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33 lines
743 B
33 lines
743 B
6 years ago
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package p2p
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import (
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"context"
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"fmt"
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"io"
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peer "github.com/libp2p/go-libp2p-peer"
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)
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// GroupID is a multicast group ID.
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//
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// It is a binary string,
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// conducive to layering and scoped generation using cryptographic hash.
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//
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// Applications define their own group ID, without central allocation.
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// A cryptographically secure random string of enough length – 32 bytes for
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// example – may be used.
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type GroupID string
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func (id GroupID) String() string {
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return fmt.Sprintf("%x", string(id))
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}
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// GroupReceiver is a multicast group message receiver interface.
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type GroupReceiver interface {
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// Close closes this receiver.
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io.Closer
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// Receive a message.
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Receive(ctx context.Context) (msg []byte, sender peer.ID, err error)
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}
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