added miner API

rpc/api/api.go

@@ -4,10 +4,11 @@ import "github.com/ethereum/go-ethereum/rpc/shared"
 
 const (
 	// List with all API's which are offered over the IPC interface by default
-	DefaultIpcApis = "eth,web3"
+	DefaultIpcApis = "eth,web3,miner"
 
 	EthApiName = "eth"
 	MergedApiName = "merged"
+	MinerApiName = "miner"
 	Web3ApiName = "web3"
 )
 

rpc/api/miner.go

+package api
+
+import (
+	"github.com/ethereum/ethash"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/eth"
+	"github.com/ethereum/go-ethereum/rpc/codec"
+	"github.com/ethereum/go-ethereum/rpc/shared"
+)
+
+const (
+	MinerVersion = "1.0.0"
+)
+
+var (
+// mapping between methods and handlers
+	MinerMapping = map[string]minerhandler{
+		"miner_hashrate":     (*miner).Hashrate,
+		"miner_makeDAG":      (*miner).MakeDAG,
+		"miner_setExtra":     (*miner).SetExtra,
+		"miner_setGasPrice":  (*miner).SetGasPrice,
+		"miner_startAutoDAG": (*miner).StartAutoDAG,
+		"miner_start":        (*miner).StartMiner,
+		"miner_stopAutoDAG":  (*miner).StopAutoDAG,
+		"miner_stop":         (*miner).StopMiner,
+	}
+)
+
+// miner callback handler
+type minerhandler func(*miner, *shared.Request) (interface{}, error)
+
+// miner api provider
+type miner struct {
+	ethereum *eth.Ethereum
+	methods  map[string]minerhandler
+	codec    codec.ApiCoder
+}
+
+// create a new miner api instance
+func NewMinerApi(ethereum *eth.Ethereum, coder codec.Codec) *miner {
+	return &miner{
+		ethereum: ethereum,
+		methods:  MinerMapping,
+		codec:    coder.New(nil),
+	}
+}
+
+// Execute given request
+func (self *miner) Execute(req *shared.Request) (interface{}, error) {
+	if callback, ok := self.methods[req.Method]; ok {
+		return callback(self, req)
+	}
+
+	return nil, &shared.NotImplementedError{req.Method}
+}
+
+// collection with supported methods
+func (self *miner) Methods() []string {
+	methods := make([]string, len(self.methods))
+	i := 0
+	for k := range self.methods {
+		methods[i] = k
+		i++
+	}
+	return methods
+}
+
+func (self *miner) Name() string {
+	return MinerApiName
+}
+
+func (self *miner) StartMiner(req *shared.Request) (interface{}, error) {
+	args := new(StartMinerArgs)
+	if err := self.codec.Decode(req.Params, &args); err != nil {
+		return nil, err
+	}
+	if args.Threads == -1 { // (not specified by user, use default)
+		args.Threads = self.ethereum.MinerThreads
+	}
+
+	self.ethereum.StartAutoDAG()
+	err := self.ethereum.StartMining(args.Threads)
+	if err == nil {
+		return true, nil
+	}
+
+	return false, err
+}
+
+func (self *miner) StopMiner(req *shared.Request) (interface{}, error) {
+	self.ethereum.StopMining()
+	return true, nil
+}
+
+func (self *miner) Hashrate(req *shared.Request) (interface{}, error) {
+	return self.ethereum.Miner().HashRate(), nil
+}
+
+func (self *miner) SetExtra(req *shared.Request) (interface{}, error) {
+	args := new(SetExtraArgs)
+	if err := self.codec.Decode(req.Params, &args); err != nil {
+		return nil, err
+	}
+	self.ethereum.Miner().SetExtra([]byte(args.Data))
+	return true, nil
+}
+
+func (self *miner) SetGasPrice(req *shared.Request) (interface{}, error) {
+	args := new(GasPriceArgs)
+	if err := self.codec.Decode(req.Params, &args); err != nil {
+		return false, err
+	}
+
+	self.ethereum.Miner().SetGasPrice(common.String2Big(args.Price))
+	return true, nil
+}
+
+func (self *miner) StartAutoDAG(req *shared.Request) (interface{}, error) {
+	self.ethereum.StartAutoDAG()
+	return true, nil
+}
+
+func (self *miner) StopAutoDAG(req *shared.Request) (interface{}, error) {
+	self.ethereum.StopAutoDAG()
+	return true, nil
+}
+
+func (self *miner) MakeDAG(req *shared.Request) (interface{}, error) {
+	args := new(MakeDAGArgs)
+	if err := self.codec.Decode(req.Params, &args); err != nil {
+		return nil, err
+	}
+
+	if args.BlockNumber < 0 {
+		return false, shared.NewValidationError("BlockNumber", "BlockNumber must be positive")
+	}
+
+	err := ethash.MakeDAG(uint64(args.BlockNumber), "")
+	if err == nil {
+		return true, nil
+	}
+	return false, err
+}
\ No newline at end of file

rpc/api/miner_args.go

+package api
+
+import (
+	"encoding/json"
+
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/rpc/shared"
+)
+
+type StartMinerArgs struct {
+	Threads int
+}
+
+func (args *StartMinerArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []interface{}
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	if len(obj) == 0 || obj[0] == nil {
+		args.Threads = -1
+		return nil
+	}
+
+	var num *big.Int
+	if num, err = numString(obj[0]); err != nil {
+		return err
+	}
+	args.Threads = int(num.Int64())
+	return nil
+}
+
+type SetExtraArgs struct {
+	Data string
+}
+
+func (args *SetExtraArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []interface{}
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	extrastr, ok := obj[0].(string)
+	if !ok {
+		return shared.NewInvalidTypeError("Price", "not a string")
+	}
+	args.Data = extrastr
+
+	return nil
+}
+
+type GasPriceArgs struct {
+	Price string
+}
+
+func (args *GasPriceArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []interface{}
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	pricestr, ok := obj[0].(string)
+	if !ok {
+		return shared.NewInvalidTypeError("Price", "not a string")
+	}
+	args.Price = pricestr
+
+	return nil
+}
+
+type MakeDAGArgs struct {
+	BlockNumber int64
+}
+
+func (args *MakeDAGArgs) UnmarshalJSON(b []byte) (err error) {
+	args.BlockNumber = -1
+	var obj []interface{}
+
+	if err := json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	if len(obj) < 1 {
+		return shared.NewInsufficientParamsError(len(obj), 1)
+	}
+
+	if err := blockHeight(obj[0], &args.BlockNumber); err != nil {
+		return err
+	}
+
+	return nil
+}
\ No newline at end of file

rpc/api/miner_js.go

+package api
+
+const Miner_JS = `
+web3.extend({
+	property: 'miner',
+	methods:
+	[
+		new web3.extend.Method({
+			name: 'start',
+			call: 'miner_start',
+			params: 1,
+			inputFormatter: [web3.extend.formatters.formatInputInt],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Method({
+			name: 'stop',
+			call: 'miner_stop',
+			params: 1,
+			inputFormatter: [web3.extend.formatters.formatInputInt],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Method({
+			name: 'getHashrate',
+			call: 'miner_hashrate',
+			params: 0,
+			inputFormatter: [],
+			outputFormatter: web3.extend.utils.toDecimal
+		}),
+		new web3.extend.Method({
+			name: 'setExtra',
+			call: 'miner_setExtra',
+			params: 1,
+			inputFormatter: [web3.extend.utils.formatInputString],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Method({
+			name: 'setGasPrice',
+			call: 'miner_setGasPrice',
+			params: 1,
+			inputFormatter: [web3.extend.utils.formatInputString],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Method({
+			name: 'startAutoDAG',
+			call: 'miner_startAutoDAG',
+			params: 0,
+			inputFormatter: [],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Method({
+			name: 'stopAutoDAG',
+			call: 'miner_stopAutoDAG',
+			params: 0,
+			inputFormatter: [],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Method({
+			name: 'makeDAG',
+			call: 'miner_makeDAG',
+			params: 1,
+			inputFormatter: [web3.extend.formatters.inputDefaultBlockNumberFormatter],
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		})
+	],
+	properties:
+	[
+		new web3.extend.Property({
+			name: 'hashrate',
+			getter: 'miner_hashrate',
+			outputFormatter: web3.extend.utils.toDecimal
+		})
+	]
+});
+`
\ No newline at end of file

rpc/api/utils.go

@@ -23,6 +23,8 @@ func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth.
 		switch strings.ToLower(strings.TrimSpace(name)) {
 		case EthApiName:
 			apis[i] = NewEthApi(xeth, codec)
+		case MinerApiName:
+			apis[i] = NewMinerApi(eth, codec)
 		case Web3ApiName:
 			apis[i] = NewWeb3(xeth, codec)
 		default:
@@ -32,3 +34,12 @@ func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth.
 
 	return apis, nil
 }
+
+func Javascript(name string) string {
+	switch strings.ToLower(strings.TrimSpace(name)) {
+	case MinerApiName:
+		return Miner_JS
+	}
+
+	return ""
+}