diff options
Diffstat (limited to 'node/errors.go')
-rw-r--r-- | node/errors.go | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/node/errors.go b/node/errors.go new file mode 100644 index 0000000..2e0dadc --- /dev/null +++ b/node/errors.go @@ -0,0 +1,63 @@ +// 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) +} |