mirror of
https://github.com/vmware-tanzu/velero.git
synced 2026-09-13 11:34:54 +00:00
101 lines
2.5 KiB
Go
101 lines
2.5 KiB
Go
/*
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Copyright The Velero Contributors.
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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 cbt
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import (
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"context"
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"github.com/cockroachdb/errors"
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"github.com/vmware-tanzu/velero/pkg/cbtservice"
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"github.com/vmware-tanzu/velero/pkg/uploader/cbt/types"
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)
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// SetBitmapOrFull translates the allocated/changed blocks from CBT service to the given bitmap or set the bitmap to full when error happens
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func SetBitmapOrFull(ctx context.Context, service cbtservice.Service, bitmap types.Bitmap, incOnly bool) (ret error) {
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setFull := false
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defer func() {
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bitmap.SetError(ret)
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if setFull {
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bitmap.SetFull()
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}
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}()
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if service == nil {
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setFull = true
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return errors.New("CBT service is absent, fallback to real full")
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}
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if bitmap.Snapshot() == "" {
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setFull = true
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return errors.New("invalid snapshot, fallback to real full")
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}
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if incOnly && bitmap.ChangeID() == "" {
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setFull = true
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return errors.New("invalid changeID, fallback to real full")
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}
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var changedErr error
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if bitmap.ChangeID() != "" {
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err := service.GetChangedBlocks(ctx, bitmap.Snapshot(), bitmap.ChangeID(), func(blocks []cbtservice.Range) error {
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for _, b := range blocks {
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bitmap.Set(b.Offset, b.Length)
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}
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return nil
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})
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if err == nil {
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return nil
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}
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if incOnly {
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setFull = true
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return errors.Wrap(err, "error getting changed blocks from CBT service, fallback to real full")
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}
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changedErr = err
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}
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err := service.GetAllocatedBlocks(ctx, bitmap.Snapshot(), func(blocks []cbtservice.Range) error {
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for _, b := range blocks {
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bitmap.Set(b.Offset, b.Length)
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}
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return nil
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})
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if err != nil {
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setFull = true
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if changedErr != nil {
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return errors.Wrap(err, "error getting both changed and allocated blocks from CBT service, fallback to real full")
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} else {
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return errors.Wrap(err, "error getting allocated blocks from CBT service, fallback to real full")
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}
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}
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if changedErr != nil {
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return errors.Wrap(changedErr, "error getting changed blocks from CBT service, fallback to full")
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}
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return nil
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}
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