indexbs

package

v0.0.1-alpha.2 Latest Latest Go to latest Published: Nov 6, 2023 License: Apache-2.0, MIT Imports: 13 Imported by: 0

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Repository

github.com/Bidon15/dagstore

Documentation ¶

Index ¶

Constants
Variables
func NewIndexBackedBlockstore(ctx context.Context, d IdxBstoreDagstore, shardSelector ShardSelectorF, ...) (blockstore.Blockstore, error)
type BlockstoreOp
- func (o BlockstoreOp) String() string
type IdxBstoreDagstore
type IdxBstoreDagstoreFromDagstore
- func (d *IdxBstoreDagstoreFromDagstore) ShardsContainingCid(ctx context.Context, c cid.Cid) ([]shard.Key, error)
type IndexBackedBlockstore
type ShardSelectorF

Constants ¶

View Source

const (
	BlockstoreOpGet     = true
	BlockstoreOpGetSize = !BlockstoreOpGet
)

Variables ¶

View Source

var ErrBlockNotFound = errors.New("block not found")

View Source

var ErrNoShardSelected = errors.New("no shard selected")

ErrNoShardSelected means that the shard selection function rejected all of the given shards.

Functions ¶

func NewIndexBackedBlockstore ¶

func NewIndexBackedBlockstore(ctx context.Context, d IdxBstoreDagstore, shardSelector ShardSelectorF, maxCacheSize int, cacheExpire time.Duration) (blockstore.Blockstore, error)

Types ¶

type BlockstoreOp ¶

type BlockstoreOp bool

func (BlockstoreOp) String ¶

func (o BlockstoreOp) String() string

type IdxBstoreDagstore ¶

type IdxBstoreDagstore interface {
	ShardsContainingCid(ctx context.Context, c cid.Cid) ([]shard.Key, error)
	AcquireShard(ctx context.Context, key shard.Key, out chan dagstore.ShardResult, _ dagstore.AcquireOpts) error
}

type IdxBstoreDagstoreFromDagstore ¶

type IdxBstoreDagstoreFromDagstore struct {
	dagstore.Interface
}

func (*IdxBstoreDagstoreFromDagstore) ShardsContainingCid ¶

func (d *IdxBstoreDagstoreFromDagstore) ShardsContainingCid(ctx context.Context, c cid.Cid) ([]shard.Key, error)

type IndexBackedBlockstore ¶

type IndexBackedBlockstore struct {
	// contains filtered or unexported fields
}

IndexBackedBlockstore is a read only blockstore over all cids across all shards in the dagstore.

func (*IndexBackedBlockstore) AllKeysChan ¶

func (ro *IndexBackedBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error)

func (*IndexBackedBlockstore) DeleteBlock ¶

func (ro *IndexBackedBlockstore) DeleteBlock(context.Context, cid.Cid) error

--- UNSUPPORTED BLOCKSTORE METHODS -------

func (*IndexBackedBlockstore) Get ¶

func (ro *IndexBackedBlockstore) Get(ctx context.Context, c cid.Cid) (blocks.Block, error)

func (*IndexBackedBlockstore) GetSize ¶

func (ro *IndexBackedBlockstore) GetSize(ctx context.Context, c cid.Cid) (int, error)

func (*IndexBackedBlockstore) Has ¶

func (ro *IndexBackedBlockstore) Has(ctx context.Context, c cid.Cid) (bool, error)

func (*IndexBackedBlockstore) HashOnRead ¶

func (ro *IndexBackedBlockstore) HashOnRead(_ bool)

func (*IndexBackedBlockstore) Put ¶

func (ro *IndexBackedBlockstore) Put(context.Context, blocks.Block) error

func (*IndexBackedBlockstore) PutMany ¶

func (ro *IndexBackedBlockstore) PutMany(context.Context, []blocks.Block) error

type ShardSelectorF ¶

type ShardSelectorF func(c cid.Cid, shards []shard.Key) (shard.Key, error)

ShardSelectorF helps select a shard to fetch a cid from if the given cid is present in multiple shards. It should return `ErrNoShardSelected` if none of the given shard is selected.

Source Files ¶

View all Source files

indexbacked_bs.go

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