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5df160e9e5
Blockservice has an explicit dependency on bitswap so it can call NewSession. It should rely on the exchange interfaces though, not on specific implementations. License: MIT Signed-off-by: Hector Sanjuan <hector@protocol.ai>
39 lines
991 B
Go
39 lines
991 B
Go
// Package exchange defines the IPFS exchange interface
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package exchange
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import (
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"context"
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"io"
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blocks "gx/ipfs/Qmej7nf81hi2x2tvjRBF3mcp74sQyuDH4VMYDGd1YtXjb2/go-block-format"
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cid "gx/ipfs/QmcZfnkapfECQGcLZaf9B79NRg7cRa9EnZh4LSbkCzwNvY/go-cid"
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)
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// Interface defines the functionality of the IPFS block exchange protocol.
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type Interface interface { // type Exchanger interface
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Fetcher
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// TODO Should callers be concerned with whether the block was made
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// available on the network?
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HasBlock(blocks.Block) error
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IsOnline() bool
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io.Closer
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}
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// Fetcher is an object that can be used to retrieve blocks
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type Fetcher interface {
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// GetBlock returns the block associated with a given key.
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GetBlock(context.Context, *cid.Cid) (blocks.Block, error)
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GetBlocks(context.Context, []*cid.Cid) (<-chan blocks.Block, error)
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}
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// SessionExchange is an exchange.Interface which supports
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// sessions.
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type SessionExchange interface {
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Interface
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NewSession(context.Context) Interface
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}
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