utils

package
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 Go to latest Published: May 10, 2016 License: GPL-3.0 Imports: 47 Imported by: 0

Documentation

Overview

Package utils contains internal helper functions for go-ethereum commands.

Index

Constants

This section is empty.

Variables

View Source 
var (
	// General settings
	DataDirFlag = DirectoryFlag{
		Name:  "datadir",
		Usage: "Data directory for the databases and keystore",
		Value: DirectoryString{common.DefaultDataDir()},
	}
	KeyStoreDirFlag = DirectoryFlag{
		Name:  "keystore",
		Usage: "Directory for the keystore (default = inside the datadir)",
	}
	NetworkIdFlag = cli.IntFlag{
		Name:  "networkid",
		Usage: "Network identifier (integer, 0=Olympic, 1=Frontier, 2=Morden)",
		Value: eth.NetworkId,
	}
	OlympicFlag = cli.BoolFlag{
		Name:  "olympic",
		Usage: "Olympic network: pre-configured pre-release test network",
	}
	TestNetFlag = cli.BoolFlag{
		Name:  "testnet",
		Usage: "Morden network: pre-configured test network with modified starting nonces (replay protection)",
	}
	DevModeFlag = cli.BoolFlag{
		Name:  "dev",
		Usage: "Developer mode: pre-configured private network with several debugging flags",
	}
	GenesisFileFlag = cli.StringFlag{
		Name:  "genesis",
		Usage: "Insert/overwrite the genesis block (JSON format)",
	}
	IdentityFlag = cli.StringFlag{
		Name:  "identity",
		Usage: "Custom node name",
	}
	NatspecEnabledFlag = cli.BoolFlag{
		Name:  "natspec",
		Usage: "Enable NatSpec confirmation notice",
	}
	DocRootFlag = DirectoryFlag{
		Name:  "docroot",
		Usage: "Document Root for HTTPClient file scheme",
		Value: DirectoryString{common.HomeDir()},
	}
	CacheFlag = cli.IntFlag{
		Name:  "cache",
		Usage: "Megabytes of memory allocated to internal caching (min 16MB / database forced)",
		Value: 128,
	}
	BlockchainVersionFlag = cli.IntFlag{
		Name:  "blockchainversion",
		Usage: "Blockchain version (integer)",
		Value: core.BlockChainVersion,
	}
	FastSyncFlag = cli.BoolFlag{
		Name:  "fast",
		Usage: "Enable fast syncing through state downloads",
	}
	LightKDFFlag = cli.BoolFlag{
		Name:  "lightkdf",
		Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
	}
	// Miner settings
	// TODO: refactor CPU vs GPU mining flags
	MiningEnabledFlag = cli.BoolFlag{
		Name:  "mine",
		Usage: "Enable mining",
	}
	MinerThreadsFlag = cli.IntFlag{
		Name:  "minerthreads",
		Usage: "Number of CPU threads to use for mining",
		Value: runtime.NumCPU(),
	}
	MiningGPUFlag = cli.StringFlag{
		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",
	}
	EtherbaseFlag = cli.StringFlag{
		Name:  "etherbase",
		Usage: "Public address for block mining rewards (default = first account created)",
		Value: "0",
	}
	GasPriceFlag = cli.StringFlag{
		Name:  "gasprice",
		Usage: "Minimal gas price to accept for mining a transactions",
		Value: new(big.Int).Mul(big.NewInt(20), common.Shannon).String(),
	}
	ExtraDataFlag = cli.StringFlag{
		Name:  "extradata",
		Usage: "Block extra data set by the miner (default = client version)",
	}
	// Account settings
	UnlockedAccountFlag = cli.StringFlag{
		Name:  "unlock",
		Usage: "Comma separated list of accounts to unlock",
		Value: "",
	}
	PasswordFileFlag = cli.StringFlag{
		Name:  "password",
		Usage: "Password file to use for non-inteactive password input",
		Value: "",
	}

	VMForceJitFlag = cli.BoolFlag{
		Name:  "forcejit",
		Usage: "Force the JIT VM to take precedence",
	}
	VMJitCacheFlag = cli.IntFlag{
		Name:  "jitcache",
		Usage: "Amount of cached JIT VM programs",
		Value: 64,
	}
	VMEnableJitFlag = cli.BoolFlag{
		Name:  "jitvm",
		Usage: "Enable the JIT VM",
	}

	// logging and debug settings
	MetricsEnabledFlag = cli.BoolFlag{
		Name:  metrics.MetricsEnabledFlag,
		Usage: "Enable metrics collection and reporting",
	}
	FakePoWFlag = cli.BoolFlag{
		Name:  "fakepow",
		Usage: "Disables proof-of-work verification",
	}

	// RPC settings
	RPCEnabledFlag = cli.BoolFlag{
		Name:  "rpc",
		Usage: "Enable the HTTP-RPC server",
	}
	RPCListenAddrFlag = cli.StringFlag{
		Name:  "rpcaddr",
		Usage: "HTTP-RPC server listening interface",
		Value: common.DefaultHTTPHost,
	}
	RPCPortFlag = cli.IntFlag{
		Name:  "rpcport",
		Usage: "HTTP-RPC server listening port",
		Value: common.DefaultHTTPPort,
	}
	RPCCORSDomainFlag = cli.StringFlag{
		Name:  "rpccorsdomain",
		Usage: "Comma separated list of domains from which to accept cross origin requests (browser enforced)",
		Value: "",
	}
	RPCApiFlag = cli.StringFlag{
		Name:  "rpcapi",
		Usage: "API's offered over the HTTP-RPC interface",
		Value: rpc.DefaultHTTPApis,
	}
	IPCDisabledFlag = cli.BoolFlag{
		Name:  "ipcdisable",
		Usage: "Disable the IPC-RPC server",
	}
	IPCApiFlag = cli.StringFlag{
		Name:  "ipcapi",
		Usage: "API's offered over the IPC-RPC interface",
		Value: rpc.DefaultIPCApis,
	}
	IPCPathFlag = DirectoryFlag{
		Name:  "ipcpath",
		Usage: "Filename for IPC socket/pipe within the datadir (explicit paths escape it)",
		Value: DirectoryString{common.DefaultIPCSocket},
	}
	WSEnabledFlag = cli.BoolFlag{
		Name:  "ws",
		Usage: "Enable the WS-RPC server",
	}
	WSListenAddrFlag = cli.StringFlag{
		Name:  "wsaddr",
		Usage: "WS-RPC server listening interface",
		Value: common.DefaultWSHost,
	}
	WSPortFlag = cli.IntFlag{
		Name:  "wsport",
		Usage: "WS-RPC server listening port",
		Value: common.DefaultWSPort,
	}
	WSApiFlag = cli.StringFlag{
		Name:  "wsapi",
		Usage: "API's offered over the WS-RPC interface",
		Value: rpc.DefaultHTTPApis,
	}
	WSAllowedOriginsFlag = cli.StringFlag{
		Name:  "wsorigins",
		Usage: "Origins from which to accept websockets requests",
		Value: "",
	}
	ExecFlag = cli.StringFlag{
		Name:  "exec",
		Usage: "Execute JavaScript statement (only in combination with console/attach)",
	}
	PreLoadJSFlag = cli.StringFlag{
		Name:  "preload",
		Usage: "Comma separated list of JavaScript files to preload into the console",
	}

	// Network Settings
	MaxPeersFlag = cli.IntFlag{
		Name:  "maxpeers",
		Usage: "Maximum number of network peers (network disabled if set to 0)",
		Value: 25,
	}
	MaxPendingPeersFlag = cli.IntFlag{
		Name:  "maxpendpeers",
		Usage: "Maximum number of pending connection attempts (defaults used if set to 0)",
		Value: 0,
	}
	ListenPortFlag = cli.IntFlag{
		Name:  "port",
		Usage: "Network listening port",
		Value: 30303,
	}
	BootnodesFlag = cli.StringFlag{
		Name:  "bootnodes",
		Usage: "Comma separated enode URLs for P2P discovery bootstrap",
		Value: "",
	}
	NodeKeyFileFlag = cli.StringFlag{
		Name:  "nodekey",
		Usage: "P2P node key file",
	}
	NodeKeyHexFlag = cli.StringFlag{
		Name:  "nodekeyhex",
		Usage: "P2P node key as hex (for testing)",
	}
	NATFlag = cli.StringFlag{
		Name:  "nat",
		Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
		Value: "any",
	}
	NoDiscoverFlag = cli.BoolFlag{
		Name:  "nodiscover",
		Usage: "Disables the peer discovery mechanism (manual peer addition)",
	}
	WhisperEnabledFlag = cli.BoolFlag{
		Name:  "shh",
		Usage: "Enable Whisper",
	}
	// ATM the url is left to the user and deployment to
	JSpathFlag = cli.StringFlag{
		Name:  "jspath",
		Usage: "JavaScript root path for `loadScript` and document root for `admin.httpGet`",
		Value: ".",
	}
	SolcPathFlag = cli.StringFlag{
		Name:  "solc",
		Usage: "Solidity compiler command to be used",
		Value: "solc",
	}

	// Gas price oracle settings
	GpoMinGasPriceFlag = cli.StringFlag{
		Name:  "gpomin",
		Usage: "Minimum suggested gas price",
		Value: new(big.Int).Mul(big.NewInt(20), common.Shannon).String(),
	}
	GpoMaxGasPriceFlag = cli.StringFlag{
		Name:  "gpomax",
		Usage: "Maximum suggested gas price",
		Value: new(big.Int).Mul(big.NewInt(500), common.Shannon).String(),
	}
	GpoFullBlockRatioFlag = cli.IntFlag{
		Name:  "gpofull",
		Usage: "Full block threshold for gas price calculation (%)",
		Value: 80,
	}
	GpobaseStepDownFlag = cli.IntFlag{
		Name:  "gpobasedown",
		Usage: "Suggested gas price base step down ratio (1/1000)",
		Value: 10,
	}
	GpobaseStepUpFlag = cli.IntFlag{
		Name:  "gpobaseup",
		Usage: "Suggested gas price base step up ratio (1/1000)",
		Value: 100,
	}
	GpobaseCorrectionFactorFlag = cli.IntFlag{
		Name:  "gpobasecf",
		Usage: "Suggested gas price base correction factor (%)",
		Value: 110,
	}
)
View Source 
var FrontierBootNodes = []*discover.Node{

	discover.MustParseNode("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303"),
	discover.MustParseNode("enode://de471bccee3d042261d52e9bff31458daecc406142b401d4cd848f677479f73104b9fdeb090af9583d3391b7f10cb2ba9e26865dd5fca4fcdc0fb1e3b723c786@54.94.239.50:30303"),
	discover.MustParseNode("enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082@52.74.57.123:30303"),

	discover.MustParseNode("enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303"),
}

FrontierBootNodes are the enode URLs of the P2P bootstrap nodes running on the Frontier network.

View Source 
var Stdin = newUserInputReader()

Holds the stdin line reader. Only this reader may be used for input because it keeps an internal buffer.

View Source 
var TestNetBootNodes = []*discover.Node{

	discover.MustParseNode("enode://e4533109cc9bd7604e4ff6c095f7a1d807e15b38e9bfeb05d3b7c423ba86af0a9e89abbf40bd9dde4250fef114cd09270fa4e224cbeef8b7bf05a51e8260d6b8@94.242.229.4:40404"),
	discover.MustParseNode("enode://8c336ee6f03e99613ad21274f269479bf4413fb294d697ef15ab897598afb931f56beb8e97af530aee20ce2bcba5776f4a312bc168545de4d43736992c814592@94.242.229.203:30303"),
}

TestNetBootNodes are the enode URLs of the P2P bootstrap nodes running on the Morden test network.

Functions

func ExportAppendChain 

func ExportAppendChain(blockchain *core.BlockChain, fn string, first uint64, last uint64) error

func ExportChain 

func ExportChain(blockchain *core.BlockChain, fn string) error

func Fatalf 

func Fatalf(format string, args ...interface{})

Fatalf formats a message to standard error and exits the program. The message is also printed to standard output if standard error is redirected to a different file.

func FormatTransactionData 

func FormatTransactionData(data string) []byte

func ImportChain 

func ImportChain(chain *core.BlockChain, fn string) error

func MakeAccountManager 

func MakeAccountManager(ctx *cli.Context) *accounts.Manager

MakeAccountManager creates an account manager from set command line flags.

func MakeAddress added in v1.4.0 

func MakeAddress(accman *accounts.Manager, account string) (accounts.Account, error)

MakeAddress converts an account specified directly as a hex encoded string or a key index in the key store to an internal account representation.

func MakeBootstrapNodes added in v1.4.0 

func MakeBootstrapNodes(ctx *cli.Context) []*discover.Node

MakeBootstrapNodes creates a list of bootstrap nodes from the command line flags, reverting to pre-configured ones if none have been specified.

func MakeChain 

func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database)

MakeChain creates a chain manager from set command line flags.

func MakeChainDatabase added in v1.4.0 

func MakeChainDatabase(ctx *cli.Context) ethdb.Database

MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.

func MakeDatabaseHandles added in v1.4.0 

func MakeDatabaseHandles() int

MakeDatabaseHandles raises out the number of allowed file handles per process for Geth and returns half of the allowance to assign to the database.

func MakeEtherbase added in v1.4.0 

func MakeEtherbase(accman *accounts.Manager, ctx *cli.Context) common.Address

MakeEtherbase retrieves the etherbase either from the directly specified command line flags or from the keystore if CLI indexed.

func MakeGenesisBlock added in v1.4.0 

func MakeGenesisBlock(ctx *cli.Context) string

MakeGenesisBlock loads up a genesis block from an input file specified in the command line, or returns the empty string if none set.

func MakeHTTPRpcHost added in v1.4.0 

func MakeHTTPRpcHost(ctx *cli.Context) string

MakeHTTPRpcHost creates the HTTP RPC listener interface string from the set command line flags, returning empty if the HTTP endpoint is disabled.

func MakeIPCPath added in v1.4.0 

func MakeIPCPath(ctx *cli.Context) string

MakeIPCPath creates an IPC path configuration from the set command line flags, returning an empty string if IPC was explicitly disabled, or the set path.

func MakeKeyStoreDir added in v1.4.0 

func MakeKeyStoreDir(datadir string, ctx *cli.Context) string

MakeKeyStoreDir resolves the folder to use for storing the account keys from the set command line flags, returning the explicitly requested path, or one inside the data directory otherwise.

func MakeListenAddress added in v1.4.0 

func MakeListenAddress(ctx *cli.Context) string

MakeListenAddress creates a TCP listening address string from set command line flags.

func MakeMinerExtra added in v1.4.0 

func MakeMinerExtra(extra []byte, ctx *cli.Context) []byte

MakeMinerExtra resolves extradata for the miner from the set command line flags or returns a default one composed on the client, runtime and OS metadata.

func MakeNAT 

func MakeNAT(ctx *cli.Context) nat.Interface

MakeNAT creates a port mapper from set command line flags.

func MakeNodeKey 

func MakeNodeKey(ctx *cli.Context) *ecdsa.PrivateKey

MakeNodeKey creates a node key from set command line flags, either loading it from a file or as a specified hex value. If neither flags were provided, this method returns nil and an emphemeral key is to be generated.

func MakeNodeName added in v1.4.0 

func MakeNodeName(client, version string, ctx *cli.Context) string

MakeNodeName creates a node name from a base set and the command line flags.

func MakePasswordList added in v1.4.0 

func MakePasswordList(ctx *cli.Context) []string

MakePasswordList reads password lines from the file specified by --password.

func MakeRPCModules added in v1.4.0 

func MakeRPCModules(input string) []string

MakeRPCModules splits input separated by a comma and trims excessive white space from the substrings.

func MakeSystemNode added in v1.4.0 

func MakeSystemNode(name, version string, relconf release.Config, extra []byte, ctx *cli.Context) *node.Node

MakeSystemNode sets up a local node, configures the services to launch and assembles the P2P protocol stack.

func MakeWSRpcHost added in v1.4.0 

func MakeWSRpcHost(ctx *cli.Context) string

MakeWSRpcHost creates the WebSocket RPC listener interface string from the set command line flags, returning empty if the HTTP endpoint is disabled.

func MustMakeChainConfig added in v1.4.0 

func MustMakeChainConfig(ctx *cli.Context) *core.ChainConfig

MustMakeChainConfig reads the chain configuration from the database in ctx.Datadir.

func MustMakeChainConfigFromDb added in v1.4.0 

func MustMakeChainConfigFromDb(ctx *cli.Context, db ethdb.Database) *core.ChainConfig

MustMakeChainConfigFromDb reads the chain configuration from the given database.

func MustMakeDataDir added in v1.4.0 

func MustMakeDataDir(ctx *cli.Context) string

MustMakeDataDir retrieves the currently requested data directory, terminating if none (or the empty string) is specified. If the node is starting a testnet, the a subdirectory of the specified datadir will be used.

func NewApp 

func NewApp(version, usage string) *cli.App

NewApp creates an app with sane defaults.

func NewRemoteRPCClient added in v1.4.0 

func NewRemoteRPCClient(ctx *cli.Context) (rpc.Client, error)

NewRemoteRPCClient returns a RPC client which connects to a running geth instance. Depending on the given context this can either be a IPC or a HTTP client.

func NewRemoteRPCClientFromString added in v1.4.0 

func NewRemoteRPCClientFromString(endpoint string) (rpc.Client, error)

NewRemoteRPCClientFromString returns a RPC client which connects to the given endpoint. It must start with either `ipc:` or `rpc:` (HTTP).

func SetupNetwork added in v1.3.1 

func SetupNetwork(ctx *cli.Context)

SetupNetwork configures the system for either the main net or some test network.

func StartNode added in v1.4.0 

func StartNode(stack *node.Node)

Types

type DirectoryFlag 

type DirectoryFlag struct {
	cli.GenericFlag
	Name   string
	Value  DirectoryString
	Usage  string
	EnvVar string
}

Custom cli.Flag type which expand the received string to an absolute path. e.g. ~/.ethereum -> /home/username/.ethereum

func (DirectoryFlag) Apply 

func (self DirectoryFlag) Apply(set *flag.FlagSet)

called by cli library, grabs variable from environment (if in env) and adds variable to flag set for parsing.

func (*DirectoryFlag) Set 

func (self *DirectoryFlag) Set(value string)

func (DirectoryFlag) String 

func (self DirectoryFlag) String() string

type DirectoryString 

type DirectoryString struct {
	Value string
}

Custom type which is registered in the flags library which cli uses for argument parsing. This allows us to expand Value to an absolute path when the argument is parsed

func (*DirectoryString) Set 

func (self *DirectoryString) Set(value string) error

func (*DirectoryString) String 

func (self *DirectoryString) String() string

type Jeth added in v1.4.0 

type Jeth struct {
	// contains filtered or unexported fields
}

func NewJeth added in v1.4.0 

func NewJeth(re *jsre.JSRE, client rpc.Client) *Jeth

NewJeth create a new backend for the JSRE console

func (*Jeth) NewAccount added in v1.4.0 

func (self *Jeth) NewAccount(call otto.FunctionCall) (response otto.Value)

NewAccount asks the user for the password and than executes the jeth.newAccount callback in the jsre

func (*Jeth) Send added in v1.4.0 

func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value)

Send will serialize the first argument, send it to the node and returns the response.

func (*Jeth) Sleep added in v1.4.0 

func (self *Jeth) Sleep(call otto.FunctionCall) (response otto.Value)

Sleep will halt the console for arg[0] seconds.

func (*Jeth) SleepBlocks added in v1.4.0 

func (self *Jeth) SleepBlocks(call otto.FunctionCall) (response otto.Value)

SleepBlocks will wait for a specified number of new blocks or max for a given of seconds. sleepBlocks(nBlocks[, maxSleep]).

func (*Jeth) UnlockAccount added in v1.4.0 

func (self *Jeth) UnlockAccount(call otto.FunctionCall) (response otto.Value)

UnlockAccount asks the user for the password and than executes the jeth.UnlockAccount callback in the jsre. It will need the public address for the account to unlock as first argument. The second argument is an optional string with the password. If not given the user is prompted for the password. The third argument is an optional integer which specifies for how long the account will be unlocked (in seconds).

Source Files

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