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crate::ix!();
/**
| An input of a transaction. It contains
| the location of the previous transaction's
| output that it claims and a signature
| that matches the output's public key.
|
*/
#[derive(Clone,Serialize,Deserialize)]
pub struct TxIn {
pub prevout: OutPoint,
pub script_sig: Script,
pub n_sequence: u32,
/**
| Only serialized through CTransaction
|
*/
pub script_witness: ScriptWitness,
}
impl RecursiveDynamicUsage for TxIn {
fn recursive_dynamic_usage(&self) -> usize {
todo!();
/*
size_t mem = RecursiveDynamicUsage(in.scriptSig) + RecursiveDynamicUsage(in.prevout) + memusage::DynamicUsage(in.scriptWitness.stack);
for (std::vector<std::vector<unsigned char> >::const_iterator it = in.scriptWitness.stack.begin(); it != in.scriptWitness.stack.end(); it++) {
mem += memusage::DynamicUsage(*it);
}
return mem;
*/
}
}
pub mod tx_in {
/**
| Setting nSequence to this value for
| every input in a transaction disables
| nLockTime.
|
*/
pub const SEQUENCE_FINAL: u32 = 0xffffffff;
/**
| Below flags apply in the context of BIP
| 68
|
| If this flag set, CTxIn::nSequence
| is NOT interpreted as a relative lock-time.
|
*/
pub const SEQUENCE_LOCKTIME_DISABLE_FLAG: u32 = 1 << 31;
/**
| If CTxIn::nSequence encodes a relative
| lock-time and this flag is set, the relative
| lock-time has units of 512 seconds,
| otherwise it specifies blocks with
| a granularity of 1.
|
*/
pub const SEQUENCE_LOCKTIME_TYPE_FLAG: u32 = 1 << 22;
/**
| If CTxIn::nSequence encodes a relative
| lock-time, this mask is applied to extract
| that lock-time from the sequence field.
|
*/
pub const SEQUENCE_LOCKTIME_MASK: u32 = 0x0000ffff;
/**
| In order to use the same number of bits
| to encode roughly the same wall-clock
| duration, and because blocks are naturally
| limited to occur every 600s on average,
| the minimum granularity for time-based
| relative lock-time is fixed at 512 seconds.
|
| Converting from CTxIn::nSequence
| to seconds is performed by multiplying
| by 512 = 2^9, or equivalently shifting
| up by 9 bits.
|
*/
pub const SEQUENCE_LOCKTIME_GRANULARITY: i32 = 9;
}
impl Default for TxIn {
fn default() -> Self {
todo!();
/*
nSequence = SEQUENCE_FINAL;
*/
}
}
lazy_static!{
/*
SERIALIZE_METHODS(CTxIn, obj) {
READWRITE(obj.prevout, obj.scriptSig, obj.nSequence);
}
*/
}
impl PartialEq<TxIn> for TxIn {
#[inline] fn eq(&self, other: &TxIn) -> bool {
todo!();
/*
return (a.prevout == b.prevout &&
a.scriptSig == b.scriptSig &&
a.nSequence == b.nSequence);
*/
}
}
impl Eq for TxIn {}
impl TxIn {
pub fn new_from_outpoint(
prevout_in: OutPoint,
script_sig_in: Option<Script>,
n_sequence_in: Option<u32>) -> Self {
let script_sig_in: Script =
script_sig_in.unwrap_or(Script::default());
let n_sequence_in: u32 =
n_sequence_in.unwrap_or(tx_in::SEQUENCE_FINAL);
todo!();
/*
prevout = prevoutIn;
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
*/
}
pub fn new(
hash_prev_tx: u256,
n_out: u32,
script_sig_in: Option<Script>,
n_sequence_in: Option<u32>) -> Self {
let script_sig_in: Script =
script_sig_in.unwrap_or(Script::default());
let n_sequence_in: u32 =
n_sequence_in.unwrap_or(tx_in::SEQUENCE_FINAL);
todo!();
/*
prevout = OutPoint(hashPrevTx, nOut);
scriptSig = scriptSigIn;
nSequence = nSequenceIn;
*/
}
pub fn to_string(&self) -> String {
todo!();
/*
std::string str;
str += "CTxIn(";
str += prevout.ToString();
if (prevout.IsNull())
str += strprintf(", coinbase %s", HexStr(scriptSig));
else
str += strprintf(", scriptSig=%s", HexStr(scriptSig).substr(0, 24));
if (nSequence != tx_in::SEQUENCE_FINAL)
str += strprintf(", nSequence=%u", nSequence);
str += ")";
return str;
*/
}
}