forked from TrueCloudLab/frostfs-node
71 lines
1 KiB
Go
71 lines
1 KiB
Go
package rangehashsvc
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import (
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"context"
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"hash"
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"sync"
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"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
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"github.com/nspcc-dev/tzhash/tz"
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)
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type onceHashWriter struct {
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once *sync.Once
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traverser *placement.Traverser
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resp *Response
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cancel context.CancelFunc
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}
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type hasher interface {
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add([]byte)
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sum() ([]byte, error)
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}
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type tzHasher struct {
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hashes [][]byte
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}
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type commonHasher struct {
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h hash.Hash
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}
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type singleHasher struct {
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hash []byte
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}
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func (h *singleHasher) add(p []byte) {
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h.hash = p
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}
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func (h *singleHasher) sum() ([]byte, error) {
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return h.hash, nil
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}
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func (w *onceHashWriter) write(hs [][]byte) {
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w.once.Do(func() {
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w.resp.hashes = hs
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w.traverser.SubmitSuccess()
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w.cancel()
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})
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}
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func (h *tzHasher) add(p []byte) {
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h.hashes = append(h.hashes, p)
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return
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}
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func (h *tzHasher) sum() ([]byte, error) {
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return tz.Concat(h.hashes)
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}
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func (h *commonHasher) add(p []byte) {
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h.h.Write(p)
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}
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func (h *commonHasher) sum() ([]byte, error) {
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return h.h.Sum(nil), nil
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}
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