private void SerializeTxn(BitcoinStream stream, bool witSupported)
{
byte flags = 0;
var version = (witSupported && (this.Inputs.Count == 0 && this.Outputs.Count > 0)) ? this.Version | NoDummyInput : this.Version;
stream.ReadWrite(ref version);
// POS Timestamp
var time = this.Time;
stream.ReadWrite(ref time);
if (witSupported)
{
// Check whether witnesses need to be serialized.
if (HasWitness)
{
flags |= 1;
}
}
if (flags != 0)
{
// Use extended format in case witnesses are to be serialized.
TxInList vinDummy = new TxInList();
stream.ReadWrite <TxInList, TxIn>(ref vinDummy);
stream.ReadWrite(ref flags);
}
TxInList vin = this.Inputs;
stream.ReadWrite <TxInList, TxIn>(ref vin);
vin.Transaction = this;
TxOutList vout = this.Outputs;
stream.ReadWrite <TxOutList, TxOut>(ref vout);
vout.Transaction = this;
if ((flags & 1) != 0)
{
StratisWitness wit = new StratisWitness(this.Inputs);
wit.ReadWrite(stream);
}
LockTime lockTime = this.LockTime;
stream.ReadWriteStruct(ref lockTime);
}
private void DeserializeTxn(BitcoinStream stream, bool witSupported)
{
byte flags = 0;
UInt32 nVersionTemp = 0;
stream.ReadWrite(ref nVersionTemp);
// POS time stamp
uint nTimeTemp = 0;
stream.ReadWrite(ref nTimeTemp);
TxInList vinTemp = new TxInList();
TxOutList voutTemp = new TxOutList();
// Try to read the vin. In case the dummy is there, this will be read as an empty vector.
stream.ReadWrite <TxInList, TxIn>(ref vinTemp);
var hasNoDummy = (nVersionTemp & NoDummyInput) != 0 && vinTemp.Count == 0;
if (witSupported && hasNoDummy)
{
nVersionTemp = nVersionTemp & ~NoDummyInput;
}
if (vinTemp.Count == 0 && witSupported && !hasNoDummy)
{
// We read a dummy or an empty vin.
stream.ReadWrite(ref flags);
if (flags != 0)
{
// Assume we read a dummy and a flag.
stream.ReadWrite <TxInList, TxIn>(ref vinTemp);
vinTemp.Transaction = this;
stream.ReadWrite <TxOutList, TxOut>(ref voutTemp);
voutTemp.Transaction = this;
}
else
{
// Assume read a transaction without output.
voutTemp = new TxOutList();
voutTemp.Transaction = this;
}
}
else
{
// We read a non-empty vin. Assume a normal vout follows.
stream.ReadWrite <TxOutList, TxOut>(ref voutTemp);
voutTemp.Transaction = this;
}
if (((flags & 1) != 0) && witSupported)
{
// The witness flag is present, and we support witnesses.
flags ^= 1;
StratisWitness wit = new StratisWitness(vinTemp);
wit.ReadWrite(stream);
}
if (flags != 0)
{
// Unknown flag in the serialization
throw new FormatException("Unknown transaction optional data");
}
LockTime lockTimeTemp = LockTime.Zero;
stream.ReadWriteStruct(ref lockTimeTemp);
this.Version = nVersionTemp;
this.Time = nTimeTemp; // POS Timestamp
vinTemp.ForEach(i => this.AddInput(i));
voutTemp.ForEach(i => this.AddOutput(i));
this.LockTime = lockTimeTemp;
}
