extension

package

v1.7.3 Latest Latest Go to latest Published: Apr 8, 2021 License: Apache-2.0, MIT Imports: 8 Imported by: 0

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Repository

github.com/chenjianmei111/go-data-transfer

Documentation ¶

Index ¶

Constants
Variables
func GetTransferData(extendedData GsExtended) (datatransfer.Message, error)
func ToExtensionData(msg datatransfer.Message, supportedExtensions []graphsync.ExtensionName) ([]graphsync.ExtensionData, error)
type GsExtended

Constants ¶

View Source

const (
	// ExtensionDataTransfer1_1 is the identifier for the current data transfer extension to graphsync
	ExtensionDataTransfer1_1 = graphsync.ExtensionName("fil/data-transfer/1.1")
	// ExtensionDataTransfer1_0 is the identifier for the legacy data transfer extension to graphsync
	ExtensionDataTransfer1_0 = graphsync.ExtensionName("fil/data-transfer")
)

Variables ¶

View Source

var ProtocolMap = map[graphsync.ExtensionName]protocol.ID{
	ExtensionDataTransfer1_1: datatransfer.ProtocolDataTransfer1_1,
	ExtensionDataTransfer1_0: datatransfer.ProtocolDataTransfer1_0,
}

ProtocolMap maps graphsync extensions to their libp2p protocols

Functions ¶

func GetTransferData ¶

func GetTransferData(extendedData GsExtended) (datatransfer.Message, error)

GetTransferData unmarshals extension data. Returns:

nil + nil if the extension is not found
nil + error if the extendedData fails to unmarshal
unmarshaled ExtensionDataTransferData + nil if all goes well

func ToExtensionData ¶

func ToExtensionData(msg datatransfer.Message, supportedExtensions []graphsync.ExtensionName) ([]graphsync.ExtensionData, error)

ToExtensionData converts a message to a graphsync extension

Types ¶

type GsExtended ¶

type GsExtended interface {
	Extension(name graphsync.ExtensionName) ([]byte, bool)
}

GsExtended is a small interface used by getExtensionData

Source Files ¶

View all Source files

gsextension.go

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