use single account manager instead of creating new ones

src/gethdep.go

@@ -9,6 +9,10 @@ import (
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/eth"
+	"github.com/ethereum/go-ethereum/les"
+	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/crypto"
 	errextra "github.com/pkg/errors"
 )
@@ -24,11 +28,24 @@ func createAccount(password string) (string, string, error) {
 	if currentNode != nil {
 
 		w := true
-		keydir := datadir + "/testnet/keystore"
-		accman := accounts.NewManager(keydir, scryptN, scryptP, accountSync)
 
+		// Retrieve the AccountManager
+		var ethereum *eth.FullNodeService
+		var accountManager *accounts.Manager
+		if err := currentNode.Service(&ethereum); err == nil {
+			accountManager = ethereum.ApiBackend.AccountManager()
+		} else {
+			var ethereum *les.LightNodeService
+			if err := currentNode.Service(&ethereum); err == nil {
+				accountManager = ethereum.ApiBackend.AccountManager()
+			} else {
+				glog.V(logger.Warn).Infoln("cannot get account manager:", err)
+			}
+		}
+
+		if accountManager != nil {
 			// generate the account
-		account, err := accman.NewAccount(password, w)
+			account, err := accountManager.NewAccount(password, w)
 			if err != nil {
 				return "", "", errextra.Wrap(err, "Account manager could not create the account")
 			}
@@ -46,6 +63,8 @@ func createAccount(password string) (string, string, error) {
 			pubKey := common.ToHex(crypto.FromECDSAPub(&key.PrivateKey.PublicKey))
 
 			return address, pubKey, nil
+		}
+		return "", "", errors.New("Could not retrieve account manager")
 
 	}
 
@@ -60,19 +79,33 @@ func unlockAccount(address, password string, seconds int) error {
 
 	if currentNode != nil {
 
-		accman := utils.MakeAccountManager(c, accountSync)
-		account, err := utils.MakeAddress(accman, address)
+		// Retrieve the AccountManager
+		var ethereum *eth.FullNodeService
+		var accountManager *accounts.Manager
+		if err := currentNode.Service(&ethereum); err == nil {
+			accountManager = ethereum.ApiBackend.AccountManager()
+		} else {
+			var ethereum *les.LightNodeService
+			if err := currentNode.Service(&ethereum); err == nil {
+				accountManager = ethereum.ApiBackend.AccountManager()
+			} else {
+				glog.V(logger.Warn).Infoln("cannot get account manager:", err)
+			}
+		}
+
+		if accountManager != nil {
+			account, err := utils.MakeAddress(accountManager, address)
 			if err != nil {
 				return errextra.Wrap(err, "Could not retrieve account from address")
 			}
 
-		err = accman.TimedUnlock(account, password, time.Duration(seconds)*time.Second)
+			err = accountManager.TimedUnlock(account, password, time.Duration(seconds)*time.Second)
 			if err != nil {
 				return errextra.Wrap(err, "Could not decrypt account")
 			}
-
 			return nil
-
+		}
+		return errors.New("Could not retrieve account manager")
 	}
 
 	return errors.New("No running node detected for account unlock")

src/main.go

@@ -7,6 +7,9 @@ import (
 
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/accounts"
+	"github.com/ethereum/go-ethereum/eth"
+	"github.com/ethereum/go-ethereum/les"
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/node"
@@ -32,6 +35,7 @@ var (
 	currentNode    *node.Node         // currently running geth node
 	c              *cli.Context       // the CLI context used to start the geth node
 	accountSync    *[]node.Service    // the object used to sync accounts between geth services
+	accountManager *accounts.Manager  // the account manager attached to the currentNode
 	datadir        string             // data directory for geth
 )
 
@@ -49,6 +53,7 @@ func MakeNode(inputDir string) *node.Node {
 
 	// TODO remove admin rpcapi flag
 	set := flag.NewFlagSet("test", 0)
+	set.Bool("lightkdf", true, "Reduce key-derivation RAM & CPU usage at some expense of KDF strength")
 	set.Bool("shh", true, "whisper")
 	set.Bool("light", true, "disable eth")
 	set.Bool("testnet", true, "light test network")
@@ -72,6 +77,22 @@ func MakeNode(inputDir string) *node.Node {
 
 	utils.DebugSetup(c)
 	currentNode, accountSync = utils.MakeSystemNode(clientIdentifier, vString, rConfig, makeDefaultExtra(), c)
+
+    // Retrieve the AccountManager
+    // doesn't work because node not started yet ... maybe use some kind of event when node started
+    // and then get account managet and also signal the event to the app
+	var ethereum *eth.FullNodeService
+	if err := currentNode.Service(&ethereum); err == nil {
+		accountManager = ethereum.ApiBackend.AccountManager()
+	} else {
+		var ethereum *les.LightNodeService
+		if err := currentNode.Service(&ethereum); err == nil {
+			accountManager = ethereum.ApiBackend.AccountManager()
+		} else {
+			glog.V(logger.Warn).Infoln("cannot get account manager:", err)
+		}
+	}
+
 	return currentNode
 
 }