Basic structure miner

miner/agent.go

@@ -0,0 +1,74 @@
+package miner
+
+import (
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/pow"
+)
+
+type CpuMiner struct {
+	c             chan *types.Block
+	quit          chan struct{}
+	quitCurrentOp chan struct{}
+	returnCh      chan<- []byte
+
+	index int
+	pow   pow.PoW
+}
+
+func NewCpuMiner(index int, pow pow.PoW) *CpuMiner {
+	miner := &CpuMiner{
+		c:             make(chan *types.Block, 1),
+		quit:          make(chan struct{}),
+		quitCurrentOp: make(chan struct{}, 1),
+		pow:           pow,
+		index:         index,
+	}
+	go miner.update()
+
+	return miner
+}
+
+func (self *CpuMiner) Work() chan<- *types.Block   { return self.c }
+func (self *CpuMiner) Pow() pow.PoW                { return self.pow }
+func (self *CpuMiner) SetNonceCh(ch chan<- []byte) { self.returnCh = ch }
+
+func (self *CpuMiner) Stop() {
+	close(self.quit)
+	close(self.quitCurrentOp)
+}
+
+func (self *CpuMiner) update() {
+out:
+	for {
+		select {
+		case block := <-self.c:
+			minerlogger.Infof("miner[%d] got block\n", self.index)
+			// make sure it's open
+			self.quitCurrentOp <- struct{}{}
+
+			go self.mine(block)
+		case <-self.quit:
+			break out
+		}
+	}
+
+done:
+	// Empty channel
+	for {
+		select {
+		case <-self.c:
+		default:
+			close(self.c)
+
+			break done
+		}
+	}
+}
+
+func (self *CpuMiner) mine(block *types.Block) {
+	minerlogger.Infof("started agent[%d]. mining...\n", self.index)
+	nonce := self.pow.Search(block, self.quitCurrentOp)
+	if nonce != nil {
+		self.returnCh <- nonce
+	}
+}