public override void ReadWrite(BitcoinStream stream)
{
bool witSupported = (((uint)stream.TransactionOptions & (uint)TransactionOptions.Witness) != 0) &&
stream.ProtocolVersion >= ProtocolVersion.WITNESS_VERSION;
byte flags = 0;
if (!stream.Serializing)
{
stream.ReadWrite(ref this.nVersion);
// POS time stamp
stream.ReadWrite(ref this.nTime);
/* Try to read the vin. In case the dummy is there, this will be read as an empty vector. */
stream.ReadWrite <TxInList, TxIn>(ref this.vin);
bool hasNoDummy = (this.nVersion & NoDummyInput) != 0 && this.vin.Count == 0;
if (witSupported && hasNoDummy)
{
this.nVersion = this.nVersion & ~NoDummyInput;
}
if (this.vin.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 this.vin);
this.vin.Transaction = this;
stream.ReadWrite <TxOutList, TxOut>(ref this.vout);
this.vout.Transaction = this;
}
else
{
/* Assume read a transaction without output. */
this.vout = new TxOutList();
this.vout.Transaction = this;
}
}
else
{
/* We read a non-empty vin. Assume a normal vout follows. */
stream.ReadWrite <TxOutList, TxOut>(ref this.vout);
this.vout.Transaction = this;
}
if (((flags & 1) != 0) && witSupported)
{
/* The witness flag is present, and we support witnesses. */
flags ^= 1;
var wit = new Witness(this.Inputs);
wit.ReadWrite(stream);
}
if (flags != 0)
{
/* Unknown flag in the serialization */
throw new FormatException("Unknown transaction optional data");
}
}
else
{
uint version = (witSupported && (this.vin.Count == 0 && this.vout.Count > 0)) ? this.nVersion | NoDummyInput : this.nVersion;
stream.ReadWrite(ref version);
// the POS time stamp
stream.ReadWrite(ref this.nTime);
if (witSupported)
{
/* Check whether witnesses need to be serialized. */
if (this.HasWitness)
{
flags |= 1;
}
}
if (flags != 0)
{
/* Use extended format in case witnesses are to be serialized. */
var vinDummy = new TxInList();
stream.ReadWrite <TxInList, TxIn>(ref vinDummy);
stream.ReadWrite(ref flags);
}
stream.ReadWrite <TxInList, TxIn>(ref this.vin);
this.vin.Transaction = this;
stream.ReadWrite <TxOutList, TxOut>(ref this.vout);
this.vout.Transaction = this;
if ((flags & 1) != 0)
{
var wit = new Witness(this.Inputs);
wit.ReadWrite(stream);
}
}
stream.ReadWriteStruct(ref this.nLockTime);
}