node: Use Context
in Blobovniczas.Iterate()
#403
10 changed files with 41 additions and 25 deletions
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@ -1,6 +1,7 @@
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package blobovnicza
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import (
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"context"
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"fmt"
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"io"
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@ -33,6 +34,6 @@ func listFunc(cmd *cobra.Command, _ []string) {
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blz := openBlobovnicza(cmd)
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defer blz.Close()
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err := blobovnicza.IterateAddresses(blz, wAddr)
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err := blobovnicza.IterateAddresses(context.Background(), blz, wAddr)
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common.ExitOnErr(cmd, common.Errf("blobovnicza iterator failure: %w", err))
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}
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@ -1,6 +1,7 @@
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package blobovnicza
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import (
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"context"
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"fmt"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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@ -117,12 +118,17 @@ type IterateRes struct {
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// Returns handler's errors directly. Returns nil after iterating finish.
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//
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// Handler should not retain object data. Handler must not be nil.
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func (b *Blobovnicza) Iterate(prm IteratePrm) (IterateRes, error) {
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func (b *Blobovnicza) Iterate(ctx context.Context, prm IteratePrm) (IterateRes, error) {
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var elem IterationElement
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if err := b.boltDB.View(func(tx *bbolt.Tx) error {
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return tx.ForEach(func(name []byte, buck *bbolt.Bucket) error {
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return buck.ForEach(func(k, v []byte) error {
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select {
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case <-ctx.Done():
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return ctx.Err()
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default:
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}
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if prm.decodeAddresses {
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if err := addressFromKey(&elem.addr, k); err != nil {
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if prm.ignoreErrors {
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@ -147,7 +153,7 @@ func (b *Blobovnicza) Iterate(prm IteratePrm) (IterateRes, error) {
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}
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// IterateAddresses is a helper function which iterates over Blobovnicza and passes addresses of the objects to f.
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func IterateAddresses(blz *Blobovnicza, f func(oid.Address) error) error {
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func IterateAddresses(ctx context.Context, blz *Blobovnicza, f func(oid.Address) error) error {
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var prm IteratePrm
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prm.DecodeAddresses()
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@ -157,7 +163,7 @@ func IterateAddresses(blz *Blobovnicza, f func(oid.Address) error) error {
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return f(elem.Address())
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})
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_, err := blz.Iterate(prm)
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_, err := blz.Iterate(ctx, prm)
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return err
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}
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@ -1,6 +1,7 @@
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package blobovnicza
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import (
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"context"
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"errors"
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"path/filepath"
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"testing"
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@ -33,22 +34,22 @@ func TestBlobovniczaIterate(t *testing.T) {
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return nil
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}
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_, err = b.Iterate(IteratePrm{handler: inc})
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_, err = b.Iterate(context.Background(), IteratePrm{handler: inc})
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require.NoError(t, err)
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require.ElementsMatch(t, seen, data)
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seen = seen[:0]
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_, err = b.Iterate(IteratePrm{handler: inc, decodeAddresses: true})
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_, err = b.Iterate(context.Background(), IteratePrm{handler: inc, decodeAddresses: true})
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require.Error(t, err)
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seen = seen[:0]
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_, err = b.Iterate(IteratePrm{handler: inc, decodeAddresses: true, ignoreErrors: true})
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_, err = b.Iterate(context.Background(), IteratePrm{handler: inc, decodeAddresses: true, ignoreErrors: true})
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require.NoError(t, err)
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require.ElementsMatch(t, seen, data[:1])
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seen = seen[:0]
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expectedErr := errors.New("stop iteration")
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_, err = b.Iterate(IteratePrm{
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_, err = b.Iterate(context.Background(), IteratePrm{
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decodeAddresses: true,
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handler: func(IterationElement) error { return expectedErr },
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ignoreErrors: true,
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@ -1,6 +1,7 @@
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package blobovniczatree
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import (
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"context"
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"fmt"
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"path/filepath"
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@ -26,7 +27,7 @@ func (b *Blobovniczas) Init() error {
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return nil
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}
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return b.iterateLeaves(func(p string) (bool, error) {
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return b.iterateLeaves(context.TODO(), func(p string) (bool, error) {
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blz, err := b.openBlobovniczaNoCache(p)
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if err != nil {
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return true, err
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@ -48,7 +48,7 @@ func (b *Blobovniczas) Delete(ctx context.Context, prm common.DeletePrm) (res co
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activeCache := make(map[string]struct{})
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objectFound := false
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err = b.iterateSortedLeaves(&prm.Address, func(p string) (bool, error) {
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err = b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
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dirPath := filepath.Dir(p)
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// don't process active blobovnicza of the level twice
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@ -40,7 +40,7 @@ func (b *Blobovniczas) Exists(ctx context.Context, prm common.ExistsPrm) (common
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gPrm.SetAddress(prm.Address)
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var found bool
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err := b.iterateSortedLeaves(&prm.Address, func(p string) (bool, error) {
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err := b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
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dirPath := filepath.Dir(p)
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_, ok := activeCache[dirPath]
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@ -46,7 +46,7 @@ func (b *Blobovniczas) Get(ctx context.Context, prm common.GetPrm) (res common.G
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activeCache := make(map[string]struct{})
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err = b.iterateSortedLeaves(&prm.Address, func(p string) (bool, error) {
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err = b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
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dirPath := filepath.Dir(p)
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_, ok := activeCache[dirPath]
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@ -46,7 +46,7 @@ func (b *Blobovniczas) GetRange(ctx context.Context, prm common.GetRangePrm) (re
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activeCache := make(map[string]struct{})
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objectFound := false
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err = b.iterateSortedLeaves(&prm.Address, func(p string) (bool, error) {
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err = b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
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dirPath := filepath.Dir(p)
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_, ok := activeCache[dirPath]
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@ -12,8 +12,8 @@ import (
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)
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// Iterate iterates over all objects in b.
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func (b *Blobovniczas) Iterate(_ context.Context, prm common.IteratePrm) (common.IterateRes, error) {
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return common.IterateRes{}, b.iterateBlobovniczas(prm.IgnoreErrors, func(p string, blz *blobovnicza.Blobovnicza) error {
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func (b *Blobovniczas) Iterate(ctx context.Context, prm common.IteratePrm) (common.IterateRes, error) {
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return common.IterateRes{}, b.iterateBlobovniczas(ctx, prm.IgnoreErrors, func(p string, blz *blobovnicza.Blobovnicza) error {
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var subPrm blobovnicza.IteratePrm
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subPrm.SetHandler(func(elem blobovnicza.IterationElement) error {
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data, err := b.compression.Decompress(elem.ObjectData())
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@ -40,14 +40,14 @@ func (b *Blobovniczas) Iterate(_ context.Context, prm common.IteratePrm) (common
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})
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subPrm.DecodeAddresses()
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_, err := blz.Iterate(subPrm)
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_, err := blz.Iterate(ctx, subPrm)
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return err
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})
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}
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// iterator over all Blobovniczas in unsorted order. Break on f's error return.
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func (b *Blobovniczas) iterateBlobovniczas(ignoreErrors bool, f func(string, *blobovnicza.Blobovnicza) error) error {
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return b.iterateLeaves(func(p string) (bool, error) {
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func (b *Blobovniczas) iterateBlobovniczas(ctx context.Context, ignoreErrors bool, f func(string, *blobovnicza.Blobovnicza) error) error {
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return b.iterateLeaves(ctx, func(p string) (bool, error) {
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blz, err := b.openBlobovnicza(p)
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if err != nil {
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if ignoreErrors {
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@ -63,8 +63,9 @@ func (b *Blobovniczas) iterateBlobovniczas(ignoreErrors bool, f func(string, *bl
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}
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// iterator over the paths of Blobovniczas sorted by weight.
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func (b *Blobovniczas) iterateSortedLeaves(addr *oid.Address, f func(string) (bool, error)) error {
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func (b *Blobovniczas) iterateSortedLeaves(ctx context.Context, addr *oid.Address, f func(string) (bool, error)) error {
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_, err := b.iterateSorted(
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ctx,
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addr,
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make([]string, 0, b.blzShallowDepth),
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b.blzShallowDepth,
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@ -75,13 +76,14 @@ func (b *Blobovniczas) iterateSortedLeaves(addr *oid.Address, f func(string) (bo
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}
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// iterator over directories with Blobovniczas sorted by weight.
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func (b *Blobovniczas) iterateDeepest(addr oid.Address, f func(string) (bool, error)) error {
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func (b *Blobovniczas) iterateDeepest(ctx context.Context, addr oid.Address, f func(string) (bool, error)) error {
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depth := b.blzShallowDepth
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if depth > 0 {
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depth--
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}
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_, err := b.iterateSorted(
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ctx,
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&addr,
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make([]string, 0, depth),
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depth,
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@ -92,7 +94,7 @@ func (b *Blobovniczas) iterateDeepest(addr oid.Address, f func(string) (bool, er
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}
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// iterator over particular level of directories.
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func (b *Blobovniczas) iterateSorted(addr *oid.Address, curPath []string, execDepth uint64, f func([]string) (bool, error)) (bool, error) {
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func (b *Blobovniczas) iterateSorted(ctx context.Context, addr *oid.Address, curPath []string, execDepth uint64, f func([]string) (bool, error)) (bool, error) {
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indices := indexSlice(b.blzShallowWidth)
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hrw.SortSliceByValue(indices, addressHash(addr, filepath.Join(curPath...)))
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@ -100,6 +102,11 @@ func (b *Blobovniczas) iterateSorted(addr *oid.Address, curPath []string, execDe
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exec := uint64(len(curPath)) == execDepth
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for i := range indices {
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select {
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case <-ctx.Done():
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return false, ctx.Err()
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default:
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}
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if i == 0 {
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curPath = append(curPath, u64ToHexString(indices[i]))
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} else {
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@ -112,7 +119,7 @@ func (b *Blobovniczas) iterateSorted(addr *oid.Address, curPath []string, execDe
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} else if stop {
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return true, nil
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}
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} else if stop, err := b.iterateSorted(addr, curPath, execDepth, f); err != nil {
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} else if stop, err := b.iterateSorted(ctx, addr, curPath, execDepth, f); err != nil {
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return false, err
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} else if stop {
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return true, nil
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@ -123,8 +130,8 @@ func (b *Blobovniczas) iterateSorted(addr *oid.Address, curPath []string, execDe
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}
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// iterator over the paths of Blobovniczas in random order.
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func (b *Blobovniczas) iterateLeaves(f func(string) (bool, error)) error {
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return b.iterateSortedLeaves(nil, f)
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func (b *Blobovniczas) iterateLeaves(ctx context.Context, f func(string) (bool, error)) error {
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return b.iterateSortedLeaves(ctx, nil, f)
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}
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// makes slice of uint64 values from 0 to number-1.
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@ -45,7 +45,7 @@ func (b *Blobovniczas) Put(ctx context.Context, prm common.PutPrm) (common.PutRe
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PutPrm: putPrm,
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}
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if err := b.iterateDeepest(prm.Address, it.iterate); err != nil {
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if err := b.iterateDeepest(ctx, prm.Address, it.iterate); err != nil {
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return common.PutRes{}, err
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} else if it.ID == nil {
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if it.AllFull {
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