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index: misc cleanups

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This commit is contained in:
Michael Eischer 2024-05-19 20:36:16 +02:00
parent 68fa0e0305
commit 72482ce5bd
2 changed files with 9 additions and 6 deletions
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2
internal/index/index_parallel.go
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@ -11,7 +11,7 @@ import (
// ForAllIndexes loads all index files in parallel and calls the given callback. // ForAllIndexes loads all index files in parallel and calls the given callback.
// It is guaranteed that the function is not run concurrently. If the callback // It is guaranteed that the function is not run concurrently. If the callback
// returns an error, this function is cancelled and also returns that error. // returns an error, this function is cancelled and also returns that error.
func ForAllIndexes(ctx context.Context, lister restic.Lister, repo restic.ListerLoaderUnpacked, func ForAllIndexes(ctx context.Context, lister restic.Lister, repo restic.LoaderUnpacked,
fn func(id restic.ID, index *Index, oldFormat bool, err error) error) error { fn func(id restic.ID, index *Index, oldFormat bool, err error) error) error {
// decoding an index can take quite some time such that this can be both CPU- or IO-bound // decoding an index can take quite some time such that this can be both CPU- or IO-bound

13
internal/index/master_index.go
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@ -23,12 +23,15 @@ type MasterIndex struct {
// NewMasterIndex creates a new master index. // NewMasterIndex creates a new master index.
func NewMasterIndex() *MasterIndex { func NewMasterIndex() *MasterIndex {
mi := &MasterIndex{pendingBlobs: restic.NewBlobSet()}
mi.clear()
return mi
}
func (mi *MasterIndex) clear() {
// Always add an empty final index, such that MergeFinalIndexes can merge into this. // Always add an empty final index, such that MergeFinalIndexes can merge into this.
// Note that removing this index could lead to a race condition in the rare mi.idx = []*Index{NewIndex()}
// situation that only two indexes exist which are saved and merged concurrently. mi.idx[0].Finalize()
idx := []*Index{NewIndex()}
idx[0].Finalize()
return &MasterIndex{idx: idx, pendingBlobs: restic.NewBlobSet()}
} }
func (mi *MasterIndex) MarkCompressed() { func (mi *MasterIndex) MarkCompressed() {