all: move common.Database to package ethdb

miner/agent.go

@@ -19,11 +19,12 @@ package miner
 import (
 	"sync"
 
+	"sync/atomic"
+
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/pow"
-	"sync/atomic"
 )
 
 type CpuAgent struct {
@@ -63,7 +64,7 @@ func (self *CpuAgent) Stop() {
 func (self *CpuAgent) Start() {
 	self.mu.Lock()
 	defer self.mu.Unlock()
-	
+
 	if !atomic.CompareAndSwapInt32(&self.isMining, 0, 1) {
 		return // agent already started
 	}

miner/worker.go

@@ -29,6 +29,7 @@ import (
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/logger/glog"
@@ -100,7 +101,7 @@ type worker struct {
 	eth     core.Backend
 	chain   *core.ChainManager
 	proc    *core.BlockProcessor
-	chainDb common.Database
+	chainDb ethdb.Database
 
 	coinbase common.Address
 	gasPrice *big.Int