Merge pull request #2354 from karalabe/miner-atomic-pending

eth, miner: fetch pending block/state in on go (data race)

2 files changed, 6 insertions, 15 deletions

diff --git a/miner/miner.go b/miner/miner.go
index 6d4a84f1a..e52cefaab 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -164,12 +164,9 @@ func (self *Miner) SetExtra(extra []byte) error {
 	return nil
 }
 
-func (self *Miner) PendingState() *state.StateDB {
-	return self.worker.pendingState()
-}
-
-func (self *Miner) PendingBlock() *types.Block {
-	return self.worker.pendingBlock()
+// Pending returns the currently pending block and associated state.
+func (self *Miner) Pending() (*types.Block, *state.StateDB) {
+	return self.worker.pending()
 }
 
 func (self *Miner) SetEtherbase(addr common.Address) {
diff --git a/miner/worker.go b/miner/worker.go
index f3e95cb5f..108b2d6b5 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -152,13 +152,7 @@ func (self *worker) setEtherbase(addr common.Address) {
 	self.coinbase = addr
 }
 
-func (self *worker) pendingState() *state.StateDB {
-	self.currentMu.Lock()
-	defer self.currentMu.Unlock()
-	return self.current.state
-}
-
-func (self *worker) pendingBlock() *types.Block {
+func (self *worker) pending() (*types.Block, *state.StateDB) {
 	self.currentMu.Lock()
 	defer self.currentMu.Unlock()
 
@@ -168,9 +162,9 @@ func (self *worker) pendingBlock() *types.Block {
 			self.current.txs,
 			nil,
 			self.current.receipts,
-		)
+		), self.current.state
 	}
-	return self.current.Block
+	return self.current.Block, self.current.state
 }
 
 func (self *worker) start() {