reserve

package
v2.2.0-rc7 Latest Latest
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 Go to latest Published: Sep 9, 2024 License: BSD-3-Clause Imports: 19 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func RemoveChunkWithItem added in v2.1.0 

func RemoveChunkWithItem(
	ctx context.Context,
	trx transaction.Store,
	item *BatchRadiusItem,
) error

Types

type BatchRadiusItem 

type BatchRadiusItem struct {
	Bin       uint8
	BatchID   []byte
	StampHash []byte
	Address   swarm.Address
	BinID     uint64
}

BatchRadiusItem allows iteration of the chunks with respect to bin and batchID. Used for batch evictions of certain bins.

func (*BatchRadiusItem) Clone 

func (b *BatchRadiusItem) Clone() storage.Item

func (*BatchRadiusItem) ID 

func (b *BatchRadiusItem) ID() string

batchID/bin/ChunkAddr/stampHash

func (*BatchRadiusItem) Marshal 

func (b *BatchRadiusItem) Marshal() ([]byte, error)

func (*BatchRadiusItem) Namespace 

func (b *BatchRadiusItem) Namespace() string

func (*BatchRadiusItem) String 

func (b *BatchRadiusItem) String() string

func (*BatchRadiusItem) Unmarshal 

func (b *BatchRadiusItem) Unmarshal(buf []byte) error

type BatchRadiusItemV1 added in v2.2.0 

type BatchRadiusItemV1 struct {
	Bin     uint8
	BatchID []byte
	Address swarm.Address
	BinID   uint64
}

BatchRadiusItemV1 allows iteration of the chunks with respect to bin and batchID. Used for batch evictions of certain bins.

func (*BatchRadiusItemV1) Clone added in v2.2.0 

func (b *BatchRadiusItemV1) Clone() storage.Item

func (*BatchRadiusItemV1) ID added in v2.2.0 

func (b *BatchRadiusItemV1) ID() string

func (*BatchRadiusItemV1) Marshal added in v2.2.0 

func (b *BatchRadiusItemV1) Marshal() ([]byte, error)

func (*BatchRadiusItemV1) Namespace added in v2.2.0 

func (b *BatchRadiusItemV1) Namespace() string

func (*BatchRadiusItemV1) String added in v2.2.0 

func (b *BatchRadiusItemV1) String() string

func (*BatchRadiusItemV1) Unmarshal added in v2.2.0 

func (b *BatchRadiusItemV1) Unmarshal(buf []byte) error

type BinItem 

type BinItem struct {
	Bin   uint8
	BinID uint64
}

BinItem stores the latest binIDs for each bin between 0 and swarm.MaxBins

func (*BinItem) Clone 

func (b *BinItem) Clone() storage.Item

func (*BinItem) ID 

func (b *BinItem) ID() string

func (*BinItem) Marshal 

func (c *BinItem) Marshal() ([]byte, error)

func (*BinItem) Namespace 

func (b *BinItem) Namespace() string

func (*BinItem) String 

func (c *BinItem) String() string

func (*BinItem) Unmarshal 

func (c *BinItem) Unmarshal(buf []byte) error

type ChunkBinItem 

type ChunkBinItem struct {
	Bin       uint8
	BinID     uint64
	Address   swarm.Address
	BatchID   []byte
	StampHash []byte
	ChunkType swarm.ChunkType
}

ChunkBinItem allows for iterating on ranges of bin and binIDs for chunks. BinIDs come in handy when syncing the reserve contents with other peers.

func (*ChunkBinItem) Clone 

func (c *ChunkBinItem) Clone() storage.Item

func (*ChunkBinItem) ID 

func (c *ChunkBinItem) ID() string

bin/binID

func (*ChunkBinItem) Marshal 

func (c *ChunkBinItem) Marshal() ([]byte, error)

func (*ChunkBinItem) Namespace 

func (c *ChunkBinItem) Namespace() string

func (*ChunkBinItem) String 

func (c *ChunkBinItem) String() string

func (*ChunkBinItem) Unmarshal 

func (c *ChunkBinItem) Unmarshal(buf []byte) error

type ChunkBinItemV1 added in v2.2.0 

type ChunkBinItemV1 struct {
	Bin       uint8
	BinID     uint64
	Address   swarm.Address
	BatchID   []byte
	ChunkType swarm.ChunkType
}

ChunkBinItemV1 allows for iterating on ranges of bin and binIDs for chunks. BinIDs come in handy when syncing the reserve contents with other peers.

func (*ChunkBinItemV1) Clone added in v2.2.0 

func (c *ChunkBinItemV1) Clone() storage.Item

func (*ChunkBinItemV1) ID added in v2.2.0 

func (c *ChunkBinItemV1) ID() string

func (*ChunkBinItemV1) Marshal added in v2.2.0 

func (c *ChunkBinItemV1) Marshal() ([]byte, error)

func (*ChunkBinItemV1) Namespace added in v2.2.0 

func (c *ChunkBinItemV1) Namespace() string

func (*ChunkBinItemV1) String added in v2.2.0 

func (c *ChunkBinItemV1) String() string

func (*ChunkBinItemV1) Unmarshal added in v2.2.0 

func (c *ChunkBinItemV1) Unmarshal(buf []byte) error

type EpochItem 

type EpochItem struct {
	Timestamp uint64
}

EpochItem stores the timestamp in seconds of the initial creation of the reserve.

func (*EpochItem) Clone 

func (e *EpochItem) Clone() storage.Item

func (*EpochItem) ID 

func (e *EpochItem) ID() string

func (*EpochItem) Marshal 

func (e *EpochItem) Marshal() ([]byte, error)

func (*EpochItem) Namespace 

func (e *EpochItem) Namespace() string

func (*EpochItem) String 

func (e *EpochItem) String() string

func (*EpochItem) Unmarshal 

func (e *EpochItem) Unmarshal(buf []byte) error

type Reserve 

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

func New 

func New(
	baseAddr swarm.Address,
	st transaction.Storage,
	capacity int,
	radiusSetter topology.SetStorageRadiuser,
	logger log.Logger,
) (*Reserve, error)

func (*Reserve) Capacity 

func (r *Reserve) Capacity() int

func (*Reserve) EvictBatchBin 

func (r *Reserve) EvictBatchBin(
	ctx context.Context,
	batchID []byte,
	count int,
	bin uint8,
) (int, error)

EvictBatchBin evicts all chunks from bins upto the bin provided.

func (*Reserve) EvictionTarget 

func (r *Reserve) EvictionTarget() int

func (*Reserve) Get 

func (r *Reserve) Get(ctx context.Context, addr swarm.Address, batchID []byte, stampHash []byte) (swarm.Chunk, error)

func (*Reserve) Has 

func (r *Reserve) Has(addr swarm.Address, batchID []byte, stampHash []byte) (bool, error)

func (*Reserve) IncBinID 

func (r *Reserve) IncBinID(store storage.IndexStore, bin uint8) (uint64, error)

func (*Reserve) IsWithinCapacity 

func (r *Reserve) IsWithinCapacity() bool

func (*Reserve) IterateBin 

func (r *Reserve) IterateBin(bin uint8, startBinID uint64, cb func(swarm.Address, uint64, []byte, []byte) (bool, error)) error

func (*Reserve) IterateChunks 

func (r *Reserve) IterateChunks(startBin uint8, cb func(swarm.Chunk) (bool, error)) error

func (*Reserve) IterateChunksItems 

func (r *Reserve) IterateChunksItems(startBin uint8, cb func(*ChunkBinItem) (bool, error)) error

func (*Reserve) LastBinIDs 

func (r *Reserve) LastBinIDs() ([]uint64, uint64, error)

func (*Reserve) Put 

func (r *Reserve) Put(ctx context.Context, chunk swarm.Chunk) error

Reserve Put has to handle multiple possible scenarios.

  1. Since the same chunk may belong to different postage batches, the reserve will support one chunk to many postage batches relationship.
  2. A new chunk that shares the same stamp index belonging to the same batch with an already stored chunk will overwrite the existing chunk if the new chunk has a higher stamp timestamp (regardless of batch type).
  3. A new chunk that has the same address belonging to the same batch with an already stored chunk will overwrite the existing chunk if the new chunk has a higher stamp timestamp (regardless of batch type and chunk type, eg CAC & SOC).

func (*Reserve) Radius 

func (r *Reserve) Radius() uint8

func (*Reserve) SetRadius 

func (r *Reserve) SetRadius(rad uint8) error

func (*Reserve) Size 

func (r *Reserve) Size() int

Source Files

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