From a56dfc7ff4395a4d4e795c9aa6726ad595d06b9d Mon Sep 17 00:00:00 2001 From: Dave Collins Date: Tue, 25 Feb 2014 00:31:58 -0600 Subject: [PATCH] Export CalcBlockSubsidy function. --- validate.go | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/validate.go b/validate.go index 3c4ce604..9ff74481 100644 --- a/validate.go +++ b/validate.go @@ -152,19 +152,20 @@ func isBIP0030Node(node *blockNode) bool { 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 // newly generated blocks awards as well as validating the coinbase for blocks // has the expected value. // // 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 -// years. -func (b *BlockChain) calcBlockSubsidy(height int64) int64 { +// At the target block generation rate for the main network, this is +// approximately every 4 years. +func CalcBlockSubsidy(height int64, btcnet btcwire.BitcoinNet) int64 { // 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 @@ -830,7 +831,7 @@ func (b *BlockChain) checkConnectBlock(node *blockNode, block *btcutil.Block) er for _, txOut := range transactions[0].MsgTx().TxOut { totalSatoshiOut += txOut.Value } - expectedSatoshiOut := b.calcBlockSubsidy(node.height) + totalFees + expectedSatoshiOut := CalcBlockSubsidy(node.height, b.btcnet) + totalFees if totalSatoshiOut > expectedSatoshiOut { str := fmt.Sprintf("coinbase transaction for block pays %v "+ "which is more than expected value of %v",