getters

package
v0.13.4 Latest Latest
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 Go to latest Published: Apr 21, 2024 License: Apache-2.0 Imports: 28 Imported by: 0

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Constants

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Variables

This section is empty.

Functions

func ErrorContains added in v0.7.0 

func ErrorContains(err, target error) bool

ErrorContains reports whether any error in err's tree matches any error in targets tree.

func TestGetter added in v0.6.3 

func TestGetter(t *testing.T) (share.Getter, *header.ExtendedHeader)

TestGetter provides a testing SingleEDSGetter and the root of the EDS it holds.

func WithSession 

func WithSession(ctx context.Context) context.Context

WithSession stores an empty session in the context, indicating that a blockservice session should be created.

Types

type CascadeGetter added in v0.6.3 

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

CascadeGetter implements custom share.Getter that composes multiple Getter implementations in "cascading" order.

See cascade func for details on cascading.

func NewCascadeGetter added in v0.6.3 

func NewCascadeGetter(getters []share.Getter) *CascadeGetter

NewCascadeGetter instantiates a new CascadeGetter from given share.Getters with given interval.

func (*CascadeGetter) GetEDS added in v0.6.3 

func (cg *CascadeGetter) GetEDS(
	ctx context.Context, header *header.ExtendedHeader,
) (*rsmt2d.ExtendedDataSquare, error)

GetEDS gets a full EDS from any of registered share.Getters in cascading order.

func (*CascadeGetter) GetShare added in v0.6.3 

func (cg *CascadeGetter) GetShare(
	ctx context.Context, header *header.ExtendedHeader, row, col int,
) (share.Share, error)

GetShare gets a share from any of registered share.Getters in cascading order.

func (*CascadeGetter) GetSharesByNamespace added in v0.6.3 

func (cg *CascadeGetter) GetSharesByNamespace(
	ctx context.Context,
	header *header.ExtendedHeader,
	namespace share.Namespace,
) (share.NamespacedShares, error)

GetSharesByNamespace gets NamespacedShares from any of registered share.Getters in cascading order.

type IPLDGetter 

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

IPLDGetter is a share.Getter that retrieves shares from the bitswap network. Result caching is handled by the provided blockservice. A blockservice session will be created for retrieval if the passed context is wrapped with WithSession.

func NewIPLDGetter 

func NewIPLDGetter(bServ blockservice.BlockService) *IPLDGetter

NewIPLDGetter creates a new share.Getter that retrieves shares from the bitswap network.

func (*IPLDGetter) GetEDS 

func (ig *IPLDGetter) GetEDS(
	ctx context.Context,
	header *header.ExtendedHeader,
) (eds *rsmt2d.ExtendedDataSquare, err error)

func (*IPLDGetter) GetShare 

func (ig *IPLDGetter) GetShare(ctx context.Context, header *header.ExtendedHeader, row, col int) (share.Share, error)

GetShare gets a single share at the given EDS coordinates from the bitswap network.

func (*IPLDGetter) GetSharesByNamespace 

func (ig *IPLDGetter) GetSharesByNamespace(
	ctx context.Context,
	header *header.ExtendedHeader,
	namespace share.Namespace,
) (shares share.NamespacedShares, err error)

type ShrexGetter added in v0.7.0 

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

ShrexGetter is a share.Getter that uses the shrex/eds and shrex/nd protocol to retrieve shares.

func NewShrexGetter added in v0.7.0 

func NewShrexGetter(edsClient *shrexeds.Client, ndClient *shrexnd.Client, peerManager *peers.Manager) *ShrexGetter

func (*ShrexGetter) GetEDS added in v0.7.0 

func (sg *ShrexGetter) GetEDS(ctx context.Context, header *header.ExtendedHeader) (*rsmt2d.ExtendedDataSquare, error)

func (*ShrexGetter) GetShare added in v0.7.0 

func (sg *ShrexGetter) GetShare(context.Context, *header.ExtendedHeader, int, int) (share.Share, error)

func (*ShrexGetter) GetSharesByNamespace added in v0.7.0 

func (sg *ShrexGetter) GetSharesByNamespace(
	ctx context.Context,
	header *header.ExtendedHeader,
	namespace share.Namespace,
) (share.NamespacedShares, error)

func (*ShrexGetter) Start added in v0.7.0 

func (sg *ShrexGetter) Start(ctx context.Context) error

func (*ShrexGetter) Stop added in v0.7.0 

func (sg *ShrexGetter) Stop(ctx context.Context) error

func (*ShrexGetter) WithMetrics added in v0.9.2 

func (sg *ShrexGetter) WithMetrics() error

type SingleEDSGetter added in v0.6.3 

type SingleEDSGetter struct {
	EDS *rsmt2d.ExtendedDataSquare
}

SingleEDSGetter contains a single EDS where data is retrieved from. Its primary use is testing, and GetSharesByNamespace is not supported.

func (*SingleEDSGetter) GetEDS added in v0.6.3 

func (seg *SingleEDSGetter) GetEDS(
	_ context.Context,
	header *header.ExtendedHeader,
) (*rsmt2d.ExtendedDataSquare, error)

GetEDS returns a kept EDS if the correct root is given.

func (*SingleEDSGetter) GetShare added in v0.6.3 

func (seg *SingleEDSGetter) GetShare(
	_ context.Context,
	header *header.ExtendedHeader,
	row, col int,
) (share.Share, error)

GetShare gets a share from a kept EDS if exist and if the correct root is given.

func (*SingleEDSGetter) GetSharesByNamespace added in v0.6.3 

func (seg *SingleEDSGetter) GetSharesByNamespace(context.Context, *header.ExtendedHeader, share.Namespace,
) (share.NamespacedShares, error)

GetSharesByNamespace returns NamespacedShares from a kept EDS if the correct root is given.

type StoreGetter 

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

StoreGetter is a share.Getter that retrieves shares from an eds.Store. No results are saved to the eds.Store after retrieval.

func NewStoreGetter 

func NewStoreGetter(store *eds.Store) *StoreGetter

NewStoreGetter creates a new share.Getter that retrieves shares from an eds.Store.

func (*StoreGetter) GetEDS 

func (sg *StoreGetter) GetEDS(
	ctx context.Context, header *header.ExtendedHeader,
) (data *rsmt2d.ExtendedDataSquare, err error)

GetEDS gets the EDS identified by the given root from the EDS store.

func (*StoreGetter) GetShare 

func (sg *StoreGetter) GetShare(ctx context.Context, header *header.ExtendedHeader, row, col int) (share.Share, error)

GetShare gets a single share at the given EDS coordinates from the eds.Store through the corresponding CAR-level blockstore.

func (*StoreGetter) GetSharesByNamespace 

func (sg *StoreGetter) GetSharesByNamespace(
	ctx context.Context,
	header *header.ExtendedHeader,
	namespace share.Namespace,
) (shares share.NamespacedShares, err error)

GetSharesByNamespace gets all EDS shares in the given namespace from the EDS store through the corresponding CAR-level blockstore.

Source Files

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