35 lines
793 B
Go
35 lines
793 B
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package storage
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import (
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"context"
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)
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// ListKeys returns keys starting from first and upto limit.
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// limit is capped to LookupLimit.
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func ListKeys(ctx context.Context, store KeyValueStore, first Key, limit int) (_ Keys, err error) {
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defer mon.Task()(&ctx)(&err)
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if limit <= 0 || limit > store.LookupLimit() {
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limit = store.LookupLimit()
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}
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keys := make(Keys, 0, limit)
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err = store.Iterate(ctx, IterateOptions{
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First: first,
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Recurse: true,
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}, func(ctx context.Context, it Iterator) error {
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var item ListItem
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for ; limit > 0 && it.Next(ctx, &item); limit-- {
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if item.Key == nil {
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panic("nil key")
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}
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keys = append(keys, CloneKey(item.Key))
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}
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return nil
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})
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return keys, err
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}
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