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core: added basic chain configuration

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Added chain configuration options and write out during genesis database
insertion. If no "config" was found, nothing is written to the database.

Configurations are written on a per genesis base. This means
that any chain (which is identified by it's genesis hash) can have their
own chain settings.
This commit is contained in:
Jeffrey Wilcke
2016-03-01 23:32:43 +01:00
committed by Jeffrey Wilcke
parent 10d3466c93
commit f0cbebb19f
55 changed files with 732 additions and 431 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
cmd/ethtest/main.go
View File

@ -27,6 +27,7 @@ import (
"github.com/codegangsta/cli"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/tests"
)
@ -73,9 +74,9 @@ func runTestWithReader(test string, r io.Reader) error {
var err error
switch strings.ToLower(test) {
case "bk", "block", "blocktest", "blockchaintest", "blocktests", "blockchaintests":
err = tests.RunBlockTestWithReader(r, skipTests)
err = tests.RunBlockTestWithReader(params.MainNetHomesteadBlock, r, skipTests)
case "st", "state", "statetest", "statetests":
err = tests.RunStateTestWithReader(r, skipTests)
err = tests.RunStateTestWithReader(tests.RuleSet{params.MainNetHomesteadBlock}, r, skipTests)
case "tx", "transactiontest", "transactiontests":
err = tests.RunTransactionTestsWithReader(r, skipTests)
case "vm", "vmtest", "vmtests":

19
cmd/evm/main.go
View File

@ -33,7 +33,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/params"
)
var (
@ -106,9 +105,6 @@ func init() {
}
func run(ctx *cli.Context) {
vm.ForceJit = ctx.GlobalBool(ForceJitFlag.Name)
vm.EnableJit = !ctx.GlobalBool(DisableJitFlag.Name)
glog.SetToStderr(true)
glog.SetV(ctx.GlobalInt(VerbosityFlag.Name))
@ -118,8 +114,10 @@ func run(ctx *cli.Context) {
receiver := statedb.CreateAccount(common.StringToAddress("receiver"))
receiver.SetCode(common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name)))
vmenv := NewEnv(statedb, common.StringToAddress("evmuser"), common.Big(ctx.GlobalString(ValueFlag.Name)), &vm.Config{
Debug: ctx.GlobalBool(DebugFlag.Name),
vmenv := NewEnv(statedb, common.StringToAddress("evmuser"), common.Big(ctx.GlobalString(ValueFlag.Name)), vm.Config{
Debug: ctx.GlobalBool(DebugFlag.Name),
ForceJit: ctx.GlobalBool(ForceJitFlag.Name),
EnableJit: !ctx.GlobalBool(DisableJitFlag.Name),
})
tstart := time.Now()
@ -180,8 +178,7 @@ type VMEnv struct {
evm *vm.EVM
}
func NewEnv(state *state.StateDB, transactor common.Address, value *big.Int, cfg *vm.Config) *VMEnv {
params.HomesteadBlock = new(big.Int)
func NewEnv(state *state.StateDB, transactor common.Address, value *big.Int, cfg vm.Config) *VMEnv {
env := &VMEnv{
state: state,
transactor: &transactor,
@ -194,6 +191,12 @@ func NewEnv(state *state.StateDB, transactor common.Address, value *big.Int, cfg
return env
}
// ruleSet implements vm.RuleSet and will always default to the homestead rule set.
type ruleSet struct{}
func (ruleSet) IsHomestead(*big.Int) bool { return true }
func (self *VMEnv) RuleSet() vm.RuleSet { return ruleSet{} }
func (self *VMEnv) Vm() vm.Vm { return self.evm }
func (self *VMEnv) Db() vm.Database { return self.state }
func (self *VMEnv) MakeSnapshot() vm.Database { return self.state.Copy() }

1
cmd/geth/js_test.go
View File

@ -106,6 +106,7 @@ func testREPL(t *testing.T, config func(*eth.Config)) (string, *testjethre, *nod
core.WriteGenesisBlockForTesting(db, core.GenesisAccount{common.HexToAddress(testAddress), common.String2Big(testBalance)})
ethConf := &eth.Config{
ChainConfig: &core.ChainConfig{HomesteadBlock: new(big.Int)},
TestGenesisState: db,
AccountManager: accman,
DocRoot: "/",

42
cmd/geth/main.go
View File

@ -32,7 +32,9 @@ import (
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/internal/debug"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
@ -108,7 +110,6 @@ Runs quick benchmark on first GPU found.
The output of this command is supposed to be machine-readable.
`,
},
{
Name: "wallet",
Usage: "ethereum presale wallet",
@ -247,6 +248,16 @@ nodes.
},
},
},
{
Action: initGenesis,
Name: "init",
Usage: "bootstraps and initialises a new genesis block (JSON)",
Description: `
The init command initialises a new genesis block and definition for the network.
This is a destructive action and changes the network in which you will be
participating.
`,
},
{
Action: console,
Name: "console",
@ -255,7 +266,8 @@ nodes.
The Geth console is an interactive shell for the JavaScript runtime environment
which exposes a node admin interface as well as the Ðapp JavaScript API.
See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console
`},
`,
},
{
Action: attach,
Name: "attach",
@ -347,7 +359,6 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
go metrics.CollectProcessMetrics(3 * time.Second)
utils.SetupNetwork(ctx)
utils.SetupVM(ctx)
return nil
}
@ -417,6 +428,31 @@ func attach(ctx *cli.Context) {
}
}
// initGenesis will initialise the given JSON format genesis file and writes it as
// the zero'd block (i.e. genesis) or will fail hard if it can't succeed.
func initGenesis(ctx *cli.Context) {
genesisPath := ctx.Args().First()
if len(genesisPath) == 0 {
utils.Fatalf("must supply path to genesis JSON file")
}
chainDb, err := ethdb.NewLDBDatabase(filepath.Join(utils.MustMakeDataDir(ctx), "chaindata"), 0, 0)
if err != nil {
utils.Fatalf("could not open database: %v", err)
}
genesisFile, err := os.Open(genesisPath)
if err != nil {
utils.Fatalf("failed to read genesis file: %v", err)
}
block, err := core.WriteGenesisBlock(chainDb, genesisFile)
if err != nil {
utils.Fatalf("failed to write genesis block: %v", err)
}
glog.V(logger.Info).Infof("successfully wrote genesis block and/or chain rule set: %x", block.Hash())
}
// console starts a new geth node, attaching a JavaScript console to it at the
// same time.
func console(ctx *cli.Context) {

1
cmd/geth/usage.go
View File

@ -121,6 +121,7 @@ var AppHelpFlagGroups = []flagGroup{
Flags: []cli.Flag{
utils.MiningEnabledFlag,
utils.MinerThreadsFlag,
utils.TargetGasLimitFlag,
utils.MiningGPUFlag,
utils.AutoDAGFlag,
utils.EtherbaseFlag,

72
cmd/utils/flags.go
View File

@ -34,7 +34,6 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
@ -173,6 +172,11 @@ var (
Name: "minergpus",
Usage: "List of GPUs to use for mining (e.g. '0,1' will use the first two GPUs found)",
}
TargetGasLimitFlag = cli.StringFlag{
Name: "targetgaslimit",
Usage: "Target gas limit sets the artificial target gas floor for the blocks to mine",
Value: params.GenesisGasLimit.String(),
}
AutoDAGFlag = cli.BoolFlag{
Name: "autodag",
Usage: "Enable automatic DAG pregeneration",
@ -656,6 +660,7 @@ func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node.
accman := MakeAccountManager(ctx)
ethConf := &eth.Config{
ChainConfig: MustMakeChainConfig(ctx),
Genesis: MakeGenesisBlock(ctx),
FastSync: ctx.GlobalBool(FastSyncFlag.Name),
BlockChainVersion: ctx.GlobalInt(BlockchainVersionFlag.Name),
@ -701,8 +706,6 @@ func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node.
ethConf.Genesis = core.TestNetGenesisBlock()
}
state.StartingNonce = 1048576 // (2**20)
// overwrite homestead block
params.HomesteadBlock = params.TestNetHomesteadBlock
case ctx.GlobalBool(DevModeFlag.Name):
// Override the base network stack configs
@ -758,25 +761,56 @@ func SetupNetwork(ctx *cli.Context) {
core.BlockReward = big.NewInt(1.5e+18)
core.ExpDiffPeriod = big.NewInt(math.MaxInt64)
}
params.TargetGasLimit = common.String2Big(ctx.GlobalString(TargetGasLimitFlag.Name))
}
// SetupVM configured the VM package's global settings
func SetupVM(ctx *cli.Context) {
vm.EnableJit = ctx.GlobalBool(VMEnableJitFlag.Name)
vm.ForceJit = ctx.GlobalBool(VMForceJitFlag.Name)
vm.SetJITCacheSize(ctx.GlobalInt(VMJitCacheFlag.Name))
// MustMakeChainConfig reads the chain configuration from the given database.
func MustMakeChainConfig(ctx *cli.Context) *core.ChainConfig {
var (
db = MakeChainDatabase(ctx)
genesis = core.GetBlock(db, core.GetCanonicalHash(db, 0))
)
defer db.Close()
chainConfig, err := core.GetChainConfig(db, genesis.Hash())
if err != nil {
if err != core.ChainConfigNotFoundErr {
Fatalf("Could not make chain configuration: %v", err)
}
var homesteadBlockNo *big.Int
if ctx.GlobalBool(TestNetFlag.Name) {
homesteadBlockNo = params.TestNetHomesteadBlock
} else {
homesteadBlockNo = params.MainNetHomesteadBlock
}
chainConfig = &core.ChainConfig{
HomesteadBlock: homesteadBlockNo,
}
}
return chainConfig
}
// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context) ethdb.Database {
var (
datadir = MustMakeDataDir(ctx)
cache = ctx.GlobalInt(CacheFlag.Name)
handles = MakeDatabaseHandles()
)
chainDb, err := ethdb.NewLDBDatabase(filepath.Join(datadir, "chaindata"), cache, handles)
if err != nil {
Fatalf("Could not open database: %v", err)
}
return chainDb
}
// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database) {
datadir := MustMakeDataDir(ctx)
cache := ctx.GlobalInt(CacheFlag.Name)
handles := MakeDatabaseHandles()
var err error
if chainDb, err = ethdb.NewLDBDatabase(filepath.Join(datadir, "chaindata"), cache, handles); err != nil {
Fatalf("Could not open database: %v", err)
}
chainDb = MakeChainDatabase(ctx)
if ctx.GlobalBool(OlympicFlag.Name) {
_, err := core.WriteTestNetGenesisBlock(chainDb)
if err != nil {
@ -784,10 +818,10 @@ func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database
}
}
eventMux := new(event.TypeMux)
pow := ethash.New()
//genesis := core.GenesisBlock(uint64(ctx.GlobalInt(GenesisNonceFlag.Name)), blockDB)
chain, err = core.NewBlockChain(chainDb, pow, eventMux)
chainConfig := MustMakeChainConfig(ctx)
var eventMux event.TypeMux
chain, err = core.NewBlockChain(chainDb, chainConfig, ethash.New(), &eventMux)
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}