/
errors.go
50 lines (41 loc) · 1.33 KB
/
errors.go
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// Copyright 2018 The cpchain authors
// Copyright 2015 The go-ethereum Authors
package node
import (
"errors"
"fmt"
"reflect"
"syscall"
)
var (
ErrDatadirUsed = errors.New("datadir already used by another process")
ErrNodeStopped = errors.New("node not started")
ErrNodeRunning = errors.New("node already running")
ErrServiceUnknown = errors.New("unknown service")
datadirInUseErrnos = map[uint]bool{11: true, 32: true, 35: true}
)
func convertFileLockError(err error) error {
if errno, ok := err.(syscall.Errno); ok && datadirInUseErrnos[uint(errno)] {
return ErrDatadirUsed
}
return err
}
// DuplicateServiceError is returned during Node startup if a registered service
// constructor returns a service of the same type that was already started.
type DuplicateServiceError struct {
Kind reflect.Type
}
// Error generates a textual representation of the duplicate service error.
func (e *DuplicateServiceError) Error() string {
return fmt.Sprintf("duplicate service: %v", e.Kind)
}
// StopError is returned if a Node fails to stop either any of its registered
// services or itself.
type StopError struct {
Server error
Services map[reflect.Type]error
}
// Error generates a textual representation of the stop error.
func (e *StopError) Error() string {
return fmt.Sprintf("server: %v, services: %v", e.Server, e.Services)
}