lightning_signer::util::transaction_utils

Function decode_commitment_tx

Source 
pub fn decode_commitment_tx(
    tx: &Transaction,
    holder_per_commitment_point: &PublicKey,
    cp_per_commitment_point: &Option<PublicKey>,
    params: &ChannelTransactionParameters,
    secp_ctx: &Secp256k1<All>,
) -> (Option<u32>, Vec<u32>)
Expand description

Decode a commitment transaction and return the outputs that we need to watch. Our main output index and any HTLC output indexes are returned.

cp_per_commitment_point is filled in if known, otherwise None. It might not be known if the signer is old, before we started collecting counterparty secrets. If it is None, then we won’t be able to tell the difference between a counterparty to-self output and an HTLC output.

The counterparty parameters must be populated.