From 445feaeef58bd89a113743dccf6fd5df55cde6fa Mon Sep 17 00:00:00 2001 From: Jeffrey Wilcke Date: Thu, 20 Oct 2016 13:36:29 +0200 Subject: core, core/state, trie: EIP158, reprice & skip empty account write 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 --- core/database_util.go | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'core/database_util.go') diff --git a/core/database_util.go b/core/database_util.go index 0fb593554..84669de35 100644 --- a/core/database_util.go +++ b/core/database_util.go @@ -20,6 +20,7 @@ import ( "bytes" "encoding/binary" "encoding/json" + "errors" "fmt" "math/big" @@ -28,6 +29,7 @@ import ( "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger/glog" + "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/rlp" ) @@ -59,6 +61,8 @@ var ( oldBlockNumPrefix = []byte("block-num-") oldBlockReceiptsPrefix = []byte("receipts-block-") oldBlockHashPrefix = []byte("block-hash-") // [deprecated by the header/block split, remove eventually] + + ChainConfigNotFoundErr = errors.New("ChainConfig not found") // general config not found error ) // encodeBlockNumber encodes a block number as big endian uint64 @@ -600,7 +604,7 @@ func WriteBlockChainVersion(db ethdb.Database, vsn int) { } // WriteChainConfig writes the chain config settings to the database. -func WriteChainConfig(db ethdb.Database, hash common.Hash, cfg *ChainConfig) error { +func WriteChainConfig(db ethdb.Database, hash common.Hash, cfg *params.ChainConfig) error { // short circuit and ignore if nil config. GetChainConfig // will return a default. if cfg == nil { @@ -616,13 +620,13 @@ func WriteChainConfig(db ethdb.Database, hash common.Hash, cfg *ChainConfig) err } // GetChainConfig will fetch the network settings based on the given hash. -func GetChainConfig(db ethdb.Database, hash common.Hash) (*ChainConfig, error) { +func GetChainConfig(db ethdb.Database, hash common.Hash) (*params.ChainConfig, error) { jsonChainConfig, _ := db.Get(append(configPrefix, hash[:]...)) if len(jsonChainConfig) == 0 { return nil, ChainConfigNotFoundErr } - var config ChainConfig + var config params.ChainConfig if err := json.Unmarshal(jsonChainConfig, &config); err != nil { return nil, err } -- cgit FreeBSD GNOME current development ports (https://github.com/freebsd/freebsd-ports-gnome)
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