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| author | Jeffrey Wilcke <jeffrey@ethereum.org> | 2017-02-02 05:36:51 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <jeffrey@ethereum.org> | 2017-05-18 15:05:58 +0800 |
| commit | 10a57fc3d45cbc59d6c8eeb0f7f2b93a71e8f4c9 (patch) | |
| tree | 170eb09bf51c802894d9335570d7319a2f86ef15 /core/chain_makers.go | |
| parent | a2f23ca9b181fa4409fdee3076316f3127038b9b (diff) | |
| download | dexon-10a57fc3d45cbc59d6c8eeb0f7f2b93a71e8f4c9.tar.gz dexon-10a57fc3d45cbc59d6c8eeb0f7f2b93a71e8f4c9.tar.zst dexon-10a57fc3d45cbc59d6c8eeb0f7f2b93a71e8f4c9.zip | |
consensus, core/*, params: metropolis preparation refactor
This commit is a preparation for the upcoming metropolis hardfork. It
prepares the state, core and vm packages such that integration with
metropolis becomes less of a hassle.
* Difficulty calculation requires header instead of individual
parameters
* statedb.StartRecord renamed to statedb.Prepare and added Finalise
method required by metropolis, which removes unwanted accounts from
the state (i.e. selfdestruct)
* State keeps record of destructed objects (in addition to dirty
objects)
* core/vm pre-compiles may now return errors
* core/vm pre-compiles gas check now take the full byte slice as argument
instead of just the size
* core/vm now keeps several hard-fork instruction tables instead of a
single instruction table and removes the need for hard-fork checks in
the instructions
* core/vm contains a empty restruction function which is added in
preparation of metropolis write-only mode operations
* Adds the bn256 curve
* Adds and sets the metropolis chain config block parameters (2^64-1)
Diffstat (limited to 'core/chain_makers.go')
| -rw-r--r-- | core/chain_makers.go | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/core/chain_makers.go b/core/chain_makers.go index f34279ba0..967744282 100644 --- a/core/chain_makers.go +++ b/core/chain_makers.go @@ -84,7 +84,7 @@ func (b *BlockGen) AddTx(tx *types.Transaction) { if b.gasPool == nil { b.SetCoinbase(common.Address{}) } - b.statedb.StartRecord(tx.Hash(), common.Hash{}, len(b.txs)) + b.statedb.Prepare(tx.Hash(), common.Hash{}, len(b.txs)) receipt, _, err := ApplyTransaction(b.config, nil, &b.header.Coinbase, b.gasPool, b.statedb, b.header, tx, b.header.GasUsed, vm.Config{}) if err != nil { panic(err) @@ -142,7 +142,7 @@ func (b *BlockGen) OffsetTime(seconds int64) { if b.header.Time.Cmp(b.parent.Header().Time) <= 0 { panic("block time out of range") } - b.header.Difficulty = ethash.CalcDifficulty(b.config, b.header.Time.Uint64(), b.parent.Time().Uint64(), b.parent.Number(), b.parent.Difficulty()) + b.header.Difficulty = ethash.CalcDifficulty(b.config, b.header.Time.Uint64(), b.parent.Header()) } // GenerateChain creates a chain of n blocks. The first block's @@ -209,15 +209,23 @@ func makeHeader(config *params.ChainConfig, parent *types.Block, state *state.St } else { time = new(big.Int).Add(parent.Time(), big.NewInt(10)) // block time is fixed at 10 seconds } + parentHeader := parent.Header() + // adjust the parent time + parentHeader.Time = new(big.Int).Sub(time, big.NewInt(10)) + return &types.Header{ Root: state.IntermediateRoot(config.IsEIP158(parent.Number())), ParentHash: parent.Hash(), Coinbase: parent.Coinbase(), - Difficulty: ethash.CalcDifficulty(config, time.Uint64(), new(big.Int).Sub(time, big.NewInt(10)).Uint64(), parent.Number(), parent.Difficulty()), - GasLimit: CalcGasLimit(parent), - GasUsed: new(big.Int), - Number: new(big.Int).Add(parent.Number(), common.Big1), - Time: time, + Difficulty: ethash.CalcDifficulty(config, time.Uint64(), &types.Header{ + Number: parent.Number(), + Time: new(big.Int).Sub(time, big.NewInt(10)), + Difficulty: parent.Difficulty(), + }), + GasLimit: CalcGasLimit(parent), + GasUsed: new(big.Int), + Number: new(big.Int).Add(parent.Number(), common.Big1), + Time: time, } } |