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.
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
package lnwire
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import "io"
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// Init is the first message reveals the features supported or required by this
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// node. Nodes wait for receipt of the other's features to simplify error
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// diagnosis where features are incompatible. Each node MUST wait to receive
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// init before sending any other messages.
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type Init struct {
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// GlobalFeatures is feature vector which affects HTLCs and thus are
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// also advertised to other nodes.
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GlobalFeatures *RawFeatureVector
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// LocalFeatures is feature vector which only affect the protocol
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// between two nodes.
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LocalFeatures *RawFeatureVector
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}
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// NewInitMessage creates new instance of init message object.
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func NewInitMessage(gf *RawFeatureVector, lf *RawFeatureVector) *Init {
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return &Init{
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GlobalFeatures: gf,
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LocalFeatures: lf,
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}
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}
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// A compile time check to ensure Init implements the lnwire.Message
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// interface.
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var _ Message = (*Init)(nil)
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// Decode deserializes a serialized Init message stored in the passed
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// 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 (msg *Init) Decode(r io.Reader, pver uint32) error {
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return ReadElements(r,
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&msg.GlobalFeatures,
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&msg.LocalFeatures,
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)
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}
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// Encode serializes the target Init into the passed io.Writer observing
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// 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 (msg *Init) Encode(w io.Writer, pver uint32) error {
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return WriteElements(w,
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msg.GlobalFeatures,
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msg.LocalFeatures,
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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 (msg *Init) MsgType() MessageType {
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return MsgInit
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}
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// MaxPayloadLength returns the maximum allowed payload size for an Init
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// 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 (msg *Init) MaxPayloadLength(uint32) uint32 {
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return 2 + maxAllowedSize + 2 + maxAllowedSize
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}
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