// Copyright 2015 The go-ethereum Authors // This file is part of the go-ethereum library. // // The go-ethereum library is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // The go-ethereum library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 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) }