lnd.xprv/lnwire/htlc_settlerequest.go
Joseph Poon 1981001a29 Started working on state machine
* Added description in lnwire/README.md for state machine
* Figured out mutex stuff...
* Started the State Machine (using dummy functions for net/db)
* Minor corrections in wire protocol (changed some names/types)
    - Renamed StagingID to HTLCKey of type HTLCKey (uint64)
2016-01-14 23:58:04 -08:00

91 lines
1.9 KiB
Go

package lnwire
import (
"fmt"
"io"
)
//Multiple Clearing Requests are possible by putting this inside an array of
//clearing requests
type HTLCSettleRequest struct {
//We can use a different data type for this if necessary...
ChannelID uint64
//ID of this request
HTLCKey HTLCKey
//Redemption Proofs (R-Values)
RedemptionProofs []*[20]byte
}
func (c *HTLCSettleRequest) Decode(r io.Reader, pver uint32) error {
//ChannelID(8)
//HTLCKey(8)
//Expiry(4)
//Amount(4)
//NextHop(20)
//ContractType(1)
//RedemptionHashes (numOfHashes * 20 + numOfHashes)
//Blob(2+blobsize)
err := readElements(r,
&c.ChannelID,
&c.HTLCKey,
&c.RedemptionProofs,
)
if err != nil {
return err
}
return nil
}
//Creates a new HTLCSettleRequest
func NewHTLCSettleRequest() *HTLCSettleRequest {
return &HTLCSettleRequest{}
}
//Serializes the item from the HTLCSettleRequest struct
//Writes the data to w
func (c *HTLCSettleRequest) Encode(w io.Writer, pver uint32) error {
err := writeElements(w,
c.ChannelID,
c.HTLCKey,
c.RedemptionProofs,
)
if err != nil {
return err
}
return nil
}
func (c *HTLCSettleRequest) Command() uint32 {
return CmdHTLCSettleRequest
}
func (c *HTLCSettleRequest) MaxPayloadLength(uint32) uint32 {
//21*15+16
return 331
}
//Makes sure the struct data is valid (e.g. no negatives or invalid pkscripts)
func (c *HTLCSettleRequest) Validate() error {
//We're good!
return nil
}
func (c *HTLCSettleRequest) String() string {
var redemptionProofs string
for i, rh := range c.RedemptionProofs {
redemptionProofs += fmt.Sprintf("\n\tSlice\t%d\n", i)
redemptionProofs += fmt.Sprintf("\t\tRedemption Proof: %x\n", *rh)
}
return fmt.Sprintf("\n--- Begin HTLCSettleRequest ---\n") +
fmt.Sprintf("ChannelID:\t%d\n", c.ChannelID) +
fmt.Sprintf("HTLCKey:\t%d\n", c.HTLCKey) +
fmt.Sprintf("RedemptionHashes:") +
redemptionProofs +
fmt.Sprintf("--- End HTLCSettleRequest ---\n")
}