44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
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package importer
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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ethstate "github.com/ethereum/go-ethereum/core/state"
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ethtypes "github.com/ethereum/go-ethereum/core/types"
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ethparams "github.com/ethereum/go-ethereum/params"
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)
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// Some weird constants to avoid constant memory allocs for them.
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var (
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big8 = big.NewInt(8)
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big32 = big.NewInt(32)
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)
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// accumulateRewards credits the coinbase of the given block with the mining
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// reward. The total reward consists of the static block reward and rewards for
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// included uncles. The coinbase of each uncle block is also rewarded.
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func accumulateRewards(config *ethparams.ChainConfig, state *ethstate.StateDB, header *ethtypes.Header, uncles []*ethtypes.Header) {
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// select the correct block reward based on chain progression
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blockReward := ethash.FrontierBlockReward
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if config.IsByzantium(header.Number) {
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blockReward = ethash.ByzantiumBlockReward
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}
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// accumulate the rewards for the miner and any included uncles
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reward := new(big.Int).Set(blockReward)
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r := new(big.Int)
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for _, uncle := range uncles {
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r.Add(uncle.Number, big8)
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r.Sub(r, header.Number)
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r.Mul(r, blockReward)
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r.Div(r, big8)
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state.AddBalance(uncle.Coinbase, r)
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r.Div(blockReward, big32)
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reward.Add(reward, r)
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}
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state.AddBalance(header.Coinbase, reward)
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}
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