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Merge pull request #148 from libp2p/feat/supports-alloc

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Interface to verify if a peer supports a protocol without making allocations.
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Aarsh Shah 2020-05-14 16:18:09 +05:30 committed by GitHub
commit 1c39960696
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1 changed files with 8 additions and 0 deletions
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8
peerstore/peerstore.go
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@ -233,5 +233,13 @@ type ProtoBook interface {
AddProtocols(peer.ID, ...string) error
SetProtocols(peer.ID, ...string) error
RemoveProtocols(peer.ID, ...string) error
// SupportsProtocols returns the set of protocols the peer supports from among the given protocols.
// If the returned error is not nil, the result is indeterminate.
SupportsProtocols(peer.ID, ...string) ([]string, error)
// FirstSupportedProtocol returns the first protocol that the peer supports among the given protocols.
// If the peer does not support any of the given protocols, this function will return an empty string and a nil error.
// If the returned error is not nil, the result is indeterminate.
FirstSupportedProtocol(peer.ID, ...string) (string, error)
}