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core, core/state, trie: EIP158, reprice & skip empty account write

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This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
This commit is contained in:
Jeffrey Wilcke
2016-10-20 13:36:29 +02:00
parent 932d973e36
commit 445feaeef5
74 changed files with 729 additions and 573 deletions
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6
core/genesis.go
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@ -43,7 +43,7 @@ func WriteGenesisBlock(chainDb ethdb.Database, reader io.Reader) (*types.Block,
}
var genesis struct {
ChainConfig *ChainConfig `json:"config"`
ChainConfig *params.ChainConfig `json:"config"`
Nonce string
Timestamp string
ParentHash string
@ -73,7 +73,7 @@ func WriteGenesisBlock(chainDb ethdb.Database, reader io.Reader) (*types.Block,
statedb.SetState(address, common.HexToHash(key), common.HexToHash(value))
}
}
root, stateBatch := statedb.CommitBatch()
root, stateBatch := statedb.CommitBatch(false)
difficulty := common.String2Big(genesis.Difficulty)
block := types.NewBlock(&types.Header{
@ -128,7 +128,7 @@ func GenesisBlockForTesting(db ethdb.Database, addr common.Address, balance *big
statedb, _ := state.New(common.Hash{}, db)
obj := statedb.GetOrNewStateObject(addr)
obj.SetBalance(balance)
root, err := statedb.Commit()
root, err := statedb.Commit(false)
if err != nil {
panic(fmt.Sprintf("cannot write state: %v", err))
}