// New creates an XEth that uses the given frontend.
// If a nil Frontend is provided, a default frontend which
// confirms all transactions will be used.
func New(ethereum *eth.Ethereum, frontend Frontend) *XEth {
xeth := &XEth{
backend: ethereum,
frontend: frontend,
quit: make(chan struct{}),
filterManager: filters.NewFilterSystem(ethereum.EventMux()),
logQueue: make(map[int]*logQueue),
blockQueue: make(map[int]*hashQueue),
transactionQueue: make(map[int]*hashQueue),
messages: make(map[int]*whisperFilter),
agent: miner.NewRemoteAgent(),
gpo: eth.NewGasPriceOracle(ethereum),
}
if ethereum.Whisper() != nil {
xeth.whisper = NewWhisper(ethereum.Whisper())
}
ethereum.Miner().Register(xeth.agent)
if frontend == nil {
xeth.frontend = dummyFrontend{}
}
state, _ := xeth.backend.BlockChain().State()
xeth.state = NewState(xeth, state)
go xeth.start()
return xeth
}
// New initialises a new abi and returns the contract. It does not
// deploy the contract, hence the name.
func New(db ethdb.Database, mux *event.TypeMux, blockchain *core.BlockChain, callState func() *state.StateDB) (*Contract, error) {
contract := Contract{
blockchain: blockchain,
subs: make(map[common.Hash]*Subscription),
filters: filters.NewFilterSystem(mux),
callState: callState,
}
contract.callKey, _ = crypto.GenerateKey()
var err error
contract.abi, err = abi.JSON(strings.NewReader(jsonAbi))
if err != nil {
return nil, err
}
return &contract, nil
}