// Check for standard transaction types
// @param[in] mapInputs Map of previous transactions that have outputs we're spending
// @return True if all inputs (scriptSigs) use only standard transaction forms
private bool AreInputsStandard(Transaction tx, MempoolCoinView mapInputs)
{
if (tx.IsCoinBase)
{
return(true); // Coinbases don't use vin normally
}
foreach (TxIn txin in tx.Inputs)
{
var prev = mapInputs.GetOutputFor(txin);
var template = StandardScripts.GetTemplateFromScriptPubKey(prev.ScriptPubKey);
if (template == null)
{
return(false);
}
if (template.Type == TxOutType.TX_SCRIPTHASH)
{
if (prev.ScriptPubKey.GetSigOpCount(true) > 15) //MAX_P2SH_SIGOPS
{
return(false);
}
}
}
return(true);
}
/// <inheritdoc />
public async Task <UnspentOutputs> GetUnspentTransactionAsync(uint256 trxid)
{
var txInfo = await this.InfoAsync(trxid);
if (txInfo == null)
{
return(null);
}
var memPoolCoinView = new MempoolCoinView(this.coinView, this.memPool, this.MempoolLock, this.Validator);
await memPoolCoinView.LoadViewAsync(txInfo.Trx);
return(memPoolCoinView.GetCoins(trxid));
}
/// <inheritdoc />
public async Task <UnspentOutputs> GetUnspentTransactionAsync(uint256 trxid)
{
TxMempoolInfo txInfo = await this.InfoAsync(trxid);
if (txInfo == null)
{
this.logger.LogTrace("(-):[TX_IS_NULL]");
return(null);
}
var memPoolCoinView = new MempoolCoinView(this.coinView, this.memPool, this.MempoolLock, this.Validator);
await memPoolCoinView.LoadViewAsync(txInfo.Trx);
UnspentOutputs unspentOutputs = memPoolCoinView.GetCoins(trxid);
return(unspentOutputs);
}
/// <inheritdoc />
public async Task <UnspentOutput> GetUnspentTransactionAsync(OutPoint outPoint)
{
TxMempoolInfo txInfo = this.Info(outPoint.Hash);
if (txInfo == null)
{
this.logger.LogTrace("(-):[TX_IS_NULL]");
return(null);
}
var memPoolCoinView = new MempoolCoinView(this.network, this.coinView, this.memPool, this.MempoolLock, this.Validator);
await this.MempoolLock.ReadAsync(() => { memPoolCoinView.LoadViewLocked(txInfo.Trx); });
UnspentOutput unspentOutput = memPoolCoinView.Set.AccessCoins(outPoint);
return(unspentOutput);
}
private bool IsWitnessStandard(Transaction tx, MempoolCoinView mapInputs)
{
// TODO: Implement Witness Code
return(true);
}
