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authorobscuren <geffobscura@gmail.com>2015-02-06 00:29:41 +0800
committerobscuren <geffobscura@gmail.com>2015-02-06 01:13:02 +0800
commit9d2166a964d83c09481dea6ef30889f260249295 (patch)
tree3826f70ae465e956b0d1511be7776911dbadfcf1 /miner/miner.go
parent1d519854e2bfe8d5f2e8674f4f04ccf9aeaabe84 (diff)
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Diffstat (limited to 'miner/miner.go')
-rw-r--r--miner/miner.go42
1 files changed, 35 insertions, 7 deletions
diff --git a/miner/miner.go b/miner/miner.go
index 52dd5687d..8044ef073 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -24,21 +24,43 @@
package miner
import (
+ "fmt"
"math/big"
"sort"
- "github.com/ethereum/go-ethereum/eth"
- "github.com/ethereum/go-ethereum/ethutil"
- "github.com/ethereum/go-ethereum/pow"
- "github.com/ethereum/go-ethereum/pow/ezp"
- "github.com/ethereum/go-ethereum/state"
-
+ "github.com/ethereum/c-ethash/go-ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/crypto"
+ "github.com/ethereum/go-ethereum/eth"
+ "github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/logger"
+ "github.com/ethereum/go-ethereum/pow"
+ "github.com/ethereum/go-ethereum/state"
)
+var dx = []byte{0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42}
+var dy = []byte{0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43}
+
+const epochLen = uint64(1000)
+
+func getSeed(chainMan *core.ChainManager, block *types.Block) (x []byte, y []byte) {
+ if block.Number().Uint64() == 0 {
+ return dx, dy
+ } else if block.Number().Uint64()%epochLen == 0 {
+ x, y = getSeed(chainMan, chainMan.GetBlock(block.ParentHash()))
+ if (block.Number().Uint64()/epochLen)%2 > 0 {
+ y = crypto.Sha3(append(y, block.ParentHash()...))
+ } else {
+ x = crypto.Sha3(append(x, block.ParentHash()...))
+ }
+ return x, y
+ } else {
+ return getSeed(chainMan, chainMan.GetBlock(block.ParentHash()))
+ }
+}
+
type LocalTx struct {
To []byte `json:"to"`
Data []byte `json:"data"`
@@ -77,7 +99,6 @@ func New(coinbase []byte, eth *eth.Ethereum) *Miner {
return &Miner{
eth: eth,
powQuitCh: make(chan struct{}),
- pow: ezp.New(),
mining: false,
localTxs: make(map[int]*LocalTx),
MinAcceptedGasPrice: big.NewInt(10000000000000),
@@ -213,6 +234,13 @@ func (self *Miner) mine() {
minerlogger.Infof("Mining on block. Includes %v transactions", len(transactions))
+ x, y := getSeed(chainMan, block)
+ self.pow, err = ethash.New(append(x, y...), block)
+ if err != nil {
+ fmt.Println("err", err)
+ return
+ }
+
// Find a valid nonce
nonce := self.pow.Search(block, self.powQuitCh)
if nonce != nil {