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4226232881
In this commit, we export the ReadElements and WriteElements functions. We do this as exporting these functions makes it possible for outside packages to define serializations which use the BOLT 1.0 wire format.
78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
package lnwire
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import (
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"io"
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"github.com/btcsuite/btcd/chaincfg/chainhash"
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)
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// QueryChannelRange is a message sent by a node in order to query the
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// receiving node of the set of open channel they know of with short channel
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// ID's after the specified block height, capped at the number of blocks beyond
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// that block height. This will be used by nodes upon initial connect to
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// synchronize their views of the network.
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type QueryChannelRange struct {
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// ChainHash denotes the target chain that we're trying to synchronize
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// channel graph state for.
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ChainHash chainhash.Hash
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// FirstBlockHeight is the first block in the query range. The
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// responder should send all new short channel IDs from this block
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// until this block plus the specified number of blocks.
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FirstBlockHeight uint32
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// NumBlocks is the number of blocks beyond the first block that short
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// channel ID's should be sent for.
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NumBlocks uint32
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}
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// NewQueryChannelRange creates a new empty QueryChannelRange message.
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func NewQueryChannelRange() *QueryChannelRange {
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return &QueryChannelRange{}
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}
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// A compile time check to ensure QueryChannelRange implements the
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// lnwire.Message interface.
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var _ Message = (*QueryChannelRange)(nil)
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// Decode deserializes a serialized QueryChannelRange message stored in the
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// passed io.Reader observing the specified protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (q *QueryChannelRange) Decode(r io.Reader, pver uint32) error {
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return ReadElements(r,
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q.ChainHash[:],
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&q.FirstBlockHeight,
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&q.NumBlocks,
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)
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}
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// Encode serializes the target QueryChannelRange into the passed io.Writer
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// observing the protocol version specified.
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//
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// This is part of the lnwire.Message interface.
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func (q *QueryChannelRange) Encode(w io.Writer, pver uint32) error {
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return WriteElements(w,
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q.ChainHash[:],
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q.FirstBlockHeight,
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q.NumBlocks,
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)
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}
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// MsgType returns the integer uniquely identifying this message type on the
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// wire.
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//
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// This is part of the lnwire.Message interface.
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func (q *QueryChannelRange) MsgType() MessageType {
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return MsgQueryChannelRange
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}
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// MaxPayloadLength returns the maximum allowed payload size for a
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// QueryChannelRange complete message observing the specified protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (q *QueryChannelRange) MaxPayloadLength(uint32) uint32 {
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// 32 + 4 + 4
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return 40
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}
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