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-rw-r--r--eth/backend.go21
1 files changed, 3 insertions, 18 deletions
diff --git a/eth/backend.go b/eth/backend.go
index 9eb211e31..761a17a8f 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -65,7 +65,7 @@ const (
var (
jsonlogger = logger.NewJsonLogger()
- datadirInUseErrNos = []uint{11, 32, 35}
+ datadirInUseErrnos = map[uint]bool{11: true, 32: true, 35: true}
portInUseErrRE = regexp.MustCompile("address already in use")
defaultBootNodes = []*discover.Node{
@@ -286,15 +286,7 @@ func New(config *Config) (*Ethereum, error) {
// Open the chain database and perform any upgrades needed
chainDb, err := newdb(filepath.Join(config.DataDir, "chaindata"))
if err != nil {
- var ok bool
- errno := uint(err.(syscall.Errno))
- for _, no := range datadirInUseErrNos {
- if errno == no {
- ok = true
- break
- }
- }
- if ok {
+ if errno, ok := err.(syscall.Errno); ok && datadirInUseErrnos[uint(errno)] {
err = fmt.Errorf("%v (check if another instance of geth is already running with the same data directory '%s')", err, config.DataDir)
}
return nil, fmt.Errorf("blockchain db err: %v", err)
@@ -311,14 +303,7 @@ func New(config *Config) (*Ethereum, error) {
dappDb, err := newdb(filepath.Join(config.DataDir, "dapp"))
if err != nil {
- var ok bool
- for _, no := range datadirInUseErrNos {
- if uint(err.(syscall.Errno)) == no {
- ok = true
- break
- }
- }
- if ok {
+ if errno, ok := err.(syscall.Errno); ok && datadirInUseErrnos[uint(errno)] {
err = fmt.Errorf("%v (check if another instance of geth is already running with the same data directory '%s')", err, config.DataDir)
}
return nil, fmt.Errorf("dapp db err: %v", err)