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automatic DAG pregeneration for smooth epoch transitions

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- backend: AutoDAG bool flag passed from cli/eth.Config to ethereum, autoDAG loop started if true
- backend: autoDAG loop start/stop, remove previous DAG
- cli: AutoDAG bool flag, off by default, but automatically ON if mining
- admin jsre: add startAutoDAG stopAutoDAG and makeDAG in miner section
- switch on/off DAG autogeneration when miner started/stopped on console
This commit is contained in:
zelig
2015-05-20 16:56:17 +01:00
parent 90b672f1af
commit bed80133e0
4 changed files with 127 additions and 1 deletions
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32
cmd/geth/admin.go
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@ -8,6 +8,7 @@ import (
"strconv"
"time"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
@ -73,6 +74,9 @@ func (js *jsre) adminBindings() {
miner.Set("hashrate", js.hashrate)
miner.Set("setExtra", js.setExtra)
miner.Set("setGasPrice", js.setGasPrice)
miner.Set("startAutoDAG", js.startAutoDAG)
miner.Set("stopAutoDAG", js.stopAutoDAG)
miner.Set("makeDAG", js.makeDAG)
admin.Set("debug", struct{}{})
t, _ = admin.Get("debug")
@ -278,6 +282,30 @@ func (js *jsre) hashrate(otto.FunctionCall) otto.Value {
return js.re.ToVal(js.ethereum.Miner().HashRate())
}
func (js *jsre) makeDAG(call otto.FunctionCall) otto.Value {
blockNumber, err := call.Argument(1).ToInteger()
if err != nil {
fmt.Println(err)
return otto.FalseValue()
}
err = ethash.MakeDAG(uint64(blockNumber), "")
if err != nil {
return otto.FalseValue()
}
return otto.TrueValue()
}
func (js *jsre) startAutoDAG(otto.FunctionCall) otto.Value {
js.ethereum.StartAutoDAG()
return otto.TrueValue()
}
func (js *jsre) stopAutoDAG(otto.FunctionCall) otto.Value {
js.ethereum.StopAutoDAG()
return otto.TrueValue()
}
func (js *jsre) backtrace(call otto.FunctionCall) otto.Value {
tracestr, err := call.Argument(0).ToString()
if err != nil {
@ -316,6 +344,9 @@ func (js *jsre) startMining(call otto.FunctionCall) otto.Value {
threads = int64(js.ethereum.MinerThreads)
}
// switch on DAG autogeneration when miner starts
js.ethereum.StartAutoDAG()
err = js.ethereum.StartMining(int(threads))
if err != nil {
fmt.Println(err)
@ -327,6 +358,7 @@ func (js *jsre) startMining(call otto.FunctionCall) otto.Value {
func (js *jsre) stopMining(call otto.FunctionCall) otto.Value {
js.ethereum.StopMining()
js.ethereum.StopAutoDAG()
return otto.TrueValue()
}