diff options
Diffstat (limited to 'eth/backend.go')
| -rw-r--r-- | eth/backend.go | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/eth/backend.go b/eth/backend.go index a4f656ecd..6ce0d0eb0 100644 --- a/eth/backend.go +++ b/eth/backend.go @@ -26,7 +26,9 @@ import ( "math/big" "os" "path/filepath" + "regexp" "strings" + "syscall" "time" "github.com/ethereum/ethash" @@ -62,6 +64,9 @@ const ( var ( jsonlogger = logger.NewJsonLogger() + datadirInUseErrNos = []uint{11, 32, 35} + portInUseErrRE = regexp.MustCompile("address already in use") + defaultBootNodes = []*discover.Node{ // ETH/DEV Go Bootnodes discover.MustParseNode("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303"), // IE @@ -282,6 +287,17 @@ 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 { + 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) } if db, ok := chainDb.(*ethdb.LDBDatabase); ok { @@ -296,6 +312,16 @@ 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 { + 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) } if db, ok := dappDb.(*ethdb.LDBDatabase); ok { @@ -553,6 +579,9 @@ func (s *Ethereum) Start() error { }) err := s.net.Start() if err != nil { + if portInUseErrRE.MatchString(err.Error()) { + err = fmt.Errorf("%v (possibly another instance of geth is using the same port)", err) + } return err } |