/**
* Used only in creation of the genesis block.
*/
TransactionInput(NetworkParameters params, Transaction parentTransaction, byte[] scriptBytes) {
super(params);
this.scriptBytes = scriptBytes;
this.outpoint = new TransactionOutPoint(params, NO_SEQUENCE, (Transaction)null);
this.sequence = NO_SEQUENCE;
this.parentTransaction = parentTransaction;
length = 40 + (scriptBytes == null ? 1 : VarInt.SizeInBytesOf(scriptBytes.Length) + scriptBytes.length);
}
/**
* Creates an UNSIGNED input that links to the given output
*/
TransactionInput(NetworkParameters params, Transaction parentTransaction, TransactionOutput output) {
super(params);
long outputIndex = output.getIndex();
outpoint = new TransactionOutPoint(params, outputIndex, output.parentTransaction);
scriptBytes = EMPTY_ARRAY;
sequence = NO_SEQUENCE;
this.parentTransaction = parentTransaction;
length = 41;
}
public TransactionInput(NetworkParameters params, Transaction parentTransaction,
byte[] scriptBytes,
TransactionOutPoint outpoint) {
super(params);
this.scriptBytes = scriptBytes;
this.outpoint = outpoint;
this.sequence = NO_SEQUENCE;
this.parentTransaction = parentTransaction;
length = 40 + (scriptBytes == null ? 1 : VarInt.sizeOf(scriptBytes.length) + scriptBytes.length);
}
public TransactionOutPoint(NetworkParameters params, long index, Transaction fromTx) {
super(params);
this.index = index;
if (fromTx != null) {
this.hash = fromTx.getHash();
this.fromTx = fromTx;
} else {
// This happens when constructing the genesis block.
hash = Sha256Hash.ZERO_HASH;
}
length = MESSAGE_LENGTH;
}
/// <summary>
/// <exception cref="ProtocolException"/>
/// </summary>
private void parseTransactions()
{
if(transactionsParsed)
{ return; }
Cursor=Offset+HeaderSize;
optimalEncodingMessageSize=HeaderSize;
if(Bytes.Length==Cursor)
{
// This message is just a header, it has no transactions.
transactionsParsed=true;
transactionBytesValid=false;
return;
}
ulong numTransactions=ReadVarInt().Value;
optimalEncodingMessageSize+=VarInt.SizeInBytesOf(numTransactions);
Transactions=new List<Transaction>((int)numTransactions);
for(ulong i=0;i<numTransactions;i++)
{
Transaction tx=new Transaction(Parameters,Bytes,Cursor,this,ParseLazy,ParseRetain,UnknownLength);
Transactions.Add(tx);
Cursor+=tx.MessageSize;
optimalEncodingMessageSize+=tx.OptimalEncodingMessageSize;
}
// No need to set length here. If length was not provided then it should be set at the end of parseLight().
// If this is a genuine lazy parse then length must have been provided to the constructor.
transactionsParsed=true;
transactionBytesValid=ParseRetain;
}
/// <summary>
/// Adds a transaction to this block, with or without checking the sanity of doing so.
/// <exception cref="VerificationException"></exception>
/// </summary>
/// <param name="transaction"></param>
/// <param name="runSanityChecks"></param>
public void addTransaction(Transaction transaction,bool runSanityChecks)
{
if(Transactions==null)
{ Transactions=new List<Transaction>(); }
transaction.SetParent(this);
if(runSanityChecks)
{
if(Transactions.Count==0 && !transaction.IsCoinBase)
{ throw new VerificationException("Attempted to add a non-coinbase transaction as the first transaction: "+t); }
if(Transactions.Count>0 && transaction.IsCoinBase)
{ throw new VerificationException("Attempted to add a coinbase transaction when there already is one: "+t); }
}
Transactions.Add(transaction);
AdjustLength(Transactions.Count,transaction.Length);
// Force a recalculation next time the values are needed.
MerkleRoot=null;
hash=null;
}
/// <summary>
/// Adds a transaction to this block. The nonce and merkle root are invalid after this.
/// </summary>
/// <param name="transaction"></param>
public void addTransaction(Transaction transaction)
{
addTransaction(transaction,false);
}
public TransactionConfidence(Transaction transaction)
{
// Assume a default number of peers for our set.
broadcastBy = new CopyOnWriteArrayList<PeerAddress>();
transaction = tx;
}