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params,consensus/ethash,miner: move parameter maxUncles from ethash to params,to avoid magic number

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This commit is contained in:
nkbai 2017-07-15 09:36:34 +08:00
parent 0ff35e170d
commit 604f0b3a20
3 changed files with 3 additions and 3 deletions
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3
consensus/ethash/consensus.go
View file

@ -37,7 +37,6 @@ import (
// Ethash proof-of-work protocol constants.
var (
blockReward *big.Int = big.NewInt(5e+18) // Block reward in wei for successfully mining a block
maxUncles = 2 // Maximum number of uncles allowed in a single block
)
// Various error messages to mark blocks invalid. These should be private to
@ -172,7 +171,7 @@ func (ethash *Ethash) VerifyUncles(chain consensus.ChainReader, block *types.Blo
return nil
}
// Verify that there are at most 2 uncles included in this block
if len(block.Uncles()) > maxUncles {
if len(block.Uncles()) > params.MaxUncles {
return errTooManyUncles
}
// Gather the set of past uncles and ancestors

2
miner/worker.go
View file

@ -452,7 +452,7 @@ func (self *worker) commitNewWork() {
badUncles []common.Hash
)
for hash, uncle := range self.possibleUncles {
if len(uncles) == 2 {
if len(uncles) == params.MaxUncles {
break
}
if err := self.commitUncle(work, uncle.Header()); err != nil {

1
params/protocol_params.go
View file

@ -60,6 +60,7 @@ const (
MemoryGas uint64 = 3 // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL.
TxDataNonZeroGas uint64 = 68 // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.
MaxUncles = 2 // Maximum number of uncles allowed in a single block
MaxCodeSize = 24576
)