Merge remote-tracking branch 'upstream/develop' into evmjit

2 files changed, 20 insertions, 11 deletions

diff --git a/pow/block.go b/pow/block.go
index 62df2b5ff..31e194d8d 100644
--- a/pow/block.go
+++ b/pow/block.go
@@ -6,4 +6,5 @@ type Block interface {
 	Difficulty() *big.Int
 	HashNoNonce() []byte
 	N() []byte
+	Number() *big.Int
 }
diff --git a/pow/ezp/pow.go b/pow/ezp/pow.go
index e4caa076a..540381243 100644
--- a/pow/ezp/pow.go
+++ b/pow/ezp/pow.go
@@ -36,26 +36,34 @@ func (pow *EasyPow) Search(block pow.Block, stop <-chan struct{}) []byte {
 	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	hash := block.HashNoNonce()
 	diff := block.Difficulty()
-	i := int64(0)
+	//i := int64(0)
+	// TODO fix offset
+	i := rand.Int63()
+	starti := i
 	start := time.Now().UnixNano()
-	t := time.Now()
+
+	defer func() { pow.HashRate = 0 }()
+
+	// Make sure stop is empty
+empty:
+	for {
+		select {
+		case <-stop:
+		default:
+			break empty
+		}
+	}
 
 	for {
 		select {
 		case <-stop:
-			powlogger.Infoln("Breaking from mining")
-			pow.HashRate = 0
 			return nil
 		default:
 			i++
 
-			if time.Since(t) > (1 * time.Second) {
-				elapsed := time.Now().UnixNano() - start
-				hashes := ((float64(1e9) / float64(elapsed)) * float64(i)) / 1000
-				pow.HashRate = int64(hashes)
-
-				t = time.Now()
-			}
+			elapsed := time.Now().UnixNano() - start
+			hashes := ((float64(1e9) / float64(elapsed)) * float64(i-starti)) / 1000
+			pow.HashRate = int64(hashes)
 
 			sha := crypto.Sha3(big.NewInt(r.Int63()).Bytes())
 			if verify(hash, diff, sha) {