOut > expectedSatoshiOut { if totalSatoshiOut > expectedSatoshiOut {
str := fmt.Sprintf("coinbase transaction for block pays %v "+ str := fmt.Sprintf("coinbase transaction for block pays %v "+
"which is more than expected value of %v", "which is more than expected value of %v",