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use fractional base vsize in adjusted vsize

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Mononaut 2023-05-31 11:45:47 -04:00
parent 0e5dc21854
commit ee1ec414ed
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1 changed files with 3 additions and 2 deletions
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backend/src/api/transaction-utils.ts
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@ -67,11 +67,12 @@ class TransactionUtils {
public extendMempoolTransaction(transaction: IEsploraApi.Transaction): MempoolTransactionExtended {
const vsize = Math.ceil(transaction.weight / 4);
const fractionalVsize = (transaction.weight / 4);
const sigops = this.countSigops(transaction);
// https://github.com/bitcoin/bitcoin/blob/e9262ea32a6e1d364fb7974844fadc36f931f8c6/src/policy/policy.cpp#L295-L298
const adjustedVsize = Math.max(vsize, sigops * 5); // adjusted vsize = Max(weight, sigops * bytes_per_sigop) / witness_scale_factor
const adjustedVsize = Math.max(fractionalVsize, sigops * 5); // adjusted vsize = Max(weight, sigops * bytes_per_sigop) / witness_scale_factor
const feePerVbytes = Math.max(Common.isLiquid() ? 0.1 : 1,
(transaction.fee || 0) / vsize);
(transaction.fee || 0) / fractionalVsize);
const adjustedFeePerVsize = Math.max(Common.isLiquid() ? 0.1 : 1,
(transaction.fee || 0) / adjustedVsize);
const transactionExtended: MempoolTransactionExtended = Object.assign(transaction, {