eth

package module
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 Go to latest Published: Dec 24, 2014 License: LGPL-2.1-or-later Imports: 28 Imported by: 0

README

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Ethereum

Build Status master Build Status develop

Ethereum Go Client © 2014 Jeffrey Wilcke.

Current state: Proof of Concept 0.7

Ethereum is currently in its testing phase.

Build

To build Mist (GUI):

go get github.com/ethereum/go-ethereum/cmd/mist

To build the node (CLI):

go get github.com/ethereum/go-ethereum/cmd/ethereum

For further, detailed, build instruction please see the Wiki

Automated (dev) builds

  • [OS X]
  • [Windows] Coming soon™
  • [Linux] Coming soon™

Binaries

Go Ethereum comes with several binaries found in cmd:

  • mist Official Ethereum Browser
  • ethereum Ethereum CLI
  • ethtest test tool which runs with the tests suit: ethtest "cat myfile.json".
  • evm is a generic Ethereum Virtual Machine: evm -code 60ff60ff -gas 10000 -price 0 -dump. See -h for a detailed description.

General command line options

== Shared between ethereum and Mist ==

= Settings
-id      Set the custom identifier of the client (shows up on other clients)
-port    Port on which the server will accept incomming connections
-upnp    Enable UPnP
-maxpeer Desired amount of peers
-rpc     Start JSON RPC
-dir     Data directory used to store configs and databases

= Utility 
-h         This
-import    Import a private key
-genaddr   Generates a new address and private key (destructive action)
-dump      Dump a specific state of a block to stdout given the -number or -hash
-difftool  Supress all output and prints VM output to stdout
-diff      vm=only vm output, all=all output including state storage

Ethereum only
ethereum [options] [filename]
-js        Start the JavaScript REPL
filename   Load the given file and interpret as JavaScript
-m       Start mining blocks

== Mist only ==

-asset_path    absolute path to GUI assets directory

Contribution

If you'd like to contribute to Ethereum please fork, fix, commit and send a pull request. Commits who do not comply with the coding standards are ignored (use gofmt!). If you send pull requests make absolute sure that you commit on the develop branch and that you do not merge to master. Commits that are directly based on master are simply ignored.

To make life easier try git flow it sets this all up and streamlines your work flow.

Coding standards

Sources should be formatted according to the Go Formatting Style.

Unless structs fields are supposed to be directly accesible, provide Getters and hide the fields through Go's exporting facility.

When you comment put meaningfull comments. Describe in detail what you want to achieve.

wrong

// Check if the value at x is greater than y
if x > y {
    // It's greater!
}

Everyone reading the source probably know what you wanted to achieve with above code. Those are not meaningful comments.

While the project isn't 100% tested I want you to write tests non the less. I haven't got time to evaluate everyone's code in detail so I expect you to write tests for me so I don't have to test your code manually. (If you want to contribute by just writing tests that's fine too!)

Documentation

Index

Constants

View Source 
const (

	// Current protocol version
	ProtocolVersion = 49
	// Current P2P version
	P2PVersion = 2
	// Ethereum network version
	NetVersion = 0
)

Variables

This section is empty.

Functions

func PastPeers 

func PastPeers() []string

Types

type BlockPool 

type BlockPool struct {
	ChainLength, BlocksProcessed int
	// contains filtered or unexported fields
}

func NewBlockPool 

func NewBlockPool(eth *Ethereum) *BlockPool

func (*BlockPool) Add 

func (self *BlockPool) Add(b *types.Block, peer *Peer)

func (*BlockPool) AddHash 

func (self *BlockPool) AddHash(hash []byte, peer *Peer)

func (*BlockPool) AddNew 

func (self *BlockPool) AddNew(b *types.Block, peer *Peer)

func (*BlockPool) Blocks 

func (self *BlockPool) Blocks() (blocks types.Blocks)

func (*BlockPool) DistributeHashes 

func (self *BlockPool) DistributeHashes()

func (*BlockPool) FetchHashes 

func (self *BlockPool) FetchHashes(peer *Peer) bool

func (*BlockPool) HasCommonHash 

func (self *BlockPool) HasCommonHash(hash []byte) bool

func (*BlockPool) HasLatestHash 

func (self *BlockPool) HasLatestHash() bool

func (*BlockPool) Len 

func (self *BlockPool) Len() int

func (*BlockPool) Remove 

func (self *BlockPool) Remove(hash []byte)

func (*BlockPool) Reset 

func (self *BlockPool) Reset()

func (*BlockPool) Start 

func (self *BlockPool) Start()

func (*BlockPool) Stop 

func (self *BlockPool) Stop()

type Caps 

type Caps byte

Peer capabilities 

const (
	CapPeerDiscTy Caps = 1 << iota
	CapTxTy
	CapChainTy

	CapDefault = CapChainTy | CapTxTy | CapPeerDiscTy
)

func (Caps) IsCap 

func (c Caps) IsCap(cap Caps) bool

func (Caps) String 

func (c Caps) String() string

type ChainSyncEvent 

type ChainSyncEvent struct {
	InSync bool
}

type DiscReason 

type DiscReason byte
const (
	// Values are given explicitly instead of by iota because these values are
	// defined by the wire protocol spec; it is easier for humans to ensure
	// correctness when values are explicit.
	DiscRequested DiscReason = iota
	DiscReTcpSysErr
	DiscBadProto
	DiscBadPeer
	DiscTooManyPeers
	DiscConnDup
	DiscGenesisErr
	DiscProtoErr
	DiscQuitting
)

func (DiscReason) String 

func (d DiscReason) String() string

type Ethereum 

type Ethereum struct {

	// Nonce
	Nonce uint64

	Addr net.Addr
	Port string

	// Specifies the desired amount of maximum peers
	MaxPeers int

	Mining bool

	RpcServer *rpc.JsonRpcServer
	// contains filtered or unexported fields
}

func New 

func New(db ethutil.Database, clientIdentity wire.ClientIdentity, keyManager *crypto.KeyManager, caps Caps, usePnp bool) (*Ethereum, error)

func (*Ethereum) AddPeer 

func (s *Ethereum) AddPeer(conn net.Conn)

func (*Ethereum) BlacklistPeer 

func (self *Ethereum) BlacklistPeer(peer *Peer)

func (*Ethereum) BlockManager 

func (s *Ethereum) BlockManager() *core.BlockManager

func (*Ethereum) BlockPool 

func (s *Ethereum) BlockPool() *BlockPool

func (*Ethereum) Broadcast 

func (s *Ethereum) Broadcast(msgType wire.MsgType, data []interface{})

func (*Ethereum) BroadcastMsg 

func (s *Ethereum) BroadcastMsg(msg *wire.Msg)

func (*Ethereum) ChainManager 

func (s *Ethereum) ChainManager() *core.ChainManager

func (*Ethereum) ClientIdentity 

func (s *Ethereum) ClientIdentity() wire.ClientIdentity

func (*Ethereum) ConnectToPeer 

func (s *Ethereum) ConnectToPeer(addr string) error

func (*Ethereum) Db 

func (self *Ethereum) Db() ethutil.Database

func (*Ethereum) EventMux 

func (s *Ethereum) EventMux() *event.TypeMux

func (*Ethereum) GetFilter 

func (self *Ethereum) GetFilter(id int) *core.Filter

GetFilter retrieves a filter installed using InstallFilter. The filter may not be modified.

func (*Ethereum) HighestTDPeer 

func (s *Ethereum) HighestTDPeer() (td *big.Int)

func (*Ethereum) InOutPeers 

func (s *Ethereum) InOutPeers() []*Peer

func (*Ethereum) InboundPeers 

func (s *Ethereum) InboundPeers() []*Peer

func (*Ethereum) InstallFilter 

func (self *Ethereum) InstallFilter(filter *core.Filter) (id int)

InstallFilter adds filter for blockchain events. The filter's callbacks will run for matching blocks and messages. The filter should not be modified after it has been installed.

func (*Ethereum) IsListening 

func (s *Ethereum) IsListening() bool

func (*Ethereum) IsMining 

func (s *Ethereum) IsMining() bool

func (*Ethereum) IsUpToDate 

func (s *Ethereum) IsUpToDate() bool

func (*Ethereum) KeyManager 

func (s *Ethereum) KeyManager() *crypto.KeyManager

func (*Ethereum) OutboundPeers 

func (s *Ethereum) OutboundPeers() []*Peer

func (*Ethereum) PeerCount 

func (s *Ethereum) PeerCount() int

func (*Ethereum) Peers 

func (s *Ethereum) Peers() *list.List

func (*Ethereum) ProcessPeerList 

func (s *Ethereum) ProcessPeerList(addrs []string)

func (*Ethereum) PushPeer 

func (s *Ethereum) PushPeer(peer *Peer)

func (*Ethereum) RemovePeer 

func (s *Ethereum) RemovePeer(p *Peer)

func (*Ethereum) Seed 

func (s *Ethereum) Seed()

func (*Ethereum) ServerCaps 

func (s *Ethereum) ServerCaps() Caps

func (*Ethereum) Start 

func (s *Ethereum) Start(seed bool)

Start the ethereum

func (*Ethereum) Stop 

func (s *Ethereum) Stop()

func (*Ethereum) TxPool 

func (s *Ethereum) TxPool() *core.TxPool

func (*Ethereum) UninstallFilter 

func (self *Ethereum) UninstallFilter(id int)

func (*Ethereum) WaitForShutdown 

func (s *Ethereum) WaitForShutdown()

This function will wait for a shutdown and resumes main thread execution

type NAT 

type NAT interface {
	GetExternalAddress() (addr net.IP, err error)
	AddPortMapping(protocol string, externalPort, internalPort int, description string, timeout int) (mappedExternalPort int, err error)
	DeletePortMapping(protocol string, externalPort, internalPort int) (err error)
}

protocol is either "udp" or "tcp"

func Discover 

func Discover() (nat NAT, err error)

func NewNatPMP 

func NewNatPMP(gateway net.IP) (nat NAT)

type Peer 

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

func NewOutboundPeer 

func NewOutboundPeer(addr string, ethereum *Ethereum, caps Caps) *Peer

func NewPeer 

func NewPeer(conn net.Conn, ethereum *Ethereum, inbound bool) *Peer

func (*Peer) Caps 

func (self *Peer) Caps() *ethutil.Value

func (*Peer) Connect 

func (self *Peer) Connect(addr string) (conn net.Conn, err error)

func (*Peer) Connected 

func (p *Peer) Connected() *int32

func (*Peer) FetchBlocks 

func (self *Peer) FetchBlocks(hashes [][]byte)

func (*Peer) FetchHashes 

func (self *Peer) FetchHashes() bool

func (*Peer) FetchingHashes 

func (self *Peer) FetchingHashes() bool

func (*Peer) HandleInbound 

func (p *Peer) HandleInbound()

Inbound handler. Inbound messages are received here and passed to the appropriate methods

func (*Peer) HandleOutbound 

func (p *Peer) HandleOutbound()

Outbound message handler. Outbound messages are handled here

func (*Peer) Host 

func (p *Peer) Host() []byte

func (*Peer) Inbound 

func (p *Peer) Inbound() bool

func (*Peer) IsCap 

func (self *Peer) IsCap(cap string) bool

func (*Peer) LastPong 

func (p *Peer) LastPong() int64

func (*Peer) LastSend 

func (p *Peer) LastSend() time.Time

func (*Peer) PingTime 

func (p *Peer) PingTime() string

Getters

func (*Peer) Port 

func (p *Peer) Port() uint16

func (*Peer) QueueMessage 

func (p *Peer) QueueMessage(msg *wire.Msg)

Outputs any RLP encoded data to the peer

func (*Peer) RlpData 

func (p *Peer) RlpData() []interface{}

func (*Peer) SetVersion 

func (p *Peer) SetVersion(version string)

Setters

func (*Peer) Start 

func (p *Peer) Start()

func (*Peer) Stop 

func (p *Peer) Stop()

func (*Peer) StopWithReason 

func (p *Peer) StopWithReason(reason DiscReason)

func (*Peer) String 

func (p *Peer) String() string

func (*Peer) Version 

func (p *Peer) Version() string

type PeerListEvent 

type PeerListEvent struct {
	Peers *list.List
}

Source Files

View all Source files

Directories

Path Synopsis
cmd
ethereum
ethereum/repl
ethtest
evm
mist
peerserver
utils
compression
rle
types
Package event implements an event multiplexer.
 Package event implements an event multiplexer.
filter
Package logger implements a multi-output leveled logger.
 Package logger implements a multi-output leveled logger.
pow
ar
ezp
Package rlp implements the RLP serialization format.
 Package rlp implements the RLP serialization format.
tests
helper
ui
qt
qt/qwhisper
Package wire provides low level access to the Ethereum network and allows you to broadcast data over the network.
 Package wire provides low level access to the Ethereum network and allows you to broadcast data over the network.

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