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EcbMode: Inline the DelayedFlush() method.

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hashlag
2026-07-30 01:06:21 +03:00
parent 6ae4df4bfc
commit c9a262bac4
1 changed files with 13 additions and 30 deletions
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Chaos/Cipher/Block/Mode/Ecb.hpp
+13 -30
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@@ -198,33 +198,6 @@ public:
return out;
}
template<typename OutputIt>
struct DelayedFlushResult
{
OutputIt Next_;
uint64_t Written_;
};
template<typename OutputIt>
DelayedFlushResult<OutputIt> DelayedFlush(OutputIt outBegin, OutputIt outEnd)
{
if (PreviousBlockSaved_)
{
OutputIt result = EnsureCopy(outBegin, outEnd,
PreviousBlock_.Begin(), PreviousBlock_.End());
PreviousBlock_ = DecryptedBlock_;
return { .Next_ = result, .Written_ = CipherT::BlockSize };
}
else
{
PreviousBlock_ = DecryptedBlock_;
PreviousBlockSaved_ = true;
return { .Next_ = outBegin, .Written_ = 0 };
}
}
template<typename OutputIt, typename InputIt>
uint64_t UpdateImpl(OutputIt outBegin, OutputIt outEnd,
InputIt inBegin, InputIt inEnd)
@@ -242,10 +215,20 @@ public:
Decryptor_.DecryptBlock(DecryptedBlock_.Begin(), DecryptedBlock_.End(),
Block_.Begin(), Block_.End());
auto result = DelayedFlush(out, outEnd);
out = result.Next_;
written += result.Written_;
if (PreviousBlockSaved_)
{
out = EnsureCopy(out, outEnd,
PreviousBlock_.Begin(), PreviousBlock_.End());
PreviousBlock_ = DecryptedBlock_;
written += CipherT::BlockSize;
}
else
{
PreviousBlock_ = DecryptedBlock_;
PreviousBlockSaved_ = true;
}
}
}