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https://github.com/ceph/ceph-csi.git
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62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
/*
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Copyright 2019 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"errors"
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"fmt"
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)
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var (
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// ErrKeyNotFound is returned when requested key in omap is not found.
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ErrKeyNotFound = errors.New("key not found")
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// ErrObjectExists is returned when named omap is already present in rados.
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ErrObjectExists = errors.New("object exists")
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// ErrObjectNotFound is returned when named omap is not found in rados.
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ErrObjectNotFound = errors.New("object not found")
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// ErrSnapNameConflict is generated when a requested CSI snap name already exists on RBD but with
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// different properties, and hence is in conflict with the passed in CSI volume name.
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ErrSnapNameConflict = errors.New("snapshot name conflict")
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// ErrPoolNotFound is returned when pool is not found.
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ErrPoolNotFound = errors.New("pool not found")
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)
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type errorPair struct {
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first error
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second error
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}
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func (e errorPair) Error() string {
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return fmt.Sprintf("%v: %v", e.first, e.second)
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}
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// Is checks if target error is wrapped in the first error.
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func (e errorPair) Is(target error) bool {
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return errors.Is(e.first, target)
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}
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// Unwrap returns the second error.
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func (e errorPair) Unwrap() error {
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return e.second
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}
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// JoinErrors combines two errors. Of the returned error, Is() follows the first
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// branch, Unwrap() follows the second branch.
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func JoinErrors(e1, e2 error) error {
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return errorPair{e1, e2}
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}
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