laconicd/copied.go

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