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Clarify nLockTime-by-time comment in CheckFinalTx()

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Peter Todd 2015-11-13 16:36:54 -05:00
parent 748321eb5b
commit c277a63ed7
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1 changed files with 5 additions and 4 deletions
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src/main.cpp
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@ -670,10 +670,11 @@ bool CheckFinalTx(const CTransaction &tx, int flags)
// IsFinalTx() with one more than chainActive.Height().
const int nBlockHeight = chainActive.Height() + 1;
// Timestamps on the other hand don't get any special treatment,
// because we can't know what timestamp the next block will have,
// and there aren't timestamp applications where it matters.
// However this changes once median past time-locks are enforced:
// BIP113 will require that time-locked transactions have nLockTime set to
// less than the median time of the previous block they're contained in.
// When the next block is created its previous block will be the current
// chain tip, so we use that to calculate the median time passed to
// IsFinalTx() if LOCKTIME_MEDIAN_TIME_PAST is set.
const int64_t nBlockTime = (flags & LOCKTIME_MEDIAN_TIME_PAST)
? chainActive.Tip()->GetMedianTimePast()
: GetAdjustedTime();