f3849f5c10
* Structs and wire messages for HTLCs * Wire protocol for a state machine with no blocking(!!!) (I will write the state machine) TL;DR: Can do multiple HTLC modifications in-flight, dead simple wire protocol. Both sides can update their Commitments unliaterally without waiting for the other party's signature. Will have basic/preliminary notes in the README * Added **swp to .gitignore because of vim annoyances
91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
package lnwire
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import (
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"fmt"
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"io"
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)
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//Multiple Clearing Requests are possible by putting this inside an array of
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//clearing requests
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type HTLCSettleRequest struct {
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//We can use a different data type for this if necessary...
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ChannelID uint64
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//ID of this request
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StagingID uint64
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//Redemption Proofs (R-Values)
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RedemptionProofs []*[20]byte
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}
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func (c *HTLCSettleRequest) Decode(r io.Reader, pver uint32) error {
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//ChannelID(8)
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//StagingID(8)
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//Expiry(4)
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//Amount(4)
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//NextHop(20)
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//ContractType(1)
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//RedemptionHashes (numOfHashes * 20 + numOfHashes)
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//Blob(2+blobsize)
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err := readElements(r,
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&c.ChannelID,
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&c.StagingID,
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&c.RedemptionProofs,
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)
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if err != nil {
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return err
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}
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return nil
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}
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//Creates a new HTLCSettleRequest
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func NewHTLCSettleRequest() *HTLCSettleRequest {
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return &HTLCSettleRequest{}
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}
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//Serializes the item from the HTLCSettleRequest struct
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//Writes the data to w
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func (c *HTLCSettleRequest) Encode(w io.Writer, pver uint32) error {
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err := writeElements(w,
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c.ChannelID,
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c.StagingID,
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c.RedemptionProofs,
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)
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if err != nil {
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return err
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}
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return nil
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}
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func (c *HTLCSettleRequest) Command() uint32 {
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return CmdHTLCSettleRequest
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}
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func (c *HTLCSettleRequest) MaxPayloadLength(uint32) uint32 {
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//21*15+16
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return 331
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}
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//Makes sure the struct data is valid (e.g. no negatives or invalid pkscripts)
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func (c *HTLCSettleRequest) Validate() error {
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//We're good!
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return nil
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}
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func (c *HTLCSettleRequest) String() string {
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var redemptionProofs string
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for i, rh := range c.RedemptionProofs {
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redemptionProofs += fmt.Sprintf("\n\tSlice\t%d\n", i)
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redemptionProofs += fmt.Sprintf("\t\tRedemption Proof: %x\n", *rh)
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}
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return fmt.Sprintf("\n--- Begin HTLCSettleRequest ---\n") +
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fmt.Sprintf("ChannelID:\t%d\n", c.ChannelID) +
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fmt.Sprintf("StagingID:\t%d\n", c.StagingID) +
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fmt.Sprintf("RedemptionHashes:") +
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redemptionProofs +
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fmt.Sprintf("--- End HTLCSettleRequest ---\n")
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}
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